Cheap flights from Cologne to Istanbul from $62 CGN, QKL, QKU → IST, SAW
Cologne Bonn Airport (CGN), Cologne Hbf Railway Station (QKL), Messe/Deutz Rail Station (QKU) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)
The cheapest return found recently is $110 with Ajet, 1 Dec – 8 Dec, found 2 days ago. The cheapest one-way found recently is $62 with Ajet, 27 Jan 2027, found 2 days ago.
- Cheapest one-way found recently
- $62, Ajet, found 2 days ago
- Cheapest return found recently
- $110, 1 Dec to 8 Dec
- Usual return price
- $115 to $240
- Cheapest month to fly
- December 2026, return fares from $105 found in the last 7 days
- Airlines with nonstop flights
- Turkish Airlines, Ajet, Pegasus Airlines
- Shortest nonstop flight found
- 3 h 15 min
Return
The cheapest return fare on each of 59 departure dates is usually $115 to $240.
Cheapest return found recently
$110
1 Dec – 8 Dec · Ajet
Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW)
Leaves 3:55 p.m. · Return leaves 9:40 p.m. · 6 h 50 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$110
1 Dec – 8 Dec · Ajet
Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW)
Leaves 3:55 p.m. · Return leaves 9:40 p.m. · 6 h 50 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$110 1 Dec – 8 Decfound 2 days agoSee prices for these dates
$105 4 Dec – 6 Decfound 4 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $101 to $120.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 59 departure dates from 13 Nov to 1 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 7-night return fares on 3 other departure dates within 3 days of 1 Dec, and none is cheaper.
Every date we hold
931 fares on 59 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 20 Nov | $146 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 14 Nov – 6 Dec | $112 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 15 Nov – 19 Nov | $145 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 16 Nov – 23 Nov | $128 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 17 Nov – 24 Nov | $136 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 8 days ago | See prices for these dates |
| 18 Nov – 22 Nov | $160 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 19 Nov – 1 Dec | $115 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 21 Nov – 25 Nov | $172 | Air Serbia | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 22 Nov – 26 Nov | $135 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 23 Nov – 27 Nov | $117 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 24 Nov – 1 Dec | $111 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 25 Nov – 2 Dec | $113 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 26 Nov – 3 Dec | $116 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 27 Nov – 4 Dec | $114 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 28 Nov – 5 Dec | $111 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 29 Nov – 3 Dec | $118 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 30 Nov – 7 Dec | $111 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 1 Dec – 8 Dec | $110 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 2 Dec – 8 Dec | $113 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 3 Dec – 10 Jan 2027 | $251 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back 2 stops | found 6 days ago | See prices for these dates |
| 4 Dec – 6 Dec | $105 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 5 Dec – 10 Dec | $116 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 6 Dec – 13 Dec | $114 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 7 Dec – 14 Dec | $114 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 8 Dec – 15 Dec | $110 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 9 Dec – 13 Dec | $118 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 10 Dec – 17 Dec | $121 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 11 Dec – 10 Jan 2027 | $243 | Ryanair | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 2 stops | found 5 days ago | See prices for these dates |
| 12 Dec – 18 Dec | $151 | Air Serbia | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 17 Dec – 4 Jan 2027 | $370 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 2 stops | found 4 days ago | See prices for these dates |
| 19 Dec – 31 Dec | $326 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back 1 stop | found 2 days ago | See prices for these dates |
| 20 Dec – 8 Jan 2027 | $333 | Ryanair | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 21 Dec – 2 Jan 2027 | $361 | Ryanair | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 2 stops, back 1 stop | found 3 days ago | See prices for these dates |
| 22 Dec – 2 Jan 2027 | $392 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 23 Dec – 4 Jan 2027 | $421 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 26 Dec – 31 Dec | $280 | Ryanair | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 27 Dec – 1 Jan 2027 | $237 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 28 Dec – 14 Jan 2027 | $149 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 29 Dec – 4 Jan 2027 | $350 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back 2 stops | found 5 days ago | See prices for these dates |
| 31 Dec – 3 Jan 2027 | $220 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 1 Jan 2027 – 8 Jan 2027 | $248 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back 1 stop | found 7 days ago | See prices for these dates |
| 13 Jan 2027 – 23 Jan 2027 | $130 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 15 Jan 2027 – 30 Jan 2027 | $114 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 18 Jan 2027 – 22 Jan 2027 | $113 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 22 Jan 2027 – 28 Jan 2027 | $116 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 29 Jan 2027 – 31 Jan 2027 | $120 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 7 Feb 2027 – 10 Feb 2027 | $119 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 13 Feb 2027 – 27 Feb 2027 | $112 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 8 days ago | See prices for these dates |
| 15 Feb 2027 – 20 Feb 2027 | $129 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 20 Feb 2027 – 28 Feb 2027 | $117 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 11 Mar 2027 – 14 Mar 2027 | $178 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 25 Mar 2027 – 30 Mar 2027 | $279 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 26 Mar 2027 – 29 Mar 2027 | $297 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | out 1 stop, back nonstop | found 6 days ago | See prices for these dates |
| 3 Apr 2027 – 10 Apr 2027 | $123 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 12 Apr 2027 – 18 Apr 2027 | $135 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 16 Apr 2027 – 21 Apr 2027 | $131 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 4 Jun 2027 – 9 Jun 2027 | $117 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 26 Jul 2027 – 31 Jul 2027 | $285 | Aegean Airlines | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 1 Aug 2027 – 30 Aug 2027 | $370 | Eurowings | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | out 1 stop, back 2 stops | found 3 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $105.
Airlines on the cheapest dates: Ajet, Pegasus Airlines, Ryanair, Wizz Air Malta, Air Serbia, Aegean Airlines, Eurowings.
One-way
The cheapest one-way fare on each of 28 departure dates is usually $61 to $74.
Cheapest one-way found recently
$62
27 Jan 2027 · Ajet
Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW)
Leaves 3:55 p.m. · 3 h 15 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$62
27 Jan 2027 · Ajet
Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW)
Leaves 3:55 p.m. · 3 h 15 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$62 27 Jan 2027found 2 days agoOpen this trip
$59 23 Jan 2027found 3 days agoOpen this trip
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $49 to $60.
At $62, the cheapest one-way found recently is above that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 28 departure dates from 7 Dec to 1 Oct 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 27 Jan 2027, and none is cheaper.
Every date we hold
170 fares on 28 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 7 Dec | $61 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 4 days ago | Open this trip |
| 9 Dec | $62 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 7 days ago | Open this trip |
| 30 Dec | $74 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 5 days ago | Open this trip |
| 11 Jan 2027 | $61 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 8 days ago | See prices for these dates |
| 12 Jan 2027 | $60 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 5 days ago | Open this trip |
| 13 Jan 2027 | $60 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 4 days ago | Open this trip |
| 14 Jan 2027 | $60 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 4 days ago | Open this trip |
| 16 Jan 2027 | $64 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 4 days ago | Open this trip |
| 17 Jan 2027 | $66 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 23 Jan 2027 | $59 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 3 days ago | Open this trip |
| 27 Jan 2027 | $62 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 28 Jan 2027 | $62 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 29 Jan 2027 | $64 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 2 Feb 2027 | $62 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 20 Feb 2027 | $63 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 6 days ago | Open this trip |
| 21 Feb 2027 | $63 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 7 days ago | Open this trip |
| 23 Feb 2027 | $63 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
| 2 Mar 2027 | $61 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 4 days ago | Open this trip |
| 7 Mar 2027 | $121 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | 1 stop | found 2 days ago | Open this trip |
| 8 Mar 2027 | $111 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 3 days ago | Open this trip |
| 27 Mar 2027 | $107 | Air Serbia | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | 1 stop | found 7 days ago | Open this trip |
| 28 Mar 2027 | $124 | Wizz Air Malta | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
| 1 Apr 2027 | $74 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 5 days ago | Open this trip |
| 15 Apr 2027 | $63 | Ajet | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 3 days ago | Open this trip |
| 17 Jul 2027 | $224 | Air Serbia | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | 3 stops | found 3 days ago | Open this trip |
| 19 Jul 2027 | $150 | Ryanair | Cologne Bonn Airport (CGN) → Istanbul New Airport (IST) | 2 stops | found 5 days ago | Open this trip |
| 6 Sept 2027 | $59 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 6 days ago | Open this trip |
| 1 Oct 2027 | $66 | Pegasus Airlines | Cologne Bonn Airport (CGN) → Sabiha Gokcen International Airport (SAW) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
January 2027 is the cheapest month — from $59.
Airlines on the cheapest dates: Ajet, Pegasus Airlines, Wizz Air Malta, Air Serbia, Ryanair.
Premium cabin fares from Cologne to Istanbul
Return
We looked for premium economy, business and first-class return fares on this route, and hold none found in the last 7 days.
Today's prices for 1 Dec – 8 Dec in another cabin: Premium economy · Business · First
One-way
We looked for premium economy, business and first-class one-way fares on this route, and hold none found in the last 7 days.
Today's prices for 27 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Cologne to Istanbul?
Return
Fares 90 to 179 days before departure were typically 26% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $156 | $112 | +36% | 49 |
| 7–13 days | $153 | $111 | +33% | 49 |
| 14–29 days | $118 | $105 | +3% | 49 |
| 30–59 days | $118 | $101 | +3% | 49 |
| 60–89 days | $120 | $113 | +4% | 49 |
| 90–179 days | $115 | $104 | Cheapest seen | 49 |
| 180+ days | $145 | $112 | +26% | 49 |
One-way
Fares 90 to 179 days before departure were typically 14% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $68 | $63 | +16% | 7 |
| 30–59 days | $66 | $49 | +13% | 36 |
| 60–89 days | $60 | $59 | +2% | 49 |
| 90–179 days | $59 | $50 | Cheapest seen | 49 |
| 180+ days | $78 | $59 | +33% | 47 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Dusseldorf → Istanbul
34 km from Cologne
$112
$2 more than flying from Cologne
5 Dec – 17 Dec · DUS → SAW · out nonstop, back nonstop
found 2 days ago
Dortmund → Istanbul
73 km from Cologne
$133
$23 more than flying from Cologne
2 Dec – 9 Dec · DTM → SAW · out nonstop, back nonstop
found 2 days ago
Eindhoven → Istanbul
118 km from Cologne
$193
$83 more than flying from Cologne
6 Jan 2027 – 12 Jan 2027 · EIN → SAW · out 1 stop, back nonstop
found 2 days ago
Luxembourg → Istanbul
138 km from Cologne
$239
$129 more than flying from Cologne
1 Jan 2027 – 26 Jan 2027 · LUX → IST · out 1 stop, back 1 stop
found 2 days ago
Muenster → Istanbul
123 km from Cologne
$782
$672 more than flying from Cologne
22 Dec – 3 Jan 2027 · FMO → SAW · out 3 stops, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Dusseldorf → Istanbul
34 km from Cologne
$57
$5 less than flying from Cologne
20 Feb 2027 · DUS → SAW · nonstop
found 2 days ago
Dortmund → Istanbul
73 km from Cologne
$67
$5 more than flying from Cologne
26 Feb 2027 · DTM → SAW · nonstop
found 2 days ago
Eindhoven → Istanbul
118 km from Cologne
$89
$27 more than flying from Cologne
11 Jan 2027 · EIN → SAW · 1 stop
found 7 days ago
Luxembourg → Istanbul
138 km from Cologne
$114
$52 more than flying from Cologne
3 May 2027 · LUX → IST · 1 stop
found 2 days ago
Maastricht → Istanbul
90 km from Cologne
$197
$135 more than flying from Cologne
23 Nov · MST → SAW · 2 stops
found 5 days ago
Muenster → Istanbul
123 km from Cologne
$218
$156 more than flying from Cologne
27 Dec · FMO → SAW · 2 stops
found 3 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Dec – 8 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Cologne to Istanbul?
The cheapest return found recently is $110 with Ajet, 1 Dec to 8 Dec, found 2 days ago. The cheapest return we hold, of any age, is $105 with Ajet, 4 Dec to 6 Dec, found 4 days ago. The cheapest return fare on each of 59 departure dates is usually $115 to $240.
How much is a one-way flight from Cologne to Istanbul?
The cheapest one-way found recently is $62 with Ajet, 27 Jan 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $59 with Pegasus Airlines, 23 Jan 2027, found 3 days ago. The cheapest one-way fare on each of 28 departure dates is usually $61 to $74.
What is the cheapest month to fly from Cologne to Istanbul?
December 2026 is the cheapest month for a return, from $105, 4 Dec to 6 Dec, found 4 days ago. January 2027 is the cheapest month for a one-way, from $59, 23 Jan 2027, found 3 days ago.
How far ahead should I book a flight from Cologne to Istanbul?
In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 26% lower than 0 to 6 days before departure. One-way fares 90 to 179 days before departure were typically 14% lower than 0 to 6 days before departure.
Is there a direct flight from Cologne to Istanbul?
Yes, the cheapest nonstop return found recently is $110 with Ajet, 1 Dec to 8 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $62 with Ajet, 27 Jan 2027, found 2 days ago.
How long is the flight from Cologne to Istanbul?
The cheapest nonstop one-way found recently, with Ajet on 27 Jan 2027, takes 3 h 15 min from Cologne Bonn Airport (CGN) to Sabiha Gokcen International Airport (SAW).
Which airlines have the cheapest flights from Cologne to Istanbul?
Between 13 Nov and 1 Aug 2027, Ajet has the cheapest return on 29 of the 59 departure dates we hold, Pegasus Airlines on 18 and Ryanair on 4. Between 7 Dec and 1 Oct 2027, Ajet has the cheapest one-way on 15 of the 28 departure dates we hold, Pegasus Airlines on 8 and Wizz Air Malta on 2.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work
