Cheap flights from Kos to Athens from $57 KGS → ATH
Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH)
The cheapest return found recently is $133 with Sky Express Greece, 14 Dec – 17 Dec, found 4 days ago. The cheapest one-way found recently is $57 with Sky Express Greece, 17 Mar 2027, found 3 days ago.
- Cheapest one-way found recently
- $57, Sky Express Greece, found 3 days ago
- Cheapest return found recently
- $133, 14 Dec to 17 Dec
- Cheapest month to fly
- November 2026, one-way fares from $52 found in the last 7 days
- Airlines with nonstop flights
- Sky Express Greece, Aegean Airlines
- Shortest nonstop flight found
- 1 h
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$133
14 Dec – 17 Dec · Sky Express Greece
Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH)
Leaves 9:45 p.m. · Return leaves 6:50 a.m. · 1 h 55 min of travel, both ways together
out nonstop, back nonstop
found 4 days ago
Cheapest nonstop return
$133
14 Dec – 17 Dec · Sky Express Greece
Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH)
Leaves 9:45 p.m. · Return leaves 6:50 a.m. · 1 h 55 min of travel, both ways together
out nonstop, back nonstop
found 4 days ago
Found recently, and the cheapest we hold
$133 14 Dec – 17 Decfound 4 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 37 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $109 to $157.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 14 Dec to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Dec – 17 Dec | $133 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
Airlines on the cheapest dates: Sky Express Greece.
One-way
The cheapest one-way fare on each of 6 departure dates is usually $61 to $77.
Cheapest one-way found recently
$57
17 Mar 2027 · Sky Express Greece
Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH)
Leaves 12:00 p.m. · 1 h trip
nonstop
found 3 days ago
Cheapest nonstop one-way
$57
17 Mar 2027 · Sky Express Greece
Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH)
Leaves 12:00 p.m. · 1 h trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$57 17 Mar 2027found 3 days agoOpen this trip
$52 20 Novfound 4 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 $39 to $58.
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 6 departure dates from 13 Nov to 17 Mar 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?
We hold no other one-way fares leaving within 3 days of 17 Mar 2027 to compare.
Every date we hold
7 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov | $72 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 4 days ago | Open this trip |
| 14 Nov | $79 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 4 days ago | Open this trip |
| 15 Nov | $72 | Aegean Airlines | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 5 days ago | Open this trip |
| 18 Nov | $80 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 5 days ago | Open this trip |
| 20 Nov | $52 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 4 days ago | Open this trip |
| 17 Mar 2027 | $57 | Sky Express Greece | Kos Airport (KGS) → Eleftherios Venizelos International Airport (ATH) | nonstop | found 3 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $52.
Airlines on the cheapest dates: Sky Express Greece, Aegean Airlines.
Premium cabin fares from Kos to Athens
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 14 Dec – 17 Dec in another cabin: Premium economy · Business · First
Today's prices for 17 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Kos to Athens?
Return
Fares 90 to 179 days before departure were typically 24% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (37 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 | $144 | $130 | +32% | 30 |
| 7–13 days | $144 | $135 | +32% | 23 |
| 14–29 days | $135 | $129 | +24% | 18 |
| 30–59 days | $122 | $122 | +12% | 11 |
| 60–89 days | $182 | $182 | +67% | 8 |
| 90–179 days | $109 | $109 | Cheapest seen | 9 |
| 180+ days | $138 | $126 | +27% | 20 |
One-way
Fares 180 or more days before departure were typically 41% 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 | $76 | $46 | +69% | 48 |
| 7–13 days | $78 | $41 | +73% | 49 |
| 14–29 days | $69 | $41 | +53% | 40 |
| 30–59 days | $61 | $52 | +36% | 29 |
| 60–89 days | $77 | $50 | +71% | 13 |
| 90–179 days | $49 | $47 | +9% | 16 |
| 180+ days | $45 | $39 | Cheapest seen | 36 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Rhodes → Athens
108 km from Kos
$142
$9 more than flying from Kos
27 Nov – 29 Nov · RHO → ATH · out nonstop, back nonstop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Rhodes → Athens
108 km from Kos
$58
$1 more than flying from Kos
16 Nov · RHO → ATH · nonstop
found 2 days ago
Samos → Athens
101 km from Kos
$71
$14 more than flying from Kos
17 Nov · SMI → ATH · nonstop
found 6 days ago
Astypalaia Island → Athens
70 km from Kos
$78
$21 more than flying from Kos
5 Jan 2027 · JTY → ATH · nonstop
found 6 days ago
Bodrum → Athens
71 km from Kos
$150
$93 more than flying from Kos
16 Nov · BJV → ATH · stops unknown
found 4 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 14 Dec – 17 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 Kos to Athens?
The cheapest return found recently is $133 with Sky Express Greece, 14 Dec to 17 Dec, found 4 days ago.
How much is a one-way flight from Kos to Athens?
The cheapest one-way found recently is $57 with Sky Express Greece, 17 Mar 2027, found 3 days ago. The cheapest one-way we hold, of any age, is $52 with Sky Express Greece, 20 Nov, found 4 days ago. The cheapest one-way fare on each of 6 departure dates is usually $61 to $77.
What is the cheapest month to fly from Kos to Athens?
November 2026 is the cheapest month for a one-way, from $52, 20 Nov, found 4 days ago.
How far ahead should I book a flight from Kos to Athens?
In 37 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 24% lower than 0 to 6 days before departure. In 49 days of prices between 24 Sept and 11 Nov, one-way fares 180 or more days before departure were typically 41% lower than 0 to 6 days before departure.
Is there a direct flight from Kos to Athens?
Yes, the cheapest nonstop return found recently is $133 with Sky Express Greece, 14 Dec to 17 Dec, found 4 days ago. The cheapest nonstop one-way found recently is $57 with Sky Express Greece, 17 Mar 2027, found 3 days ago.
How long is the flight from Kos to Athens?
The cheapest nonstop one-way found recently, with Sky Express Greece on 17 Mar 2027, takes 1 h from Kos Airport (KGS) to Eleftherios Venizelos International Airport (ATH).
Which airlines have the cheapest flights from Kos to Athens?
Between 13 Nov and 17 Mar 2027, Sky Express Greece has the cheapest one-way on 5 of the 6 departure dates we hold, and Aegean Airlines on 1.
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