Cheap flights from Helsinki to Sofia from $127 HEL → SOF
Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF)
The cheapest return found recently is $315 with Ryanair, 29 Nov – 1 Dec, found 2 days ago. The cheapest one-way found recently is $127 with airBaltic, 24 May 2027, found 3 days ago.
- Cheapest one-way found recently
- $127, found 3 days ago
- Cheapest return found recently
- $315, 29 Nov to 1 Dec
- Usual return price
- $311 to $382
- Cheapest month to fly
- February 2027, return fares from $306 found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually $311 to $382.
Cheapest return found recently
$315
29 Nov – 1 Dec · Ryanair
Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF)
Leaves 12:35 p.m. · Return leaves 8:20 p.m. · 47 h 15 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$315 29 Nov – 1 Decfound 2 days agoSee prices for these dates
$306 6 Feb 2027 – 27 Feb 2027found 3 days agoSee prices for these dates
What have prices looked like?
Over 48 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $196 to $475.
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 3 departure dates from 29 Nov to 6 Feb 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 2-night return fares leaving within 3 days of 29 Nov to compare.
Every date we hold
21 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Nov – 1 Dec | $315 | Ryanair | Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 17 Dec – 3 Jan 2027 | $449 | Finnair | Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF) | out 2 stops, back 3 stops | found 4 days ago | See prices for these dates |
| 6 Feb 2027 – 27 Feb 2027 | $306 | Finnair | Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
Which month looks cheapest?
February 2027 is the cheapest month — from $306.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$127
24 May 2027 · airBaltic
Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF)
Leaves 9:20 p.m. · 16 h 55 min trip
1 stop
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$127 24 May 2027found 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 43 days, 26 Sept to 11 Nov, the cheapest one-way we saw each day was $56 to $153.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 24 May 2027 to compare.
Every date we hold
2 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Dec | $150 | Pegasus Airlines | Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF) | stops unknown | found 3 days ago | Open this trip |
| 24 May 2027 | $127 | airBaltic | Helsinki-Vantaa Airport (HEL) → Sofia Airport (SOF) | 1 stop | found 3 days ago | Open this trip |
Which month looks cheapest?
May 2027 is the cheapest month — from $127.
Airlines on the cheapest dates: Pegasus Airlines, airBaltic.
Premium cabin fares from Helsinki to Sofia
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 29 Nov – 1 Dec in another cabin: Premium economy · Business · First
Today's prices for 24 May 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Helsinki to Sofia?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (48 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 |
|---|---|---|---|---|
| 14–29 days | $218 | $218 | Cheapest seen | 12 |
| 30–59 days | $271 | $196 | +24% | 22 |
| 60–89 days | $385 | $219 | +77% | 27 |
| 90–179 days | $231 | $231 | +6% | 10 |
| 180+ days | $328 | $328 | +51% | 8 |
One-way
Not enough history yet: in 43 days of one-way prices, 26 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Tallinn → Sofia
82 km from Helsinki
$141
$174 less than flying from Helsinki
27 Aug 2027 – 12 Sept 2027 · TLL → SOF · out 1 stop, 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
Tallinn → Sofia
82 km from Helsinki
$57
$70 less than flying from Helsinki
30 Jan 2027 · TLL → SOF · 1 stop
found 2 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 29 Nov – 1 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 Helsinki to Sofia?
The cheapest return found recently is $315 with Ryanair, 29 Nov to 1 Dec, found 2 days ago. The cheapest return we hold, of any age, is $306 with Finnair, 6 Feb 2027 to 27 Feb 2027, found 3 days ago. The cheapest return fare on each of 3 departure dates is usually $311 to $382.
How much is a one-way flight from Helsinki to Sofia?
The cheapest one-way found recently is $127 with airBaltic, 24 May 2027, found 3 days ago.
What is the cheapest month to fly from Helsinki to Sofia?
February 2027 is the cheapest month for a return, from $306, 6 Feb 2027 to 27 Feb 2027, found 3 days ago. May 2027 is the cheapest month for a one-way, from $127, 24 May 2027, found 3 days ago.
How far ahead should I book a flight from Helsinki to Sofia?
In 48 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.
How long is the flight from Helsinki to Sofia?
The cheapest one-way found recently, with airBaltic on 24 May 2027, takes 16 h 55 min with 1 stop.
Which airlines have the cheapest flights from Helsinki to Sofia?
Between 29 Nov and 6 Feb 2027, Finnair has the cheapest return on 2 of the 3 departure dates we hold, and Ryanair 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