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Cheap flights from Sofia to Basel from $103 SOF → BSL

Sofia Airport (SOF) → EuroAirport Swiss (BSL)

The cheapest return found recently is $103 with Ryanair, 31 Dec – 7 Jan 2027, found 2 days ago.

Cheapest return found recently
$103, 31 Dec to 7 Jan 2027
Usual return price
$140 to $187
Cheapest month to fly
December 2026, return fares from $96 found in the last 7 days

Return

The cheapest return fare on each of 9 departure dates is usually $140 to $187.

Cheapest return found recently

$103

31 Dec – 7 Jan 2027 · Ryanair

Sofia Airport (SOF) → EuroAirport Swiss (BSL)

Leaves 9:30 p.m. · Return leaves 3:10 p.m. · 13 h 25 min of travel, both ways together

out 1 stop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

$140

25 Dec – 2 Jan 2027 · Wizz Air

Sofia Airport (SOF) → EuroAirport Swiss (BSL)

Leaves 1:05 p.m. · Return leaves 7:50 a.m. · 4 h 45 min of travel, both ways together

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $103 31 Dec – 7 Jan 2027found 2 days agoSee prices for these dates

Cheapest we hold, of any age $96 8 Dec – 10 Decfound 4 days agoSee prices for these dates

What have prices looked like?

Over 45 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $69 to $216.

$103, the cheapest return found recently, sits here in that range of $69 to $216.

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 9 departure dates from 8 Dec to 2 Jan 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 7-night return fares leaving within 3 days of 31 Dec to compare.

Every date we hold

12 fares on 9 departure dates

8 Dec – 10 Dec: $96, found 4 days ago19 Dec – 24 Dec: $206, found 3 days ago25 Dec – 2 Jan 2027: $140, found 2 days ago27 Dec – 4 Jan 2027: $187, found 6 days ago29 Dec – 1 Jan 2027: $224, found 6 days ago30 Dec – 10 Jan 2027: $161, found 2 days ago31 Dec – 7 Jan 2027: $103, found 2 days ago1 Jan 2027 – 10 Jan 2027: $173, found 2 days ago2 Jan 2027 – 10 Jan 2027: $170, found 2 days agoDecJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
8 Dec – 10 Dec$96Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Dec – 24 Dec$206Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out nonstop, back 1 stopfound 3 days agoSee prices for these dates
25 Dec – 2 Jan 2027$140Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out nonstop, back nonstopfound 2 days agoSee prices for these dates
27 Dec – 4 Jan 2027$187Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
29 Dec – 1 Jan 2027$224Pegasus AirlinesSofia Airport (SOF) → EuroAirport Swiss (BSL)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
30 Dec – 10 Jan 2027$161Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out 2 stops, back nonstopfound 2 days agoSee prices for these dates
31 Dec – 7 Jan 2027$103RyanairSofia Airport (SOF) → EuroAirport Swiss (BSL)out 1 stop, back nonstopfound 2 days agoSee prices for these dates
1 Jan 2027 – 10 Jan 2027$173Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out nonstop, back nonstopfound 2 days agoSee prices for these dates
2 Jan 2027 – 10 Jan 2027$170Wizz AirSofia Airport (SOF) → EuroAirport Swiss (BSL)out 1 stop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $96.

December 2026From $96Cheapest seen7 departure dates8 Dec – 10 Dec · found 4 days agoSee prices for these datesEvery date in December 2026
January 2027From $1702 departure dates2 Jan 2027 – 10 Jan 2027 · found 2 days agoSee prices for these dates

Airlines on the cheapest dates: Wizz Air, Pegasus Airlines, Ryanair.

Premium cabin fares from Sofia to Basel

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 31 Dec – 7 Jan 2027 in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Sofia to Basel?

Return

Fares 90 to 179 days before departure were typically 22% lower than 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (45 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
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
14–29 days$110$96+28%22
30–59 days$163$103+90%34
60–89 days$110$69+28%34
90–179 days$86$86Cheapest seen8
180+ days$147$147+71%8

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

Return

Nis → Basel

135 km from Sofia

$94

$9 less than flying from Sofia

3 Dec – 10 Dec · INI → MLH · out nonstop, back nonstop

found 3 days ago

See this route

Sofia → Zurich

75 km from Basel

$208

$105 more than flying to Basel

6 Oct 2027 – 14 Oct 2027 · SOF → ZRH · out nonstop, back nonstop

found 4 days ago

Check today's price

Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.

One-way

Nis → Basel

135 km from Sofia

$47

19 Nov · INI → MLH · nonstop

found 2 days ago

See this route

Sofia → Zurich

75 km from Basel

$84

18 Mar 2027 · SOF → ZRH · 1 stop

found 7 days ago

Check today's price

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 31 Dec – 7 Jan 2027. 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 Sofia to Basel?

The cheapest return found recently is $103 with Ryanair, 31 Dec to 7 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is $96 with Wizz Air, 8 Dec to 10 Dec, found 4 days ago. The cheapest return fare on each of 9 departure dates is usually $140 to $187.

What is the cheapest month to fly from Sofia to Basel?

December 2026 is the cheapest month for a return, from $96, 8 Dec to 10 Dec, found 4 days ago.

Every date in December 2026

How far ahead should I book a flight from Sofia to Basel?

In 45 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 22% lower than 14 to 29 days before departure.

Is there a direct flight from Sofia to Basel?

Yes, the cheapest nonstop return found recently is $140 with Wizz Air, 25 Dec to 2 Jan 2027, found 2 days ago.

Which airlines have the cheapest flights from Sofia to Basel?

Between 8 Dec and 2 Jan 2027, Wizz Air has the cheapest return on 7 of the 9 departure dates we hold, Pegasus Airlines on 1 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