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Istanbul to Sofia in December 2026 IST, SAW → SOF

Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)

For departures in December 2026, the cheapest return found recently is $121 with Pegasus Airlines, 25 Dec – 17 Jan 2027, found today.

Return

In December 2026, the cheapest return fare on each of 7 departure dates is usually $123 to $148. Across all 25 departure dates we hold on this route, it is usually $122 to $157. Of the 4 months with enough return fares to compare, 1 is usually cheaper than December 2026.

Cheapest return found recently

$121

25 Dec – 17 Jan 2027 · Pegasus Airlines

Sabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)

out nonstop, back nonstop

found today

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
25 Dec – 17 Jan 2027$121Pegasus Airlinesout nonstop, back nonstopfound todaySee prices for these dates
19 Dec – 11 Jan 2027$122Pegasus Airlinesout nonstop, back nonstopfound 4 days agoSee prices for these dates
1 Dec – 12 Dec$123Turkish Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates
2 Dec – 5 Dec$123Pegasus Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates
23 Dec – 6 Jan 2027$126Pegasus Airlinesout nonstop, back nonstopfound yesterdaySee prices for these dates

Every date we hold

7 departure dates

1 Dec – 12 Dec: $123, found 3 days ago2 Dec – 5 Dec: $123, found 6 days ago6 Dec – 19 Dec: $169, found today11 Dec – 19 Dec: $170, found 3 days ago19 Dec – 11 Jan 2027: $122, found 4 days ago23 Dec – 6 Jan 2027: $126, found yesterday25 Dec – 17 Jan 2027: $121, found todayDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 12 Dec$123Turkish AirlinesIstanbul New Airport (IST) → Sofia Airport (SOF)out nonstop, back nonstopfound 3 days agoSee prices for these dates
2 Dec – 5 Dec$123Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
6 Dec – 19 Dec$169Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound todaySee prices for these dates
11 Dec – 19 Dec$170Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back 1 stopfound 3 days agoSee prices for these dates
19 Dec – 11 Jan 2027$122Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 4 days agoSee prices for these dates
23 Dec – 6 Jan 2027$126Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound yesterdaySee prices for these dates
25 Dec – 17 Jan 2027$121Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound todaySee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $114.

October 2026From $1573 departure dates30 Oct – 5 Nov · found 2 days agoSee prices for these dates
November 2026From $1167 departure dates7 Nov – 2 Dec · found 4 days agoSee prices for these datesEvery date in November 2026
December 2026From $1217 departure dates25 Dec – 17 Jan 2027 · found todaySee prices for these dates
January 2027From $114Cheapest seen2 departure dates12 Jan 2027 – 15 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $1382 departure dates9 Feb 2027 – 15 Feb 2027 · found yesterdaySee prices for these dates
March 2027From $1454 departure dates9 Mar 2027 – 11 Mar 2027 · found 3 days agoSee prices for these dates

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