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Istanbul to Sofia flights in December 2026 from $94 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 $94 with Pegasus Airlines, 25 Dec – 17 Jan 2027, found 3 days ago.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $93 to $123. Across all 29 departure dates we hold on this route, it is usually $110 to $132. Of the 5 months with enough return fares to compare, 1 is usually cheaper than December 2026.

Cheapest return found recently

$94

25 Dec – 17 Jan 2027 · Pegasus Airlines

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

out nonstop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$90

23 Dec – 6 Jan 2027 · Pegasus Airlines

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

out nonstop, back nonstop

found 6 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
23 Dec – 6 Jan 2027$90Pegasus Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Dec – 18 Dec$92Pegasus Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates
12 Dec – 18 Dec$93Pegasus Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates
25 Dec – 17 Jan 2027$94Pegasus Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates
9 Dec – 21 Dec$116Turkish Airlinesout nonstop, back nonstopfound 6 days agoSee prices for these dates

Every date we hold

8 departure dates

9 Dec – 21 Dec: $116, found 6 days ago10 Dec – 20 Dec: $138, found 6 days ago11 Dec – 18 Dec: $92, found 6 days ago12 Dec – 18 Dec: $93, found 6 days ago14 Dec – 28 Dec: $188, found 8 days ago16 Dec – 21 Dec: $118, found 5 days ago23 Dec – 6 Jan 2027: $90, found 6 days ago25 Dec – 17 Jan 2027: $94, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
9 Dec – 21 Dec$116Turkish AirlinesIstanbul New Airport (IST) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
10 Dec – 20 Dec$138Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Dec – 18 Dec$92Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
12 Dec – 18 Dec$93Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
14 Dec – 28 Dec$188Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back 1 stopfound 8 days agoSee prices for these dates
16 Dec – 21 Dec$118Turkish AirlinesIstanbul New Airport (IST) → Sofia Airport (SOF)out nonstop, back nonstopfound 5 days agoSee prices for these dates
23 Dec – 6 Jan 2027$90Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 6 days agoSee prices for these dates
25 Dec – 17 Jan 2027$94Pegasus AirlinesSabiha Gokcen International Airport (SAW) → Sofia Airport (SOF)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $83.

November 2026From $1164 departure dates28 Nov – 16 Dec · found 3 days agoSee prices for these dates
December 2026From $908 departure dates23 Dec – 6 Jan 2027 · found 6 days agoSee prices for these dates
January 2027From $83Cheapest seen4 departure dates24 Jan 2027 – 29 Jan 2027 · found 3 days agoSee prices for these dates
February 2027From $1235 departure dates1 Feb 2027 – 7 Feb 2027 · found 5 days agoSee prices for these dates
March 2027From $1103 departure dates14 Mar 2027 – 17 Mar 2027 · found 6 days agoSee prices for these dates
April 2027From $1691 departure date3 Apr 2027 – 4 Apr 2027 · found 5 days agoSee prices for these dates
May 2027From $1222 departure dates12 May 2027 – 17 May 2027 · found 3 days agoSee prices for these dates
June 2027From $1231 departure date1 Jun 2027 – 8 Jun 2027 · found 2 days agoSee prices for these dates
October 2027From $1501 departure date30 Oct 2027 – 1 Nov 2027 · found 7 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