Cheap flights from Sofia to Istanbul from $43 SOF → IST, SAW

Found recently, and the cheapest we hold

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

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $76 to $108.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold 4-night return fares on 1 other departure date within 3 days of 9 Dec, and it is not cheaper.

Every date we hold

415 fares on 40 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $83.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $31 to $60.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold one-way fares on 1 other departure date within 3 days of 26 Nov, and it is not cheaper.

Every date we hold

200 fares on 32 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $43.

Return

Fares 14 to 29 days before departure were typically 18% lower than 0 to 6 days before departure.

From the cheapest return 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.

One-way

The cheapest fares were 7 to 13 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.

How much is a return flight from Sofia to Istanbul?

The cheapest return found recently is $83 with Pegasus Airlines, 9 Dec to 13 Dec, found 2 days ago. The cheapest return fare on each of 40 departure dates is usually $97 to $130.

How much is a one-way flight from Sofia to Istanbul?

The cheapest one-way found recently is $43 with Pegasus Airlines, 26 Nov, found 2 days ago. The cheapest one-way fare on each of 32 departure dates is usually $47 to $60.

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

December 2026 is the cheapest month for a return, from $83, 9 Dec to 13 Dec, found 2 days ago. November 2026 is the cheapest month for a one-way, from $43, 26 Nov, found 2 days ago.

Every date in December 2026

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 18% lower than 0 to 6 days before departure. One-way fares were cheapest 7 to 13 days before departure.

Is there a direct flight from Sofia to Istanbul?

Yes, the cheapest nonstop return found recently is $83 with Pegasus Airlines, 9 Dec to 13 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $43 with Pegasus Airlines, 26 Nov, found 2 days ago.

How long is the flight from Sofia to Istanbul?

The cheapest nonstop one-way found recently, with Pegasus Airlines on 26 Nov, takes 1 h 15 min from Sofia Airport (SOF) to Sabiha Gokcen International Airport (SAW).

Which airlines have the cheapest flights from Sofia to Istanbul?

Between 17 Nov and 29 Oct 2027, Pegasus Airlines has the cheapest return on 34 of the 40 departure dates we hold, Turkish Airlines on 3 and Tarom on 2. Between 17 Nov and 31 Oct 2027, Pegasus Airlines has the cheapest one-way on 28 of the 32 departure dates we hold, Wizz Air on 1 and Air Serbia on 1.