Cheap flights from Istanbul to Sofia from $45 IST, SAW → SOF

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $75 to $121.

At $122, the cheapest return found recently is above that range.

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

Could nearby dates be cheaper?

We hold no other 1-night return fares leaving within 3 days of 26 Nov to compare.

Every date we hold

395 fares on 29 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $83.

Found recently, and the cheapest we hold

What have prices looked like?

Over 46 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $40 to $137.

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

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 22 Jan 2027, 19 Jan 2027 costs $43: $2 less than the cheapest found recently.

Pegasus Airlines · Sabiha Gokcen International Airport (SAW) → Sofia Airport (SOF) · nonstop · found 6 days ago

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Every date we hold

87 fares on 14 departure dates

Which month looks cheapest?

March 2027 is the cheapest month — from $40.

Return

Fares 14 to 29 days before departure were typically 14% 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 60 to 89 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (46 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 Istanbul to Sofia?

The cheapest return found recently is $122 with Pegasus Airlines, 26 Nov to 27 Nov, found 2 days ago. The cheapest return we hold, of any age, is $83 with Pegasus Airlines, 24 Jan 2027 to 29 Jan 2027, found 3 days ago. The cheapest return fare on each of 29 departure dates is usually $110 to $132.

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

The cheapest one-way found recently is $45 with Pegasus Airlines, 22 Jan 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $40 with Pegasus Airlines, 23 Mar 2027, found 7 days ago. The cheapest one-way fare on each of 14 departure dates is usually $46 to $65.

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

January 2027 is the cheapest month for a return, from $83, 24 Jan 2027 to 29 Jan 2027, found 3 days ago. March 2027 is the cheapest month for a one-way, from $40, 23 Mar 2027, found 7 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 14% lower than 0 to 6 days before departure. In 46 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 60 to 89 days before departure.

Is there a direct flight from Istanbul to Sofia?

Yes, the cheapest nonstop return found recently is $122 with Pegasus Airlines, 26 Nov to 27 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $45 with Pegasus Airlines, 22 Jan 2027, found 2 days ago.

How long is the flight from Istanbul to Sofia?

The cheapest nonstop one-way found recently, with Pegasus Airlines on 22 Jan 2027, takes 1 h 20 min from Sabiha Gokcen International Airport (SAW) to Sofia Airport (SOF).

Which airlines have the cheapest flights from Istanbul to Sofia?

Between 13 Nov and 30 Oct 2027, Pegasus Airlines has the cheapest return on 22 of the 29 departure dates we hold, Turkish Airlines on 5 and Tarom on 2. Between 19 Jan 2027 and 11 Oct 2027, Pegasus Airlines has the cheapest one-way on 12 of the 14 departure dates we hold, and Tarom on 2.