Cheap Flights from Istanbul to Sofia

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Flight deals from Istanbul to Sofia

Looking for a cheap last-minute deal or the best round-trip flight from Istanbul Airport to Sofia Airport? If you want to travel next month, round-trip fares start from $152. Find the lowest prices on one-way and round-trip tickets right here.

Sofia.$138 per passenger.Departing Tue, Nov 17, returning Sat, Nov 28.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Nov 17, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sat, Nov 28, arriving in Istanbul.Price includes taxes and charges.From $138, select.

Sofia.$141 per passenger.Departing Thu, Dec 31, returning Sat, Jan 2.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Thu, Dec 31, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sat, Jan 2, arriving in Istanbul.Price includes taxes and charges.From $141, select.

Sofia.$141 per passenger.Departing Fri, May 14, returning Fri, May 28.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Fri, May 14, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Fri, May 28, arriving in Istanbul.Price includes taxes and charges.From $141, select.

Sofia.$141 per passenger.Departing Tue, Dec 1, returning Tue, Dec 8.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Dec 1, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Tue, Dec 8, arriving in Istanbul.Price includes taxes and charges.From $141, select.

Sofia.$141 per passenger.Departing Sat, Feb 6, returning Sun, Feb 14.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sat, Feb 6, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sun, Feb 14, arriving in Istanbul.Price includes taxes and charges.From $141, select.

Sofia.$141 per passenger.Departing Sat, Jan 23, returning Tue, Jan 26.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sat, Jan 23, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Tue, Jan 26, arriving in Istanbul.Price includes taxes and charges.From $141, select.

Sofia.$142 per passenger.Departing Tue, Jan 26, returning Tue, Feb 2.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Jan 26, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Tue, Feb 2, arriving in Istanbul.Price includes taxes and charges.From $142, select.

Sofia.$142 per passenger.Departing Sun, Apr 25, returning Mon, May 3.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sun, Apr 25, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Mon, May 3, arriving in Istanbul.Price includes taxes and charges.From $142, select.

Sofia.$142 per passenger.Departing Fri, Mar 5, returning Sun, Mar 14.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Fri, Mar 5, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sun, Mar 14, arriving in Istanbul.Price includes taxes and charges.From $142, select.

Sofia.$143 per passenger.Departing Sat, May 1, returning Sat, Jun 19.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sat, May 1, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sat, Jun 19, arriving in Istanbul.Price includes taxes and charges.From $143, select.

Sofia.$143 per passenger.Departing Wed, Feb 24, returning Sat, Mar 13.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Wed, Feb 24, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sat, Mar 13, arriving in Istanbul.Price includes taxes and charges.From $143, select.

Sofia.$143 per passenger.Departing Tue, Apr 20, returning Thu, Apr 22.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Tue, Apr 20, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Thu, Apr 22, arriving in Istanbul.Price includes taxes and charges.From $143, select.

Sofia.$145 per passenger.Departing Fri, Sep 25, returning Tue, Sep 29.Round-trip flight with Turkish Airlines and Ryanair.Outbound indirect flight with Turkish Airlines, departing from Istanbul on Fri, Sep 25, arriving in Sofia.Inbound indirect flight with Ryanair, departing from Sofia on Tue, Sep 29, arriving in Istanbul.Price includes taxes and charges.From $145, select.

Sofia.$148 per passenger.Departing Sun, Nov 1, returning Sat, Jan 2.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sun, Nov 1, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Sat, Jan 2, arriving in Istanbul.Price includes taxes and charges.From $148, select.

Sofia.$152 per passenger.Departing Fri, Oct 16, returning Wed, Oct 21.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Fri, Oct 16, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Wed, Oct 21, arriving in Istanbul.Price includes taxes and charges.From $152, select.

Sofia.$152 per passenger.Departing Sun, Sep 20, returning Mon, Nov 2.Round-trip flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departing from Istanbul on Sun, Sep 20, arriving in Sofia.Inbound direct flight with Turkish Airlines departing from Sofia on Mon, Nov 2, arriving in Istanbul.Price includes taxes and charges.From $152, select.

Find the cheapest month to fly from Istanbul to Sofia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Istanbul to Sofia flights are currently cheapest in November.

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Direct flights from Istanbul to Sofia

Istanbul to Sofia: Alternative routes

Compare routes from Istanbul to Sofia below. You may find an airport to fly into that's cheaper, faster, or easier than Sofia.

Sofia

7km from central Sofia

ClosestCheapest

from $138

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Istanbul to Sofia: Flight information

The things to know before you go.

Cheapest flight found	$138
Cheapest month to fly	November
Average flight time	1 hr, 19 mins
Most popular airline	Turkish Airlines
Average flights per week	58

Finding cheap flights from Istanbul to Sofia: Frequently asked questions

How much are round-trip flights from Istanbul to Sofia?

The best price we found for a round-trip flight from Istanbul to Sofia is $138. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Istanbul to Sofia?

1 hour and 19 minutes is the average flight time from Istanbul to Sofia.

Which airlines fly direct from Istanbul to Sofia?

Turkish Airlines, IndiGo and Royal Jordanian fly direct from Istanbul to Sofia.

How many flights are there a week from Istanbul to Sofia?

There are 58 flights per week flying from Istanbul to Sofia, as of September 2026.

When is the cheapest time to fly from Istanbul to Sofia?

The cheapest month to fly from Istanbul to Sofia is usually November.

Which upcoming date is cheapest to fly from Istanbul Airport to Sofia Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Istanbul Airport to Sofia Airport on Tuesday, November 17, 2026.

Can I get a direct flight from Istanbul Airport to Sofia Airport?

Yes – the average flight time is 1 hour and 19 minutes.

How can I find the best flight deal to Sofia?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sofia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Sofia?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Sofia is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Istanbul Airport to Sofia?

Currently, Turkish Airlines offers the cheapest flight tickets to Sofia.

Traveling from Istanbul Airport (IST) to Sofia Airport (SOF): what you need to know

Around 1 hour 15 minutes is how long you'll be traveling on a direct flight from Istanbul Airport to Sofia Airport.
The timezone in Sofia is UTC+2, which is one hour behind Istanbul.
Flights from IST to SOF start from 07:20 — the first with Turkish Airlines. The last service of the day is at 20:30 with Turkish Airlines. In total, there are 22 weekly Istanbul Airport to Sofia Airport flights.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to board your IST to SOF flight.
During popular months such as August, you'll want to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a high season in general.
Turkish Airlines is your gateway to exploring Sofia (and perhaps some other exciting corners of Bulgaria!). Browse the direct flights from Istanbul Airport to Sofia Airport offered by this popular carrier.
Turkish Airlines is the most frequently booked airline on this route.
If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Istanbul Airport to Sofia Airport. Here are the top stopovers between IST and SOF:
- Athens International Airport
- Budapest Airport
- Izmir Airport

Handy information about Istanbul Airport (IST)

Central Istanbul to Istanbul Airport is around 40 kilometers. Depending on traffic, it'll take about 45 minutes to get there if you're ride-sharing, catching a cab or driving.
Taking public transport? Expect a journey time of around 1 hour 10 minutes.
Get your break off to a leisurely start by staying near IST. Whether you're taking an early flight from Istanbul Airport to Sofia Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Sofia Airport (SOF)

Reserve a hotel near SOF if you're on a late Istanbul Airport to Sofia Airport flight. Settle into one of these options and avoid the hassle of a long transfer:
Pick up a Sofia Airport rental car and explore Sofia and beyond with your own set of wheels. MEX, Surprice and NU Car Rentals are popular outlets to choose from here.
Lock in the lowest price by booking your ride from Sofia Airport about one week before your trip.

Getting from Sofia Airport (SOF) to central Sofia

Sofia Airport to central Sofia has a drive time of about 25 minutes. It's approximately 10 kilometers away.
If you're using public transport, expect a journey time of roughly 30 minutes.

When to fly to Sofia Airport (SOF)

August is the busiest month for flights from Istanbul Airport to Sofia Airport. For a quieter experience, head to Sofia in March.
Book your flight from Istanbul Airport to Sofia Airport for August if you'd like to go to Sofia during its warmest month. Expect temperatures of between 13ºC (55ºF) and 32ºC (90ºF).
For cooler conditions, look for a cheap ticket from IST to SOF in January. Average temperatures are between -11ºC (12ºF) and 7ºC (45ºF) then.

Explore more of Bulgaria

Sofia is easy to fall in love with, but there are so many other parts of Bulgaria just waiting to be discovered. About 129 kilometers south-east of Sofia, a visit to Plovdiv will keep you on the go. Don't miss top attractions like Plovdiv Roman Theatre, Municipal Institute "Ancient Plovdiv" and Museum Center for Contemporary History.
If you're ready to explore another major destination in Bulgaria, consider Varna, roughly 386 kilometers east of Sofia. Sahara beach, Museum of Natural History and Sea Garden are highlights.