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Cheap Flights from Istanbul (IST) to Sofia (SOF)

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Flight deals from Istanbul Airport to Sofia Airport

Looking for a cheap last-minute deal or the best return flight from Istanbul Airport to Sofia Airport? If you want to travel next month, return fares start from £103. Find the lowest prices on one-way and return tickets right here.
Is this a good flight price? We’ll tell you.We compare today’s Istanbul Airport to Sofia Airport prices with what travellers usually pay, so you can see if now’s a good time to book, or if it’s worth waiting.
Sofia.£103 per passenger.Departing Tue, 7 Apr, returning Wed, 15 Apr.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Tue, 7 Apr, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Wed, 15 Apr, arriving in Istanbul.Price includes taxes and charges.From £103, select.
Sofia.£107 per passenger.Departing Wed, 6 May, returning Wed, 13 May.Return flight with Wizz Air and Ryanair.Outbound indirect flight with Wizz Air, departs from Istanbul on Wed, 6 May, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Wed, 13 May, arriving in Istanbul.Price includes taxes and charges.From £107, select.
Sofia.£116 per passenger.Departing Mon, 30 Mar, returning Mon, 13 Apr.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Mon, 30 Mar, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Mon, 13 Apr, arriving in Istanbul.Price includes taxes and charges.From £116, select.
Sofia.£118 per passenger.Departing Mon, 27 Apr, returning Wed, 6 May.Return flight with Wizz Air UK and Ryanair.Outbound indirect flight with Wizz Air UK, departs from Istanbul on Mon, 27 Apr, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Wed, 6 May, arriving in Istanbul.Price includes taxes and charges.From £118, select.
Sofia.£136 per passenger.Departing Thu, 24 Sep, returning Mon, 28 Sep.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Thu, 24 Sep, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Mon, 28 Sep, arriving in Istanbul.Price includes taxes and charges.From £136, select.
Sofia.£145 per passenger.Departing Wed, 6 May, returning Wed, 13 May.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Wed, 6 May, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Wed, 13 May, arriving in Istanbul.Price includes taxes and charges.From £145, select.
Sofia.£146 per passenger.Departing Thu, 18 Jun, returning Sun, 21 Jun.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Thu, 18 Jun, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Sun, 21 Jun, arriving in Istanbul.Price includes taxes and charges.From £146, select.
Sofia.£149 per passenger.Departing Fri, 7 Aug, returning Fri, 14 Aug.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Fri, 7 Aug, arriving in Sofia.Inbound indirect flight with SKY express, departs from Sofia on Fri, 14 Aug, arriving in Istanbul.Price includes taxes and charges.From £149, select.
Sofia.£150 per passenger.Departing Sun, 29 Mar, returning Tue, 31 Mar.Return flight with FLYONE and SunExpress.Outbound indirect flight with FLYONE, departs from Istanbul on Sun, 29 Mar, arriving in Sofia.Inbound indirect flight with SunExpress, departs from Sofia on Tue, 31 Mar, arriving in Istanbul.Price includes taxes and charges.From £150, select.
Sofia.£151 per passenger.Departing Wed, 27 May, returning Wed, 3 Jun.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Wed, 27 May, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Wed, 3 Jun, arriving in Istanbul.Price includes taxes and charges.From £151, select.
Sofia.£151 per passenger.Departing Tue, 21 Jul, returning Thu, 30 Jul.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Tue, 21 Jul, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Thu, 30 Jul, arriving in Istanbul.Price includes taxes and charges.From £151, select.
Sofia.£151 per passenger.Departing Mon, 27 Apr, returning Mon, 4 May.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Mon, 27 Apr, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Mon, 4 May, arriving in Istanbul.Price includes taxes and charges.From £151, select.
Sofia.£152 per passenger.Departing Mon, 22 Jun, returning Sat, 4 Jul.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Mon, 22 Jun, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Sat, 4 Jul, arriving in Istanbul.Price includes taxes and charges.From £152, select.
Sofia.£156 per passenger.Departing Mon, 10 Aug, returning Sun, 16 Aug.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Mon, 10 Aug, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Sun, 16 Aug, arriving in Istanbul.Price includes taxes and charges.From £156, select.
Sofia.£157 per passenger.Departing Wed, 29 Jul, returning Sun, 2 Aug.Return flight with Turkish Airlines.Outbound direct flight with Turkish Airlines departs from Istanbul on Wed, 29 Jul, arriving in Sofia.Inbound direct flight with Turkish Airlines departs from Sofia on Sun, 2 Aug, arriving in Istanbul.Price includes taxes and charges.From £157, select.
Sofia.£170 per passenger.Departing Fri, 18 Sep, returning Sun, 4 Oct.Return flight with SKY express.Outbound indirect flight with SKY express, departs from Istanbul on Fri, 18 Sep, arriving in Sofia.Inbound indirect flight with SKY express, departs from Sofia on Sun, 4 Oct, arriving in Istanbul.Price includes taxes and charges.From £170, 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 April.
Mar
from £150
Apr
from £103
May
from £107
Jun
from £146
Jul
from £151
Aug
from £149
Sep
from £136
Oct
from £170
Nov
from £206
Dec
from £196
Jan
from £197
Feb
from £198

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

4 miles from central Sofia
ClosestCheapest
from £103
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Istanbul to Sofia: Flight information

The things to know before you go.
Cheapest flight found£103
Cheapest month to flyApril
Average flight time1 hr, 17 mins
Most popular airlineTurkish Airlines
Average flights per week122

Finding cheap flights from Istanbul to Sofia: Frequently asked questions

The best price we found for a return flight from Istanbul to Sofia is £103. 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.
1 hour and 17 minutes is the average flight time from Istanbul to Sofia.
Turkish Airlines, IndiGo and Singapore Airlines fly direct from Istanbul to Sofia.
As of March 2026, there are 67 flights per week flying from Istanbul to Sofia.
The cheapest month to fly from Istanbul to Sofia is usually April.
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, 7 April 2026.
Yes – the average flight time is 1 hour and 17 minutes.
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.
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.
Currently, Turkish Airlines offers the cheapest flight tickets to Sofia.

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

  • The average duration of a direct flight from Istanbul Ataturk Airport to Sofia Airport is 1 hour 20 minutes.

  • The timezone in Sofia is UTC+2, which is one hour behind Istanbul.

  • Take your pick of 88 weekly Istanbul Ataturk Airport to Sofia Airport flights. The 07:15 departure with Turkish Airlines is the earliest you can take. Turkish Airlines operates the last service of the day at 20:30.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably catch your IST to SOF flight.

  • Flying during a peak month such as April? Major public holidays and other popular periods can mean longer queues at security. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • Getting to Sofia (and then exploring more of Bulgaria!) is a cinch with Turkish Airlines. This popular airline offers direct flights from Istanbul Ataturk Airport to Sofia Airport.

  • The airline most travellers fly with on this route is Turkish Airlines.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Istanbul Ataturk Airport to Sofia Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour your chosen city. Popular stopovers between IST and SOF include:

    • Eleftherios Venizelos International Airport

    • Izmir Adnan Menderes Airport

    • Budapest Ferenc Liszt International Airport

How to find the cheapest flights from Istanbul Ataturk Airport (IST) to Sofia Airport (SOF)

  • At the moment, £53 is the cheapest price we've seen for a one-way Istanbul Ataturk Airport to Sofia Airport flight. The best price for a return plane ticket is £103. Remember that fares can change due to demand at the time of booking.

  • Get cheap tickets from IST to SOF by booking at least six months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • The cheapest month for flights from Istanbul Ataturk Airport to Sofia Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have a flexible travel schedule.

  • Spend less time searching for cheap flights from IST to SOF by setting up a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Lock in the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Istanbul Ataturk Airport to Sofia Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Istanbul Ataturk Airport (IST)

  • Central Istanbul to Istanbul Ataturk Airport is approximately 30 miles. Depending on traffic, it'll take about 50 minutes to get there if you're catching a cab, ride-sharing or driving.

  • The trip when using public transport takes about 1 hour 45 minutes.

  • Have an early flight from Istanbul Ataturk Airport to Sofia Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these stays close to IST:

Arriving at Sofia Airport (SOF)

  • The last thing you need is a long journey to your hotel if you're getting in late on an Istanbul Ataturk Airport to Sofia Airport flight. Stay at one of these accommodation options near SOF instead:

  • Get on the fast track to adventure by picking up a Sofia Airport rental car. Grab a set of wheels from MEX, Surprice or NU Car Rentals and explore beyond Sofia's main sights.

  • To lock in the lowest price, reserve your ride from Sofia Airport about one week in advance.

Getting from Sofia Airport (SOF) to central Sofia

  • Sofia Airport to the centre of Sofia has a drive time of about 15 minutes. It's approximately 7 miles away.

  • Getting there by public transport typically takes 35 minutes.

When to fly to Sofia Airport (SOF)

  • August is the most popular month for flights from Istanbul Ataturk Airport to Sofia Airport. To skip the crowds, head to Sofia in April.

  • The warmest month in Sofia is August, with temperatures ranging between 14ºC (57ºF) and 30ºC (86ºF). Lock in your flights from Istanbul Ataturk Airport to Sofia Airport in this month if this is the type of weather you like.

  • For cooler conditions, look for a cheap ticket from IST to SOF in January. Temperatures average between -11ºC (12ºF) and 7ºC (45ºF) then.

Explore more of Bulgaria

  • Sofia has loads to offer, but there are so many other parts of Bulgaria just waiting to be explored. Around 80 miles south-east of Sofia, a trip to Plovdiv will keep you busy. Don't miss top attractions like Plovdiv Old Town, Plovdiv Roman Theatre and Archaelogical Complex Nebet Tepe.

  • Around 240 miles east of Sofia, Varna is another favourite stop in Bulgaria. Experience the best of this destination with a visit to Park Asparuhovo - Asparuhovo sea garden, Dormition of theotokos Cathedral and Sunset viewpoint (място за гледане на Залеза).

More travel options

Plan the rest of your trip from Istanbul to Sofia

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.