£73 Cheap Flights from Sofia (SOF) to Istanbul (IST)

View £73 flight on Sun, 14 Dec 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Istanbul Airport (IST)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £73 for one-way flights and £130 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Fri, 12 Sep - Fri, 19 Sep
SOF
Sofia
IST
Istanbul
£130 Return, just found
£130
Return
just found
Select Turkish Airlines flight, departing Fri, 12 Sep from Sofia to Istanbul, returning Fri, 19 Sep, priced at £130 just found
Aegean
Fri, 5 Sep - Sun, 7 Sep
SOF
Sofia
IST
Istanbul
£173 Return, found 4 days ago
£173
Return
found 4 days ago
Select Aegean flight, departing Fri, 5 Sep from Sofia to Istanbul, returning Sun, 7 Sep, priced at £173 found 4 days ago
LOT-Polish Airlines
Sat, 14 Feb - Sat, 21 Feb
SOF
Sofia
IST
Istanbul
£201 Return, found 2 days ago
£201
Return
found 2 days ago
Select LOT-Polish Airlines flight, departing Sat, 14 Feb from Sofia to Istanbul, returning Sat, 21 Feb, priced at £201 found 2 days ago
SKY express
Fri, 26 Sep - Fri, 3 Oct
SOF
Sofia
IST
Istanbul
£225 Return, just found
£225
Return
just found
Select SKY express flight, departing Fri, 26 Sep from Sofia to Istanbul, returning Fri, 3 Oct, priced at £225 just found
Air Serbia
Fri, 26 Sep - Fri, 3 Oct
SOF
Sofia
IST
Istanbul
£270 Return, just found
£270
Return
just found
Select Air Serbia flight, departing Fri, 26 Sep from Sofia to Istanbul, returning Fri, 3 Oct, priced at £270 just found
Tarom-Romanian Air Transport
Fri, 12 Sep - Fri, 19 Sep
SOF
Sofia
IST
Istanbul
£288 Return, just found
£288
Return
just found
Select Tarom-Romanian Air Transport flight, departing Fri, 12 Sep from Sofia to Istanbul, returning Fri, 19 Sep, priced at £288 just found

Find the cheapest month to fly from Sofia (SOF) to Istanbul (IST)

February is typically the cheapest month to fly

From £66 - £175 per traveller.

Graph displaying average flight prices per month

Flight from Sofia to Istanbul route information
Origin airport
Sofia
Destination airport
Sabiha Gokcen Intl.
Airlines serving
Aegean, Air Serbia, LOT-Polish Airlines, SKY express, Tarom-Romanian Air Transport, Turkish Airlines
Return price
£74
Distance
525 km
Average flight time
1 hour 31 mins

Compare flights from Sofia to Istanbul easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sofia to Istanbul. Operating between them 9 flights per day, 13 airlines cover the route. And EgyptAir, Turkish Airlines, Royal Jordanian, Singapore Airlines, IndiGo fly direct, getting you to Istanbul in just 1hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sofia to Istanbul.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Sofia (SOF) to Istanbul (IST)

The easiest way to view the best deals on flights from Sofia to Istanbul today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sofia to Istanbul start at just £130 and range up to £288.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sofia and Istanbul
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sofia to Istanbul flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sofia to Istanbul for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Sofia Intl. Airport to IST?
Pack your bags, because round-trip journeys between SOF and Istanbul Airport start from £130. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SOF to IST?
The majority of flights can be cancelled online, but whether or not you incur a fee varies between airlines. If you do need to cancel your trip, follow the easy instructions in the Customer Service Portal.
Can I fly from Sofia Intl. Airport to IST right now?
To see what travel restrictions and quarantine requirements are in place for different citizens flying from Sofia Intl. Airport to IST please visit our COVID 19 travel advisor portal link.
How do I find cheap flights from Sofia Intl. Airport to IST that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sofia Intl. Airport to IST flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sofia Intl. Airport to IST?
That movie you've been wanting to see will have to wait — the flight distance between Sofia Airport (SOF) and Istanbul Airport is only 470 kilometres. The captain will be instructing you to buckle up for landing before you know it.
Which airlines fly direct from Sofia Airport (SOF) to Istanbul Airport?
Unfortunately, there aren't any airlines that fly direct between SOF and Istanbul Airport. You'll need to book a flight with at least one stop.
Are Sofia Airport (SOF) to Istanbul Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from SOF to IST can be hit-or-miss. It is possible to score a bargain, but you could also miss out completely! If you'd rather start your travel planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines advertise their prices so far in advance. Our suggestion? Check back often as prices are updated regularly.

Explore a world of travel with Expedia

Istanbul Airports

Istanbul

*Available to Expedia members.