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Cheap flights from Istanbul Airport to Sofia from £68

IST — SOF
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Istanbul to Sofia

Enter your travel dates to find the best prices.

Cheapest flights from Istanbul to Sofia

Mon 23/1108:30 -
Nonstop1h 20m
Mon 30/1121:45 -
Nonstop1h 30m
Deal found 8/9£106
Thu 5/1114:55 -
Nonstop1h 15m
Sun 8/1111:55 -
Nonstop1h 25m
Deal found 10/9£110
Fri 23/1010:30 -
Nonstop1h 15m
Sun 25/1016:00 -
Nonstop1h 30m
Deal found 9/9£115
Fri 30/1010:45 -
Nonstop1h 20m
Mon 2/1116:00 -
Nonstop1h 30m
Deal found 10/9£117
Sun 25/1010:45 -
Nonstop1h 20m
Sun 1/1116:00 -
Nonstop1h 30m
Deal found 10/9£120
Sat 24/1007:30 -
Nonstop1h 15m
Sat 31/1016:00 -
Nonstop1h 30m
Deal found 9/9£123
Fri 27/1116:40 -
1 stop23h 50m
Mon 30/1105:00 -
1 stop11h 00m
Deal found 9/9£124
Sat 28/1105:25 -
1 stop11h 05m
Tue 12/116:00 -
1 stop22h 55m
Deal found 6/9£125
Fri 30/1005:25 -
1 stop11h 05m
Mon 2/1116:00 -
1 stop24h 00m
Deal found 10/9£128
Sat 17/1016:40 -
1 stop22h 50m
Thu 14/116:00 -
1 stop11h 40m
Deal found 9/9£129
Thu 5/1105:25 -
1 stop22h 35m
Sun 8/1116:00 -
1 stop11h 40m
Deal found 10/9£131

Find flight deals from Istanbul to Sofia

Round-trip from

£106

One-way from

£68

Popular in

November

Cheapest in

December

Average price

£143
Turkish Airlines
  • Turkish Airlines
  • 23/11-30/11
  • Nonstop
  • 2h 50m total
  • Istanbul to Sofia
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Sky Express
  • Sky Express
  • 4/12-31/12
  • 1 total stop
  • 10h 15m total
  • Istanbul to Sofia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Istanbul Airport to Sofia that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Thu 5/11

05:25-03:00

1 stop22h 35m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£79

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Tue 15/12

05:25-15:30

1 stop11h 05m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£79

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Fri 30/10

05:25-03:00

1 stop22h 35m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£83

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Wed 23/9

04:25-03:00

1 stop22h 35m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£83

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Sat 24/10

16:40-16:30

1 stop23h 50m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£83

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Fri 18/12

05:25-03:00

1 stop22h 35m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£92

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Mon 23/11

08:30-08:50

Nonstop1h 20m

Sofia

Mon 30/11

21:45-00:15

Nonstop1h 30m

£106
Fastest return journey

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Fri 27/11

10:45-11:05

Nonstop1h 20m

Sofia

Sun 29/11

11:55-14:20

Nonstop1h 25m

£106

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Thu 5/11

14:55-15:10

Nonstop1h 15m

Sofia

Sun 8/11

09:40-12:10

Nonstop1h 30m

£110

IstanbulSofia

IST Istanbul - SOF Sofia

ISTSOF

Istanbul

Sun 25/10

10:45-11:05

Nonstop1h 20m

Sofia

Sun 1/11

16:00-18:30

Nonstop1h 30m

£120

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Istanbul to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Istanbul with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Istanbul Airport to Sofia

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

To ensure you get the cheapest price possible for a flight from Istanbul Airport to Sofia, you should look to book at least 32 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Istanbul Airport to Sofia?

Currently, December is the cheapest month in which you can book a flight from Istanbul Airport to Sofia (average of £81). Flying from Istanbul Airport to Sofia in November is currently the most expensive (average of £156). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IST to SOF?

When flying from Istanbul Airport to Sofia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Istanbul Airport to Sofia?

Airfare is typical for this route at the moment.

Istanbul Airport to Sofia flights typically cost between £103 and £195 in November.
The cheapest return price found within the last 5 days was £106 on Turkish Airlines (23 Nov–30 Nov).

Related info for your journey

  • What airport do you fly into for flights to Sofia from Istanbul?

    Most people fly into Sofia (SOF) if they book a flight to Sofia from Istanbul. On average, Sofia has 4 inbound flights from Istanbul per day from 0 airlines. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

  • How long is the flight from Istanbul Airport to Sofia?

    Airlines like Turkish Airlines and Air Serbia fly from Istanbul Airport to Sofia in about 1h 20m. The time it takes to get you to your destination can typically vary by up to 22h 30m. Airlines will cover a distance of 291 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Istanbul Airport to Sofia?

    Before booking your flight to Sofia from Istanbul Airport, check out the most reliable airlines to get you to your destination on time: Singapore Airlines (92%), Egyptair (89%), IndiGo( 84%).

  • Can I find deals for flights from Istanbul to Sofia that include hotel bookings?

    Yes. In addition to deals on Istanbul to Sofia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Istanbul to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Istanbul to Sofia.

  • Can I find deals for business class flights from Istanbul to Sofia?

    Yes. Cheapflights offers flight deals from Istanbul to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Istanbul Airport to Sofia?

    Currently, December is the cheapest month in which you can book a flight from Istanbul Airport to Sofia (average of £81). Flying from Istanbul Airport to Sofia in November is currently the most expensive (average of £156). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from Istanbul to Sofia?

When you search for this flight from Istanbul to Sofia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Istanbul to Sofia?

Cheapflights simply makes it quick and affordable to book flights from Istanbul to Sofia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Istanbul to Sofia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Istanbul to Sofia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Istanbul to Sofia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sofia from Istanbul today and book when prices fit your budget.

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