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Cheap flights from Sofia to Istanbul Airport from £65

SOF — IST
17 Oct — 24 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sofia to Istanbul

Enter your travel dates to find the best prices.

Cheapest flights from Sofia to Istanbul

Fri 6/1111:55 -
Nonstop1h 25m
Sun 8/1114:55 -
Nonstop1h 15m
Deal found 16/9£103
Tue 10/1116:00 -
Nonstop1h 30m
Thu 12/1120:30 -
Nonstop1h 20m
Deal found 13/9£104
Tue 27/1016:00 -
Nonstop1h 30m
Sat 31/1020:30 -
Nonstop1h 20m
Deal found 15/9£130
Sun 22/1116:00 -
1 stop11h 40m
Mon 23/1117:45 -
1 stop22h 45m
Deal found 16/9£132
Fri 27/1116:05 -
1 stop23h 55m
Tue 1/1205:25 -
1 stop11h 05m
Deal found 17/9£133
Fri 30/1005:00 -
1 stop9h 55m
Fri 6/1105:25 -
1 stop11h 05m
Deal found 15/9£134
Thu 29/1016:00 -
Nonstop1h 30m
Sun 1/1110:45 -
Nonstop1h 20m
Deal found 16/9£138
Wed 14/1014:20 -
1 stop21h 50m
Wed 21/1018:55 -
Nonstop1h 25m
Deal found 16/9£153
Sat 10/1005:00 -
1 stop22h 40m
Thu 15/1004:25 -
1 stop22h 35m
Deal found 17/9£153
Tue 13/1016:00 -
1 stop23h 00m
Fri 16/1015:45 -
1 stop23h 45m
Deal found 13/9£154

Find flight deals from Sofia to Istanbul

Round-trip from

£103

One-way from

£65

Popular in

June

Cheapest in

October

Average price

£140

Good round-trip deal

£643 or less

Good one-way deal

£65 or less
Turkish Airlines
  • Turkish Airlines
  • 6/11-8/11
  • Nonstop
  • 2h 40m total
  • Sofia to Istanbul
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Air Serbia
  • Air Serbia
  • 21/2-31/12
  • 1 total stop
  • 11h 40m total
  • Sofia to Istanbul
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£23 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Sofia to Istanbul.
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Price to beat on a one-way flight from Sofia to Istanbul.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Sun 21/2

16:00-04:40

1 stop11h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£65

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Tue 8/12

16:00-15:55

1 stop22h 55m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£65

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Thu 7/1

05:00-04:40

1 stop22h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£65
Fastest return journey

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Wed 14/10

21:10-22:40

Nonstop1h 30m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Tue 13/10

21:10-22:40

Nonstop1h 30m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Fri 23/10

05:00-15:00

1 stop10h 00m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£85

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Mon 12/10

16:00-03:40

1 stop11h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£85

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Sat 10/10

05:00-03:40

1 stop22h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£85

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Mon 19/10

16:00-15:55

1 stop23h 55m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£85

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Mon 28/9

05:00-03:40

1 stop22h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£95

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Sofia to Istanbul

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

Cheapflights Insights

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

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

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sofia to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £82). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of £179). 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 SOF to IST?

It’s typically best to fly out from Sofia to Istanbul Airport in the morning. Doing so could potentially save you 36% on the flight price compared to flying in the evening, which is usually more expensive.

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

Airfare is below average for this route at the moment.

Sofia to Istanbul Airport flights typically cost between £105 and £217 in November.
The cheapest return price found within the last 5 days was £103 on Turkish Airlines (6 Nov–8 Nov).

Reviews of airlines servicing Istanbul

See what other customers who have flown with Turkish Airlines and Pegasus Airlines from Sofia to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.4
Good
4,465 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Crew

7.8

Boarding

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.
Turkish Airlines
7.4
Good
4,465 reviews
Turkish Airlines
7.4
Good
4,465 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Crew

7.8

Boarding

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.
Pegasus Airlines
6.7
Okay
627 reviews
Turkish Airlines
7.4
Good
4,465 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Crew

7.8

Boarding

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

Related info for your journey

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

    Sofia (SOF) is the airport you will fly out of if you book a flight from Sofia to Istanbul. You should not have trouble finding flights to Istanbul from Sofia; the airport handles an average of 6 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sofia airport to Istanbul. It is only a 4.2 mi journey to Sofia (SOF) from Sofia’s city center.

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

    Air Serbia can get you from Sofia to Istanbul Airport in just under 23h 55m. Your travel time can differ by up to . The distance between Sofia and Istanbul Airport is about 291 mi.

  • What are the cheapest airlines flying from Sofia to Istanbul Airport round-trip?

    Currently priced at £65, Pegasus Airlines will fly you from Sofia to Istanbul Airport and back. In addition to Pegasus Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Turkish Airlines for as low as £106. You may be able to fly from Sofia to Istanbul Airport for 49% less than the average price by searching for these airlines.

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

    The top 3 most reliable airlines when flying from Sofia to Istanbul Airport are Egyptair (85%), Royal Jordanian (85%) and Singapore Airlines (85%).

  • What are the cheapest flights from Sofia to Istanbul Airport?

    The cheapest flight price from Sofia to Istanbul Airport is £63. On average you can expect to pay £405. The most popular route, (Sofia - Istanbul), can usually be booked for £141.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sofia to Istanbul 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 Sofia to Istanbul Airport?

    Currently, October is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £82). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of £179). 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

Travelling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Sofia to Istanbul

AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£65Average£89FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Turkish AirlinesCheapest£106Average£203FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

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Cheapflights makes it easy to find Sofia to Istanbul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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

Yes, we can. To see specific flights from Sofia to Istanbul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Sofia to Istanbul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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