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Cheap flights from Sofia to Istanbul Airport from £40

SOF — IST
29 Nov — 6 Dec1
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

Thu 3/1216:00 -
Nonstop1h 30m
Sun 6/1210:30 -
Nonstop1h 20m
Deal found 29/10£100
Thu 3/1216:00 -
1 stop11h 40m
Sun 6/1216:40 -
1 stop11h 20m
Deal found 28/10£129
Mon 9/1105:00 -
1 stop11h 00m
Tue 1/1205:25 -
1 stop11h 05m
Deal found 25/10£149
Sat 7/1121:45 -
Nonstop1h 30m
Thu 3/1208:20 -
Nonstop1h 20m
Deal found 25/10£152
Tue 3/1116:00 -
1 stop22h 55m
Sat 5/1217:45 -
1 stop22h 45m
Deal found 25/10£154
Sun 29/1116:00 -
1 stop11h 40m
Sun 6/1216:40 -
1 stop11h 20m
Deal found 29/10£158
Sun 8/1116:00 -
1 stop24h 00m
Sat 5/1205:25 -
1 stop11h 05m
Deal found 25/10£159
Tue 3/1116:00 -
Nonstop1h 30m
Sun 6/1210:30 -
Nonstop1h 20m
Deal found 25/10£160
Thu 5/1116:00 -
1 stop11h 40m
Sat 5/1205:25 -
1 stop11h 05m
Deal found 25/10£163
Tue 3/1116:00 -
Nonstop1h 30m
Mon 7/1208:20 -
Nonstop1h 20m
Deal found 25/10£169

Find flight deals from Sofia to Istanbul

Round-trip from

£79

One-way from

£40

Popular in

June

Cheapest in

March

Average price

£132

Good round-trip deal

£386 or less

Good one-way deal

£320 or less
TAROM
  • TAROM
  • 24/3-28/3
  • 2 total stops
  • 29h 05m total
  • Sofia to Istanbul
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TAROM
  • TAROM
  • 16/3-31/12
  • 1 total stop
  • 11h 05m total
  • Sofia to Istanbul
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in October 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

Fri 4/12

05:00-04:40

1 stop22h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Wed 2/12

16:00-04:40

1 stop11h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Sat 14/11

05:00-17:00

1 stop11h 00m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Mon 11/1

16:00-17:00

1 stop24h 00m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Mon 23/11

16:00-04:40

1 stop11h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63
Fastest return journey

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Thu 10/12

16:00-18:30

Nonstop1h 30m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Wed 17/3

16:00-18:30

Nonstop1h 30m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£73

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Wed 25/11

16:00-04:40

1 stop11h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Fri 13/11

05:00-04:40

1 stop22h 40m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

SofiaIstanbul

SOF Sofia - IST Istanbul

SOFIST

Sofia

Tue 15/12

16:00-15:55

1 stop22h 55m

Istanbul

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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, March is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £106). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of £181). 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 47% 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 £83 and £148 in March.
The cheapest return price found within the last 5 days was £79 on TAROM (24 Mar–28 Mar).

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
4,461 reviews
Check prices

Food

7.5

Overall

7.4

Entertainment

7.5

Boarding

7.3

Crew

7.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SEA - IST

I was in business class on this airplane for a 12 hour flight from Seattle to Istanbul. It was about the smoothest in the most luxurious flight. I think I have ever been on. The staff were excellent and extremely patient which I really appreciate it. Given the opportunity, I will certainly choose Turkish Airlines in the future. Job well done, hope to see you again in the future
Turkish Airlines
7.4
Good
4,461 reviews
Turkish Airlines
7.4
Good
4,461 reviews
Check prices

Food

7.5

Overall

7.4

Entertainment

7.5

Boarding

7.3

Crew

7.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SEA - IST

I was in business class on this airplane for a 12 hour flight from Seattle to Istanbul. It was about the smoothest in the most luxurious flight. I think I have ever been on. The staff were excellent and extremely patient which I really appreciate it. Given the opportunity, I will certainly choose Turkish Airlines in the future. Job well done, hope to see you again in the future
Pegasus Airlines
6.6
Okay
603 reviews
Turkish Airlines
7.4
Good
4,461 reviews
Check prices

Food

7.5

Overall

7.4

Entertainment

7.5

Boarding

7.3

Crew

7.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SEA - IST

I was in business class on this airplane for a 12 hour flight from Seattle to Istanbul. It was about the smoothest in the most luxurious flight. I think I have ever been on. The staff were excellent and extremely patient which I really appreciate it. Given the opportunity, I will certainly choose Turkish Airlines in the future. Job well done, hope to see you again in the future

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 3 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 11h 40m. 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 £76, 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 £110. You may be able to fly from Sofia to Istanbul Airport for 44% 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 (72%), Royal Jordanian (72%) and Singapore Airlines (72%).

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

    The cheapest flight price from Sofia to Istanbul Airport is £178. On average you can expect to pay £522. The most popular route, (Sofia - Istanbul), can usually be booked for £82.

  • 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, March is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £106). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of £181). 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£76Average£98FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Turkish AirlinesCheapest£110Average£204FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

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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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