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$89+ Cheap flights from Istanbul (IST) to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
IST — SOF
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Istanbul to Sofia are usually found in July or January, booked 90 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Istanbul to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Mytrip)

One-way from

$89
(Turkish Airlines)

Popular in

September

Cheapest in

July

Average price

$166

Good round-trip deal

$629 or less

Good one-way deal

$159 or less
Provider with most accurate pricing for Istanbul-Sofia flight deals.
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Provider most trusted by Cheapflights users for Istanbul-Sofia flights.
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From Istanbul to Sofia
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One-way flight from Istanbul to Sofia
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Highest demand for flights based on searches. 15% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Istanbul to Sofia.
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Price to beat on a one-way flight from Istanbul to Sofia.
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Find flight deals from Istanbul to Sofia

Cheapest flights from Istanbul to Sofia
Explore the most affordable flight options available from Istanbul to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Mytrip deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:00 pmIST - SOF
Nonstop1h 25mTurkish Airlines
Mon 4/289:15 pmSOF - IST
Nonstop1h 30mTurkish Airlines
Deal found 3/25$160
This Air Serbia deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/34:35 pmIST - SOF
1 stop23h 00mAir Serbia
Sun 6/224:05 pmSOF - IST
1 stop23h 45mAir Serbia
Deal found 3/25$165
This Mytrip deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/244:35 pmIST - SOF
1 stop23h 00mMultiple Airlines
Mon 4/283:35 pmSOF - IST
Nonstop1h 35mMultiple Airlines
Deal found 3/25$189
This Trip.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/61:55 pmIST - SOF
1 stop12h 05mLOT
Sat 6/215:20 amSOF - IST
1 stop11h 20mLOT
Deal found 3/25$224
This Lufthansa deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/152:00 pmIST - SOF
1 stop27h 50mLufthansa
Sat 4/266:15 amSOF - IST
1 stop6h 50mLufthansa
Deal found 3/26$265
This Aegean Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aegean Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/101:40 amIST - SOF
1 stop8h 20mAegean Airlines
Thu 8/143:20 pmSOF - IST
1 stop11h 00mAegean Airlines
Deal found 3/25$377
This KLM deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/245:05 pmIST - SOF
1 stop20h 55mKLM
Mon 4/287:00 amSOF - IST
1 stop9h 20mKLM
Deal found 3/26$745

Cheapflights Fare Finder

Customize your flight search to find flights from Istanbul to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
Use the filters below to find and compare flights from Istanbul Airport to Sofia that are best for you.

Fly from

Istanbul

Fly to

Sofia

Route

Depart

Return

Price

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Thu 4/24

7:00 pm-8:25 pm

Nonstop1h 25m

Sofia

Mon 4/28

9:15 pm-10:45 pm

Nonstop1h 30m

$160

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Tue 6/3

4:35 pm-3:35 pm

1 stop23h 00m

Sofia

Sun 6/22

4:05 pm-3:50 pm

1 stop23h 45m

$165

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Thu 4/24

4:35 pm-3:35 pm

1 stop23h 00m

Sofia

Mon 4/28

3:35 pm-5:10 pm

Nonstop1h 35m

$189

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Fri 6/6

1:55 pm-2:00 am

1 stop12h 05m

Sofia

Sat 6/21

5:20 am-4:40 pm

1 stop11h 20m

$224

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Tue 4/15

2:00 pm-5:50 pm

1 stop27h 50m

Sofia

Sat 4/26

6:15 am-1:05 pm

1 stop6h 50m

$265

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Sun 8/10

1:40 am-10:00 am

1 stop8h 20m

Sofia

Thu 8/14

3:20 pm-2:20 am

1 stop11h 00m

$377

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Thu 4/24

5:05 pm-2:00 pm

1 stop20h 55m

Sofia

Mon 4/28

7:00 am-4:20 pm

1 stop9h 20m

$745

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Thu 4/24

7:00 pm-8:25 pm

Nonstop1h 25m

$89

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Wed 4/9

3:40 pm-2:55 am

1 stop11h 15m

$104

IstanbulSofia

IST - SOF

ISTSOF

Istanbul

Mon 3/31

9:10 am-5:50 pm

1 stop8h 40m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 13 results
1
2

Compare providers for flights from Istanbul to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Istanbul to Sofia in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Istanbul Airport-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Istanbul Airport-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Istanbul Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Istanbul Airport-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Istanbul Airport-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Istanbul to Sofia. Price data was last updated on March 21, 2025.

The price you pay for your flight from Istanbul Airport to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Istanbul Airport to Sofia (average of $632). Flying from Istanbul Airport to Sofia in June is currently the most expensive (average of $1,243). 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?

Find hourly flight availability from Istanbul to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

It’s typically best to fly out from Istanbul Airport to Sofia in the afternoon. Doing so could potentially save you 50% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated March 26, 2025.
Peruse reviews from past customers who have flown with Aegean Airlines, KLM and LOT from Istanbul to Sofia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very good
729 reviews
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,319 reviews
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,061 reviews
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Turkish Airlines
7.3
Good
3,745 reviews
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Lufthansa
6.7
Okay
6,950 reviews
Aegean Airlines
8.1
Very good
729 reviews

Overall

8.1

Comfort

7.8

Food

7.3

Crew

8.6

Boarding

7.8

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from Istanbul to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 2 inbound flights from Istanbul per day from 2 airlines. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

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

    According to our current data, Turkish Airlines ($160), Air Serbia ($165), and LOT ($224) offers the cheapest pricing from Istanbul Airport to Sofia. You may be able to fly from Istanbul Airport to Sofia for 23% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Istanbul Airport to Sofia one-way?

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $89. Users have also found prices from $104 and $114 on Air Serbia and Aegean Airlines, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Istanbul Airport to Sofia consider choosing Egyptair (87%), Singapore Airlines (87%) or Royal Jordanian (84%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Istanbul Airport to Sofia is $86. On average you can expect to pay $417. The most popular route, (Istanbul - Sofia), can usually be booked for $104.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Istanbul Airport to Sofia (average of $632). Flying from Istanbul Airport to Sofia in June is currently the most expensive (average of $1,243). 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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Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
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Top 2 airlines flying from Istanbul to Sofia

Discover the top 2 airlines that operate flights from Istanbul to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest$74Average$131FlexibilityNo cancel feeOn-time82%
Turkish AirlinesCheapest$179Average$250FlexibilityNo cancel feeOn-time77%
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