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$90+ Cheap flights from Sofia (SOF) to Istanbul (IST)

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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IST
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Sofia to Istanbul are usually found in March or January, booked 76 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Sofia to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Istanbul (IST). 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 April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$171
(Turkish Airlines)

One-way from

$90
(Trip.com)

Popular in

November

Cheapest in

March

Average price

$221

Good round-trip deal

$696 or less

Good one-way deal

$207 or less
Provider with most accurate pricing for Sofia-Istanbul flight deals.
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Provider most trusted by Cheapflights users for Sofia-Istanbul flights.
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From Sofia to Istanbul
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One-way flight from Sofia to Istanbul
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Highest demand for flights based on searches. 11% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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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Find flight deals from Sofia to Istanbul

Cheapest flights from Sofia to Istanbul
Explore the most affordable flight options available from Sofia to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Turkish Airlines deal was found by Cheapflights users on 4/29. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/153:35 pmSOF - IST
Nonstop1h 35mTurkish Airlines
Sun 5/181:20 pmIST - SOF
Nonstop1h 25mTurkish Airlines
Deal found 4/29$171
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Sat 5/179:40 pmSOF - IST
1 stop13h 15mMultiple Airlines
Mon 5/191:20 pmIST - SOF
Nonstop1h 25mMultiple Airlines
Deal found 4/29$175
This Air Serbia deal was found by Cheapflights users on 4/29. 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 11/185:00 amSOF - IST
1 stop10h 50mAir Serbia
Wed 11/194:40 pmIST - SOF
1 stop11h 20mAir Serbia
Deal found 4/29$227
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/44:00 pmSOF - IST
1 stop10h 20mAegean Airlines
Sun 6/154:35 amIST - SOF
1 stop9h 55mAegean Airlines
Deal found 4/29$271
This Lufthansa deal was found by Cheapflights users on 4/29. 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.
Fri 11/142:15 pmSOF - IST
1 stop7h 30mLufthansa
Mon 11/247:00 pmIST - SOF
2 stops19h 00mLufthansa
Deal found 4/29$274
This LOT deal was found by Cheapflights users on 4/29. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/12:35 pmSOF - IST
1 stop26h 05mLOT
Wed 6/41:55 pmIST - SOF
1 stop23h 55mLOT
Deal found 4/29$303
This TAROM deal was found by Cheapflights users on 4/29. 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 TAROM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:45 pmSOF - IST
1 stop14h 05mTAROM
Tue 11/1812:15 amIST - SOF
1 stop20h 00mTAROM
Deal found 4/29$412
This Priceline deal was found by Cheapflights users on 4/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:35 amSOF - IST
1 stop22h 55mSky Express
Sun 5/189:45 pmIST - SOF
1 stop11h 15mSky Express
Deal found 4/29$549

Cheapflights Fare Finder

Customize your flight search to find flights from Sofia to Istanbul 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 April 29, 2025.
Use the filters below to find and compare flights from Sofia to Istanbul Airport that are best for you.

Fly from

Sofia

Fly to

Istanbul

Route

Depart

Return

Price

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 5/15

3:35 pm-5:10 pm

Nonstop1h 35m

Istanbul

Sun 5/18

1:20 pm-2:45 pm

Nonstop1h 25m

$171

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sat 5/17

9:40 pm-10:55 am

1 stop13h 15m

Istanbul

Mon 5/19

1:20 pm-2:45 pm

Nonstop1h 25m

$175

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 5/15

5:00 am-3:30 am

1 stop22h 30m

Istanbul

Sun 5/18

4:30 am-2:55 am

1 stop22h 25m

$241

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 6/4

4:00 pm-2:20 am

1 stop10h 20m

Istanbul

Sun 6/15

4:35 am-2:30 pm

1 stop9h 55m

$271

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sun 6/1

2:35 pm-4:40 pm

1 stop26h 05m

Istanbul

Wed 6/4

1:55 pm-1:50 pm

1 stop23h 55m

$303

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 6/5

6:00 am-9:20 pm

2 stops15h 20m

Istanbul

Mon 6/9

2:00 pm-10:50 pm

1 stop8h 50m

$336

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 5/15

9:35 am-8:30 am

1 stop22h 55m

Istanbul

Sun 5/18

9:45 pm-9:00 am

1 stop11h 15m

$549

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 5/22

3:35 pm-5:10 pm

Nonstop1h 35m

$90

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sat 5/10

9:40 pm-10:55 am

1 stop13h 15m

$91

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sun 8/17

3:20 pm-2:20 am

1 stop11h 00m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 14 results
1
2

Compare providers for flights from Sofia to Istanbul

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 Sofia to Istanbul in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 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 Sofia-Istanbul Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Sofia-Istanbul Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Sofia-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Istanbul Airport flights, Cheapflights users trust Mytrip the most. Mytrip 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 Sofia-Istanbul Airport 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 Sofia to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Sofia 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 Sofia to Istanbul Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Sofia to Istanbul. Price data was last updated on April 25, 2025.

Booking 76 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, November is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of $923). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of $1,423). 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?

Find hourly flight availability from Sofia to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

It’s optimal to fly from Sofia to Istanbul Airport at noon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Istanbul by month

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

In terms of precipitation, rainfall in Istanbul Airport ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Istanbul Airport when rainfall is around 0.4 in.

Temperature in Istanbul by month

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

If weather is an important factor for your trip to Istanbul Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. 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 Istanbul. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Aegean Airlines, Norwegian and LOT from Sofia to Istanbul by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

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
739 reviews
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Norwegian
7.8
Good
227 reviews
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

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
1,069 reviews
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Sky Express
7.6
Good
113 reviews
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

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
3,788 reviews
Aegean Airlines
8.1
Very good
739 reviews

Comfort

7.8

Boarding

7.8

Food

7.3

Entertainment

6.9

Crew

8.6

Overall

8.1

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 Sofia to Istanbul. 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 from for flights from Sofia to Istanbul?

    Most people fly from Sofia (SOF) if they book a flight from Sofia to Istanbul. On average, Sofia has 4 outbound flights to 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 Sofia to Istanbul Airport round-trip?

    Currently priced at $171, Turkish Airlines will fly you from Sofia to Istanbul Airport and back. In addition to Turkish Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Serbia and Aegean Airlines - these airlines can fly you to your destination from $241 and $271, respectively.

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

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $91 and $109 on Norwegian and Aegean Airlines, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Sofia to Istanbul Airport consider choosing Turkish Airlines (80%), IndiGo (79%) or Royal Jordanian (77%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Sofia to Istanbul Airport is $115. On average you can expect to pay $1,179. The most popular route, (Sofia - Istanbul), can usually be booked for $104.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of $923). Flying from Sofia to Istanbul Airport in June is currently the most expensive (average of $1,423). 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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Top 2 airlines flying from Sofia to Istanbul

Discover the top 2 airlines that operate flights from Sofia to Istanbul. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest$69Average$112FlexibilityNo cancel feeOn-time82%
Turkish AirlinesCheapest$146Average$242FlexibilityNo cancel feeOn-time77%

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