$85+ Cheap flights from Istanbul (IST) to Sofia (SOF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IST — SOF
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Istanbul to Sofia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Istanbul to Sofia are usually found in December or January, booked 64 days in advance, depart on a Monday or Tuesday and return on a Wednesday
Cheap flight deals from Istanbul to Sofia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Istanbul to SofiaExplore 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 September 7, 2026.
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 September 7, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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 11/268:35 pm -
Nonstop1h 20m
Sun 11/294:00 pm -
Nonstop1h 30m
Deal found 9/7![Turkish Airlines logo]()
$143
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Thu 10/226:55 pm -
Nonstop1h 25m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/3![Turkish Airlines logo]()
$159
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/246:55 pm -
Nonstop1h 25m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/3![Turkish Airlines logo]()
$161
This Turkish Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 10/187:30 am -
Nonstop1h 15m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/2![Turkish Airlines logo]()
$165
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 10/161:45 pm -
Nonstop1h 15m
Fri 10/233:50 pm -
Nonstop1h 30m
Deal found 9/3![Turkish Airlines logo]()
$166
This Air Serbia deal was found by Cheapflights users on 9/6. 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.
Fri 11/274:40 pm -
1 stop23h 50m
Mon 11/305:00 am -
1 stop11h 00m
Deal found 9/6![Air Serbia logo]()
$168
This Air Serbia deal was found by Cheapflights users on 9/6. 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.
Sat 11/285:25 am -
1 stop11h 05m
Thu 1/144:00 pm -
1 stop11h 40m
Deal found 9/6![Air Serbia logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:25 am -
1 stop5h 35m
Wed 10/73:50 pm -
Nonstop1h 30m
Deal found 9/2![Multiple Airlines logo]()
$178
This Air Serbia deal was found by Cheapflights users on 9/5. 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 12/225:25 am -
1 stop11h 05m
Fri 12/255:00 am -
1 stop22h 40m
Deal found 9/5![Air Serbia logo]()
$179
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Thu 10/224:25 am -
1 stop11h 05m
Sun 10/254:00 pm -
1 stop24h 00m
Deal found 9/3![Air Serbia logo]()
$180
This Air Serbia deal was found by Cheapflights users on 9/5. 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.
Thu 10/224:40 pm -
1 stop22h 50m
Mon 10/264:00 pm -
1 stop24h 00m
Deal found 9/5![Air Serbia logo]()
$181
Best flights from Istanbul to SofiaDiscover carefully curated flight deals from Istanbul to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Istanbul to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Fri 11/274:40 pm -
1 stop23h 50m
Mon 11/305:00 am -
1 stop11h 00m
Deal found 9/3![Air Serbia logo]()
$168
This Air Serbia deal was found by Cheapflights users on 9/6. 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 12/15:25 am -
1 stop11h 05m
Mon 12/74:00 pm -
1 stop11h 40m
Deal found 9/6![Air Serbia logo]()
$168
This Air Serbia deal was found by Cheapflights users on 9/6. 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.
Thu 11/265:25 am -
1 stop22h 35m
Thu 12/34:00 pm -
1 stop11h 40m
Deal found 9/6![Air Serbia logo]()
$169
This Air Serbia deal was found by Cheapflights users on 9/6. 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.
Mon 1/45:45 pm -
1 stop22h 45m
Wed 1/64:00 pm -
1 stop11h 40m
Deal found 9/6![Air Serbia logo]()
$169
This Air Serbia deal was found by Cheapflights users on 9/5. 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.
Thu 10/224:25 am -
1 stop11h 05m
Mon 10/264:00 pm -
1 stop24h 00m
Deal found 9/5![Air Serbia logo]()
$180
This Air Serbia deal was found by Cheapflights users on 9/4. 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.
Thu 10/224:25 am -
1 stop11h 05m
Sun 10/254:00 pm -
1 stop24h 00m
Deal found 9/4![Air Serbia logo]()
$180
This Air Serbia deal was found by Cheapflights users on 9/6. 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.
Fri 10/234:25 am -
1 stop11h 05m
Mon 10/264:00 pm -
1 stop11h 40m
Deal found 9/6![Air Serbia logo]()
$181
This Air Serbia deal was found by Cheapflights users on 9/4. 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.
Thu 10/154:25 am -
1 stop22h 35m
Sun 10/254:00 pm -
1 stop24h 00m
Deal found 9/4![Air Serbia logo]()
$181
Last-minute flights from Istanbul to SofiaDiscover last-minute flight deals from Istanbul to Sofia. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Istanbul to Sofia. Data last updated September 7, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:45 pm -
Nonstop1h 15m
Wed 9/302:20 pm -
1 stop18h 20m
Deal found 9/3![Multiple Airlines logo]()
$185
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Mon 9/211:45 pm -
Nonstop1h 15m
Wed 9/303:50 pm -
Nonstop1h 30m
Deal found 9/3![Turkish Airlines logo]()
$193
This Orbitz deal was found by Cheapflights users on 9/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:45 pm -
Nonstop1h 15m
Fri 9/259:10 pm -
Nonstop1h 30m
Deal found 9/3![Turkish Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:25 am -
1 stop5h 35m
Wed 10/73:50 pm -
Nonstop1h 30m
Deal found 9/2![Multiple Airlines logo]()
$178
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Thu 10/84:25 am -
1 stop11h 05m
Sun 10/114:00 pm -
1 stop11h 40m
Deal found 9/3![Air Serbia logo]()
$190
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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.
Fri 10/161:45 pm -
Nonstop1h 15m
Fri 10/233:50 pm -
Nonstop1h 30m
Deal found 9/3![Turkish Airlines logo]()
$166
This Turkish Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 10/187:30 am -
Nonstop1h 15m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/2![Turkish Airlines logo]()
$165
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Thu 10/226:55 pm -
Nonstop1h 25m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/3![Turkish Airlines logo]()
$159
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Thu 10/224:25 am -
1 stop11h 05m
Sun 10/254:00 pm -
1 stop24h 00m
Deal found 9/3![Air Serbia logo]()
$180
This Air Serbia deal was found by Cheapflights users on 9/5. 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.
Thu 10/224:40 pm -
1 stop22h 50m
Mon 10/264:00 pm -
1 stop24h 00m
Deal found 9/5![Air Serbia logo]()
$181
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/246:55 pm -
Nonstop1h 25m
Sun 10/2511:55 am -
Nonstop1h 25m
Deal found 9/3![Turkish Airlines logo]()
$161
One-way flights from Istanbul to SofiaSearch for one-way flight options from Istanbul to Sofia. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Istanbul to Sofia. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:25 am -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Wizz Air logo]()
$85
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:45 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Turkish Airlines logo]()
$91
This Jetabroad deal was found by Cheapflights users on 9/4. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:30 am -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Turkish Airlines logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:25 am -
1 stop26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$97
This Jetabroad deal was found by Cheapflights users on 9/3. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:55 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Turkish Airlines logo]()
$98
This FlightHub deal was found by Cheapflights users on 9/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/182:55 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Turkish Airlines logo]()
$99
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:45 am -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Turkish Airlines logo]()
$100
This FlightHub deal was found by Cheapflights users on 9/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:45 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Turkish Airlines logo]()
$104
This Air Serbia deal was found by Cheapflights users on 9/2. 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.
Fri 12/185:25 am -
1 stop22h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Air Serbia logo]()
$106
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Sat 12/125:25 am -
1 stop11h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Air Serbia logo]()
$107
This Air Serbia deal was found by Cheapflights users on 9/7. 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.
Fri 10/305:25 am -
1 stop22h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Air Serbia logo]()
$112
Find 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $143 (Turkish Airlines) |
One-way from | $85 (Kiwi.com) |
Popular in | November |
Cheapest in | December |
Average price | $194 |
Good one-way deal | $238 or less |
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 7,457,451 searches. Data last updated September 7, 2026.
Use the filters below to find and compare flights from Istanbul Airport to Sofia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Fri 12/18
2:55 pm-3:10 pm
Nonstop1h 15m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Fri 12/18
5:25 am-3:00 am
1 stop22h 35m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$106
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Sat 12/19
5:45 pm-3:30 pm
1 stop22h 45m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$107
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Tue 12/15
5:25 am-3:30 pm
1 stop11h 05m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$107
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Sat 12/12
5:25 am-3:30 pm
1 stop11h 05m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$107
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Fri 10/30
5:25 am-3:00 am
1 stop22h 35m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$112
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Tue 10/20
4:25 am-3:30 pm
1 stop11h 05m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$113
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Wed 9/16
9:25 am-11:35 am
1 stop26h 10m
Sofia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$119
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Fri 11/27
4:40 pm-3:30 pm
1 stop23h 50m
Sofia
Mon 11/30
5:00 am-5:00 pm
1 stop11h 00m
$168
IstanbulSofia
IST Istanbul - SOF Sofia
ISTSOF
Istanbul
Tue 12/1
5:25 am-3:30 pm
1 stop11h 05m
Sofia
Mon 12/7
4:00 pm-4:40 am
1 stop11h 40m
$168
Showing 1-10 of 16 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
IST-SOF
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
Prices
Airlines
Delays
How far ahead should I book a flight from Istanbul Airport to Sofia?
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 32 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, December is the cheapest month in which you can book a flight from Istanbul Airport to Sofia (average of $110). Flying from Istanbul Airport to Sofia in November is currently the most expensive (average of $211). 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 September 7, 2026.
It’s typically best to fly out from Istanbul Airport to Sofia in the evening. Doing so could potentially save you 33% on the flight price compared to flying in the afternoon, which is usually more expensive.
How often are flights from Istanbul to Sofia delayed?
About 13% of weekly flights between Istanbul and Sofia have experienced delays in the past year, with the average delay time being 85 minutes.
What is the most punctual flight time for Istanbul to Sofia flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Istanbul to Sofia flights?
Over the last year, Turkish Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
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 September 7, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines and Pegasus Airlines from Istanbul Airport to Sofia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
7.8
Comfort
7.3
Food
7.5
Boarding
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAssia,Nov 2025
IST - YUL
Entertainment
7.5
Crew
7.8
Comfort
7.3
Food
7.5
Boarding
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAssia,Nov 2025
IST - YUL
Entertainment
7.5
Crew
7.8
Comfort
7.3
Food
7.5
Boarding
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAssia,Nov 2025
IST - YUL
Related info for your journey
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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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$137 | FlexibilityNo cancel fee | On-time82% | |
| Cheapest$128 | Average$277 | FlexibilityNo cancel fee | On-time77% |