A modern shopping mall with multiple levels, retail stores, and a central atrium with a unique ceiling design.

CA $161 Cheap Flights from Sofia (SOF) to Istanbul (IST)

View CA $161 flight on Sat, Sep 12, 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Istanbul Airport (IST)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Sofia (SOF) to Istanbul (IST)

Prices were available within the past 7 days and start at CA $161 for one-way flights and CA $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Oct 7 - Wed, Oct 21
SOF
Sofia
IST
Istanbul
CA $308 Roundtrip, found 3 days ago
CA $308
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Oct 7 from Sofia to Istanbul, returning Wed, Oct 21, priced at CA $308 found 3 days ago
Lufthansa
Thu, Sep 17 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $332 Roundtrip, found 3 days ago
CA $332
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Sep 17 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $332 found 3 days ago
Air Serbia
Thu, Sep 17 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $340 Roundtrip, found 3 days ago
CA $340
Roundtrip
found 3 days ago
Select Air Serbia flight, departing Thu, Sep 17 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $340 found 3 days ago
Lufthansa
Thu, Sep 17 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $353 Roundtrip, found 3 days ago
CA $353
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Sep 17 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $353 found 3 days ago
Air Serbia
Thu, Sep 17 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $363 Roundtrip, found 3 days ago
CA $363
Roundtrip
found 3 days ago
Select Air Serbia flight, departing Thu, Sep 17 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $363 found 3 days ago
Air Serbia
Thu, Sep 17 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $367 Roundtrip, found 3 days ago
CA $367
Roundtrip
found 3 days ago
Select Air Serbia flight, departing Thu, Sep 17 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $367 found 3 days ago
LOT-Polish Airlines
Wed, Oct 7 - Wed, Oct 21
SOF
Sofia
IST
Istanbul
CA $374 Roundtrip, found 3 days ago
CA $374
Roundtrip
found 3 days ago
Select LOT-Polish Airlines flight, departing Wed, Oct 7 from Sofia to Istanbul, returning Wed, Oct 21, priced at CA $374 found 3 days ago
Aegean
Wed, Oct 7 - Wed, Oct 21
SOF
Sofia
IST
Istanbul
CA $374 Roundtrip, found 3 days ago
CA $374
Roundtrip
found 3 days ago
Select Aegean flight, departing Wed, Oct 7 from Sofia to Istanbul, returning Wed, Oct 21, priced at CA $374 found 3 days ago
SKY express
Fri, Sep 11 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $379 Roundtrip, found 3 days ago
CA $379
Roundtrip
found 3 days ago
Select SKY express flight, departing Fri, Sep 11 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $379 found 3 days ago
Lufthansa
Fri, Sep 11 - Sun, Sep 20
SOF
Sofia
IST
Istanbul
CA $381 Roundtrip, found 3 days ago
CA $381
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 11 from Sofia to Istanbul, returning Sun, Sep 20, priced at CA $381 found 3 days ago

Find the cheapest month to fly from Sofia (SOF) to Istanbul (IST)

April is typically the cheapest month to fly

From CA $138 - CA $334 per traveller.

Frequently asked questions

How much does a flight from Sofia (SOF) to Istanbul (IST) cost?
You can find cheap one-way flights from CA $161 and cheap return flights from CA $308 SOF to IST with Expedia. One-way flights typically cost between CA$218 and CA$1,053 and return flights often range between CA$462 and CA$1,841. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SOF to IST ticket fares go up or down.
What is the cheapest month to fly from Sofia (SOF) to Istanbul (IST)?
The cheapest months to fly from SOF to IST are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Sofia (SOF) to Istanbul (IST)?
There is 1 airline offering direct flights from Sofia (SOF) to Istanbul (IST). Turkish Airlines operates 23 direct flights from Sofia (SOF) to Istanbul (IST) every week.
How do I find cheap flights from Sofia (SOF) to Istanbul (IST)?
To find a cheap flight from Sofia (SOF) to Istanbul (IST), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Sofia (SOF) to Istanbul (IST)?
The best airline to fly with from Sofia (SOF) to Istanbul (IST) will differ from traveler to traveler. If you like to fly early, Pegasus Airlines offers early morning flights. If price is the most important factor, Pegasus Airlines typically offers the lowest fares. Austrian Airlines offers the most daily flights from Sofia (SOF) to Istanbul (IST), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Sofia (SOF) to Istanbul (IST)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Sofia (SOF) to Istanbul (IST)?
You'll find approximately 3 nonstop flights per day from Sofia (SOF) to Istanbul (IST). For even more choices, look at flights that include layovers, as there are around 24 connecting flights per day. Some common connection points include Vienna Intl. (VIE), Franz Josef Strauss Intl. (MUC), and Frankfurt Intl. (FRA).
What is the earliest flight from Sofia (SOF) to Istanbul (IST)?
The earliest flight from Sofia (SOF) to Istanbul (IST) typically departs around 5:00 AM. This service is operated by Air Serbia and runs year-round, meaning you can find this early flight option throughout January, February, March, April, May, June, July, August, September, October, November, and December. An early departure like this can be great for maximising your time in Istanbul, allowing you to arrive and start your day early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sofia (SOF) to Istanbul (IST)?
You'll find the most flights from Sofia (SOF) to Istanbul (IST) on Fridays, with around 17 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Turkish Airlines, LOT-Polish Airlines, and Lufthansa. Fridays offer notably more flight options compared to other days of the week, so if flexibility is key, this is a great day to consider flying.
What are the most popular departure times for flights from Sofia (SOF) to Istanbul (IST)?
The most popular departure times for flights from Sofia (SOF) to Istanbul (IST) are between 12pm and 3pm. Many major carriers, including Lufthansa, LOT-Polish Airlines and Austrian Airlines, offer flights during this window. Many travellers prefer this time as it allows for a relaxed morning before heading to the airport, and you'll arrive in Istanbul with plenty of time to settle in for the evening.
How long does it take to fly from Sofia (SOF) to Istanbul (IST)?
A direct flight from Sofia (SOF) to Istanbul (IST) typically takes around 1 hour 30 minutes. This route covers a distance of approximately 470 kilometres. If you opt for a one-stop flight, the journey usually takes much longer, around 18 hours 18 minutes, while flights with two or more stops can extend to about 19 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Sofia (SOF) to Istanbul (IST)?
Yes, you can fly business class between SOF and IST. Airlines that offer business class service on this route include:
  • Lufthansa
  • Air Baltic
  • LOT-Polish Airlines
  • Bulgaria Air
  • British Airways
  • Turkish Airlines
  • Aegean
  • Lufthansa Cityline
  • Med View Airlines
  • Austrian Airlines
  • Tarom-Romanian Air Transport
How do I earn miles on a Sofia (SOF) to Istanbul (IST) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Istanbul (IST) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Istanbul (IST) from Sofia (SOF)?
If you're planning to travel to Istanbul from SOF, you can fly directly into Istanbul Airport (IST) which offers international flights and connections. Some flights may connect through major hubs like Franz Josef Strauss Intl. (MUC), Vienna Intl. (VIE), or Eleftherios Venizelos (ATH) before reaching Istanbul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sofia (SOF) to Istanbul (IST) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Istanbul (IST) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sofia (SOF) to Istanbul (IST) flight and hotel package?
Securing a Sofia (SOF) to Istanbul (IST) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sofia (SOF) to Istanbul (IST)?
If you booked your Sofia (SOF) to Istanbul (IST) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sofia
Destination airport
Istanbul
Airlines serving
Aegean, Air Serbia, LOT-Polish Airlines, Lufthansa, Tarom-Romanian Air Transport, Turkish Airlines
Roundtrip price
CA $308
Distance
466 km
Average flight time
1 hour 30 mins

Book with confidence

Sofia to Istanbul Flights

The easy way to book your flights from Sofia to Istanbul 

With Expedia, it’s simple to find and book flights to Istanbul from Sofia whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Istanbul, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Sofia to Istanbul today, tomorrow, or this week.  

 

Save dollars with cheap flights from Sofia, SOF to Istanbul, IST 

Sort your search results by price to find great deals on your flight from Sofia to Istanbul—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Istanbul from Sofia currently is just CA $308 rising to CA $381.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Istanbul  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Istanbul from Sofia 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Istanbul with Expedia today.

Sofia to Istanbul Flights

Explore a world of travel with Expedia

*Available to Expedia members.