HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Istanbul

$89+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IST
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Istanbul 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 Sofia to Istanbul are usually found in March or January, booked 34 days in advance, depart on a Tuesday or Thursday and return on a Friday

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 June 12, 2025.

Round-trip from

$166
(Mytrip)

One-way from

$89
(Mytrip)

Popular in

November

Cheapest in

March

Average price

$120

Good round-trip deal

$714 or less

Good one-way deal

$245 or less
From Sofia to Istanbul
Search Deals
One-way flight from Sofia to Istanbul
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Sofia to Istanbul.
Search Deals
Price to beat on a one-way flight from Sofia to Istanbul.
Search Deals

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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. 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.
Wed 9/179:25 amSOF - IST
Nonstop1h 30mTurkish Airlines
Mon 9/221:20 pmIST - SOF
Nonstop1h 25mTurkish Airlines
Deal found 6/12$166
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Wed 9/174:00 pmSOF - IST
1 stop10h 20mMultiple Airlines
Mon 9/221:20 pmIST - SOF
Nonstop1h 25mMultiple Airlines
Deal found 6/12$180
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/243:20 pmSOF - IST
1 stop11h 00mAegean Airlines
Sun 7/274:35 amIST - SOF
1 stop9h 55mAegean Airlines
Deal found 6/11$200
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/55:00 amSOF - IST
1 stop22h 30mAir Serbia
Sun 7/63:40 pmIST - SOF
1 stop11h 15mAir Serbia
Deal found 6/12$294
This LOT deal was found by Cheapflights users on 6/12. 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.
Sat 7/52:35 pmSOF - IST
1 stop22h 30mLOT
Sat 7/121:55 pmIST - SOF
1 stop23h 55mLOT
Deal found 6/12$306
This Lufthansa deal was found by Cheapflights users on 6/12. 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 6/136:15 amSOF - IST
1 stop10h 45mLufthansa
Sun 6/152:00 pmIST - SOF
1 stop8h 50mLufthansa
Deal found 6/12$370

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 June 12, 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

Wed 9/17

9:25 am-10:55 am

Nonstop1h 30m

Istanbul

Mon 9/22

1:20 pm-2:45 pm

Nonstop1h 25m

$166

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 9/17

4:00 pm-2:20 am

1 stop10h 20m

Istanbul

Mon 9/22

1:20 pm-2:45 pm

Nonstop1h 25m

$180

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 7/24

3:20 pm-2:20 am

1 stop11h 00m

Istanbul

Sun 7/27

4:35 am-2:30 pm

1 stop9h 55m

$200

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sat 7/5

5:00 am-3:30 am

1 stop22h 30m

Istanbul

Sun 7/6

3:40 pm-2:55 am

1 stop11h 15m

$294

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sat 7/5

2:35 pm-1:05 pm

1 stop22h 30m

Istanbul

Sat 7/12

1:55 pm-1:50 pm

1 stop23h 55m

$306

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 9/17

12:45 pm-9:20 pm

2 stops8h 35m

Istanbul

Mon 9/22

2:00 pm-11:00 pm

2 stops9h 00m

$381

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Tue 6/24

3:35 pm-5:10 pm

Nonstop1h 35m

$89

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 6/18

1:40 pm-7:30 am

1 stop17h 50m

$95

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Tue 8/12

3:20 pm-2:20 am

1 stop11h 00m

$102

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sun 10/5

8:20 pm-8:30 am

1 stop12h 10m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 results
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 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 June 9, 2025.

Booking 34 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 $1,374). 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 June 12, 2025.

It’s optimal to fly from Sofia to Istanbul Airport at noon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Sofia to Istanbul Airport

Explore weekly flight availability from Sofia to Istanbul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from SOF to IST are scheduled on a Monday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

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 June 12, 2025.
Get a feel of what it's like to fly with Aegean Airlines, LOT and Sky Express 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
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

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
8.2
Very good
759 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

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
1,077 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

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
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

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
3,848 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Wizz Air
6.8
Okay
1,058 reviews
Aegean Airlines
8.2
Very good
759 reviews

Boarding

7.8

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.2

Entertainment

7.0

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 8 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 $166, 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 Aegean Airlines and Air Serbia - these airlines can fly you to your destination from $200 and $294, 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 $89. Users have also found prices from $102 and $108 on Aegean Airlines and Sky Express, 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 Egyptair (79%), Royal Jordanian (79%) or Singapore Airlines (79%) 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 $143. On average you can expect to pay $1,521. The most popular route, (Sofia - Istanbul), can usually be booked for $249.

  • 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 $1,374). 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

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Yalova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest$85Average$117FlexibilityNo cancel feeOn-time82%
Turkish AirlinesCheapest$154Average$246FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.