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Cheap flights from Sofia to Istanbul Airport from £69

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IST
5 May — 12 May1
1 adult

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 Saturday 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 30 April 2025.

Round-trip from

£128

One-way from

£69

Popular in

November

Cheapest in

March

Average price

£165

Good round-trip deal

£118 or less

Good one-way deal

£179 or less
Turkish Airlines
  • Turkish Airlines
  • 15/5-18/5
  • Nonstop
  • 3h 00m total
  • Sofia to Istanbul
Turkish Airlines
  • Turkish Airlines
  • 14/5
  • Nonstop
  • 1h 35m total
  • Sofia to Istanbul
Highest demand for flights based on searches. 10% potential increase in price (£10 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Sofia to Istanbul.
Price to beat on a one-way flight from Sofia to Istanbul.

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 30 April 2025.

Thu 15/515:35SOF - IST
Nonstop1h 35mTurkish Airlines
Sun 18/513:20IST - SOF
Nonstop1h 25mTurkish Airlines
Deal found 29/4£128
Wed 11/615:35SOF - IST
Nonstop1h 35mMultiple Airlines
Thu 12/609:10IST - SOF
1 stop7h 20mMultiple Airlines
Deal found 29/4£139
Wed 11/616:00SOF - IST
1 stop10h 20mAegean Airlines
Thu 12/604:35IST - SOF
1 stop9h 55mAegean Airlines
Deal found 29/4£165
Tue 18/1105:00SOF - IST
1 stop10h 50mAir Serbia
Wed 19/1116:40IST - SOF
1 stop11h 20mAir Serbia
Deal found 29/4£169
Fri 14/1114:15SOF - IST
1 stop7h 30mLufthansa
Mon 24/1119:00IST - SOF
2 stops19h 00mLufthansa
Deal found 29/4£204
Fri 14/1119:45SOF - IST
1 stop14h 05mTAROM
Tue 18/1100:15IST - SOF
1 stop20h 00mTAROM
Deal found 29/4£307

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 30 April 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 15/5

15:35-17:10

Nonstop1h 35m

Istanbul

Sun 18/5

13:20-14:45

Nonstop1h 25m

£128

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 11/6

15:35-17:10

Nonstop1h 35m

Istanbul

Thu 12/6

09:10-16:30

1 stop7h 20m

£139

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 11/6

16:00-02:20

1 stop10h 20m

Istanbul

Thu 12/6

04:35-14:30

1 stop9h 55m

£165

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 6/6

13:50-21:20

1 stop7h 30m

Istanbul

Mon 9/6

14:00-22:50

1 stop8h 50m

£210

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 14/5

15:35-17:10

Nonstop1h 35m

£69

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 22/5

05:00-03:30

1 stop22h 30m

£103

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Tue 6/5

15:20-02:20

1 stop11h 00m

£151

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 9/5

06:00-21:20

2 stops39h 20m

£183

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 return 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 return flight from Sofia to Istanbul. Price data was last updated on 25 April 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, January is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £159). Flying from Sofia to Istanbul Airport in August is currently the most expensive (average of £366). 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 30 April 2025.

It’s typically best to fly out from Sofia to Istanbul Airport at midday. Doing so could potentially save you 86% on the flight price compared to flying in the evening, which is usually more expensive.

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 10.0 - 100.0 inches per month. December is typically the wettest month, when rainfall can reach 100.0 mm. July is typically the driest time to visit Istanbul Airport when rainfall is around 10.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 30 April 2025.
See what other customers who have flown with Aegean Airlines, Turkish Airlines and Lufthansa from Sofia to Istanbul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Overall

8.1

Food

7.3

Entertainment

6.9

Boarding

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Crew

8.6

Overall

8.1

Food

7.3

Entertainment

6.9

Boarding

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Crew

8.6

Overall

8.1

Food

7.3

Entertainment

6.9

Boarding

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Crew

8.6

Overall

8.1

Food

7.3

Entertainment

6.9

Boarding

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

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

Crew

8.6

Overall

8.1

Food

7.3

Entertainment

6.9

Boarding

7.8

Comfort

7.8

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?

    Sofia (SOF) is the airport you will fly out of if you book a flight from Sofia to Istanbul. You should not have trouble finding flights to Istanbul from Sofia; the airport handles an average of 4 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sofia airport to Istanbul. It is only a 4.2 mi journey to Sofia (SOF) from Sofia’s city center.

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

    Currently priced at £128, 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 Lufthansa - these airlines can fly you to your destination from £165 and £210, respectively.

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

    £69 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Air Serbia and Aegean Airlines, with prices starting from £103 and £151, respectively.

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

    The top 3 most reliable airlines when flying from Sofia to Istanbul Airport are Turkish Airlines (80%), IndiGo (79%) and Royal Jordanian (77%).

  • 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 £469. The most popular route, (Sofia - Istanbul), can usually be booked for £185.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £159). Flying from Sofia to Istanbul Airport in August is currently the most expensive (average of £366). 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

Travelling to a place near Sofia?

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

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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 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£42Average£72FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Turkish AirlinesCheapest£108Average£184FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sofia to Istanbul?

Cheapflights makes it easy to find Sofia to Istanbul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sofia to Istanbul?

Cheapflights simply makes it quick and affordable to book flights from Sofia to Istanbul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sofia to Istanbul with no change fees?

Yes, we can. To see specific flights from Sofia to Istanbul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sofia to Istanbul become cheaper?

Yes, Cheapflights offers price alerts on Sofia to Istanbul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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