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$40+ Cheap flights from Bucharest (BUH) to Sofia (SOF)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — SOF
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Bucharest to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Bucharest (BUH) 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 August 1, 2025.

Round-trip from

$141
(Mytrip)

One-way from

$40
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$266

Good one-way deal

$170 or less
From Bucharest (BUH) to Sofia
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One-way flight from Bucharest (BUH) to Sofia
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Highest demand for flights based on searches. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a one-way flight from Bucharest (BUH) to Sofia.
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Find flight deals from Bucharest to Sofia

Cheapest flights from Bucharest to Sofia
Explore the most affordable flight options available from Bucharest to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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.
Tue 9/167:35 pmOTP - SOF
1 stop14h 55mMultiple Airlines
Mon 9/2911:30 amSOF - OTP
1 stop13h 20mMultiple Airlines
Deal found 7/30$141
This Mytrip deal was found by Cheapflights users on 7/30. 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 9/139:10 pmOTP - SOF
1 stop11h 35mRyanair
Sat 9/2010:25 pmSOF - OTP
1 stop16h 15mRyanair
Deal found 7/30$148
This Austrian Airlines deal was found by Cheapflights users on 7/31. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:05 pmOTP - SOF
1 stop26h 05mAustrian Airlines
Sat 9/612:25 pmSOF - OTP
1 stop11h 45mAustrian Airlines
Deal found 7/31$220
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Sat 8/24:05 pmOTP - SOF
1 stop23h 30mAir Serbia
Tue 8/54:05 pmSOF - OTP
1 stop23h 15mAir Serbia
Deal found 7/31$258
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:00 pmOTP - SOF
Nonstop1h 15mTAROM
Mon 8/251:00 pmSOF - OTP
Nonstop1h 05mTAROM
Deal found 7/31$274
This Turkish Airlines deal was found by Cheapflights users on 7/31. 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 8/219:50 pmOTP - SOF
1 stop10h 45mTurkish Airlines
Mon 8/259:15 pmSOF - OTP
1 stop10h 55mTurkish Airlines
Deal found 7/31$289
This SmartFares deal was found by Cheapflights users on 7/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:20 amOTP - SOF
Nonstop1h 15mBulgaria Air
Mon 9/291:00 pmSOF - OTP
Nonstop1h 05mBulgaria Air
Deal found 7/30$377

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bucharest 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 2,558,603 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Bucharest to Sofia that are best for you.

Fly from

Bucharest

Fly to

Sofia

Route

Depart

Return

Price

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 8/21

3:25 pm-9:20 pm

1 stop5h 55m

Sofia

Mon 8/25

1:00 pm-2:05 pm

Nonstop1h 05m

$266

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Wed 9/3

4:05 pm-3:35 pm

1 stop23h 30m

Sofia

Fri 9/5

4:05 pm-3:20 pm

1 stop23h 15m

$267

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 8/21

4:05 pm-3:20 pm

1 stop23h 15m

Sofia

Mon 8/25

12:25 pm-6:05 pm

1 stop5h 40m

$269

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 8/21

6:00 pm-7:15 pm

Nonstop1h 15m

Sofia

Mon 8/25

1:00 pm-2:05 pm

Nonstop1h 05m

$274

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 8/21

9:50 pm-8:35 am

1 stop10h 45m

Sofia

Mon 8/25

9:15 pm-8:10 am

1 stop10h 55m

$289

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Tue 9/16

8:20 am-9:35 am

Nonstop1h 15m

Sofia

Mon 9/29

1:00 pm-2:05 pm

Nonstop1h 05m

$377

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Wed 9/3

10:15 am-7:20 pm

2 stops33h 05m

Sofia

Fri 9/5

6:20 pm-5:50 pm

1 stop23h 30m

$837

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 8/21

4:05 pm-12:10 pm

2 stops44h 05m

Sofia

Mon 8/25

12:55 pm-3:20 pm

2 stops26h 25m

$853

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Tue 9/2

2:20 am-2:25 pm

1 stop12h 05m

Sofia

Sun 9/7

3:25 pm-2:45 pm

1 stop23h 20m

$1,057

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Fri 9/5

7:00 am-5:10 pm

2 stops10h 10m

Sofia

Sat 9/6

7:00 am-5:20 pm

1 stop10h 20m

$1,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 24 results
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Best time to book a flight from Bucharest to Sofia

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

What is the cheapest month to book a flight from Bucharest to Sofia?

Currently, November is the cheapest month in which you can book a flight from Bucharest to Sofia (average of $632). Flying from Bucharest to Sofia in June is currently the most expensive (average of $1,187). 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 BUH to SOF?

Find hourly flight availability from Bucharest 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 August 1, 2025.

It’s optimal to fly from Bucharest to Sofia in the morning. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Bucharest to Sofia?

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 August 1, 2025.
Get a feel of what it's like to fly with KLM, Austrian Airlines, and SWISS from Bucharest to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,383 reviews
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Austrian Airlines
7.6
Good
823 reviews
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,686 reviews
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Turkish Airlines
7.3
Good
3,933 reviews
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Ryanair
6.9
Okay
5,154 reviews
KLM
7.8
Good
1,383 reviews

Boarding

7.8

Entertainment

7.1

Food

7.3

Overall

7.8

Crew

8.4

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Bucharest to Sofia. 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 into for flights to Sofia from Bucharest?

    Most people fly into Sofia (SOF) if they book a flight to Sofia from Bucharest. On average, Sofia has 1 inbound flight from Bucharest per day from 1 airline. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

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

    Ryanair, at $148, was found to be the cheapest airline from Bucharest to Sofia.Alternate airlines to your destination round-trip include Austrian Airlines and Air Serbia. Ryanair is 46% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Bucharest to Sofia are Ryanair ($81), Air Serbia ($93), and Wizz Air ($95).

  • What are the cheapest flights from Bucharest to Sofia?

    On average you can expect to pay $170 for a flight from Bucharest to Sofia. The cheapest flight overall is $169 while the most popular route, (Bucharest Otopeni Intl - Sofia) is currently priced at $208.

  • Can I find deals for flights from Bucharest to Sofia that include hotel bookings?

    Yes. In addition to deals on Bucharest to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bucharest to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bucharest to Sofia.

  • Can I find deals for business class flights from Bucharest to Sofia?

    Yes. Cheapflights offers flight deals from Bucharest to Sofia 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 Bucharest to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Bucharest to Sofia (average of $632). Flying from Bucharest to Sofia in June is currently the most expensive (average of $1,187). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
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Top airline flying from Bucharest to Sofia

Discover the top airline that operate flights from Bucharest 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 2,558,603 searches. Data last updated August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAROMCheapest$236Average$311FlexibilityNo cancel feeOn-time86%

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