HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$41+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — SOF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bucharest 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.

Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/174:30 amOTP - SOF
1 stop22h 35mAir Serbia
Tue 12/234:00 pmSOF - OTP
1 stop23h 35mAir Serbia
Deal found 12/16$189
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/209:00 amOTP - SOF
1 stop8h 10mMultiple Airlines
Tue 12/2312:10 pmSOF - OTP
1 stop3h 45mMultiple Airlines
Deal found 12/16$210
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/192:20 pmOTP - SOF
1 stop11h 10mMultiple Airlines
Tue 12/239:45 amSOF - OTP
1 stop12h 15mMultiple Airlines
Deal found 12/16$223
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/174:30 amOTP - SOF
1 stop22h 35mMultiple Airlines
Mon 12/2212:30 pmSOF - OTP
Nonstop1h 05mMultiple Airlines
Deal found 12/16$228
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/197:00 pmOTP - SOF
Nonstop1h 15mTAROM
Mon 12/2212:30 pmSOF - OTP
Nonstop1h 05mTAROM
Deal found 12/16$232
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/192:20 pmOTP - SOF
1 stop11h 10mMultiple Airlines
Mon 12/229:25 pmSOF - OTP
1 stop12h 45mMultiple Airlines
Deal found 12/16$233
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Sun 12/2111:30 pmOTP - SOF
1 stop16h 40mMultiple Airlines
Tue 12/2310:05 amSOF - OTP
Nonstop1h 05mMultiple Airlines
Deal found 12/16$234
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/186:00 pmOTP - SOF
Nonstop1h 15mTAROM
Tue 12/2310:05 amSOF - OTP
Nonstop1h 05mTAROM
Deal found 12/16$249
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/197:00 pmOTP - SOF
Nonstop1h 15mMultiple Airlines
Sun 12/211:40 pmSOF - OTP
1 stop17h 10mMultiple Airlines
Deal found 12/16$256

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$81
(Mytrip)

One-way from

$41
(Kiwi.com)

Popular in

September

Cheapest in

November

Average price

$225

Good one-way deal

$119 or less
Provider with most accurate pricing for Bucharest (BUH)-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest (BUH)-Sofia flights.
Search Deals
From Bucharest (BUH) to Sofia
Search Deals
One-way flight from Bucharest (BUH) to Sofia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a one-way flight from Bucharest (BUH) to Sofia.
Search Deals

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 December 18, 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

Fri 1/30

11:40 pm-3:40 pm

1 stop16h 00m

Sofia

Fri 2/6

6:05 pm-12:10 am

2 stops30h 05m

$117

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Fri 1/16

6:00 am-6:00 pm

1 stop12h 00m

Sofia

Sun 1/18

11:05 pm-6:25 pm

2 stops19h 20m

$144

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Fri 1/16

1:20 pm-6:50 pm

1 stop5h 30m

Sofia

Sun 1/18

1:40 pm-5:20 pm

1 stop3h 40m

$145

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Thu 1/15

6:30 pm-10:40 am

2 stops16h 10m

Sofia

Sun 1/18

9:45 am-9:25 pm

2 stops11h 40m

$166

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Fri 2/6

4:30 am-3:30 pm

1 stop11h 00m

Sofia

Sun 2/8

4:00 pm-3:35 pm

1 stop23h 35m

$172

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Fri 1/9

4:30 am-3:30 pm

1 stop11h 00m

Sofia

Tue 1/13

4:00 pm-3:35 pm

1 stop23h 35m

$172

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Sun 1/11

4:05 pm-3:05 am

1 stop11h 00m

Sofia

Tue 1/13

4:00 pm-3:35 pm

1 stop23h 35m

$172

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Tue 1/13

4:05 pm-3:30 pm

1 stop23h 25m

Sofia

Sat 1/17

5:00 am-3:35 pm

1 stop10h 35m

$172

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Sun 1/11

4:30 am-3:30 pm

1 stop11h 00m

Sofia

Tue 1/13

4:00 pm-3:35 pm

1 stop23h 35m

$173

BucharestSofia

OTP - SOF

OTPSOF

Bucharest Otopeni Intl

Sun 1/11

4:30 am-3:30 pm

1 stop11h 00m

Sofia

Wed 1/14

4:00 pm-3:10 am

1 stop11h 10m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Bucharest 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 Bucharest to Sofia in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bucharest-Sofia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bucharest-Sofia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bucharest-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest-Sofia flights, Cheapflights users trust eDreams the most. eDreams 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 Bucharest-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 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, December is the cheapest month in which you can book a flight from Bucharest to Sofia (average of $102). Flying from Bucharest to Sofia in June is currently the most expensive (average of $304). 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 December 18, 2025.

When flying from Bucharest to Sofia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

How often are flights from Bucharest to Sofia delayed?

About 13% of weekly flights between Bucharest and Sofia have experienced delays in the past year, with the average delay time being 92 minutes.

What is the most punctual flight time for Bucharest to Sofia flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday 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 Bucharest to Sofia flights?

Over the last year, TAROM have had the lowest number of delays on this route, with just 9% of flights being delayed.

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 0 airlines. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

  • How long is the flight from Bucharest to Sofia?

    For as low as $172, Ryanair can have you in Sofia from Bucharest in 11h. There are 187 mi between Bucharest and Sofia. This flight may include one or multiple stops.

  • What are the most reliable airlines from Bucharest to Sofia?

    The top 3 most reliable airlines when flying from Bucharest to Sofia are ASL Airlines Belgium (100%), Bulgaria Air (87%) and TAROM (87%).

  • What are the cheapest flights from Bucharest to Sofia?

    On average you can expect to pay $129 for a flight from Bucharest to Sofia. The cheapest flight overall is $91 while the most popular route, (Bucharest Otopeni Intl - Sofia) is currently priced at $81.

  • 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, December is the cheapest month in which you can book a flight from Bucharest to Sofia (average of $102). Flying from Bucharest to Sofia in June is currently the most expensive (average of $304). 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

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

Complete your trip

Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
Sofia car rentals
Sofia Airport car rentals
Plovdiv Airport car rentals

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.