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.

How often are flights from Bucharest to Sofia delayed?

About 11% of weekly flights between Bucharest and Sofia have experienced delays in the past year, with the average delay time being 102 minutes.

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

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

Which airline has the best punctuality record on Bucharest to Sofia flights?

Over the past year, Aruba Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.

How long is the flight from Bucharest Otopeni Intl Airport to Sofia?

Airlines like Air Serbia fly from Bucharest Otopeni Intl Airport to Sofia in about 11h. The time it takes to get you to your destination can typically vary by up to . Bucharest Otopeni Intl Airport and Sofia are separated by a distance of 187 mi.

In terms of precipitation, rainfall in Sofia ranges from 30.0 - 70.0 inches per month. June is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Sofia when rainfall is around 30.0 mm.

If weather is an important factor for your trip to Sofia, 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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What are the most reliable airlines from Bucharest Otopeni Intl Airport to Sofia?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Bucharest Otopeni Intl Airport to Sofia on time: Air France (86%), Bulgaria Air (84%), TAROM (84%).

What airport do you fly into for flights to Sofia from Bucharest Otopeni Intl?

Located just 4.2 mi from the city center, Sofia is the airport most travelers will use when flying to Sofia from Bucharest Otopeni Intl. Booking flights from Bucharest Otopeni Intl to Sofia (SOF) should be relatively easy as there are 0 daily inbound flights from Bucharest Otopeni Intl from 0 different airlines.

Can I find deals for flights from Otopeni Intl to Sofia that include hotel bookings?

Yes. In addition to deals on Otopeni Intl to Sofia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Otopeni Intl to Sofia?

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

Can I find deals for business class flights from Otopeni Intl to Sofia?

Yes. Cheapflights offers flight deals from Otopeni Intl 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.

£69+ Cheap Flights from Bucharest Otopeni Intl Airport to Sofia

Cheap flight deals from Otopeni Intl to Sofia

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Otopeni Intl to Sofia
Explore the most affordable flight options available from Otopeni Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Sat 17/1004:30 -

1 stop11h 00m

Mon 19/1016:00 -

1 stop23h 20m

Deal found 15/9£123

Tue 22/922:00 -

2 stops15h 50m

Tue 29/923:45 -

1 stop13h 35m

Deal found 15/9£145

Tue 22/908:20 -

Nonstop1h 15m

Tue 29/923:45 -

1 stop13h 35m

Deal found 15/9£159

Wed 7/1016:05 -

1 stop23h 25m

Sun 11/1016:00 -

1 stop11h 05m

Deal found 11/9£184

Tue 6/1008:20 -

Nonstop1h 15m

Sat 10/1010:05 -

Nonstop1h 05m

Deal found 14/9£204

Tue 22/908:20 -

Nonstop1h 15m

Tue 29/912:45 -

Nonstop1h 05m

Deal found 15/9£236

Mon 14/921:40 -

1 stop17h 20m

Wed 16/915:50 -

1 stop19h 25m

Deal found 14/9£361

Sat 17/1020:00 -

1 stop24h 10m

Mon 19/1020:10 -

1 stop29h 10m

Deal found 15/9£380

Find flight deals from Otopeni Intl to Sofia

Round-trip from	£123
One-way from	£69
Popular in	September
Cheapest in	December
Average price	£255
Good one-way deal	£264 or less

Air Serbia
17/10-19/10
2 total stops
34h 20m total
Bucharest to Sofia

Search Deals

Air Serbia
24/9-31/12
1 total stop
22h 30m total
Bucharest to Sofia

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£20 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a one-way flight from Bucharest Otopeni Intl to Sofia.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Thu 24/9

04:30-03:00

1 stop22h 30m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Fastest return journey

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Wed 30/9

08:35-09:35

Nonstop1h 00m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£88

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Sat 17/10

04:30-15:30

1 stop11h 00m

Sofia

Mon 19/10

16:00-15:20

1 stop23h 20m

£123

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Wed 7/10

16:05-15:30

1 stop23h 25m

Sofia

Sun 11/10

16:00-03:05

1 stop11h 05m

£184

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Tue 6/10

08:20-09:35

Nonstop1h 15m

Sofia

Sat 10/10

10:05-11:10

Nonstop1h 05m

£204

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Mon 14/12

10:45-12:00

Nonstop1h 15m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£264

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Thu 24/12

18:15-19:30

Nonstop1h 15m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£264

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Mon 21/12

10:45-12:00

Nonstop1h 15m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£264

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Tue 22/12

09:35-10:50

Nonstop1h 15m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£264

BucharestSofia

OTP Bucharest Otopeni Intl - SOF Sofia

OTPSOF

Bucharest Otopeni Intl

Thu 10/12

18:15-19:30

Nonstop1h 15m

Sofia

Wed 31/12

00:00-00:00

Nonstop0h 00m

£264

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Otopeni Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Otopeni Intl with our price prediction graph.

OTP-SOF

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 Bucharest Otopeni Intl Airport to Sofia

Prices

Delays

What is the cheapest time of day to fly from OTP to SOF?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bucharest Otopeni Intl Airport to Sofia as you normally would.

Related info for your journey

What airport do you fly into for flights to Sofia from Bucharest Otopeni Intl?
Located just 4.2 mi from the city center, Sofia is the airport most travelers will use when flying to Sofia from Bucharest Otopeni Intl. Booking flights from Bucharest Otopeni Intl to Sofia (SOF) should be relatively easy as there are 0 daily inbound flights from Bucharest Otopeni Intl from 0 different airlines.
How long is the flight from Bucharest Otopeni Intl Airport to Sofia?
Airlines like Air Serbia fly from Bucharest Otopeni Intl Airport to Sofia in about 11h. The time it takes to get you to your destination can typically vary by up to . Bucharest Otopeni Intl Airport and Sofia are separated by a distance of 187 mi.
What are the most reliable airlines from Bucharest Otopeni Intl Airport to Sofia?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Bucharest Otopeni Intl Airport to Sofia on time: Air France (86%), Bulgaria Air (84%), TAROM (84%).
Can I find deals for flights from Otopeni Intl to Sofia that include hotel bookings?
Yes. In addition to deals on Otopeni Intl to Sofia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Otopeni Intl to Sofia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Otopeni Intl to Sofia.
Can I find deals for business class flights from Otopeni Intl to Sofia?
Yes. Cheapflights offers flight deals from Otopeni Intl 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.

See more FAQs

Velingrad

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Direct flights to Bulgaria

Flights by cabin class

Other flight options

Other flights from Otopeni Intl

Popular flights

Sofia flight routes

Complete your trip

Sofia car hire

Sofia Airport car hire

Plovdiv Airport car hire

Fly with Cheapflights

How does Cheapflights help users find flights from Otopeni Intl to Sofia?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sofia from Otopeni Intl today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Otopeni Intl to Sofia for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Otopeni Intl to Sofia with no change fees.

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

Of course! You can now track prices for flights from Otopeni Intl to Sofia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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.

Cheap flights from Bucharest Otopeni Intl Airport to Sofia from £69

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Otopeni Intl to Sofia

Cheapest flights from Otopeni Intl to SofiaExplore the most affordable flight options available from Otopeni Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Explore the most affordable flight options available from Otopeni Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Otopeni Intl to SofiaDiscover carefully curated flight deals from Otopeni Intl to Sofia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Discover carefully curated flight deals from Otopeni Intl to Sofia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Direct flights from Otopeni Intl to SofiaExplore direct flight options from Otopeni Intl to Sofia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.

Explore direct flight options from Otopeni Intl to Sofia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.

Last-minute flights from Otopeni Intl to SofiaDiscover last-minute flight deals from Otopeni Intl to Sofia. Data last updated 15 September 2026 and is based on user searches.

Discover last-minute flight deals from Otopeni Intl to Sofia. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Otopeni Intl to SofiaSearch for one-way flight options from Otopeni Intl to Sofia. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Search for one-way flight options from Otopeni Intl to Sofia. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Find flight deals from Otopeni Intl to Sofia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Sofia that are best for you.

Best time to book a flight from Otopeni Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Otopeni Intl with our price prediction graph.

Cheapflights Insights

What is the cheapest time of day to fly from OTP to SOF?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bucharest Otopeni Intl Airport to Sofia as you normally would.

How often are flights from Bucharest to Sofia delayed?

About 11% of weekly flights between Bucharest and Sofia have experienced delays in the past year, with the average delay time being 102 minutes.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening 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 past year, Aruba Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Sofia from Bucharest Otopeni Intl?

How long is the flight from Bucharest Otopeni Intl Airport to Sofia?

What are the most reliable airlines from Bucharest Otopeni Intl Airport to Sofia?

Can I find deals for flights from Otopeni Intl to Sofia that include hotel bookings?

How can I find direct flights from Otopeni Intl to Sofia?

Can I find deals for business class flights from Otopeni Intl to Sofia?

Travelling to a place near Sofia?

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 hire and/or hotel booking to your travel itinerary.

Direct flights to Bulgaria

Book a non-stop flight to one of these other cities located in Bulgaria.

Search flights from Otopeni Intl to Sofia by cabin class

Find flights from Otopeni Intl to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Otopeni Intl and Sofia flights

Browse other Otopeni Intl and Sofia flight options. Last updated on 15 September 2026.

Other flights from Otopeni Intl

Browse through other flights departing from Otopeni Intl. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Sofia

Explore flights to Sofia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from Otopeni Intl to Sofia?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Otopeni Intl to Sofia
Explore the most affordable flight options available from Otopeni Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Otopeni Intl to Sofia
Discover carefully curated flight deals from Otopeni Intl to Sofia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Direct flights from Otopeni Intl to Sofia
Explore direct flight options from Otopeni Intl to Sofia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.

Last-minute flights from Otopeni Intl to Sofia
Discover last-minute flight deals from Otopeni Intl to Sofia. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Otopeni Intl to Sofia
Search for one-way flight options from Otopeni Intl to Sofia. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.