What is the cheapest airline that flies from Philadelphia to Bulgaria?

British Airways is the most popular carrier operating from Philadelphia to Bulgaria

What airlines fly to Bulgaria?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Bulgaria from Philadelphia according to our data. Lufthansa is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Bulgaria. Keep in mind that there are 11 different airlines that fly to Bulgaria on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Bulgaria?

Prices for flights from Philadelphia Airport to Bulgaria are updated daily.

How many operators does momondo search for flights from Philadelphia Airport to Bulgaria?

As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Bulgaria.

How old do you have to be to fly from Philadelphia Airport to Bulgaria?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Bulgaria.

What documentation or ID do you need to fly to Bulgaria?

The travel and health documents you'll need for your trip to Bulgaria may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bulgaria. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$361 Cheap Flights from Philadelphia to Bulgaria in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Bulgaria

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 1:15 pmPHL Philadelphia-SOF Sofia

14h 55m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

2:00 pm - 10:46 pmSOF Sofia-PHL Philadelphia

39h 46m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$707Multiple Airlines

Mon, Feb 1 - Mon, Feb 15

3:20 pm - 2:15 pmPHL Philadelphia-SOF Sofia

39h 55m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

6:25 am - 4:21 pmSOF Sofia-PHL Philadelphia

40h 56m2 stops Frankfurt am Main Toronto Pearson Intl

$707Multiple Airlines

Sat, Feb 20 - Fri, Feb 26

7:45 pm - 8:10 pmPHL Philadelphia-SOF Sofia

41h 25m2 stops Boston Logan Intl London Heathrow

5:15 pm - 4:15 pmSOF Sofia-PHL Philadelphia

30h 00m1 stop London Heathrow

$712British Airways

Mon, Feb 1 - Mon, Feb 15

1:00 pm - 12:20 pmPHL Philadelphia-SOF Sofia

16h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:20 am - 4:00 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

$723United Airlines

Tue, Apr 20 - Thu, Apr 22

10:15 am - 12:20 pmPHL Philadelphia-SOF Sofia

19h 05m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:20 am - 2:41 pmSOF Sofia-PHL Philadelphia

15h 21m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$726United Airlines

Tue, Apr 20 - Thu, Apr 22

3:20 pm - 6:45 pmPHL Philadelphia-SOF Sofia

20h 25m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

1:05 pm - 2:41 pmSOF Sofia-PHL Philadelphia

32h 36m2 stops Munich Franz Josef Strauss Montreal Pierre Elliott Trudeau Intl

$727Air Canada

Tue, Apr 20 - Thu, Apr 22

1:19 pm - 10:55 pmPHL Philadelphia-SOF Sofia

26h 36m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:00 pm - 10:46 pmSOF Sofia-PHL Philadelphia

39h 46m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$730United Airlines

Mon, Feb 1 - Mon, Feb 15

1:00 pm - 12:20 pmPHL Philadelphia-SOF Sofia

16h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:20 am - 4:00 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

$733United Airlines

Tue, Apr 20 - Thu, Apr 22

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

$763Lufthansa

Sun, Dec 13 - Sun, Dec 20

5:35 pm - 6:15 pmPHL Philadelphia-SOF Sofia

17h 40m1 stop Frankfurt am Main

7:00 pm - 4:00 pmSOF Sofia-PHL Philadelphia

28h 00m1 stop Frankfurt am Main

$793Lufthansa

Mon, Apr 5 - Mon, May 17

Cheap last minute flights

Enter your travel dates to find the best prices.

6:46 pm - 11:00 pmPHL Philadelphia-SOF Sofia

46h 14m2 stops Chicago O'Hare Intl Frankfurt am Main

7:55 am - 4:05 pmSOF Sofia-PHL Philadelphia

39h 10m2 stops Vienna Intl Frankfurt am Main

$757United Airlines

Sat, Oct 31 - Mon, Nov 9

6:46 pm - 11:00 pmPHL Philadelphia-SOF Sofia

46h 14m2 stops Chicago O'Hare Intl Frankfurt am Main

2:10 pm - 4:05 pmSOF Sofia-PHL Philadelphia

32h 55m1 stop Frankfurt am Main

$762United Airlines

Sat, Oct 31 - Mon, Nov 9

9:45 am - 11:00 pmPHL Philadelphia-SOF Sofia

30h 15m2 stops Chicago O'Hare Intl Frankfurt am Main

2:00 pm - 4:21 pmSOF Sofia-PHL Philadelphia

57h 21m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$796United Airlines

Sun, Nov 1 - Sat, Nov 7

10:54 am - 11:00 pmPHL Philadelphia-SOF Sofia

29h 06m2 stops Chicago O'Hare Intl Frankfurt am Main

2:10 pm - 4:05 pmSOF Sofia-PHL Philadelphia

32h 55m1 stop Frankfurt am Main

$807United Airlines

Sun, Nov 1 - Sat, Nov 7

5:40 pm - 11:00 pmPHL Philadelphia-SOF Sofia

22h 20m1 stop Frankfurt am Main

2:10 pm - 4:05 pmSOF Sofia-PHL Philadelphia

32h 55m1 stop Frankfurt am Main

$856Lufthansa

Sun, Nov 1 - Sat, Nov 7

7:25 pm - 7:40 pmPHL Philadelphia-SOF Sofia

18h 15m1 stop Zurich

5:15 pm - 4:15 pmSOF Sofia-PHL Philadelphia

30h 00m1 stop London Heathrow

$1,181Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

5:40 pm - 11:55 pmPHL Philadelphia-SOF Sofia

23h 15m2 stops Frankfurt am Main Vienna Intl

11:15 am - 2:50 pmSOF Sofia-PHL Philadelphia

34h 35m3 stops Athens Eleftherios V. Cairo Doha Hamad Intl

$1,291Multiple Airlines

Sun, Nov 1 - Sat, Nov 7

5:40 pm - 1:55 amPHL Philadelphia-SOF Sofia

25h 15m3 stops Frankfurt am Main Brussels Bruxelles-National Nice Côte d'Azur

11:15 am - 2:50 pmSOF Sofia-PHL Philadelphia

34h 35m3 stops Athens Eleftherios V. Cairo Doha Hamad Intl

$1,319Multiple Airlines

Sun, Nov 1 - Sat, Nov 7

9:15 am - 1:25 pmPHL Philadelphia-SOF Sofia

22h 10m2 stops Toronto Pearson Intl Frankfurt am Main

6:00 am - 4:21 pmSOF Sofia-PHL Philadelphia

17h 21m3 stops Munich Franz Josef Strauss Frankfurt am Main Toronto Pearson Intl

$1,376Air Canada

Sat, Oct 31 - Mon, Nov 9

5:05 pm - 11:55 pmPHL Philadelphia-SOF Sofia

24h 50m3 stops Toronto Pearson Intl London Heathrow Brussels Bruxelles-National

5:00 am - 4:10 pmSOF Sofia-PHL Philadelphia

18h 10m3 stops Belgrade Nikola Tesla Duesseldorf Intl Dublin

$2,269Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

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Austrian Airlines flights from Philadelphia to Bulgaria

Our best Austrian Airlines deals on Philadelphia to Bulgaria flight tickets

Austrian Airlines

Apr 5

PHL9:15 amPhiladelphia

23h 05m

2 stops

SOF3:20 pmSofia

May 17

SOF6:55 pmSofia

28h 05m

2 stops

PHL4:00 pmPhiladelphia

$779

Austrian Airlines

Dec 13

PHL5:40 pmPhiladelphia

23h 15m

2 stops

SOF11:55 pmSofia

Dec 20

SOF7:55 amSofia

15h 10m

2 stops

PHL4:05 pmPhiladelphia

$795

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets

Lufthansa

Dec 13

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

Dec 20

SOF6:25 amSofia

16h 40m

1 stop

PHL4:05 pmPhiladelphia

$763

Lufthansa

Apr 5

PHL5:35 pmPhiladelphia

17h 40m

1 stop

SOF6:15 pmSofia

May 17

SOF7:00 pmSofia

28h 00m

1 stop

PHL4:00 pmPhiladelphia

$793

Lufthansa

Nov 1

PHL5:40 pmPhiladelphia

22h 20m

1 stop

SOF11:00 pmSofia

Nov 7

SOF2:10 pmSofia

32h 55m

1 stop

PHL4:05 pmPhiladelphia

$856

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 2/1

3:20 pm-1:15 pm

2 stops14h 55m

Sofia

Mon 2/15

2:00 pm-10:46 pm

2 stops39h 46m

$707

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sat 2/20

3:20 pm-2:15 pm

2 stops39h 55m

Sofia

Fri 2/26

6:25 am-4:21 pm

2 stops40h 56m

$707

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 2/1

7:45 pm-8:10 pm

2 stops41h 25m

Sofia

Mon 2/15

5:15 pm-4:15 pm

1 stop30h 00m

$712

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 4/20

1:00 pm-12:20 pm

2 stops16h 20m

Sofia

Thu 4/22

6:20 am-4:00 pm

1 stop16h 40m

$723

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 4/20

10:15 am-12:20 pm

2 stops19h 05m

Sofia

Thu 4/22

6:20 am-2:41 pm

2 stops15h 21m

$726

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 4/20

3:20 pm-6:45 pm

2 stops20h 25m

Sofia

Thu 4/22

1:05 pm-2:41 pm

2 stops32h 36m

$727

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 2/1

1:19 pm-10:55 pm

2 stops26h 36m

Sofia

Mon 2/15

2:00 pm-10:46 pm

2 stops39h 46m

$730

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 4/20

1:00 pm-12:20 pm

2 stops16h 20m

Sofia

Thu 4/22

6:20 am-4:00 pm

1 stop16h 40m

$733

Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 12/13

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Sun 12/20

6:25 am-4:05 pm

1 stop16h 40m

$763

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 4/5

5:35 pm-6:15 pm

1 stop17h 40m

Sofia

Mon 5/17

7:00 pm-4:00 pm

1 stop28h 00m

$793

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Bulgaria

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Bulgaria?

If you aren’t able to travel to Bulgaria during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $653.

Can stopping save me money on Philadelphia to Bulgaria flights?

You could potentially save up to 40% on your flight if you consider stops on a Philadelphia to Bulgaria flight.

Cheap Philadelphia to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Bulgaria

Best Price Found	$361
Fastest flight time	14h 55m
Direct flights	None

The best one-way flight to Bulgaria from Philadelphia in the past 72 hours is $361. The best round-trip flight deal from Philadelphia to Bulgaria found on momondo in the last 72 hours is $707.

The fastest flight from Philadelphia to Bulgaria takes 14h 55m

There are no direct flights from Philadelphia to Bulgaria. There are no popular flight routes from Philadelphia to Bulgaria.

Search flight deals

Frequently asked questions about flying from Philadelphia to Bulgaria

When did momondo last update prices for flights from Philadelphia Airport to Bulgaria?
Prices for flights from Philadelphia Airport to Bulgaria are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Bulgaria?
As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Bulgaria.
How old do you have to be to fly from Philadelphia Airport to Bulgaria?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Bulgaria.
What documentation or ID do you need to fly to Bulgaria?
The travel and health documents you'll need for your trip to Bulgaria may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bulgaria. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Bulgaria

Compare and see reviews for airlines that fly from Philadelphia to Bulgaria with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $540	Free Cancellation	Rating 7.3 10,444 reviews		Search United Airlines flights
Lufthansa	PriceFrom $546	Free Cancellation	Rating 6.8 8,298 reviews		Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Bulgaria?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bulgaria from Philadelphia.

Can I find flights from Philadelphia to Bulgaria with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Bulgaria flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Bulgaria?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bulgaria from Philadelphia.

I’m not ready to book a flight from Philadelphia to Bulgaria right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bulgaria, momondo offers a useful price alert feature which will track prices for flights to Bulgaria from Philadelphia and alert you when they change.

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Bulgaria

Flights to Sofiafrom $525

Flights to Varnafrom $640

Flights to Burgasfrom $942

Flights to Plovdivfrom $929

Cheap flights from Philadelphia to Bulgaria from $361

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Bulgaria departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Philadelphia to Bulgaria

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Big names and deals

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Austrian Airlines flights from Philadelphia to Bulgaria

Our best Austrian Airlines deals on Philadelphia to Bulgaria flight tickets

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Bulgaria that are best for you.

See travel insights to Bulgaria from

How to get the cheapest flight ticket from Philadelphia to Bulgaria

What is the cheapest month to fly to Bulgaria?

Can stopping save me money on Philadelphia to Bulgaria flights?

What is the cheapest airline that flies from Philadelphia to Bulgaria?

What airlines fly to Bulgaria?

Cheap Philadelphia to Bulgaria flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Bulgaria

Best airlines flying from Philadelphia to Bulgaria

Compare and see reviews for airlines that fly from Philadelphia to Bulgaria with momondo

Why use momondo?

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo

Philadelphia flight routes

According to popular flight searches on momondo this year

Bulgaria flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Bulgaria

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bulgaria

List of cabin classes available on flights landing in Bulgaria. Availability may vary depending on flight origin and airline.

Complete your trip to Bulgaria

Explore popular destinations other users love

According to popular flight searches on momondo this year