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 37% 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 September 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.

$544 Cheap Flights from Philadelphia to Bulgaria in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Bulgaria

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 pm - 8:10 pmPHL Philadelphia-SOF Sofia

18h 35m1 stop London Heathrow

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

30h 00m1 stop London Heathrow

$544British Airways

Tue, Jan 5 - Mon, Jan 11

6:00 pm - 8:10 pmPHL Philadelphia-SOF Sofia

19h 10m2 stops Boston Logan Intl London Heathrow

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

30h 00m1 stop London Heathrow

$548British Airways

Tue, Jan 5 - Mon, Jan 11

6:00 pm - 8:10 pmPHL Philadelphia-SOF Sofia

19h 10m2 stops Boston Logan Intl London Heathrow

5:15 pm - 7:10 pmSOF Sofia-PHL Philadelphia

32h 55m2 stops London Heathrow Boston Logan Intl

$558British Airways

Tue, Jan 5 - Mon, Jan 11

6:35 pm - 8:10 pmPHL Philadelphia-SOF Sofia

18h 35m1 stop London Heathrow

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

30h 00m1 stop London Heathrow

$561British Airways

Tue, Jan 5 - Mon, Jan 11

6:15 am - 1:15 pmPHL Philadelphia-SOF Sofia

25h 00m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:55 am - 11:31 pmSOF Sofia-PHL Philadelphia

22h 36m2 stops Vienna Intl Washington, D.C. Dulles Intl

$598United Airlines

Tue, Oct 27 - Tue, Nov 3

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

17h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$599United Airlines

Tue, Oct 27 - Tue, Nov 3

6:40 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

$606Lufthansa

Tue, Oct 27 - Tue, Nov 3

10:15 am - 11:50 amPHL Philadelphia-SOF Sofia

18h 35m2 stops Washington, D.C. Dulles Intl Vienna Intl

7:55 am - 1:51 pmSOF Sofia-PHL Philadelphia

36h 56m2 stops Vienna Intl Washington, D.C. Dulles Intl

$612United Airlines

Wed, Jan 6 - Tue, Jan 12

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

$620Lufthansa

Tue, Jan 5 - Tue, Jan 12

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

$620Lufthansa

Tue, Jan 5 - Thu, Jan 14

Cheap last minute flights

Enter your travel dates to find the best prices.

7:40 pm - 12:10 pmPHL Philadelphia-SOF Sofia

33h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 9:33 amSOF Sofia-PHL Philadelphia

34h 23m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

$825United Airlines

Sat, Sep 19 - Sat, Oct 3

5:40 pm - 10:40 pmPHL Philadelphia-SOF Sofia

22h 00m1 stop Frankfurt am Main

4:05 pm - 11:30 pmSOF Sofia-PHL Philadelphia

38h 25m2 stops Vienna Intl Washington, D.C. Dulles Intl

$934Multiple Airlines

Thu, Sep 17 - Sat, Sep 26

7:40 pm - 10:40 pmPHL Philadelphia-SOF Sofia

20h 00m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

4:05 pm - 11:30 pmSOF Sofia-PHL Philadelphia

38h 25m2 stops Vienna Intl Washington, D.C. Dulles Intl

$938Multiple Airlines

Thu, Sep 17 - Sat, Sep 26

5:40 pm - 6:25 pmPHL Philadelphia-SOF Sofia

17h 45m1 stop Frankfurt am Main

7:25 pm - 4:05 pmSOF Sofia-PHL Philadelphia

51h 40m2 stops Munich Franz Josef Strauss Frankfurt am Main

$972Lufthansa

Thu, Sep 17 - Sun, Sep 27

10:05 am - 6:25 pmPHL Philadelphia-SOF Sofia

25h 20m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

7:25 pm - 4:05 pmSOF Sofia-PHL Philadelphia

51h 40m2 stops Munich Franz Josef Strauss Frankfurt am Main

$975Multiple Airlines

Thu, Sep 17 - Sun, Sep 27

4:20 pm - 12:10 pmPHL Philadelphia-SOF Sofia

36h 50m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

1:45 pm - 4:05 pmSOF Sofia-PHL Philadelphia

57h 20m2 stops Zurich Frankfurt am Main

$996Multiple Airlines

Sat, Sep 19 - Sat, Oct 3

7:40 pm - 11:40 amPHL Philadelphia-SOF Sofia

33h 00m2 stops Washington, D.C. Dulles Intl Vienna Intl

6:20 am - 6:42 pmSOF Sofia-PHL Philadelphia

19h 22m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$1,038United Airlines

Sat, Sep 19 - Sat, Oct 3

7:40 pm - 12:10 pmPHL Philadelphia-SOF Sofia

33h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:20 am - 6:42 pmSOF Sofia-PHL Philadelphia

19h 22m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$1,097United Airlines

Sat, Sep 19 - Sat, Oct 3

7:40 pm - 11:40 amPHL Philadelphia-SOF Sofia

33h 00m2 stops Washington, D.C. Dulles Intl Vienna Intl

1:55 pm - 4:05 pmSOF Sofia-PHL Philadelphia

33h 10m1 stop Frankfurt am Main

$1,254United Airlines

Sat, Sep 19 - Sat, Oct 3

4:20 pm - 12:10 pmPHL Philadelphia-SOF Sofia

36h 50m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

1:55 pm - 4:05 pmSOF Sofia-PHL Philadelphia

33h 10m1 stop Frankfurt am Main

$1,565Lufthansa

Sat, Sep 19 - Sat, Oct 3

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British Airways flights from Philadelphia to Bulgaria

Our best British Airways deals on Philadelphia to Bulgaria flight tickets

British Airways

Jan 5

PHL6:35 pmPhiladelphia

18h 35m

1 stop

SOF8:10 pmSofia

Jan 11

SOF5:15 pmSofia

30h 00m

1 stop

PHL4:15 pmPhiladelphia

$544

British Airways

Jan 5

PHL6:00 pmPhiladelphia

19h 10m

2 stops

SOF8:10 pmSofia

Jan 11

SOF5:15 pmSofia

30h 00m

1 stop

PHL4:15 pmPhiladelphia

$548

British Airways

Jan 5

PHL6:00 pmPhiladelphia

19h 10m

2 stops

SOF8:10 pmSofia

Jan 11

SOF5:15 pmSofia

32h 55m

2 stops

PHL7:10 pmPhiladelphia

$558

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets

United Airlines

Oct 27

PHL6:15 amPhiladelphia

25h 00m

2 stops

SOF1:15 pmSofia

Nov 3

SOF7:55 amSofia

22h 36m

2 stops

PHL11:31 pmPhiladelphia

$598

United Airlines

Oct 27

PHL1:20 pmPhiladelphia

17h 55m

2 stops

SOF1:15 pmSofia

Nov 3

SOF6:25 amSofia

16h 40m

1 stop

PHL4:05 pmPhiladelphia

$599

United Airlines

Jan 6

PHL10:15 amPhiladelphia

18h 35m

2 stops

SOF11:50 amSofia

Jan 12

SOF7:55 amSofia

36h 56m

2 stops

PHL1:51 pmPhiladelphia

$612

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

6:35 pm-8:10 pm

1 stop18h 35m

Sofia

Mon 1/11

5:15 pm-4:15 pm

1 stop30h 00m

$544

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

6:00 pm-8:10 pm

2 stops19h 10m

Sofia

Mon 1/11

5:15 pm-4:15 pm

1 stop30h 00m

$548

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

6:00 pm-8:10 pm

2 stops19h 10m

Sofia

Mon 1/11

5:15 pm-7:10 pm

2 stops32h 55m

$558

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

6:35 pm-8:10 pm

1 stop18h 35m

Sofia

Mon 1/11

5:15 pm-4:15 pm

1 stop30h 00m

$561

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/27

6:15 am-1:15 pm

2 stops25h 00m

Sofia

Tue 11/3

7:55 am-11:31 pm

2 stops22h 36m

$598

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/27

1:20 pm-1:15 pm

2 stops17h 55m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$599

Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/27

6:40 pm-1:25 pm

1 stop12h 45m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$606

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Wed 1/6

10:15 am-11:50 am

2 stops18h 35m

Sofia

Tue 1/12

7:55 am-1:51 pm

2 stops36h 56m

$612

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Tue 1/12

6:25 am-4:05 pm

1 stop16h 40m

$620

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 1/5

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Thu 1/14

6:25 am-4:05 pm

1 stop16h 40m

$620

Flights are sorted by cheapest round-trip flights first.

Sorted 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 November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $546.

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	$544
Fastest flight time	12h 45m
Direct flights	None

The best flight deal from Philadelphia to Bulgaria found on momondo in the last 72 hours is $544

The fastest flight from Philadelphia to Bulgaria takes 12h 45m

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 September 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
Lufthansa	PriceFrom $511	Free Cancellation	Rating 6.8 8,222 reviews		Search Lufthansa flights
United Airlines	PriceFrom $540	Free Cancellation	Rating 7.4 10,214 reviews		Search United Airlines 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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Feeling lucky

Popular cities in Bulgaria

Flights to Sofiafrom $522

Flights to Varnafrom $701

Flights to Burgasfrom $847

Flights to Plovdivfrom $912

Cheap flights from Philadelphia to Bulgaria from $544

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Bulgaria departing on 1/5. 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

Big names and deals

Filter for what you want

Filter for what you want

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British Airways flights from Philadelphia to Bulgaria

Our best British Airways deals on Philadelphia to Bulgaria flight tickets

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines 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 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