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

British Airways and United Airlines are the most popular carriers 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 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 August 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.

$323 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

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:25 pm - 6:40 pmPHL Philadelphia-SOF Sofia

20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$686Multiple Airlines

Sun, Oct 18 - Tue, Nov 3

3:25 pm - 6:40 pmPHL Philadelphia-SOF Sofia

20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

2:10 pm - 10:56 pmSOF Sofia-PHL Philadelphia

15h 46m2 stops Frankfurt am Main Toronto Pearson Intl

$686Air Canada

Sun, Oct 18 - Tue, Nov 3

3:25 pm - 6:40 pmPHL Philadelphia-SOF Sofia

20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

2:10 pm - 10:56 pmSOF Sofia-PHL Philadelphia

15h 46m2 stops Frankfurt am Main Toronto Pearson Intl

$691Multiple Airlines

Sun, Oct 18 - Tue, Nov 3

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

18h 35m1 stop London Heathrow

9:05 pm - 4:15 pmSOF Sofia-PHL Philadelphia

26h 10m1 stop London Heathrow

$706British Airways

Tue, Dec 1 - Wed, Feb 24

10:40 am - 12:10 pmPHL Philadelphia-SOF Sofia

18h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$707United Airlines

Sun, Oct 18 - Tue, Nov 3

5:40 pm - 6:10 pmPHL Philadelphia-SOF Sofia

17h 30m1 stop Frankfurt am Main

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

16h 40m1 stop Frankfurt am Main

$708Lufthansa

Sun, Oct 18 - Tue, Nov 3

5:40 pm - 6:10 pmPHL Philadelphia-SOF Sofia

17h 30m1 stop Frankfurt am Main

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

16h 40m1 stop Frankfurt am Main

$711Lufthansa

Sun, Oct 18 - Tue, Nov 3

9:15 am - 10:55 pmPHL Philadelphia-SOF Sofia

30h 40m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

2:10 pm - 10:56 pmSOF Sofia-PHL Philadelphia

15h 46m2 stops Frankfurt am Main Toronto Pearson Intl

$719United Airlines

Sun, Nov 29 - Thu, Feb 25

9:15 am - 10:55 pmPHL Philadelphia-SOF Sofia

30h 40m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

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

16h 56m2 stops Frankfurt am Main Toronto Pearson Intl

$719United Airlines

Mon, Nov 30 - Wed, Feb 24

5:40 pm - 6:05 pmPHL Philadelphia-SOF Sofia

17h 25m1 stop Frankfurt am Main

6:20 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 45m1 stop Frankfurt am Main

$742Lufthansa

Wed, Oct 7 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

7:40 pm - 6:40 pmPHL Philadelphia-SOF Sofia

16h 00m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 9:43 amSOF Sofia-PHL Philadelphia

34h 33m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$838United Airlines

Sat, Aug 29 - Tue, Sep 8

7:40 pm - 6:40 pmPHL Philadelphia-SOF Sofia

16h 00m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

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

32h 55m1 stop Frankfurt am Main

$848United Airlines

Sat, Aug 29 - Tue, Sep 8

10:30 am - 11:15 pmPHL Philadelphia-SOF Sofia

29h 45m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:20 am - 6:54 pmSOF Sofia-PHL Philadelphia

19h 34m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$898United Airlines

Sat, Aug 29 - Sat, Sep 5

7:40 pm - 6:40 pmPHL Philadelphia-SOF Sofia

16h 00m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 9:43 pmSOF Sofia-PHL Philadelphia

22h 33m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$899United Airlines

Sat, Aug 29 - Sun, Sep 6

5:40 pm - 1:15 pmPHL Philadelphia-SOF Sofia

12h 35m1 stop Frankfurt am Main

6:20 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 45m1 stop Frankfurt am Main

$1,049Lufthansa

Fri, Aug 28 - Wed, Sep 2

5:40 pm - 1:15 pmPHL Philadelphia-SOF Sofia

12h 35m1 stop Frankfurt am Main

6:40 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 25m1 stop Frankfurt am Main

$1,069Lufthansa

Fri, Aug 28 - Tue, Sep 8

5:40 pm - 1:15 pmPHL Philadelphia-SOF Sofia

12h 35m1 stop Frankfurt am Main

6:20 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 45m1 stop Frankfurt am Main

$1,179Lufthansa

Fri, Aug 28 - Mon, Sep 7

3:25 pm - 6:40 pmPHL Philadelphia-SOF Sofia

20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

2:10 pm - 9:34 pmSOF Sofia-PHL Philadelphia

38h 24m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,185Air Canada

Sat, Aug 29 - Fri, Sep 4

7:00 am - 12:10 pmPHL Philadelphia-SOF Sofia

46h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:10 am - 2:47 pmSOF Sofia-PHL Philadelphia

39h 37m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,276Air Canada

Fri, Aug 28 - Tue, Sep 8

7:00 am - 12:10 pmPHL Philadelphia-SOF Sofia

46h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:20 am - 2:49 pmSOF Sofia-PHL Philadelphia

15h 29m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,276Air Canada

Fri, Aug 28 - Fri, Sep 4

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British Airways flights from Philadelphia to Bulgaria

Our best British Airways deals on Philadelphia to Bulgaria flight tickets

British Airways

Nov 29

PHL6:35 pmPhiladelphia

14h 45m

1 stop

SOF4:20 pmSofia

Feb 22

SOF5:15 pmSofia

30h 00m

1 stop

PHL4:15 pmPhiladelphia

$706

British Airways

Nov 10

PHL6:35 pmPhiladelphia

18h 35m

1 stop

SOF8:10 pmSofia

Nov 15

SOF7:45 pmSofia

27h 30m

1 stop

PHL4:15 pmPhiladelphia

$756

British Airways

Nov 30

PHL9:50 pmPhiladelphia

39h 20m

2 stops

SOF8:10 pmSofia

Feb 22

SOF5:15 pmSofia

30h 00m

1 stop

PHL4:15 pmPhiladelphia

$770

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets

United Airlines

Oct 18

PHL10:40 amPhiladelphia

18h 30m

2 stops

SOF12:10 pmSofia

Nov 3

SOF6:25 amSofia

16h 40m

1 stop

PHL4:05 pmPhiladelphia

$707

United Airlines

Nov 29

PHL9:15 amPhiladelphia

30h 40m

2 stops

SOF10:55 pmSofia

Feb 25

SOF2:10 pmSofia

15h 46m

2 stops

PHL10:56 pmPhiladelphia

$719

United Airlines

Dec 1

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

Feb 24

SOF6:25 amSofia

16h 56m

2 stops

PHL4:21 pmPhiladelphia

$723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$686

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 11/3

2:10 pm-10:56 pm

2 stops15h 46m

$686

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 11/3

2:10 pm-10:56 pm

2 stops15h 46m

$691

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 12/1

6:35 pm-8:10 pm

1 stop18h 35m

Sofia

Wed 2/24

9:05 pm-4:15 pm

1 stop26h 10m

$706

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

10:40 am-12:10 pm

2 stops18h 30m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$707

Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

5:40 pm-6:10 pm

1 stop17h 30m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$708

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/18

5:40 pm-6:10 pm

1 stop17h 30m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$711

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 11/29

9:15 am-10:55 pm

2 stops30h 40m

Sofia

Thu 2/25

2:10 pm-10:56 pm

2 stops15h 46m

$719

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 11/30

9:15 am-10:55 pm

2 stops30h 40m

Sofia

Wed 2/24

6:25 am-4:21 pm

2 stops16h 56m

$719

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Wed 10/7

5:40 pm-6:05 pm

1 stop17h 25m

Sofia

Wed 10/14

6:20 am-4:05 pm

1 stop16h 45m

$742

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 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	$323
Fastest flight time	15h 05m
Direct flights	None

The best one-way flight to Bulgaria from Philadelphia in the past 72 hours is $323. The best round-trip flight deal from Philadelphia to Bulgaria found on momondo in the last 72 hours is $686.

The fastest flight from Philadelphia to Bulgaria takes 15h 05m

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 August 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 $497	Free Cancellation	Rating 6.8 8,222 reviews		Search Lufthansa flights
United Airlines	PriceFrom $540	Free Cancellation	Rating 7.4 10,131 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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Popular cities in Bulgaria

Flights to Sofiafrom $595

Flights to Varnafrom $701

Flights to Burgasfrom $794

Flights to Plovdivfrom $1,339

Cheap flights from Philadelphia to Bulgaria from $323

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 11/26. 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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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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.

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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