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

Turkish Airlines and SWISS 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 36% 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.

$505 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.

6:35 pm - 4:20 pmPHL Philadelphia-SOF Sofia

14h 45m1 stop London Heathrow

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

30h 00m1 stop London Heathrow

$685British Airways

Sun, Nov 15 - Mon, Nov 23

4:25 pm - 4:20 pmPHL Philadelphia-SOF Sofia

16h 55m2 stops Boston Logan Intl London Heathrow

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

30h 00m1 stop London Heathrow

$689British Airways

Sun, Nov 15 - Mon, Nov 23

4:25 pm - 4:20 pmPHL Philadelphia-SOF Sofia

16h 55m2 stops Boston Logan Intl London Heathrow

5:15 pm - 7:18 pmSOF Sofia-PHL Philadelphia

33h 03m2 stops London Heathrow Miami

$699British Airways

Sun, Nov 15 - Mon, Nov 23

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

$706British Airways

Tue, Nov 17 - Mon, Nov 23

4:59 pm - 10:55 pmPHL Philadelphia-SOF Sofia

22h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$707United Airlines

Tue, Nov 17 - Tue, Nov 24

1:16 pm - 10:55 pmPHL Philadelphia-SOF Sofia

26h 39m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$707United Airlines

Mon, Nov 16 - Tue, Nov 24

10:54 am - 1:15 pmPHL Philadelphia-SOF Sofia

19h 21m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

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

16h 40m1 stop Frankfurt am Main

$707United Airlines

Sun, Nov 15 - Tue, Nov 24

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

$719Lufthansa

Tue, Nov 17 - Tue, Nov 24

5:40 pm - 6:00 pmPHL Philadelphia-SOF Sofia

17h 20m1 stop Frankfurt am Main

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$773Lufthansa

Mon, Sep 28 - Tue, Oct 20

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

12h 45m1 stop Frankfurt am Main

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

16h 45m1 stop Frankfurt am Main

$774Lufthansa

Mon, Sep 21 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

6:30 pm - 2:00 pmPHL Philadelphia-SOF Sofia

12h 30m1 stop Amsterdam Schiphol

9:25 pm - 12:10 pmSOF Sofia-PHL Philadelphia

21h 45m1 stop London Heathrow

$1,967Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

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

22h 00m1 stop Frankfurt am Main

6:10 am - 7:31 pmSOF Sofia-PHL Philadelphia

20h 21m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$2,383Lufthansa

Thu, Sep 3 - Wed, Sep 9

8:55 pm - 1:15 pmPHL Philadelphia-SOF Sofia

33h 20m2 stops Boston Logan Intl Frankfurt am Main

7:00 pm - 10:03 pmSOF Sofia-PHL Philadelphia

34h 03m2 stops Frankfurt am Main Boston Logan Intl

$5,430Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

6:30 pm - 2:00 pmPHL Philadelphia-SOF Sofia

12h 30m1 stop Amsterdam Schiphol

7:00 am - 1:05 pmSOF Sofia-PHL Philadelphia

13h 05m1 stop Amsterdam Schiphol

$5,562Multiple Airlines

Thu, Sep 3 - Thu, Sep 10

8:55 pm - 8:20 pmPHL Philadelphia-SOF Sofia

40h 25m2 stops Boston Logan Intl Istanbul

9:35 am - 9:31 amSOF Sofia-PHL Philadelphia

30h 56m2 stops Istanbul Boston Logan Intl

$6,255Multiple Airlines

Thu, Sep 3 - Thu, Sep 10

4:20 pm - 1:55 pmPHL Philadelphia-SOF Sofia

38h 35m2 stops Toronto Pearson Intl Warsaw Frederic Chopin

6:45 pm - 10:46 pmSOF Sofia-PHL Philadelphia

35h 01m2 stops Warsaw Frederic Chopin Toronto Pearson Intl

$6,786Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

9:28 am - 8:20 pmPHL Philadelphia-SOF Sofia

27h 52m2 stops Boston Logan Intl Istanbul

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

16h 45m1 stop Frankfurt am Main

$7,561Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

9:28 am - 8:20 pmPHL Philadelphia-SOF Sofia

27h 52m2 stops Boston Logan Intl Istanbul

6:30 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 35m1 stop Frankfurt am Main

$7,561Multiple Airlines

Thu, Sep 3 - Thu, Sep 10

4:20 pm - 1:55 pmPHL Philadelphia-SOF Sofia

38h 35m2 stops Toronto Pearson Intl Warsaw Frederic Chopin

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

16h 45m1 stop Frankfurt am Main

$8,048Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

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

22h 00m1 stop Frankfurt am Main

1:50 pm - 4:05 pmSOF Sofia-PHL Philadelphia

33h 15m1 stop Frankfurt am Main

$9,155Lufthansa

Thu, Sep 3 - Wed, Sep 9

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SWISS flights from Philadelphia to Bulgaria

Our best SWISS deals on Philadelphia to Bulgaria flight tickets

SWISS

Sep 8

PHL11:04 amPhiladelphia

18h 06m

3 stops

SOF12:10 pmSofia

Sep 29

SOF1:05 pmSofia

35h 49m

2 stops

PHL5:54 pmPhiladelphia

$774

SWISS

Sep 21

PHL11:04 amPhiladelphia

40h 16m

2 stops

SOF10:20 amSofia

Oct 14

SOF12:55 pmSofia

35h 59m

3 stops

PHL5:54 pmPhiladelphia

$803

SWISS

Sep 8

PHL11:04 amPhiladelphia

24h 36m

3 stops

SOF6:40 pmSofia

Sep 29

SOF12:55 pmSofia

35h 59m

3 stops

PHL5:54 pmPhiladelphia

$897

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets

Lufthansa

Nov 17

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

Nov 24

SOF6:25 amSofia

16h 40m

1 stop

PHL4:05 pmPhiladelphia

$719

Lufthansa

Sep 28

PHL5:40 pmPhiladelphia

17h 20m

1 stop

SOF6:00 pmSofia

Oct 20

SOF6:10 amSofia

16h 55m

1 stop

PHL4:05 pmPhiladelphia

$773

Lufthansa

Sep 21

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

Oct 14

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

$774

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 11/15

6:35 pm-4:20 pm

1 stop14h 45m

Sofia

Mon 11/23

5:15 pm-4:15 pm

1 stop30h 00m

$685

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 11/15

4:25 pm-4:20 pm

2 stops16h 55m

Sofia

Mon 11/23

5:15 pm-4:15 pm

1 stop30h 00m

$689

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 11/15

4:25 pm-4:20 pm

2 stops16h 55m

Sofia

Mon 11/23

5:15 pm-7:18 pm

2 stops33h 03m

$699

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 11/17

6:35 pm-8:10 pm

1 stop18h 35m

Sofia

Mon 11/23

5:15 pm-4:15 pm

1 stop30h 00m

$706

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 11/17

4:59 pm-10:55 pm

2 stops22h 56m

Sofia

Tue 11/24

6:25 am-4:05 pm

1 stop16h 40m

$707

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 11/16

1:16 pm-10:55 pm

2 stops26h 39m

Sofia

Tue 11/24

6:25 am-4:05 pm

1 stop16h 40m

$707

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 11/15

10:54 am-1:15 pm

2 stops19h 21m

Sofia

Tue 11/24

6:25 am-4:05 pm

1 stop16h 40m

$707

Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 11/17

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Tue 11/24

6:25 am-4:05 pm

1 stop16h 40m

$719

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 9/28

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Tue 10/20

6:10 am-4:05 pm

1 stop16h 55m

$773

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 9/21

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Wed 10/14

6:20 am-4:05 pm

1 stop16h 45m

$774

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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	$505
Fastest flight time	14h 02m
Direct flights	None

The best one-way flight to Bulgaria from Philadelphia in the past 72 hours is $505. The best round-trip flight deal from Philadelphia to Bulgaria found on momondo in the last 72 hours is $685.

The fastest flight from Philadelphia to Bulgaria takes 14h 02m

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 $497	Free Cancellation	Rating 6.8 8,232 reviews		Search Lufthansa flights
United Airlines	PriceFrom $540	Free Cancellation	Rating 7.4 10,157 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 $569

Flights to Varnafrom $696

Flights to Burgasfrom $849

Flights to Plovdivfrom $1,268

Cheap flights from Philadelphia to Bulgaria from $505

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 11/17. 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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SWISS flights from Philadelphia to Bulgaria

Our best SWISS 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