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Cheap flights from Philadelphia to Bulgaria from $375

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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:25 pm - 6:40 pmPHL  Philadelphia-SOF Sofia
20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:00 am - 10:56 pmSOF  Sofia-PHL Philadelphia
22h 56m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$727Multiple Airlines
Tue, Oct 13 - Wed, Oct 28
Multiple Airlines Logo
3:25 pm - 6:40 pmPHL  Philadelphia-SOF Sofia
20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:00 am - 10:56 pmSOF  Sofia-PHL Philadelphia
22h 56m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$731Multiple Airlines
Tue, Oct 13 - Tue, Oct 27
Multiple Airlines Logo
3:25 pm - 6:40 pmPHL  Philadelphia-SOF Sofia
20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:25 am - 5:05 pmSOF  Sofia-PHL Philadelphia
16h 40m1 stop Frankfurt am Main
$736Multiple Airlines
Tue, Oct 13 - Tue, Oct 27
Multiple Airlines Logo
3:25 pm - 6:40 pmPHL  Philadelphia-SOF Sofia
20h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
2:00 pm - 2:44 pmSOF  Sofia-PHL Philadelphia
30h 44m2 stops Munich Franz Josef Strauss Montreal Pierre Elliott Trudeau Intl
$740Multiple Airlines
Tue, Oct 13 - Wed, Oct 28
Lufthansa Logo
5:40 pm - 6:00 pmPHL  Philadelphia-SOF Sofia
17h 20m1 stop Frankfurt am Main
Lufthansa Logo
6:25 am - 5:05 pmSOF  Sofia-PHL Philadelphia
16h 40m1 stop Frankfurt am Main
$742Lufthansa
Tue, Oct 13 - Tue, Oct 27
Lufthansa Logo
5:40 pm - 6:00 pmPHL  Philadelphia-SOF Sofia
17h 20m1 stop Frankfurt am Main
Lufthansa Logo
2:10 pm - 5:05 pmSOF  Sofia-PHL Philadelphia
32h 55m1 stop Frankfurt am Main
$762Lufthansa
Tue, Oct 13 - Wed, Oct 28
Lufthansa Logo
5:40 pm - 6:00 pmPHL  Philadelphia-SOF Sofia
17h 20m1 stop Frankfurt am Main
Lufthansa Logo
2:10 pm - 5:05 pmSOF  Sofia-PHL Philadelphia
32h 55m1 stop Frankfurt am Main
$764Lufthansa
Tue, Oct 13 - Wed, Oct 28
United Airlines Logo
3:08 pm - 12:10 pmPHL  Philadelphia-SOF Sofia
14h 02m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
6:10 am - 4:05 pmSOF  Sofia-PHL Philadelphia
16h 55m1 stop Frankfurt am Main
$767United Airlines
Mon, Sep 28 - Tue, Oct 20
United Airlines Logo
6:15 am - 12:10 pmPHL  Philadelphia-SOF Sofia
22h 55m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
6:10 am - 4:05 pmSOF  Sofia-PHL Philadelphia
16h 55m1 stop Frankfurt am Main
$767United Airlines
Mon, Sep 28 - Tue, Oct 20
United Airlines Logo
10:40 am - 12:10 pmPHL  Philadelphia-SOF Sofia
18h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
6:10 am - 4:05 pmSOF  Sofia-PHL Philadelphia
16h 55m1 stop Frankfurt am Main
$767United Airlines
Mon, Sep 28 - Tue, Oct 20

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British Airways flights from Philadelphia to Bulgaria

Our best British Airways deals on Philadelphia to Bulgaria flight tickets
British Airways
Dec 6
PHL6:35 pmPhiladelphia
14h 45m
1 stop
SOF4:20 pmSofia
Dec 9
SOF9:05 pmSofia
26h 10m
1 stop
PHL4:15 pmPhiladelphia
$740
British Airways
Oct 15
PHL6:45 pmPhiladelphia
11h 40m
1 stop
SOF1:25 pmSofia
Oct 30
SOF8:30 pmSofia
26h 45m
1 stop
PHL5:15 pmPhiladelphia
$934
British Airways
Oct 15
PHL6:45 pmPhiladelphia
11h 40m
1 stop
SOF1:25 pmSofia
Oct 30
SOF8:30 pmSofia
26h 45m
1 stop
PHL5:15 pmPhiladelphia
$963

Air Canada flights from Philadelphia to Bulgaria

Our best Air Canada deals on Philadelphia to Bulgaria flight tickets
Air Canada
Dec 6
PHL3:20 pmPhiladelphia
20h 00m
2 stops
SOF6:20 pmSofia
Dec 9
SOF2:00 pmSofia
31h 44m
2 stops
PHL2:44 pmPhiladelphia
$745
Air Canada
Oct 15
PHL10:35 amPhiladelphia
18h 35m
2 stops
SOF12:10 pmSofia
Oct 30
SOF6:25 amSofia
22h 31m
3 stops
PHL10:56 pmPhiladelphia
$832
Air Canada
Oct 13
PHL3:25 pmPhiladelphia
20h 15m
2 stops
SOF6:40 pmSofia
Oct 27
SOF6:25 amSofia
22h 31m
3 stops
PHL10:56 pmPhiladelphia
$847

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Bulgaria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Philadelphia to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Wed 10/28

6:00 am-10:56 pm

2 stops22h 56m

$727

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 10/27

6:00 am-10:56 pm

2 stops22h 56m

$731

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Tue 10/27

6:25 am-5:05 pm

1 stop16h 40m

$736

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

3:25 pm-6:40 pm

2 stops20h 15m

Sofia

Wed 10/28

2:00 pm-2:44 pm

2 stops30h 44m

$740

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Tue 10/27

6:25 am-5:05 pm

1 stop16h 40m

$742

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Wed 10/28

2:10 pm-5:05 pm

1 stop32h 55m

$762

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Wed 10/28

2:10 pm-5:05 pm

1 stop32h 55m

$764
Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 9/28

3:08 pm-12:10 pm

2 stops14h 02m

Sofia

Tue 10/20

6:10 am-4:05 pm

1 stop16h 55m

$767

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 9/28

6:15 am-12:10 pm

2 stops22h 55m

Sofia

Tue 10/20

6:10 am-4:05 pm

1 stop16h 55m

$767

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 9/28

10:40 am-12:10 pm

2 stops18h 30m

Sofia

Tue 10/20

6:10 am-4:05 pm

1 stop16h 55m

$767

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Bulgaria from

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

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

Fastest flight time

12h 55m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 12h 55m
There are no direct flights from Philadelphia to Bulgaria. There are no popular flight routes from Philadelphia to Bulgaria.
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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?

  • 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
LufthansaPriceFrom $497Free CancellationRating
6.8
8,182 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
10,115 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.

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