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Cheap flights from Philadelphia to Bulgaria from $474

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 4/1. 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
0 bags

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Find the cheapest flights from Philadelphia to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:30 pm - 6:05 pm
PHL
-
SOF
19h 35m
2 stops
Multiple Airlines Logo
6:20 am - 2:46 pm
SOF
-
PHL
15h 26m
2 stops
$474Multiple Airlines
Wed, Apr 1 - Wed, Apr 15
Lufthansa Logo
5:40 pm - 1:05 pm
PHL
-
SOF
12h 25m
1 stop
Lufthansa Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$484Lufthansa
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m
2 stops
Multiple Airlines Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$486Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Air Canada Logo
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m
2 stops
Air Canada Logo
12:55 pm - 2:46 pm
SOF
-
PHL
32h 51m
2 stops
$491Air Canada
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
3:30 pm - 6:05 pm
PHL
-
SOF
19h 35m
2 stops
Multiple Airlines Logo
7:00 pm - 4:05 pm
SOF
-
PHL
28h 05m
1 stop
$499Multiple Airlines
Wed, Apr 1 - Wed, Apr 15
Multiple Airlines Logo
3:30 pm - 6:05 pm
PHL
-
SOF
19h 35m
2 stops
Multiple Airlines Logo
7:00 pm - 4:05 pm
SOF
-
PHL
28h 05m
1 stop
$519Multiple Airlines
Wed, Apr 1 - Wed, Apr 15
Multiple Airlines Logo
10:05 am - 11:00 am
PHL
-
SOF
17h 55m
2 stops
Multiple Airlines Logo
11:50 am - 4:05 pm
SOF
-
PHL
35h 15m
1 stop
$533Multiple Airlines
Tue, May 12 - Mon, May 18
Multiple Airlines Logo
10:05 am - 1:05 pm
PHL
-
SOF
20h 00m
2 stops
Multiple Airlines Logo
7:25 pm - 4:05 pm
SOF
-
PHL
27h 40m
2 stops
$535Multiple Airlines
Tue, May 12 - Mon, May 18
United Airlines Logo
7:45 pm - 10:45 pm
PHL
-
SOF
21h 00m
2 stops
United Airlines Logo
6:00 am - 5:05 pm
SOF
-
PHL
17h 05m
1 stop
$537United Airlines
Fri, Mar 20 - Tue, Mar 24
United Airlines Logo
7:45 pm - 11:10 pm
PHL
-
SOF
20h 25m
2 stops
United Airlines Logo
2:20 pm - 4:00 pm
SOF
-
PHL
32h 40m
1 stop
$538United Airlines
Tue, May 12 - Mon, May 25

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Mar 20
PHL7:45 pmPhiladelphia
21h 00m
2 stops
SOF10:45 pmSofia
Mar 24
SOF6:00 amSofia
17h 05m
1 stop
PHL5:05 pmPhiladelphia
$537
United Airlines
May 12
PHL7:45 pmPhiladelphia
20h 25m
2 stops
SOF11:10 pmSofia
May 25
SOF2:20 pmSofia
32h 40m
1 stop
PHL4:00 pmPhiladelphia
$538
United Airlines
May 12
PHL7:45 pmPhiladelphia
20h 25m
2 stops
SOF11:10 pmSofia
May 25
SOF12:55 pmSofia
39h 37m
2 stops
PHL9:32 pmPhiladelphia
$540

Air Canada flights from Philadelphia to Bulgaria

Our best Air Canada deals on Philadelphia to Bulgaria flight tickets
Air Canada
Mar 31
PHL3:30 pmPhiladelphia
20h 10m
2 stops
SOF6:40 pmSofia
Apr 7
SOF12:55 pmSofia
32h 51m
2 stops
PHL2:46 pmPhiladelphia
$491
Air Canada
Feb 6
PHL3:30 pmPhiladelphia
15h 05m
2 stops
SOF1:35 pmSofia
Feb 10
SOF2:15 pmSofia
15h 31m
2 stops
PHL10:46 pmPhiladelphia
$557
Air Canada
Jul 5
PHL10:05 amPhiladelphia
17h 55m
2 stops
SOF11:00 amSofia
Jul 22
SOF6:10 amSofia
40h 31m
2 stops
PHL3:41 pmPhiladelphia
$633

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 January 26, 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

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 4/1

3:30 pm-6:05 pm

2 stops19h 35m

Sofia

Wed 4/15

6:20 am-2:46 pm

2 stops15h 26m

$474

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:40 pm-1:05 pm

1 stop12h 25m

Sofia

Tue 4/7

6:10 am-4:05 pm

1 stop16h 55m

$484

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

6:10 am-4:05 pm

1 stop16h 55m

$486

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

12:55 pm-2:46 pm

2 stops32h 51m

$491

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 4/1

3:30 pm-6:05 pm

2 stops19h 35m

Sofia

Wed 4/15

7:00 pm-4:05 pm

1 stop28h 05m

$499

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 4/1

3:30 pm-6:05 pm

2 stops19h 35m

Sofia

Wed 4/15

7:00 pm-4:05 pm

1 stop28h 05m

$519

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 5/12

10:05 am-11:00 am

2 stops17h 55m

Sofia

Mon 5/18

11:50 am-4:05 pm

1 stop35h 15m

$533

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 5/12

10:05 am-1:05 pm

2 stops20h 00m

Sofia

Mon 5/18

7:25 pm-4:05 pm

2 stops27h 40m

$535

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Fri 3/20

7:45 pm-10:45 pm

2 stops21h 00m

Sofia

Tue 3/24

6:00 am-5:05 pm

1 stop17h 05m

$537

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 5/12

7:45 pm-11:10 pm

2 stops20h 25m

Sofia

Mon 5/25

2:20 pm-4:00 pm

1 stop32h 40m

$538

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $540.

Can stopping save me money on Philadelphia to Bulgaria flights?

You could potentially save up to 33% 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 25m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 12h 25m
There are no direct flights from Philadelphia to Bulgaria. There are no popular flight routes from Philadelphia to Bulgaria.
Search flight deals

  • 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 $511Free CancellationRating
6.8
7,747 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,198 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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