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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 4/14. 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
11:36 am - 10:20 am
PHL
-
SOF
15h 44m2 stops
Multiple Airlines Logo
6:20 am - 4:00 pm
SOF
-
PHL
16h 40m1 stop
$474Multiple Airlines
Tue, Apr 14 - Wed, Apr 29
Lufthansa Logo
5:35 pm - 1:05 pm
PHL
-
SOF
12h 30m1 stop
Lufthansa Logo
6:20 am - 4:00 pm
SOF
-
PHL
16h 40m1 stop
$484Lufthansa
Tue, Apr 14 - Wed, Apr 29
Multiple Airlines Logo
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m2 stops
Multiple Airlines Logo
6:10 am - 4:00 pm
SOF
-
PHL
16h 50m1 stop
$486Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
Lufthansa Logo
5:35 pm - 6:00 pm
PHL
-
SOF
17h 25m1 stop
Lufthansa Logo
6:10 am - 4:00 pm
SOF
-
PHL
16h 50m1 stop
$491Lufthansa
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
7:45 pm - 11:10 pm
PHL
-
SOF
20h 25m2 stops
United Airlines Logo
1:50 pm - 10:43 pm
SOF
-
PHL
15h 53m2 stops
$493United Airlines
Tue, Apr 14 - Wed, Apr 29
Multiple Airlines Logo
5:40 pm - 1:50 pm
PHL
-
SOF
13h 10m1 stop
Multiple Airlines Logo
6:00 am - 2:50 pm
SOF
-
PHL
15h 50m2 stops
$534Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
United Airlines Logo
10:10 am - 10:45 pm
PHL
-
SOF
29h 35m2 stops
United Airlines Logo
2:35 pm - 3:24 pm
SOF
-
PHL
31h 49m2 stops
$543United Airlines
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
7:50 am - 11:55 pm
PHL
-
SOF
33h 05m2 stops
Multiple Airlines Logo
6:00 am - 2:50 pm
SOF
-
PHL
15h 50m2 stops
$546Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
KLM Logo
12:29 pm - 2:05 pm
PHL
-
SOF
18h 36m2 stops
KLM Logo
7:00 am - 6:52 pm
SOF
-
PHL
18h 52m2 stops
$551KLM
Fri, Feb 13 - Fri, Feb 20
Air Canada Logo
7:50 am - 1:35 pm
PHL
-
SOF
22h 45m2 stops
Air Canada Logo
2:15 pm - 10:46 pm
SOF
-
PHL
15h 31m2 stops
$558Air Canada
Fri, Feb 6 - Tue, Feb 10

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Apr 14
PHL5:35 pmPhiladelphia
12h 30m
1 stop
SOF1:05 pmSofia
Apr 29
SOF6:20 amSofia
16h 40m
1 stop
PHL4:00 pmPhiladelphia
$484
Find similar
Lufthansa
May 29
PHL5:35 pmPhiladelphia
12h 30m
1 stop
SOF1:05 pmSofia
Jun 15
SOF6:20 amSofia
16h 40m
1 stop
PHL4:00 pmPhiladelphia
$812
Find similar

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Apr 14
PHL7:45 pmPhiladelphia
20h 25m
2 stops
SOF11:10 pmSofia
Apr 29
SOF1:50 pmSofia
15h 53m
2 stops
PHL10:43 pmPhiladelphia
$493
Find similar
United Airlines
Jan 29
PHL10:10 amPhiladelphia
29h 35m
2 stops
SOF10:45 pmSofia
Feb 5
SOF2:35 pmSofia
31h 49m
2 stops
PHL3:24 pmPhiladelphia
$543
Find similar
United Airlines
Jun 20
PHL7:00 amPhiladelphia
23h 00m
2 stops
SOF1:00 pmSofia
Jul 4
SOF12:55 pmSofia
17h 35m
2 stops
PHL11:30 pmPhiladelphia
$989
Find similar

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 1, 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

Tue 4/14

11:36 am-10:20 am

2 stops15h 44m

Sofia

Wed 4/29

6:20 am-4:00 pm

1 stop16h 40m

$474

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 4/14

5:35 pm-1:05 pm

1 stop12h 30m

Sofia

Wed 4/29

6:20 am-4:00 pm

1 stop16h 40m

$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-4:00 pm

1 stop16h 50m

$486

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:35 pm-6:00 pm

1 stop17h 25m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$491

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 4/14

7:45 pm-11:10 pm

2 stops20h 25m

Sofia

Wed 4/29

1:50 pm-10:43 pm

2 stops15h 53m

$493

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 1/29

5:40 pm-1:50 pm

1 stop13h 10m

Sofia

Thu 2/5

6:00 am-2:50 pm

2 stops15h 50m

$534

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 1/29

10:10 am-10:45 pm

2 stops29h 35m

Sofia

Thu 2/5

2:35 pm-3:24 pm

2 stops31h 49m

$543

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Thu 1/29

7:50 am-11:55 pm

2 stops33h 05m

Sofia

Thu 2/5

6:00 am-2:50 pm

2 stops15h 50m

$546

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Fri 2/13

12:29 pm-2:05 pm

2 stops18h 36m

Sofia

Fri 2/20

7:00 am-6:52 pm

2 stops18h 52m

$551

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Fri 2/6

7:50 am-1:35 pm

2 stops22h 45m

Sofia

Tue 2/10

2:15 pm-10:46 pm

2 stops15h 31m

$558

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 8% 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

15h 44m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 15h 44m
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
7,675 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,127 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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