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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 4/15. 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

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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.
United Airlines Logo
9:52 am - 12:10 pm
PHL
-
SOF
19h 18m
2 stops
United Airlines Logo
6:10 am - 9:43 am
SOF
-
PHL
34h 33m
2 stops
$748United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
10:28 am - 11:15 pm
PHL
-
SOF
29h 47m
2 stops
United Airlines Logo
12:55 pm - 9:43 am
SOF
-
PHL
27h 48m
2 stops
$749United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
7:55 pm - 12:10 pm
PHL
-
SOF
33h 15m
2 stops
United Airlines Logo
6:20 am - 12:37 am
SOF
-
PHL
25h 17m
2 stops
$807United Airlines
Sat, Sep 5 - Sat, Oct 3
British Airways Logo
1:55 pm - 1:25 pm
PHL
-
SOF
40h 30m
2 stops
British Airways Logo
9:25 pm - 4:40 pm
SOF
-
PHL
26h 15m
1 stop
$812British Airways
Wed, Sep 9 - Wed, Sep 16
British Airways Logo
5:40 pm - 1:25 pm
PHL
-
SOF
36h 45m
2 stops
British Airways Logo
9:25 pm - 4:40 pm
SOF
-
PHL
26h 15m
1 stop
$814British Airways
Wed, Sep 9 - Wed, Sep 16
Air France Logo
1:10 pm - 2:00 pm
PHL
-
SOF
17h 50m
2 stops
Air France Logo
7:00 am - 7:58 pm
SOF
-
PHL
19h 58m
2 stops
$844Air France
Tue, Aug 4 - Thu, Aug 20
Turkish Airlines Logo
9:21 am - 2:55 am
PHL
-
VAR
34h 34m
2 stops
Turkish Airlines Logo
10:10 pm - 7:38 am
VAR
-
PHL
40h 28m
2 stops
$1,264Turkish Airlines
Thu, May 28 - Wed, Aug 26
Air France Logo
12:38 pm - 3:30 pm
PHL
-
VAR
19h 52m
2 stops
Air France Logo
8:30 am - 10:20 pm
VAR
-
PHL
20h 50m
2 stops
$1,392Air France
Wed, May 27 - Thu, Aug 27
Lufthansa Logo
5:40 pm - 3:15 pm
PHL
-
VAR
14h 35m
2 stops
Lufthansa Logo
4:00 pm - 4:05 pm
VAR
-
PHL
31h 05m
2 stops
$1,405Lufthansa
Fri, May 29 - Wed, Aug 26
Lufthansa Logo
5:40 pm - 8:45 pm
PHL
-
VAR
20h 05m
2 stops
Lufthansa Logo
1:35 pm - 4:05 pm
VAR
-
PHL
33h 30m
2 stops
$1,418Lufthansa
Tue, May 26 - Wed, Aug 26

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Sep 9
PHL9:52 amPhiladelphia
19h 18m
2 stops
SOF12:10 pmSofia
Sep 16
SOF6:10 amSofia
34h 33m
2 stops
PHL9:43 amPhiladelphia
$748
United Airlines
Sep 9
PHL10:28 amPhiladelphia
29h 47m
2 stops
SOF11:15 pmSofia
Sep 16
SOF12:55 pmSofia
27h 48m
2 stops
PHL9:43 amPhiladelphia
$749
United Airlines
Sep 5
PHL7:55 pmPhiladelphia
33h 15m
2 stops
SOF12:10 pmSofia
Oct 3
SOF6:20 amSofia
25h 17m
2 stops
PHL12:37 amPhiladelphia
$807

Air France flights from Philadelphia to Bulgaria

Our best Air France deals on Philadelphia to Bulgaria flight tickets
Air France
Aug 4
PHL1:10 pmPhiladelphia
17h 50m
2 stops
SOF2:00 pmSofia
Aug 20
SOF7:00 amSofia
19h 58m
2 stops
PHL7:58 pmPhiladelphia
$844
Air France
Aug 4
PHL1:10 pmPhiladelphia
17h 50m
2 stops
SOF2:00 pmSofia
Aug 20
SOF7:00 amSofia
19h 58m
2 stops
PHL7:58 pmPhiladelphia
$937
Air France
May 27
PHL12:38 pmPhiladelphia
19h 52m
2 stops
VAR3:30 pmVarna
Aug 27
VAR8:30 amVarna
20h 50m
2 stops
PHL10:20 pmPhiladelphia
$1,392

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 April 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

Cheapest round-trip

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 9/9

9:52 am-12:10 pm

2 stops19h 18m

Sofia

Wed 9/16

6:10 am-9:43 am

2 stops34h 33m

$748

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 9/9

10:28 am-11:15 pm

2 stops29h 47m

Sofia

Wed 9/16

12:55 pm-9:43 am

2 stops27h 48m

$749

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 9/5

7:55 pm-12:10 pm

2 stops33h 15m

Sofia

Sat 10/3

6:20 am-12:37 am

2 stops25h 17m

$807

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 9/9

1:55 pm-1:25 pm

2 stops40h 30m

Sofia

Wed 9/16

9:25 pm-4:40 pm

1 stop26h 15m

$812

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 9/9

5:40 pm-1:25 pm

2 stops36h 45m

Sofia

Wed 9/16

9:25 pm-4:40 pm

1 stop26h 15m

$814
Quickest round-trip

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/4

1:10 pm-2:00 pm

2 stops17h 50m

Sofia

Thu 8/20

7:00 am-7:58 pm

2 stops19h 58m

$844

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Thu 5/28

9:21 am-2:55 am

2 stops34h 34m

Varna

Wed 8/26

10:10 pm-7:38 am

2 stops40h 28m

$1,264

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Wed 5/27

12:38 pm-3:30 pm

2 stops19h 52m

Varna

Thu 8/27

8:30 am-10:20 pm

2 stops20h 50m

$1,392

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Fri 5/29

5:40 pm-3:15 pm

2 stops14h 35m

Varna

Wed 8/26

4:00 pm-4:05 pm

2 stops31h 05m

$1,405

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Tue 5/26

5:40 pm-8:45 pm

2 stops20h 05m

Varna

Wed 8/26

1:35 pm-4:05 pm

2 stops33h 30m

$1,418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 25% 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

11h 45m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 11h 45m
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?

  • 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
7,880 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,529 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

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