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Cheap flights from Philadelphia to Bulgaria from $481

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 2/7. 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.
British Airways Logo
9:15 pm - 4:20 pmPHL-SOF
36h 05m2 stops
British Airways Logo
12:05 pm - 4:15 pmSOF-PHL
35h 10m1 stop
$481British Airways
Find Deal
Sat, Feb 7 - Sat, Feb 14
United Airlines Logo
10:10 am - 10:45 pmPHL-SOF
29h 35m2 stops
United Airlines Logo
6:10 am - 4:05 pmSOF-PHL
16h 55m1 stop
$502United Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
United Airlines Logo
10:10 am - 10:45 pmPHL-SOF
29h 35m2 stops
United Airlines Logo
2:25 pm - 10:46 pmSOF-PHL
15h 21m2 stops
$508United Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
Air Canada Logo
7:50 am - 6:20 pmPHL-SOF
27h 30m2 stops
Air Canada Logo
2:00 pm - 2:47 pmSOF-PHL
31h 47m2 stops
$510Air Canada
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Wed, Jan 21 - Sun, Jan 25
United Airlines Logo
1:10 pm - 6:20 pmPHL-SOF
22h 10m2 stops
United Airlines Logo
6:10 am - 9:36 pmSOF-PHL
22h 26m2 stops
$511United Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
British Airways Logo
9:15 pm - 4:20 pmPHL-SOF
36h 05m2 stops
British Airways Logo
12:05 pm - 11:52 pmSOF-PHL
42h 47m2 stops
$518British Airways
Find Deal
Sat, Feb 7 - Sat, Feb 14
British Airways Logo
6:35 pm - 1:00 pmPHL-SOF
11h 25m1 stop
British Airways Logo
12:05 pm - 4:15 pmSOF-PHL
35h 10m1 stop
$533British Airways
Find Deal
Sat, Feb 7 - Sat, Feb 14
United Airlines Logo
10:06 am - 10:45 pmPHL-SOF
29h 39m2 stops
United Airlines Logo
6:25 am - 9:38 pmSOF-PHL
22h 13m2 stops
$545United Airlines
Find Deal
Sat, Feb 14 - Sat, Feb 21
United Airlines Logo
5:00 pm - 6:20 pmPHL-SOF
18h 20m2 stops
United Airlines Logo
6:05 am - 7:04 pmSOF-PHL
19h 59m3 stops
$569United Airlines
Find Deal
Sat, Feb 7 - Sat, Feb 14
Multiple Airlines Logo
3:30 pm - 2:25 pmPHL-SOF
15h 55m2 stops
Multiple Airlines Logo
10:05 pm - 10:46 pmSOF-PHL
31h 41m3 stops
$708Multiple Airlines
Find Deal
Sat, Feb 14 - Sat, Feb 21

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
SOF12:50 pmSofia
33h 54m
2 stops
PHL3:44 pmPhiladelphia
$475
Find similar
Air Canada
Jan 21
PHL7:50 amPhiladelphia
27h 30m
2 stops
SOF6:20 pmSofia
Jan 25
SOF2:00 pmSofia
31h 47m
2 stops
PHL2:47 pmPhiladelphia
$510
Find similar

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Mar 31
PHL2:56 pmPhiladelphia
20h 44m
2 stops
SOF6:40 pmSofia
Apr 7
SOF6:10 amSofia
16h 50m
1 stop
PHL4:00 pmPhiladelphia
$476
Find similar
United Airlines
Jan 21
PHL10:10 amPhiladelphia
29h 35m
2 stops
SOF10:45 pmSofia
Jan 25
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$502
Find similar
United Airlines
Jan 21
PHL10:10 amPhiladelphia
29h 35m
2 stops
SOF10:45 pmSofia
Jan 25
SOF2:25 pmSofia
15h 21m
2 stops
PHL10:46 pmPhiladelphia
$508
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 December 3, 2025.
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

Sat 2/7

9:15 pm-4:20 pm

2 stops36h 05m

Sofia

Sat 2/14

12:05 pm-4:15 pm

1 stop35h 10m

$481

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 1/21

10:10 am-10:45 pm

2 stops29h 35m

Sofia

Sun 1/25

6:10 am-4:05 pm

1 stop16h 55m

$502

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 1/21

10:10 am-10:45 pm

2 stops29h 35m

Sofia

Sun 1/25

2:25 pm-10:46 pm

2 stops15h 21m

$508

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 1/21

7:50 am-6:20 pm

2 stops27h 30m

Sofia

Sun 1/25

2:00 pm-2:47 pm

2 stops31h 47m

$510

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 1/21

1:10 pm-6:20 pm

2 stops22h 10m

Sofia

Sun 1/25

6:10 am-9:36 pm

2 stops22h 26m

$511

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/7

9:15 pm-4:20 pm

2 stops36h 05m

Sofia

Sat 2/14

12:05 pm-11:52 pm

2 stops42h 47m

$518

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/7

6:35 pm-1:00 pm

1 stop11h 25m

Sofia

Sat 2/14

12:05 pm-4:15 pm

1 stop35h 10m

$533

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/14

10:06 am-10:45 pm

2 stops29h 39m

Sofia

Sat 2/21

6:25 am-9:38 pm

2 stops22h 13m

$545

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/7

5:00 pm-6:20 pm

2 stops18h 20m

Sofia

Sat 2/14

6:05 am-7:04 pm

3 stops19h 59m

$569

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/14

3:30 pm-2:25 pm

2 stops15h 55m

Sofia

Sat 2/21

10:05 pm-10:46 pm

3 stops31h 41m

$708

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from Philadelphia to Bulgaria is on a Tuesday when prices can be found for as low as $741. On the other hand, Saturday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,491.

What is the cheapest time of day to depart on your flight to Bulgaria?

In the evening is the cheapest time of day to fly from Philadelphia to Bulgaria when you can find flight prices for as low as $838. Flying to Bulgaria in the evening is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly in the morning, with an average ticket price of $1,318. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

17h 35m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 17h 35m
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
7,603 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,063 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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