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Cheap flights from Philadelphia to Bulgaria from $321

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 3/18. 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
6:35 pm - 4:20 pmPHL-SOF
14h 45m1 stop
British Airways Logo
5:25 pm - 4:15 pmSOF-PHL
29h 50m1 stop
$464British Airways
Find Deal
Sun, Jan 18 - Mon, Feb 2
Multiple Airlines Logo
3:30 pm - 1:15 pmPHL-SOF
14h 45m2 stops
Multiple Airlines Logo
6:10 am - 4:00 pmSOF-PHL
16h 50m1 stop
$477Multiple Airlines
Find Deal
Tue, Mar 31 - Tue, Apr 7
Air Canada Logo
3:30 pm - 6:40 pmPHL-SOF
20h 10m2 stops
Air Canada Logo
6:20 am - 2:46 pmSOF-PHL
15h 26m2 stops
$479Air Canada
Find Deal
Tue, Mar 31 - Wed, Apr 8
Lufthansa Logo
5:35 pm - 1:15 pmPHL-SOF
12h 40m1 stop
Lufthansa Logo
6:10 am - 4:00 pmSOF-PHL
16h 50m1 stop
$480Lufthansa
Find Deal
Tue, Mar 31 - Tue, Apr 7
Air Canada Logo
3:30 pm - 6:40 pmPHL-SOF
20h 10m2 stops
Air Canada Logo
12:50 pm - 2:46 pmSOF-PHL
32h 56m2 stops
$482Air Canada
Find Deal
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
2:56 pm - 11:10 pmPHL-SOF
25h 14m2 stops
United Airlines Logo
6:10 am - 4:00 pmSOF-PHL
16h 50m1 stop
$484United Airlines
Find Deal
Sun, Mar 29 - Tue, Apr 7
British Airways Logo
12:23 pm - 4:20 pmPHL-SOF
20h 57m2 stops
British Airways Logo
5:25 pm - 4:15 pmSOF-PHL
29h 50m1 stop
$485British Airways
Find Deal
Sun, Jan 18 - Mon, Feb 2
Air Canada Logo
3:30 pm - 6:40 pmPHL-SOF
20h 10m2 stops
Air Canada Logo
6:10 am - 3:44 pmSOF-PHL
40h 34m2 stops
$486Air Canada
Find Deal
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
5:35 pm - 6:00 pmPHL-SOF
17h 25m1 stop
Multiple Airlines Logo
6:20 am - 2:46 pmSOF-PHL
15h 26m2 stops
$487Multiple Airlines
Find Deal
Tue, Mar 31 - Wed, Apr 8
Air Canada Logo
4:35 pm - 11:05 amPHL-SOF
36h 30m2 stops
Air Canada Logo
12:50 pm - 2:46 pmSOF-PHL
32h 56m2 stops
$489Air Canada
Find Deal
Sat, Mar 28 - Tue, Apr 7

British Airways flights from Philadelphia to Bulgaria

Our best British Airways deals on Philadelphia to Bulgaria flight tickets
British Airways
Jan 18
PHL6:35 pmPhiladelphia
14h 45m
1 stop
SOF4:20 pmSofia
Feb 2
SOF5:25 pmSofia
29h 50m
1 stop
PHL4:15 pmPhiladelphia
$464
Find similar
British Airways
Mar 31
PHL6:45 pmPhiladelphia
18h 55m
1 stop
SOF8:40 pmSofia
Apr 8
SOF9:30 pmSofia
26h 10m
1 stop
PHL4:40 pmPhiladelphia
$477
Find similar
British Airways
Jan 18
PHL12:23 pmPhiladelphia
20h 57m
2 stops
SOF4:20 pmSofia
Feb 2
SOF5:25 pmSofia
29h 50m
1 stop
PHL4:15 pmPhiladelphia
$485
Find similar

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 8
SOF6:20 amSofia
15h 26m
2 stops
PHL2:46 pmPhiladelphia
$479
Find similar
Air Canada
Mar 31
PHL3:30 pmPhiladelphia
20h 10m
2 stops
SOF6:40 pmSofia
Apr 7
SOF12:50 pmSofia
32h 56m
2 stops
PHL2:46 pmPhiladelphia
$482
Find similar
Air Canada
Mar 31
PHL3:30 pmPhiladelphia
20h 10m
2 stops
SOF6:40 pmSofia
Apr 7
SOF6:10 amSofia
40h 34m
2 stops
PHL3:44 pmPhiladelphia
$486
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 November 25, 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

Sun 1/18

6:35 pm-4:20 pm

1 stop14h 45m

Sofia

Mon 2/2

5:25 pm-4:15 pm

1 stop29h 50m

$464

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-1:15 pm

2 stops14h 45m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$477

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Wed 4/8

6:20 am-2:46 pm

2 stops15h 26m

$479

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$480

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

12:50 pm-2:46 pm

2 stops32h 56m

$482

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 3/29

2:56 pm-11:10 pm

2 stops25h 14m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$484

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 1/18

12:23 pm-4:20 pm

2 stops20h 57m

Sofia

Mon 2/2

5:25 pm-4:15 pm

1 stop29h 50m

$485

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

6:10 am-3:44 pm

2 stops40h 34m

$486

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:35 pm-6:00 pm

1 stop17h 25m

Sofia

Wed 4/8

6:20 am-2:46 pm

2 stops15h 26m

$487

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 3/28

4:35 pm-11:05 am

2 stops36h 30m

Sofia

Tue 4/7

12:50 pm-2:46 pm

2 stops32h 56m

$489

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 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

14h 45m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 14h 45m
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
7,594 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,046 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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