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Cheap flights from Philadelphia to Bulgaria from $365

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 9/22. 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

Lufthansa Logo
5:35 pm - 1:15 pmPHL-SOF
12h 40m1 stop
Lufthansa Logo
6:15 am - 4:00 pmSOF-PHL
16h 45m1 stop
$500Lufthansa
Find Deal
mer., oct. 15 - mer., oct. 22
Lufthansa Logo
5:40 pm - 6:15 pmPHL-SOF
17h 35m1 stop
Lufthansa Logo
6:00 am - 4:05 pmSOF-PHL
17h 05m1 stop
$503Lufthansa
Find Deal
mar., nov. 4 - mar., nov. 11
United Airlines Logo
5:40 pm - 10:45 pmPHL-SOF
22h 05m1 stop
United Airlines Logo
6:00 am - 2:47 pmSOF-PHL
15h 47m2 stops
$505United Airlines
Find Deal
mar., nov. 4 - mar., nov. 11
United Airlines Logo
5:07 pm - 6:20 pmPHL-SOF
18h 13m2 stops
United Airlines Logo
6:00 am - 2:47 pmSOF-PHL
15h 47m2 stops
$506United Airlines
Find Deal
mar., nov. 4 - mar., nov. 11
Lufthansa Logo
5:35 pm - 1:15 pmPHL-SOF
12h 40m1 stop
Lufthansa Logo
6:15 am - 4:00 pmSOF-PHL
16h 45m1 stop
$511Lufthansa
Find Deal
mer., oct. 15 - mer., oct. 22
Logo
3:25 pm - 5:50 pmPHL-SOF
19h 25m2 stops
Logo
6:15 am - 9:38 pmSOF-PHL
22h 23m2 stops
$518
Find Deal
mer., oct. 15 - mer., oct. 22
Logo
3:25 pm - 1:15 pmPHL-SOF
14h 50m2 stops
Logo
6:15 am - 4:00 pmSOF-PHL
16h 45m1 stop
$527
Find Deal
mer., oct. 15 - mer., oct. 22
Air Canada Logo
9:20 am - 6:20 pmPHL-SOF
26h 00m2 stops
Air Canada Logo
6:05 am - 10:56 pmSOF-PHL
23h 51m3 stops
$537Air Canada
Find Deal
mar., nov. 4 - mar., nov. 11
Air Canada Logo
7:30 am - 11:15 amPHL-SOF
20h 45m2 stops
Air Canada Logo
6:15 am - 9:38 pmSOF-PHL
22h 23m2 stops
$572Air Canada
Find Deal
dim., sept. 28 - jeu., oct. 16
SWISS Logo
1:03 pm - 10:05 amPHL-SOF
38h 02m2 stops
SWISS Logo
3:30 pm - 9:28 pmSOF-PHL
36h 58m2 stops
$596SWISS
Find Deal
mar., sept. 23 - lun., oct. 20

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Oct 15
PHL5:35 pmPhiladelphia
12h 40m
1 stop
SOF1:15 pmSofia
Oct 22
SOF6:15 amSofia
16h 45m
1 stop
PHL4:00 pmPhiladelphia
$500
Find similar
Lufthansa
Nov 4
PHL5:40 pmPhiladelphia
17h 35m
1 stop
SOF6:15 pmSofia
Nov 11
SOF6:00 amSofia
17h 05m
1 stop
PHL4:05 pmPhiladelphia
$503
Find similar
Lufthansa
Oct 15
PHL5:35 pmPhiladelphia
12h 40m
1 stop
SOF1:15 pmSofia
Oct 22
SOF6:15 amSofia
16h 45m
1 stop
PHL4:00 pmPhiladelphia
$511
Find similar

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Nov 4
PHL5:40 pmPhiladelphia
22h 05m
1 stop
SOF10:45 pmSofia
Nov 11
SOF6:00 amSofia
15h 47m
2 stops
PHL2:47 pmPhiladelphia
$505
Find similar
United Airlines
Nov 4
PHL5:07 pmPhiladelphia
18h 13m
2 stops
SOF6:20 pmSofia
Nov 11
SOF6:00 amSofia
15h 47m
2 stops
PHL2:47 pmPhiladelphia
$506
Find similar
United Airlines
Oct 17
PHL5:35 pmPhiladelphia
12h 50m
1 stop
SOF1:25 pmSofia
Nov 7
SOF6:10 amSofia
15h 37m
2 stops
PHL2:47 pmPhiladelphia
$555
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 septembre 8, 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

mer. 10/15

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

mer. 10/22

6:15 am-4:00 pm

1 stop16h 45m

$500

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mar. 11/4

5:40 pm-6:15 pm

1 stop17h 35m

Sofia

mar. 11/11

6:00 am-4:05 pm

1 stop17h 05m

$503

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mar. 11/4

5:40 pm-10:45 pm

1 stop22h 05m

Sofia

mar. 11/11

6:00 am-2:47 pm

2 stops15h 47m

$505

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mar. 11/4

5:07 pm-6:20 pm

2 stops18h 13m

Sofia

mar. 11/11

6:00 am-2:47 pm

2 stops15h 47m

$506

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mer. 10/15

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

mer. 10/22

6:15 am-4:00 pm

1 stop16h 45m

$511

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mer. 10/15

3:25 pm-5:50 pm

2 stops19h 25m

Sofia

mer. 10/22

6:15 am-9:38 pm

2 stops22h 23m

$518

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mer. 10/15

3:25 pm-1:15 pm

2 stops14h 50m

Sofia

mer. 10/22

6:15 am-4:00 pm

1 stop16h 45m

$527

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mar. 11/4

9:20 am-6:20 pm

2 stops26h 00m

Sofia

mar. 11/11

6:05 am-10:56 pm

3 stops23h 51m

$537

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

dim. 9/28

7:30 am-11:15 am

2 stops20h 45m

Sofia

jeu. 10/16

6:15 am-9:38 pm

2 stops22h 23m

$572

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

mar. 9/23

1:03 pm-10:05 am

2 stops38h 02m

Sofia

lun. 10/20

3:30 pm-9:28 pm

2 stops36h 58m

$596

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 February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $617.

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

Direct flights

None
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 $617Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
United AirlinesPriceFrom $646Free CancellationRating
7.4
8,944 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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