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Cheap flights from Philadelphia to Bulgaria from $362

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 8/20. 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
3:20 pm - 1:15 pm
PHL
-
SOF
14h 55m
2 stops
Multiple Airlines Logo
2:25 pm - 10:56 pm
SOF
-
PHL
15h 31m
2 stops
$691Multiple Airlines
Wed, Nov 4 - Tue, Nov 17
Multiple Airlines Logo
3:20 pm - 1:15 pm
PHL
-
SOF
14h 55m
2 stops
Multiple Airlines Logo
2:25 pm - 10:56 pm
SOF
-
PHL
15h 31m
2 stops
$693Multiple Airlines
Wed, Nov 4 - Tue, Nov 17
British Airways Logo
6:35 pm - 8:10 pm
PHL
-
SOF
18h 35m
1 stop
British Airways Logo
9:00 pm - 4:15 pm
SOF
-
PHL
26h 15m
1 stop
$706British Airways
Tue, Nov 3 - Wed, Nov 18
United Airlines Logo
1:00 pm - 6:20 pm
PHL
-
SOF
22h 20m
2 stops
United Airlines Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$707United Airlines
Sun, Nov 1 - Tue, Nov 17
Air Canada Logo
3:20 pm - 1:10 pm
PHL
-
SOF
14h 50m
2 stops
Air Canada Logo
2:00 pm - 2:44 pm
SOF
-
PHL
31h 44m
2 stops
$711Air Canada
Sun, Nov 1 - Wed, Nov 18
Air Canada Logo
3:20 pm - 1:10 pm
PHL
-
SOF
14h 50m
2 stops
Air Canada Logo
6:10 am - 3:51 pm
SOF
-
PHL
40h 41m
2 stops
$714Air Canada
Sun, Nov 1 - Fri, Nov 20
United Airlines Logo
6:35 pm - 6:20 pm
PHL
-
SOF
16h 45m
2 stops
United Airlines Logo
2:25 pm - 10:56 pm
SOF
-
PHL
15h 31m
2 stops
$715United Airlines
Tue, Nov 3 - Wed, Nov 18
Multiple Airlines Logo
3:20 pm - 6:20 pm
PHL
-
SOF
20h 00m
2 stops
Multiple Airlines Logo
6:10 am - 10:56 pm
SOF
-
PHL
23h 46m
3 stops
$718Multiple Airlines
Wed, Nov 4 - Tue, Nov 17
Lufthansa Logo
5:40 pm - 1:45 pm
PHL
-
SOF
13h 05m
1 stop
Lufthansa Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$720Lufthansa
Tue, Nov 3 - Thu, Nov 19
Lufthansa Logo
5:40 pm - 3:15 pm
PHL
-
VAR
38h 35m
2 stops
Lufthansa Logo
1:35 pm - 4:05 pm
VAR
-
PHL
33h 30m
2 stops
$776Lufthansa
Sun, Aug 2 - Tue, Aug 18

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Nov 1
PHL1:00 pmPhiladelphia
22h 20m
2 stops
SOF6:20 pmSofia
Nov 17
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$707
United Airlines
Nov 3
PHL8:00 pmPhiladelphia
19h 45m
2 stops
SOF10:45 pmSofia
Nov 19
SOF2:25 pmSofia
15h 31m
2 stops
PHL10:56 pmPhiladelphia
$715
United Airlines
Nov 1
PHL10:15 amPhiladelphia
19h 55m
2 stops
SOF1:10 pmSofia
Nov 16
SOF2:25 pmSofia
32h 40m
1 stop
PHL4:05 pmPhiladelphia
$728

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Nov 3
PHL5:40 pmPhiladelphia
13h 05m
1 stop
SOF1:45 pmSofia
Nov 19
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$720
Lufthansa
Aug 10
PHL5:40 pmPhiladelphia
17h 20m
1 stop
SOF6:00 pmSofia
Aug 31
SOF7:00 pmSofia
28h 05m
1 stop
PHL4:05 pmPhiladelphia
$765
Lufthansa
Nov 7
PHL5:40 pmPhiladelphia
22h 05m
1 stop
SOF10:45 pmSofia
Nov 17
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$770

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 May 20, 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 11/4

3:20 pm-1:15 pm

2 stops14h 55m

Sofia

Tue 11/17

2:25 pm-10:56 pm

2 stops15h 31m

$691

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 11/4

3:20 pm-1:15 pm

2 stops14h 55m

Sofia

Tue 11/17

2:25 pm-10:56 pm

2 stops15h 31m

$693

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 11/3

6:35 pm-8:10 pm

1 stop18h 35m

Sofia

Wed 11/18

9:00 pm-4:15 pm

1 stop26h 15m

$706

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 11/1

1:00 pm-6:20 pm

2 stops22h 20m

Sofia

Tue 11/17

6:10 am-4:05 pm

1 stop16h 55m

$707

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 11/1

3:20 pm-1:10 pm

2 stops14h 50m

Sofia

Wed 11/18

2:00 pm-2:44 pm

2 stops31h 44m

$711

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 11/1

3:20 pm-1:10 pm

2 stops14h 50m

Sofia

Fri 11/20

6:10 am-3:51 pm

2 stops40h 41m

$714

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 11/3

6:35 pm-6:20 pm

2 stops16h 45m

Sofia

Wed 11/18

2:25 pm-10:56 pm

2 stops15h 31m

$715

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 11/4

3:20 pm-6:20 pm

2 stops20h 00m

Sofia

Tue 11/17

6:10 am-10:56 pm

3 stops23h 46m

$718
Quickest round-trip

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 11/3

5:40 pm-1:45 pm

1 stop13h 05m

Sofia

Thu 11/19

6:10 am-4:05 pm

1 stop16h 55m

$720

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Sun 8/2

5:40 pm-3:15 pm

2 stops38h 35m

Varna

Tue 8/18

1:35 pm-4:05 pm

2 stops33h 30m

$776

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 April, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $476.

Can stopping save me money on Philadelphia to Bulgaria flights?

You could potentially save up to 46% 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 35m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 14h 35m
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 $497Free CancellationRating
6.8
8,014 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,737 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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