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Cheap flights from Philadelphia to Bulgaria from $408

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 4/13. 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
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m
2 stops
Multiple Airlines Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$487Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
10:33 am - 12:10 pm
PHL
-
SOF
18h 37m
2 stops
United Airlines Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$489United Airlines
Wed, Apr 1 - Tue, Apr 14
Air Canada Logo
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m
2 stops
Air Canada Logo
6:10 am - 2:46 pm
SOF
-
PHL
39h 36m
2 stops
$492Air Canada
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
4:55 pm - 11:00 pm
PHL
-
SOF
47h 05m
2 stops
United Airlines Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
$494United Airlines
Sat, Apr 25 - Thu, May 7
Lufthansa Logo
5:40 pm - 6:00 pm
PHL
-
SOF
17h 20m
1 stop
Lufthansa Logo
6:10 am - 4:05 pm
SOF
-
PHL
16h 55m
1 stop
$495Lufthansa
Tue, Mar 31 - Tue, Apr 7
Air Canada Logo
4:25 pm - 12:10 pm
PHL
-
SOF
36h 45m
2 stops
Air Canada Logo
6:10 am - 2:46 pm
SOF
-
PHL
15h 36m
2 stops
$496Air Canada
Sun, Apr 12 - Tue, Apr 21
United Airlines Logo
4:55 pm - 11:00 pm
PHL
-
SOF
47h 05m
2 stops
United Airlines Logo
6:30 am - 2:48 pm
SOF
-
PHL
15h 18m
2 stops
$498United Airlines
Sat, Apr 25 - Thu, May 7
United Airlines Logo
8:02 pm - 6:20 pm
PHL
-
SOF
39h 18m
2 stops
United Airlines Logo
6:10 am - 12:16 am
SOF
-
PHL
24h 06m
2 stops
$499United Airlines
Sat, Feb 28 - Wed, Mar 11
Lufthansa Logo
5:40 pm - 9:00 am
PHL
-
VAR
32h 20m
2 stops
Lufthansa Logo
4:00 pm - 4:05 pm
VAR
-
PHL
31h 05m
2 stops
$578Lufthansa
Wed, May 6 - Wed, Aug 26
Turkish Airlines Logo
6:00 am - 8:45 am
PHL
-
VAR
43h 45m
2 stops
Turkish Airlines Logo
9:35 am - 8:19 am
VAR
-
PHL
29h 44m
2 stops
$959Turkish Airlines
Wed, May 6 - Fri, Aug 21

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Mar 31
PHL5:40 pmPhiladelphia
17h 20m
1 stop
SOF6:00 pmSofia
Apr 7
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$495
Lufthansa
May 6
PHL5:40 pmPhiladelphia
17h 25m
1 stop
SOF6:05 pmSofia
Aug 26
SOF7:00 pmSofia
28h 05m
1 stop
PHL4:05 pmPhiladelphia
$545
Lufthansa
Mar 31
PHL5:40 pmPhiladelphia
12h 25m
1 stop
SOF1:05 pmSofia
Apr 7
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$563

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Apr 1
PHL10:33 amPhiladelphia
18h 37m
2 stops
SOF12:10 pmSofia
Apr 14
SOF6:10 amSofia
16h 55m
1 stop
PHL4:05 pmPhiladelphia
$489
United Airlines
Apr 25
PHL4:55 pmPhiladelphia
47h 05m
2 stops
SOF11:00 pmSofia
May 7
SOF6:30 amSofia
16h 35m
1 stop
PHL4:05 pmPhiladelphia
$494
United Airlines
Apr 25
PHL4:55 pmPhiladelphia
47h 05m
2 stops
SOF11:00 pmSofia
May 7
SOF6:30 amSofia
15h 18m
2 stops
PHL2:48 pmPhiladelphia
$498

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 February 16, 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

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

6:10 am-4:05 pm

1 stop16h 55m

$487

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 4/1

10:33 am-12:10 pm

2 stops18h 37m

Sofia

Tue 4/14

6:10 am-4:05 pm

1 stop16h 55m

$489

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

6:10 am-2:46 pm

2 stops39h 36m

$492

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 4/25

4:55 pm-11:00 pm

2 stops47h 05m

Sofia

Thu 5/7

6:30 am-4:05 pm

1 stop16h 35m

$494

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Tue 4/7

6:10 am-4:05 pm

1 stop16h 55m

$495

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 4/12

4:25 pm-12:10 pm

2 stops36h 45m

Sofia

Tue 4/21

6:10 am-2:46 pm

2 stops15h 36m

$496

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 4/25

4:55 pm-11:00 pm

2 stops47h 05m

Sofia

Thu 5/7

6:30 am-2:48 pm

2 stops15h 18m

$498

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/28

8:02 pm-6:20 pm

2 stops39h 18m

Sofia

Wed 3/11

6:10 am-12:16 am

2 stops24h 06m

$499

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Wed 5/6

5:40 pm-9:00 am

2 stops32h 20m

Varna

Wed 8/26

4:00 pm-4:05 pm

2 stops31h 05m

$578

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Wed 5/6

6:00 am-8:45 am

2 stops43h 45m

Varna

Fri 8/21

9:35 am-8:19 am

2 stops29h 44m

$959

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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.

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

16h 45m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 16h 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
7,786 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,299 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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