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Cheap flights from Philadelphia to Bulgaria from $329

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 10/1. 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
6:00 am - 4:05 pmSOF-PHL
17h 05m1 stop
$506Lufthansa
Find Deal
Wed, Oct 8 - Thu, Nov 27
United Airlines Logo
6:30 am - 11:15 amPHL-SOF
21h 45m2 stops
United Airlines Logo
6:00 am - 2:47 pmSOF-PHL
15h 47m2 stops
$511United Airlines
Find Deal
Tue, Oct 7 - Tue, Nov 25
United Airlines Logo
10:32 am - 11:00 pmPHL-SOF
29h 28m2 stops
United Airlines Logo
2:35 pm - 3:51 pmSOF-PHL
32h 16m2 stops
$513United Airlines
Find Deal
Wed, Oct 8 - Thu, Nov 27
United Airlines Logo
6:42 pm - 10:50 pmPHL-SOF
21h 08m2 stops
United Airlines Logo
2:35 pm - 10:56 pmSOF-PHL
15h 21m2 stops
$517United Airlines
Find Deal
Tue, Oct 7 - Thu, Nov 27
Multiple Airlines Logo
5:35 pm - 5:50 pmPHL-SOF
17h 15m1 stop
Multiple Airlines Logo
6:00 am - 2:47 pmSOF-PHL
15h 47m2 stops
$520Multiple Airlines
Find Deal
Tue, Oct 7 - Thu, Nov 27
United Airlines Logo
5:35 pm - 1:15 pmPHL-SOF
12h 40m1 stop
United Airlines Logo
2:25 pm - 4:00 pmSOF-PHL
32h 35m1 stop
$526United Airlines
Find Deal
Wed, Oct 8 - Wed, Nov 26
British Airways Logo
6:30 pm - 7:10 pmPHL-SOF
17h 40m1 stop
British Airways Logo
9:00 pm - 4:15 pmSOF-PHL
26h 15m1 stop
$529British Airways
Find Deal
Sun, Oct 5 - Wed, Nov 26
Lufthansa Logo
5:35 pm - 5:50 pmPHL-SOF
17h 15m1 stop
Lufthansa Logo
6:15 am - 4:00 pmSOF-PHL
16h 45m1 stop
$532Lufthansa
Find Deal
Wed, Oct 8 - Wed, Oct 22
Air Canada Logo
4:50 pm - 11:15 amPHL-SOF
35h 25m2 stops
Air Canada Logo
6:00 am - 2:47 pmSOF-PHL
15h 47m2 stops
$543Air Canada
Find Deal
Sat, Oct 4 - Tue, Nov 25
Air Canada Logo
4:50 pm - 1:00 pmPHL-SOF
37h 10m2 stops
Air Canada Logo
6:20 am - 3:49 pmSOF-PHL
40h 29m2 stops
$549Air Canada
Find Deal
Sat, Oct 11 - Tue, Oct 21

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Oct 8
PHL5:35 pmPhiladelphia
12h 40m
1 stop
SOF1:15 pmSofia
Nov 27
SOF6:00 amSofia
17h 05m
1 stop
PHL4:05 pmPhiladelphia
$506
Find similar
Lufthansa
Oct 8
PHL5:35 pmPhiladelphia
17h 15m
1 stop
SOF5:50 pmSofia
Oct 22
SOF6:15 amSofia
16h 45m
1 stop
PHL4:00 pmPhiladelphia
$532
Find similar
Lufthansa
Oct 11
PHL4:50 pmPhiladelphia
35h 25m
2 stops
SOF11:15 amSofia
Oct 22
SOF6:15 amSofia
16h 45m
1 stop
PHL4:00 pmPhiladelphia
$548
Find similar

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Oct 7
PHL6:30 amPhiladelphia
21h 45m
2 stops
SOF11:15 amSofia
Nov 25
SOF6:00 amSofia
15h 47m
2 stops
PHL2:47 pmPhiladelphia
$511
Find similar
United Airlines
Oct 8
PHL10:32 amPhiladelphia
29h 28m
2 stops
SOF11:00 pmSofia
Nov 27
SOF2:35 pmSofia
32h 16m
2 stops
PHL3:51 pmPhiladelphia
$513
Find similar
United Airlines
Oct 7
PHL6:42 pmPhiladelphia
21h 08m
2 stops
SOF10:50 pmSofia
Nov 27
SOF2:35 pmSofia
15h 21m
2 stops
PHL10:56 pmPhiladelphia
$517
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 September 17, 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

Wed 10/8

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

Thu 11/27

6:00 am-4:05 pm

1 stop17h 05m

$506

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/7

6:30 am-11:15 am

2 stops21h 45m

Sofia

Tue 11/25

6:00 am-2:47 pm

2 stops15h 47m

$511

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 10/8

10:32 am-11:00 pm

2 stops29h 28m

Sofia

Thu 11/27

2:35 pm-3:51 pm

2 stops32h 16m

$513

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/7

6:42 pm-10:50 pm

2 stops21h 08m

Sofia

Thu 11/27

2:35 pm-10:56 pm

2 stops15h 21m

$517

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/7

5:35 pm-5:50 pm

1 stop17h 15m

Sofia

Thu 11/27

6:00 am-2:47 pm

2 stops15h 47m

$520

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 10/8

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

Wed 11/26

2:25 pm-4:00 pm

1 stop32h 35m

$526

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/5

6:30 pm-7:10 pm

1 stop17h 40m

Sofia

Wed 11/26

9:00 pm-4:15 pm

1 stop26h 15m

$529

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 10/8

5:35 pm-5:50 pm

1 stop17h 15m

Sofia

Wed 10/22

6:15 am-4:00 pm

1 stop16h 45m

$532

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 10/4

4:50 pm-11:15 am

2 stops35h 25m

Sofia

Tue 11/25

6:00 am-2:47 pm

2 stops15h 47m

$543

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 10/11

4:50 pm-1:00 pm

2 stops37h 10m

Sofia

Tue 10/21

6:20 am-3:49 pm

2 stops40h 29m

$549

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 $582Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
United AirlinesPriceFrom $646Free CancellationRating
7.4
8,926 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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