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Cheap flights from Philadelphia to Bulgaria from $281

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 3/12. 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 - 10:45 pm
PHL
-
SOF
25h 15m
2 stops
Multiple Airlines Logo
6:00 am - 2:47 pm
SOF
-
PHL
38h 47m
2 stops
$462Multiple Airlines
Sun, Mar 8 - Tue, Mar 24
Multiple Airlines Logo
3:30 pm - 10:45 pm
PHL
-
SOF
25h 15m
2 stops
Multiple Airlines Logo
6:00 am - 5:05 pm
SOF
-
PHL
17h 05m
1 stop
$469Multiple Airlines
Sun, Mar 8 - Tue, Mar 24
Multiple Airlines Logo
3:30 pm - 6:40 pm
PHL
-
SOF
20h 10m
2 stops
Multiple Airlines Logo
6:10 am - 4:00 pm
SOF
-
PHL
16h 50m
1 stop
$486Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
6:47 pm - 11:10 pm
PHL
-
SOF
21h 23m
2 stops
United Airlines Logo
6:10 am - 2:46 pm
SOF
-
PHL
15h 36m
2 stops
$490United Airlines
Tue, Mar 31 - Tue, Apr 7
Lufthansa Logo
5:35 pm - 6:00 pm
PHL
-
SOF
17h 25m
1 stop
Lufthansa Logo
6:10 am - 4:00 pm
SOF
-
PHL
16h 50m
1 stop
$493Lufthansa
Tue, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
11:08 am - 2:00 pm
PHL
-
SOF
19h 52m
2 stops
Multiple Airlines Logo
7:00 am - 9:23 pm
SOF
-
PHL
21h 23m
2 stops
$494Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
8:02 pm - 1:00 pm
PHL
-
SOF
33h 58m
2 stops
United Airlines Logo
6:00 am - 2:19 pm
SOF
-
PHL
39h 19m
2 stops
$497United Airlines
Sat, Feb 14 - Tue, Feb 24
Turkish Airlines Logo
6:00 am - 2:45 am
PHL
-
VAR
37h 45m
2 stops
Turkish Airlines Logo
9:35 am - 5:38 pm
VAR
-
PHL
39h 03m
2 stops
$835Turkish Airlines
Fri, Apr 17 - Fri, Apr 24
Lufthansa Logo
5:35 pm - 8:40 am
PHL
-
VAR
32h 05m
1 stop
Lufthansa Logo
4:00 pm - 4:00 pm
VAR
-
PHL
55h 00m
2 stops
$861Lufthansa
Fri, May 15 - Tue, Jul 7
Austrian Airlines Logo
5:35 pm - 6:35 pm
PHL
-
BOJ
18h 00m
2 stops
Austrian Airlines Logo
1:05 pm - 4:00 pm
BOJ
-
PHL
57h 55m
2 stops
$1,176Austrian Airlines
Fri, May 15 - Tue, Jul 7

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Mar 31
PHL6:47 pmPhiladelphia
21h 23m
2 stops
SOF11:10 pmSofia
Apr 7
SOF6:10 amSofia
15h 36m
2 stops
PHL2:46 pmPhiladelphia
$490
United Airlines
Feb 14
PHL8:02 pmPhiladelphia
33h 58m
2 stops
SOF1:00 pmSofia
Feb 24
SOF6:00 amSofia
39h 19m
2 stops
PHL2:19 pmPhiladelphia
$497
United Airlines
Feb 11
PHL3:30 pmPhiladelphia
19h 30m
2 stops
SOF6:00 pmSofia
Feb 20
SOF6:10 amSofia
15h 37m
2 stops
PHL2:47 pmPhiladelphia
$501

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Mar 31
PHL5:35 pmPhiladelphia
17h 25m
1 stop
SOF6:00 pmSofia
Apr 7
SOF6:10 amSofia
16h 50m
1 stop
PHL4:00 pmPhiladelphia
$493
Lufthansa
Apr 2
PHL5:35 pmPhiladelphia
22h 05m
1 stop
SOF10:40 pmSofia
Apr 14
SOF6:10 amSofia
16h 50m
1 stop
PHL4:00 pmPhiladelphia
$541
Lufthansa
May 12
PHL5:35 pmPhiladelphia
12h 30m
1 stop
SOF1:05 pmSofia
May 25
SOF2:20 pmSofia
32h 40m
1 stop
PHL4:00 pmPhiladelphia
$543

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 January 15, 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

Sun 3/8

3:30 pm-10:45 pm

2 stops25h 15m

Sofia

Tue 3/24

6:00 am-2:47 pm

2 stops38h 47m

$462

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 3/8

3:30 pm-10:45 pm

2 stops25h 15m

Sofia

Tue 3/24

6:00 am-5:05 pm

1 stop17h 05m

$469

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$486

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

6:47 pm-11:10 pm

2 stops21h 23m

Sofia

Tue 4/7

6:10 am-2:46 pm

2 stops15h 36m

$490

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:35 pm-6:00 pm

1 stop17h 25m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$493

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

11:08 am-2:00 pm

2 stops19h 52m

Sofia

Tue 4/7

7:00 am-9:23 pm

2 stops21h 23m

$494

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sat 2/14

8:02 pm-1:00 pm

2 stops33h 58m

Sofia

Tue 2/24

6:00 am-2:19 pm

2 stops39h 19m

$497

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Fri 4/17

6:00 am-2:45 am

2 stops37h 45m

Varna

Fri 4/24

9:35 am-5:38 pm

2 stops39h 03m

$835

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Fri 5/15

5:35 pm-8:40 am

1 stop32h 05m

Varna

Tue 7/7

4:00 pm-4:00 pm

2 stops55h 00m

$861

PhiladelphiaBurgas

PHL - BOJ

PHLBOJ

Philadelphia

Fri 5/15

5:35 pm-6:35 pm

2 stops18h 00m

Bourgas

Tue 7/7

1:05 pm-4:00 pm

2 stops57h 55m

$1,176

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.

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

15h 05m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 15h 05m
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
7,715 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,163 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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