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Cheap flights from Philadelphia to Bulgaria from $275

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 12/1. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:40 pm - 1:35 pm
PHL
-
SOF
12h 55m
1 stop
Multiple Airlines Logo
2:00 pm - 2:44 pm
SOF
-
PHL
31h 44m
2 stops
$701Multiple Airlines
Sun, Oct 18 - Wed, Nov 18
Multiple Airlines Logo
3:25 pm - 6:10 pm
PHL
-
SOF
19h 45m
2 stops
Multiple Airlines Logo
2:00 pm - 2:44 pm
SOF
-
PHL
31h 44m
2 stops
$712Multiple Airlines
Sun, Oct 18 - Wed, Nov 18
Lufthansa Logo
5:40 pm - 1:35 pm
PHL
-
SOF
12h 55m
1 stop
Lufthansa Logo
7:00 pm - 4:05 pm
SOF
-
PHL
28h 05m
1 stop
$715Lufthansa
Sun, Oct 18 - Wed, Nov 18
Lufthansa Logo
5:40 pm - 1:35 pm
PHL
-
SOF
12h 55m
1 stop
Lufthansa Logo
2:10 pm - 4:05 pm
SOF
-
PHL
32h 55m
1 stop
$715Lufthansa
Sun, Oct 18 - Mon, Nov 16
Multiple Airlines Logo
5:40 pm - 7:35 pm
PHL
-
VAR
18h 55m
1 stop
Multiple Airlines Logo
4:00 pm - 4:05 pm
VAR
-
PHL
31h 05m
2 stops
$722Multiple Airlines
Sun, Oct 18 - Mon, Nov 16
Multiple Airlines Logo
4:20 pm - 2:55 pm
PHL
-
SOF
15h 35m
2 stops
Multiple Airlines Logo
3:00 pm - 9:34 pm
SOF
-
PHL
37h 34m
2 stops
$726Multiple Airlines
Sun, Oct 18 - Mon, Nov 16
United Airlines Logo
10:40 am - 12:10 pm
PHL
-
SOF
18h 30m
2 stops
United Airlines Logo
6:25 am - 10:56 pm
SOF
-
PHL
22h 31m
2 stops
$744United Airlines
Wed, Oct 14 - Fri, Oct 30
Lufthansa Logo
5:40 pm - 6:10 pm
PHL
-
SOF
17h 30m
1 stop
Lufthansa Logo
7:00 pm - 5:05 pm
SOF
-
PHL
28h 05m
1 stop
$745Lufthansa
Sun, Oct 11 - Mon, Oct 26
United Airlines Logo
5:40 pm - 1:25 pm
PHL
-
SOF
12h 45m
1 stop
United Airlines Logo
6:25 am - 10:56 pm
SOF
-
PHL
22h 31m
2 stops
$751United Airlines
Wed, Oct 14 - Fri, Oct 30
United Airlines Logo
5:40 pm - 6:00 pm
PHL
-
SOF
17h 20m
1 stop
United Airlines Logo
6:25 am - 10:56 pm
SOF
-
PHL
22h 31m
2 stops
$751United Airlines
Tue, Oct 13 - Fri, Oct 30

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Austrian Airlines flights from Philadelphia to Bulgaria

Our best Austrian Airlines deals on Philadelphia to Bulgaria flight tickets
Austrian Airlines
Sep 30
PHL10:50 amPhiladelphia
17h 50m
2 stops
SOF11:40 amSofia
Oct 8
SOF6:55 pmSofia
34h 51m
2 stops
PHL10:46 pmPhiladelphia
$805
Austrian Airlines
Aug 7
PHL5:40 pmPhiladelphia
23h 15m
2 stops
SOF11:55 pmSofia
Aug 25
SOF6:55 pmSofia
28h 10m
2 stops
PHL4:05 pmPhiladelphia
$877
Austrian Airlines
Aug 7
PHL5:40 pmPhiladelphia
23h 15m
2 stops
SOF11:55 pmSofia
Aug 25
SOF6:55 pmSofia
28h 10m
2 stops
PHL4:05 pmPhiladelphia
$945

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Oct 18
PHL5:40 pmPhiladelphia
12h 55m
1 stop
SOF1:35 pmSofia
Nov 18
SOF7:00 pmSofia
28h 05m
1 stop
PHL4:05 pmPhiladelphia
$715
Lufthansa
Aug 10
PHL5:40 pmPhiladelphia
17h 20m
1 stop
SOF6:00 pmSofia
Aug 25
SOF6:40 pmSofia
28h 25m
1 stop
PHL4:05 pmPhiladelphia
$733
Lufthansa
Oct 11
PHL5:40 pmPhiladelphia
17h 30m
1 stop
SOF6:10 pmSofia
Oct 26
SOF7:00 pmSofia
28h 05m
1 stop
PHL5:05 pmPhiladelphia
$745

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 August 1, 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

Sun 10/18

5:40 pm-1:35 pm

1 stop12h 55m

Sofia

Wed 11/18

2:00 pm-2:44 pm

2 stops31h 44m

$701

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/18

3:25 pm-6:10 pm

2 stops19h 45m

Sofia

Wed 11/18

2:00 pm-2:44 pm

2 stops31h 44m

$712

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/18

5:40 pm-1:35 pm

1 stop12h 55m

Sofia

Wed 11/18

7:00 pm-4:05 pm

1 stop28h 05m

$715

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/18

5:40 pm-1:35 pm

1 stop12h 55m

Sofia

Mon 11/16

2:10 pm-4:05 pm

1 stop32h 55m

$715

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Sun 10/18

5:40 pm-7:35 pm

1 stop18h 55m

Varna

Mon 11/16

4:00 pm-4:05 pm

2 stops31h 05m

$722

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/18

4:20 pm-2:55 pm

2 stops15h 35m

Sofia

Mon 11/16

3:00 pm-9:34 pm

2 stops37h 34m

$726

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 10/14

10:40 am-12:10 pm

2 stops18h 30m

Sofia

Fri 10/30

6:25 am-10:56 pm

2 stops22h 31m

$744

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 10/11

5:40 pm-6:10 pm

1 stop17h 30m

Sofia

Mon 10/26

7:00 pm-5:05 pm

1 stop28h 05m

$745
Quickest round-trip

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 10/14

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Fri 10/30

6:25 am-10:56 pm

2 stops22h 31m

$751

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-6:00 pm

1 stop17h 20m

Sofia

Fri 10/30

6:25 am-10:56 pm

2 stops22h 31m

$751

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 November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $546.

Can stopping save me money on Philadelphia to Bulgaria flights?

You could potentially save up to 40% 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
8,175 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
10,062 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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