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Cheap flights from Philadelphia to Bulgaria from $282

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 10/18. 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.
United Airlines Logo
5:40 pm - 1:25 pm
PHL
-
SOF
12h 45m
1 stop
United Airlines Logo
6:25 am - 4:05 pm
SOF
-
PHL
16h 40m
1 stop
$713United Airlines
Wed, Aug 19 - Tue, Nov 3
United Airlines Logo
7:45 pm - 11:15 pm
PHL
-
SOF
20h 30m
2 stops
United Airlines Logo
6:10 am - 6:53 pm
SOF
-
PHL
19h 43m
2 stops
$718United Airlines
Mon, Aug 3 - Wed, Aug 26
SWISS Logo
10:34 am - 10:20 am
PHL
-
SOF
40h 46m
2 stops
SWISS Logo
3:40 pm - 5:54 pm
SOF
-
PHL
33h 14m
2 stops
$725SWISS
Tue, Aug 18 - Mon, Aug 24
Air Canada Logo
10:05 am - 1:25 pm
PHL
-
SOF
20h 20m
2 stops
Air Canada Logo
6:00 am - 10:56 pm
SOF
-
PHL
23h 56m
2 stops
$726Air Canada
Wed, Aug 19 - Tue, Nov 3
United Airlines Logo
10:05 am - 6:00 pm
PHL
-
SOF
24h 55m
2 stops
United Airlines Logo
6:10 am - 2:40 pm
SOF
-
PHL
39h 30m
2 stops
$728United Airlines
Tue, Aug 4 - Thu, Aug 20
United Airlines Logo
3:10 pm - 10:50 pm
PHL
-
SOF
24h 40m
2 stops
United Airlines Logo
6:10 am - 6:53 pm
SOF
-
PHL
19h 43m
2 stops
$729United Airlines
Tue, Aug 4 - Wed, Aug 26
Multiple Airlines Logo
5:40 pm - 1:05 pm
PHL
-
SOF
12h 25m
1 stop
Multiple Airlines Logo
3:40 pm - 5:54 pm
SOF
-
PHL
33h 14m
2 stops
$730Multiple Airlines
Tue, Aug 18 - Mon, Aug 24
Air Canada Logo
4:20 pm - 6:00 pm
PHL
-
SOF
42h 40m
2 stops
Air Canada Logo
6:00 am - 10:56 pm
SOF
-
PHL
23h 56m
2 stops
$731Air Canada
Sun, Aug 23 - Tue, Nov 3
Multiple Airlines Logo
5:40 pm - 2:55 pm
PHL
-
SOF
14h 15m
2 stops
Multiple Airlines Logo
6:10 am - 10:46 pm
SOF
-
PHL
23h 36m
2 stops
$735Multiple Airlines
Sun, Sep 13 - Tue, Sep 29
Austrian Airlines Logo
10:50 am - 3:15 pm
PHL
-
VAR
21h 25m
2 stops
Austrian Airlines Logo
4:00 pm - 4:05 pm
VAR
-
PHL
31h 05m
2 stops
$1,136Austrian Airlines
Tue, Sep 22 - Tue, Oct 13

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SWISS flights from Philadelphia to Bulgaria

Our best SWISS deals on Philadelphia to Bulgaria flight tickets
SWISS
Aug 18
PHL10:34 amPhiladelphia
40h 46m
2 stops
SOF10:20 amSofia
Aug 24
SOF3:40 pmSofia
33h 14m
2 stops
PHL5:54 pmPhiladelphia
$725
SWISS
Aug 25
PHL5:40 pmPhiladelphia
33h 40m
2 stops
SOF10:20 amSofia
Nov 2
SOF3:00 pmSofia
37h 26m
2 stops
PHL9:26 pmPhiladelphia
$755
SWISS
Sep 30
PHL11:20 amPhiladelphia
16h 00m
2 stops
SOF10:20 amSofia
Oct 6
SOF1:05 pmSofia
35h 49m
2 stops
PHL5:54 pmPhiladelphia
$785

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Aug 19
PHL5:40 pmPhiladelphia
12h 45m
1 stop
SOF1:25 pmSofia
Nov 3
SOF6:25 amSofia
16h 40m
1 stop
PHL4:05 pmPhiladelphia
$713
United Airlines
Aug 3
PHL7:45 pmPhiladelphia
20h 30m
2 stops
SOF11:15 pmSofia
Aug 26
SOF6:10 amSofia
19h 43m
2 stops
PHL6:53 pmPhiladelphia
$718
United Airlines
Aug 4
PHL10:05 amPhiladelphia
24h 55m
2 stops
SOF6:00 pmSofia
Aug 20
SOF6:10 amSofia
39h 30m
2 stops
PHL2:40 pmPhiladelphia
$728

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 July 22, 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
Quickest round-trip

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 8/19

5:40 pm-1:25 pm

1 stop12h 45m

Sofia

Tue 11/3

6:25 am-4:05 pm

1 stop16h 40m

$713

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 8/3

7:45 pm-11:15 pm

2 stops20h 30m

Sofia

Wed 8/26

6:10 am-6:53 pm

2 stops19h 43m

$718

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/18

10:34 am-10:20 am

2 stops40h 46m

Sofia

Mon 8/24

3:40 pm-5:54 pm

2 stops33h 14m

$725

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Wed 8/19

10:05 am-1:25 pm

2 stops20h 20m

Sofia

Tue 11/3

6:00 am-10:56 pm

2 stops23h 56m

$726

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/4

10:05 am-6:00 pm

2 stops24h 55m

Sofia

Thu 8/20

6:10 am-2:40 pm

2 stops39h 30m

$728

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/4

3:10 pm-10:50 pm

2 stops24h 40m

Sofia

Wed 8/26

6:10 am-6:53 pm

2 stops19h 43m

$729

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/18

5:40 pm-1:05 pm

1 stop12h 25m

Sofia

Mon 8/24

3:40 pm-5:54 pm

2 stops33h 14m

$730

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 8/23

4:20 pm-6:00 pm

2 stops42h 40m

Sofia

Tue 11/3

6:00 am-10:56 pm

2 stops23h 56m

$731

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Sun 9/13

5:40 pm-2:55 pm

2 stops14h 15m

Sofia

Tue 9/29

6:10 am-10:46 pm

2 stops23h 36m

$735

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Tue 9/22

10:50 am-3:15 pm

2 stops21h 25m

Varna

Tue 10/13

4:00 pm-4:05 pm

2 stops31h 05m

$1,136

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 15m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 14h 15m
There are no direct flights from Philadelphia to Bulgaria. There are no popular flight routes from Philadelphia to Bulgaria.
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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
8,152 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
10,014 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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