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Cheap flights from Philadelphia to Bulgaria from $457

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 6/17. 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

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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.
United Airlines Logo
6:10 am - 6:40 pm
PHL
-
SOF
29h 30m
2 stops
United Airlines Logo
6:10 am - 2:40 pm
SOF
-
PHL
39h 30m
2 stops
$719United Airlines
Tue, Aug 4 - Thu, Aug 20
Multiple Airlines Logo
10:45 am - 12:10 pm
PHL
-
SOF
18h 25m
2 stops
Multiple Airlines Logo
6:55 pm - 4:05 pm
SOF
-
PHL
28h 10m
2 stops
$755Multiple Airlines
Mon, Jul 27 - Wed, Aug 12
Multiple Airlines Logo
6:10 am - 12:10 pm
PHL
-
SOF
23h 00m
2 stops
Multiple Airlines Logo
7:00 pm - 4:05 pm
SOF
-
PHL
28h 05m
1 stop
$758Multiple Airlines
Mon, Jul 27 - Wed, Aug 12
Lufthansa Logo
5:40 pm - 10:40 pm
PHL
-
SOF
22h 00m
1 stop
Lufthansa Logo
7:00 pm - 4:05 pm
SOF
-
PHL
28h 05m
1 stop
$761Lufthansa
Mon, Jul 27 - Wed, Aug 12
Multiple Airlines Logo
5:40 pm - 6:20 pm
PHL
-
BOJ
17h 40m
1 stop
Multiple Airlines Logo
1:05 pm - 4:05 pm
BOJ
-
PHL
58h 00m
2 stops
$787Multiple Airlines
Mon, Sep 7 - Sun, Sep 13
Multiple Airlines Logo
10:05 am - 6:40 pm
PHL
-
SOF
25h 35m
2 stops
Multiple Airlines Logo
6:30 am - 4:05 pm
SOF
-
PHL
16h 35m
1 stop
$796Multiple Airlines
Tue, Aug 4 - Thu, Aug 20
Multiple Airlines Logo
3:25 pm - 6:20 pm
PHL
-
BOJ
19h 55m
2 stops
Multiple Airlines Logo
1:05 pm - 4:05 pm
BOJ
-
PHL
58h 00m
2 stops
$796Multiple Airlines
Mon, Sep 7 - Sun, Sep 13
Air Canada Logo
10:05 am - 6:40 pm
PHL
-
SOF
25h 35m
2 stops
Air Canada Logo
6:30 am - 10:46 pm
SOF
-
PHL
23h 16m
2 stops
$804Air Canada
Tue, Aug 4 - Thu, Aug 20
Lufthansa Logo
5:40 pm - 6:20 pm
PHL
-
BOJ
17h 40m
1 stop
Lufthansa Logo
9:10 am - 4:05 pm
BOJ
-
PHL
13h 55m
1 stop
$962Lufthansa
Mon, Sep 7 - Sun, Sep 13
Austrian Airlines Logo
5:40 pm - 3:15 pm
PHL
-
VAR
38h 35m
2 stops
Austrian Airlines Logo
4:00 pm - 4:05 pm
VAR
-
PHL
31h 05m
2 stops
$1,004Austrian Airlines
Wed, Jul 8 - Wed, Jul 15

Lufthansa flights from Philadelphia to Bulgaria

Our best Lufthansa deals on Philadelphia to Bulgaria flight tickets
Lufthansa
Jul 27
PHL5:40 pmPhiladelphia
22h 00m
1 stop
SOF10:40 pmSofia
Aug 12
SOF7:00 pmSofia
28h 05m
1 stop
PHL4:05 pmPhiladelphia
$761
Lufthansa
Aug 7
PHL5:40 pmPhiladelphia
21h 50m
1 stop
SOF10:30 pmSofia
Aug 23
SOF6:10 amSofia
25h 49m
2 stops
PHL12:59 amPhiladelphia
$866
Lufthansa
Aug 4
PHL5:40 pmPhiladelphia
22h 10m
1 stop
SOF10:50 pmSofia
Aug 20
SOF6:30 amSofia
16h 35m
1 stop
PHL4:05 pmPhiladelphia
$876

United Airlines flights from Philadelphia to Bulgaria

Our best United Airlines deals on Philadelphia to Bulgaria flight tickets
United Airlines
Aug 4
PHL6:10 amPhiladelphia
29h 30m
2 stops
SOF6:40 pmSofia
Aug 20
SOF6:10 amSofia
39h 30m
2 stops
PHL2:40 pmPhiladelphia
$719
United Airlines
Jul 28
PHL10:39 amPhiladelphia
29h 36m
2 stops
SOF11:15 pmSofia
Aug 11
SOF12:55 pmSofia
32h 26m
2 stops
PHL2:21 pmPhiladelphia
$814
United Airlines
Aug 4
PHL5:40 pmPhiladelphia
12h 25m
1 stop
SOF1:05 pmSofia
Aug 20
SOF6:10 amSofia
22h 17m
2 stops
PHL9:27 pmPhiladelphia
$816

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 June 4, 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

Tue 8/4

6:10 am-6:40 pm

2 stops29h 30m

Sofia

Thu 8/20

6:10 am-2:40 pm

2 stops39h 30m

$719

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 7/27

10:45 am-12:10 pm

2 stops18h 25m

Sofia

Wed 8/12

6:55 pm-4:05 pm

2 stops28h 10m

$755

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 7/27

6:10 am-12:10 pm

2 stops23h 00m

Sofia

Wed 8/12

7:00 pm-4:05 pm

1 stop28h 05m

$758

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Mon 7/27

5:40 pm-10:40 pm

1 stop22h 00m

Sofia

Wed 8/12

7:00 pm-4:05 pm

1 stop28h 05m

$761

PhiladelphiaBurgas

PHL - BOJ

PHLBOJ

Philadelphia

Mon 9/7

5:40 pm-6:20 pm

1 stop17h 40m

Bourgas

Sun 9/13

1:05 pm-4:05 pm

2 stops58h 00m

$787

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/4

10:05 am-6:40 pm

2 stops25h 35m

Sofia

Thu 8/20

6:30 am-4:05 pm

1 stop16h 35m

$796

PhiladelphiaBurgas

PHL - BOJ

PHLBOJ

Philadelphia

Mon 9/7

3:25 pm-6:20 pm

2 stops19h 55m

Bourgas

Sun 9/13

1:05 pm-4:05 pm

2 stops58h 00m

$796

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 8/4

10:05 am-6:40 pm

2 stops25h 35m

Sofia

Thu 8/20

6:30 am-10:46 pm

2 stops23h 16m

$804
Quickest round-trip

PhiladelphiaBurgas

PHL - BOJ

PHLBOJ

Philadelphia

Mon 9/7

5:40 pm-6:20 pm

1 stop17h 40m

Bourgas

Sun 9/13

9:10 am-4:05 pm

1 stop13h 55m

$962

PhiladelphiaVarna

PHL - VAR

PHLVAR

Philadelphia

Wed 7/8

5:40 pm-3:15 pm

2 stops38h 35m

Varna

Wed 7/15

4:00 pm-4:05 pm

2 stops31h 05m

$1,004

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 April, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $476.

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

17h 15m

Direct flights

None
The fastest flight from Philadelphia to Bulgaria takes 17h 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
8,036 reviews
Search Lufthansa flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
9,774 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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