What airlines fly to Philadelphia?

United Airlines, Lufthansa and Austrian Airlines are the top three most popular airlines that fly to Philadelphia from Bulgaria according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 4 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Bulgaria to Philadelphia Airport?

Prices for flights from Bulgaria to Philadelphia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Bulgaria to Philadelphia Airport?

The number of operators available for flights from Bulgaria to Philadelphia Airport is 2 as of August 2025.

How old do you have to be to fly from Bulgaria to Philadelphia Airport?

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 Bulgaria to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$573 Cheap Flights from Bulgaria to Philadelphia in 2025

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Find the cheapest flights from Bulgaria to Philadelphia

Round-trip

One-way

Recent round-trip flight deals from Bulgaria to Philadelphia

6:15 am - 4:00 pmSOF-PHL

16h 45m1 stop

5:35 pm - 5:50 pmPHL-SOF

17h 15m1 stop

$573Lufthansa

Find Deal

tors, sep 4 - mån, sep 8

6:15 am - 4:00 pmSOF-PHL

16h 45m1 stop

5:35 pm - 5:50 pmPHL-SOF

17h 15m1 stop

$576Lufthansa

Find Deal

ons, sep 17 - sön, sep 21

6:15 am - 4:00 pmSOF-PHL

16h 45m1 stop

5:35 pm - 5:50 pmPHL-SOF

17h 15m1 stop

$579United Airlines

Find Deal

mån, sep 8 - mån, sep 15

2:00 pm - 11:56 amSOF-PHL

28h 56m2 stops

10:32 am - 11:00 pmPHL-SOF

29h 28m2 stops

$582United Airlines

Find Deal

tis, sep 16 - tors, sep 25

2:00 pm - 11:56 amSOF-PHL

28h 56m2 stops

5:35 pm - 1:05 pmPHL-SOF

12h 30m1 stop

$584United Airlines

Find Deal

tis, sep 16 - tors, sep 25

7:00 am - 5:20 pmSOF-PHL

17h 20m2 stops

1:35 pm - 2:00 pmPHL-SOF

17h 25m2 stops

$599

Find Deal

fre, sep 19 - tors, sep 25

7:00 am - 5:20 pmSOF-PHL

17h 20m2 stops

1:35 pm - 2:00 pmPHL-SOF

17h 25m2 stops

$605KLM

Find Deal

fre, sep 19 - tis, sep 23

8:00 am - 4:00 pmSOF-PHL

15h 00m2 stops

4:50 pm - 11:40 amPHL-SOF

35h 50m2 stops

$616Austrian Airlines

Find Deal

sön, sep 21 - lör, sep 27

4:05 pm - 4:00 pmSOF-PHL

54h 55m2 stops

4:50 pm - 11:40 amPHL-SOF

35h 50m2 stops

$635Austrian Airlines

Find Deal

fre, sep 19 - lör, sep 27

6:55 pm - 4:00 pmSOF-PHL

28h 05m3 stops

5:35 pm - 12:05 pmPHL-SOF

35h 30m3 stops

$972

Find Deal

mån, sep 8 - mån, sep 15

Lufthansa flights from Bulgaria to Philadelphia

Our best Lufthansa deals on Bulgaria to Philadelphia flight tickets

Lufthansa

Sep 4

SOF6:15 amSofia

16h 45m

1 stop

PHL4:00 pmPhiladelphia

Sep 8

PHL5:35 pmPhiladelphia

17h 15m

1 stop

SOF5:50 pmSofia

$573

Find similar

Lufthansa

Sep 17

SOF6:15 amSofia

16h 45m

1 stop

PHL4:00 pmPhiladelphia

Sep 21

PHL5:35 pmPhiladelphia

17h 15m

1 stop

SOF5:50 pmSofia

$576

Find similar

Lufthansa

Sep 16

SOF2:00 pmSofia

33h 00m

1 stop

PHL4:00 pmPhiladelphia

Sep 27

PHL3:25 pmPhiladelphia

14h 40m

2 stops

SOF1:05 pmSofia

$595

Find similar

Austrian Airlines flights from Bulgaria to Philadelphia

Our best Austrian Airlines deals on Bulgaria to Philadelphia flight tickets

Austrian Airlines

Sep 21

SOF8:00 amSofia

15h 00m

2 stops

PHL4:00 pmPhiladelphia

Sep 27

PHL4:50 pmPhiladelphia

35h 50m

2 stops

SOF11:40 amSofia

$616

Find similar

Austrian Airlines

Sep 19

SOF4:05 pmSofia

54h 55m

2 stops

PHL4:00 pmPhiladelphia

Sep 27

PHL4:50 pmPhiladelphia

35h 50m

2 stops

SOF11:40 amSofia

$635

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

tors 9/4

6:15 am-4:00 pm

1 stop16h 45m

Philadelphia

mån 9/8

5:35 pm-5:50 pm

1 stop17h 15m

$573

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

ons 9/17

6:15 am-4:00 pm

1 stop16h 45m

Philadelphia

sön 9/21

5:35 pm-5:50 pm

1 stop17h 15m

$576

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

mån 9/8

6:15 am-4:00 pm

1 stop16h 45m

Philadelphia

mån 9/15

5:35 pm-5:50 pm

1 stop17h 15m

$579

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

tis 9/16

2:00 pm-11:56 am

2 stops28h 56m

Philadelphia

tors 9/25

10:32 am-11:00 pm

2 stops29h 28m

$582

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

tis 9/16

2:00 pm-11:56 am

2 stops28h 56m

Philadelphia

tors 9/25

5:35 pm-1:05 pm

1 stop12h 30m

$584

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

fre 9/19

7:00 am-5:20 pm

2 stops17h 20m

Philadelphia

tors 9/25

1:35 pm-2:00 pm

2 stops17h 25m

$599

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

fre 9/19

7:00 am-5:20 pm

2 stops17h 20m

Philadelphia

tis 9/23

1:35 pm-2:00 pm

2 stops17h 25m

$605

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

sön 9/21

8:00 am-4:00 pm

2 stops15h 00m

Philadelphia

lör 9/27

4:50 pm-11:40 am

2 stops35h 50m

$616

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

fre 9/19

4:05 pm-4:00 pm

2 stops54h 55m

Philadelphia

lör 9/27

4:50 pm-11:40 am

2 stops35h 50m

$635

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

mån 9/8

6:55 pm-4:00 pm

3 stops28h 05m

Philadelphia

mån 9/15

5:35 pm-12:05 pm

3 stops35h 30m

$972

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Bulgaria to Philadelphia

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

Prices

Airlines

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Bulgaria to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $579. On the other hand, Thursday is the most expensive day to depart from Bulgaria because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $986.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Bulgaria to Philadelphia in the evening for as low as $651. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $742.

Can stopping save me money on Bulgaria to Philadelphia flights?

You could potentially save up to 4% on your flight if you consider stops on a Bulgaria to Philadelphia flight.

Cheap Bulgaria to Philadelphia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bulgaria to Philadelphia

Best Price Found	$573
Fastest flight time	15h 00m
Direct flights	None
Airports in Philadelphia	1 airport

The best flight deal from Bulgaria to Philadelphia found on momondo in the last 72 hours is $573

The fastest flight from Bulgaria to Philadelphia takes 15h 00m

There are no direct flights from Bulgaria to Philadelphia. Popular non-direct route for this connection is Sofia Airport - Philadelphia Airport.

There is 1 airport near Philadelphia: Philadelphia (PHL)

Search flight deals

When did momondo last update prices for flights from Bulgaria to Philadelphia Airport?
Prices for flights from Bulgaria to Philadelphia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Bulgaria to Philadelphia Airport?
The number of operators available for flights from Bulgaria to Philadelphia Airport is 2 as of August 2025.
How old do you have to be to fly from Bulgaria to Philadelphia Airport?
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 Bulgaria to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Bulgaria to Philadelphia

Compare and see reviews for airlines that fly from Bulgaria to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $588	Free Cancellation	Rating 7.4 8,904 reviews		Search United Airlines flights
Lufthansa	PriceFrom $636	Free Cancellation	Rating 6.8 7,276 reviews		Search Lufthansa flights

Wildwood

Rehoboth Beach

Cape May

Ocean City

Wildwood Crest

King of Prussia

Reading

Dewey Beach

Newark

Dover

North Wildwood

Cherry Hill

Lewes

Avalon

Stone Harbor

Vineland

Exton

Essington

New Castle

Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from Bulgaria to Philadelphia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Bulgaria to Philadelphia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Bulgaria to Philadelphia with flexible booking policies on momondo?

Yes. All flights to Philadelphia from Bulgaria on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Bulgaria to Philadelphia?

Once you have performed a search for Bulgaria to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Bulgaria to Philadelphia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Bulgaria to Philadelphia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Philadelphia and let you know when they change.