What is the cheapest airline that flies from Pennsylvania to Sofia?

United Airlines and Lufthansa are the most popular carriers operating from Pennsylvania to Sofia

How long does it take to fly to Sofia?

Flight times vary depending on what airport in Pennsylvania you fly out of and what airport in Sofia you fly into. For example, flying from Philadelphia to Sofia takes 12h 45m on average. On the other hand, flying from Pittsburgh to Sofia takes 14h 23m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Pennsylvania to Sofia Airport?

Prices for flights from Pennsylvania to Sofia Airport refresh daily.

How many operators does momondo search for flights from Pennsylvania to Sofia Airport?

As of November 2026, there are 2 operators available to choose from for flights from Pennsylvania to Sofia Airport.

How old do you have to be to fly from Pennsylvania to Sofia Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Sofia Airport.

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

The required travel and health documents for your Sofia 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 Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$520 Cheap Flights from Pennsylvania to Sofia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pennsylvania to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 1:15 pmPHL Philadelphia-SOF Sofia

14h 55m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

6:45 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 20m2 stops Vienna Intl Frankfurt am Main

$719Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

4:35 pm - 10:55 pmPHL Philadelphia-SOF Sofia

23h 20m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:25 am - 10:45 pmSOF Sofia-PHL Philadelphia

23h 20m2 stops Frankfurt am Main Toronto Pearson Intl

$722Multiple Airlines

Tue, Mar 2 - Fri, Mar 5

3:52 pm - 1:15 pmPIT Pittsburgh-SOF Sofia

14h 23m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 6:36 pmSOF Sofia-PIT Pittsburgh

43h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$728United Airlines

Sun, Feb 7 - Thu, Feb 11

6:00 am - 12:20 pmPIT Pittsburgh-SOF Sofia

23h 20m2 stops Newark Munich Franz Josef Strauss

1:55 pm - 6:34 pmSOF Sofia-PIT Pittsburgh

35h 39m2 stops Frankfurt am Main Toronto Pearson Intl

$730United Airlines

Sun, Apr 25 - Thu, Apr 29

6:15 am - 1:15 pmPHL Philadelphia-SOF Sofia

24h 00m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:25 am - 10:46 pmSOF Sofia-PHL Philadelphia

23h 21m2 stops Frankfurt am Main Toronto Pearson Intl

$740United Airlines

Tue, Feb 16 - Thu, Feb 18

9:15 am - 1:25 pmPHL Philadelphia-SOF Sofia

21h 10m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

6:25 am - 10:45 pmSOF Sofia-PHL Philadelphia

23h 20m2 stops Frankfurt am Main Toronto Pearson Intl

$760Air Canada

Tue, Mar 2 - Fri, Mar 5

9:34 pm - 8:10 pmPHL Philadelphia-SOF Sofia

39h 36m2 stops Boston Logan Intl London Heathrow

5:15 pm - 1:45 pmSOF Sofia-PHL Philadelphia

27h 30m1 stop London Heathrow

$766British Airways

Mon, Dec 7 - Mon, Dec 14

2:10 pm - 12:20 pmPIT Pittsburgh-SOF Sofia

15h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:20 am - 4:57 pmSOF Sofia-PIT Pittsburgh

17h 37m2 stops Frankfurt am Main Chicago O'Hare Intl

$793Lufthansa

Wed, Apr 14 - Wed, Jun 16

2:10 pm - 11:05 pmPIT Pittsburgh-SOF Sofia

25h 55m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:20 am - 4:57 pmSOF Sofia-PIT Pittsburgh

17h 37m2 stops Frankfurt am Main Chicago O'Hare Intl

$793Lufthansa

Wed, Apr 14 - Tue, Jun 15

7:20 pm - 6:20 pmPIT Pittsburgh-SOF Sofia

16h 00m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 pm - 11:14 pmSOF Sofia-PIT Pittsburgh

35h 09m2 stops Munich Franz Josef Strauss Newark

$811Lufthansa

Sun, Jan 31 - Mon, Feb 8

Cheap last minute flights

Enter your travel dates to find the best prices.

10:30 am - 10:55 pmPHL Philadelphia-SOF Sofia

29h 25m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

2:10 pm - 4:21 pmSOF Sofia-PHL Philadelphia

33h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$722United Airlines

Tue, Nov 17 - Wed, Nov 25

9:45 am - 10:55 pmPHL Philadelphia-SOF Sofia

30h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:10 pm - 4:21 pmSOF Sofia-PHL Philadelphia

33h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$722United Airlines

Mon, Nov 16 - Tue, Nov 24

4:59 pm - 10:55 pmPHL Philadelphia-SOF Sofia

22h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:10 pm - 4:21 pmSOF Sofia-PHL Philadelphia

33h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$722United Airlines

Tue, Nov 17 - Tue, Nov 24

1:16 pm - 10:55 pmPHL Philadelphia-SOF Sofia

26h 39m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:10 pm - 4:21 pmSOF Sofia-PHL Philadelphia

33h 11m2 stops Frankfurt am Main Toronto Pearson Intl

$722United Airlines

Mon, Nov 16 - Wed, Nov 25

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

2:10 pm - 4:05 pmSOF Sofia-PHL Philadelphia

32h 55m1 stop Frankfurt am Main

$757Lufthansa

Tue, Nov 17 - Mon, Nov 23

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

7:00 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 05m1 stop Frankfurt am Main

$757Lufthansa

Tue, Nov 17 - Wed, Nov 25

5:40 pm - 3:25 pmPHL Philadelphia-SOF Sofia

38h 45m2 stops Frankfurt am Main Zurich

3:00 pm - 4:05 pmSOF Sofia-PHL Philadelphia

32h 05m2 stops Zurich Frankfurt am Main

$759SWISS

Tue, Nov 17 - Mon, Nov 23

9:15 am - 11:55 pmPHL Philadelphia-SOF Sofia

31h 40m2 stops Toronto Pearson Intl Vienna Intl

6:45 pm - 10:36 pmSOF Sofia-PHL Philadelphia

34h 51m2 stops Vienna Intl Toronto Pearson Intl

$766Austrian Airlines

Mon, Nov 16 - Mon, Nov 23

9:15 am - 11:55 pmPHL Philadelphia-SOF Sofia

31h 40m2 stops Toronto Pearson Intl Vienna Intl

6:45 pm - 4:05 pmSOF Sofia-PHL Philadelphia

52h 20m2 stops Vienna Intl Frankfurt am Main

$836Austrian Airlines

Mon, Nov 16 - Sun, Nov 29

5:40 pm - 1:25 pmPHL Philadelphia-SOF Sofia

12h 45m1 stop Frankfurt am Main

7:00 pm - 4:05 pmSOF Sofia-PHL Philadelphia

28h 05m1 stop Frankfurt am Main

$1,290Lufthansa

Tue, Nov 17 - Sat, Nov 28

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United Airlines flights from Pennsylvania to Sofia

Our best United Airlines deals on Pennsylvania to Sofia flight tickets

United Airlines

Nov 16

PHL9:45 amPhiladelphia

30h 10m

2 stops

SOF10:55 pmSofia

Nov 24

SOF2:10 pmSofia

33h 11m

2 stops

PHL4:21 pmPhiladelphia

$722

United Airlines

Nov 16

PHL6:46 pmPhiladelphia

21h 09m

2 stops

SOF10:55 pmSofia

Nov 27

SOF2:10 pmSofia

26h 39m

2 stops

PHL9:49 amPhiladelphia

$724

United Airlines

Feb 7

PIT3:52 pmPittsburgh

14h 23m

2 stops

SOF1:15 pmSofia

Feb 11

SOF6:25 amSofia

43h 11m

2 stops

PIT6:36 pmPittsburgh

$728

Lufthansa flights from Pennsylvania to Sofia

Our best Lufthansa deals on Pennsylvania to Sofia flight tickets

Lufthansa

Nov 17

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

Nov 23

SOF2:10 pmSofia

32h 55m

1 stop

PHL4:05 pmPhiladelphia

$757

Lufthansa

Apr 14

PIT2:10 pmPittsburgh

15h 10m

2 stops

SOF12:20 pmSofia

Jun 16

SOF6:20 amSofia

17h 37m

2 stops

PIT4:57 pmPittsburgh

$793

Lufthansa

Apr 14

PIT2:10 pmPittsburgh

25h 55m

2 stops

SOF11:05 pmSofia

Jun 15

SOF6:20 amSofia

17h 37m

2 stops

PIT4:57 pmPittsburgh

$795

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 12/7

3:20 pm-1:15 pm

2 stops14h 55m

Sofia

Mon 12/14

6:45 pm-4:05 pm

2 stops28h 20m

$719

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 3/2

4:35 pm-10:55 pm

2 stops23h 20m

Sofia

Fri 3/5

6:25 am-10:45 pm

2 stops23h 20m

$722

PittsburghSofia

PIT Pittsburgh - SOF Sofia

PITSOF

Pittsburgh

Sun 2/7

3:52 pm-1:15 pm

2 stops14h 23m

Sofia

Thu 2/11

6:25 am-6:36 pm

2 stops43h 11m

$728

PittsburghSofia

PIT Pittsburgh - SOF Sofia

PITSOF

Pittsburgh

Sun 4/25

6:00 am-12:20 pm

2 stops23h 20m

Sofia

Thu 4/29

1:55 pm-6:34 pm

2 stops35h 39m

$730

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 2/16

6:15 am-1:15 pm

2 stops24h 00m

Sofia

Thu 2/18

6:25 am-10:46 pm

2 stops23h 21m

$740

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 3/2

9:15 am-1:25 pm

3 stops21h 10m

Sofia

Fri 3/5

6:25 am-10:45 pm

2 stops23h 20m

$760

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 12/7

9:34 pm-8:10 pm

2 stops39h 36m

Sofia

Mon 12/14

5:15 pm-1:45 pm

1 stop27h 30m

$766

Quickest round-trip

PittsburghSofia

PIT Pittsburgh - SOF Sofia

PITSOF

Pittsburgh

Wed 4/14

2:10 pm-12:20 pm

2 stops15h 10m

Sofia

Wed 6/16

6:20 am-4:57 pm

2 stops17h 37m

$793

PittsburghSofia

PIT Pittsburgh - SOF Sofia

PITSOF

Pittsburgh

Wed 4/14

2:10 pm-11:05 pm

2 stops25h 55m

Sofia

Tue 6/15

6:20 am-4:57 pm

2 stops17h 37m

$793

PittsburghSofia

PIT Pittsburgh - SOF Sofia

PITSOF

Pittsburgh

Sun 1/31

7:20 pm-6:20 pm

2 stops16h 00m

Sofia

Mon 2/8

7:05 pm-11:14 pm

2 stops35h 09m

$811

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Pennsylvania to Sofia

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

Other information

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Pennsylvania is in April. Flight prices, which tend to average around $493, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Sofia from Pennsylvania during January instead. Flights to Sofia in January, while not as cheap as those in April, still average around $524.

Can stopping save me money on Pennsylvania to Sofia flights?

You could potentially save up to 40% on your flight if you consider stops on a Pennsylvania to Sofia flight.

Cheap Pennsylvania to Sofia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Sofia

Best Price Found	$520
Fastest flight time	10h 40m
Direct flights	None

The best one-way flight to Sofia from Pennsylvania in the past 72 hours is $520. The best round-trip flight deal from Pennsylvania to Sofia found on momondo in the last 72 hours is $719.

The fastest flight from Pennsylvania to Sofia takes 10h 40m

There are no direct flights from Pennsylvania to Sofia. There are no popular flight routes from Pennsylvania to Sofia.

Search flight deals

Frequently asked questions about flying from Pennsylvania to Sofia

When did momondo last update prices for flights from Pennsylvania to Sofia Airport?
Prices for flights from Pennsylvania to Sofia Airport refresh daily.
How many operators does momondo search for flights from Pennsylvania to Sofia Airport?
As of November 2026, there are 2 operators available to choose from for flights from Pennsylvania to Sofia Airport.
How old do you have to be to fly from Pennsylvania to Sofia Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The required travel and health documents for your Sofia 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 Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Pennsylvania to Sofia

Compare and see reviews for airlines that fly from Pennsylvania to Sofia with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $485	Free Cancellation	Rating 6.8 8,290 reviews		Search Lufthansa flights
United Airlines	PriceFrom $497	Free Cancellation	Rating 7.3 10,474 reviews		Search United Airlines flights

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to Sofia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pennsylvania to Sofia for you.

Can I find flights from Pennsylvania to Sofia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Pennsylvania to Sofia flights to just show those with flexible booking policies.

How can momondo help me find flights from Pennsylvania to Sofia?

momondo provides multiple filters to help you find the best flight to Sofia from Pennsylvania. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Pennsylvania to Sofia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Pennsylvania to Sofia from $520

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Sofia departing on 11/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Pennsylvania to Sofia

Our best United Airlines deals on Pennsylvania to Sofia flight tickets

Lufthansa flights from Pennsylvania to Sofia

Our best Lufthansa deals on Pennsylvania to Sofia flight tickets

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How to get the cheapest flight ticket from Pennsylvania to Sofia

What is the cheapest month to fly to Sofia?

Can stopping save me money on Pennsylvania to Sofia flights?

What is the cheapest airline that flies from Pennsylvania to Sofia?

How long does it take to fly to Sofia?

Cheap Pennsylvania to Sofia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Pennsylvania to Sofia

Best airlines flying from Pennsylvania to Sofia

Compare and see reviews for airlines that fly from Pennsylvania to Sofia with momondo

Traveling to a place near Sofia?

Why use momondo?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo

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