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

British Airways 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 Pittsburgh to Sofia takes 14h 09m on average. On the other hand, flying from Philadelphia to Sofia takes 15h 05m 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 September 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.

$339 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.

7:35 pm - 4:20 pmPHL Philadelphia-SOF Sofia

14h 45m1 stop London Heathrow

5:15 pm - 4:15 pmSOF Sofia-PHL Philadelphia

30h 00m1 stop London Heathrow

$555British Airways

Sun, Oct 25 - Mon, Nov 9

6:45 pm - 7:20 pmPHL Philadelphia-SOF Sofia

17h 35m1 stop London Heathrow

9:05 pm - 4:15 pmSOF Sofia-PHL Philadelphia

26h 10m1 stop London Heathrow

$555British Airways

Sun, Oct 11 - Wed, Nov 18

6:45 pm - 8:30 pmPHL Philadelphia-SOF Sofia

18h 45m1 stop London Heathrow

9:05 pm - 4:15 pmSOF Sofia-PHL Philadelphia

26h 10m1 stop London Heathrow

$555British Airways

Tue, Oct 13 - Wed, Nov 18

6:45 pm - 7:20 pmPHL Philadelphia-SOF Sofia

17h 35m1 stop London Heathrow

5:15 pm - 4:15 pmSOF Sofia-PHL Philadelphia

30h 00m1 stop London Heathrow

$555British Airways

Sun, Oct 11 - Mon, Nov 16

10:40 am - 12:10 pmPHL Philadelphia-SOF Sofia

18h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

2:00 pm - 11:31 pmSOF Sofia-PHL Philadelphia

16h 31m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

$600United Airlines

Mon, Oct 12 - Tue, Nov 17

6:10 am - 11:40 amPHL Philadelphia-SOF Sofia

22h 30m2 stops Chicago O'Hare Intl Vienna Intl

7:55 am - 11:10 pmSOF Sofia-PHL Philadelphia

22h 15m2 stops Vienna Intl Chicago O'Hare Intl

$601United Airlines

Mon, Oct 12 - Fri, Nov 20

6:10 am - 11:40 amPHL Philadelphia-SOF Sofia

22h 30m2 stops Chicago O'Hare Intl Vienna Intl

7:55 am - 11:09 pmSOF Sofia-PHL Philadelphia

22h 14m2 stops Vienna Intl Chicago O'Hare Intl

$601United Airlines

Mon, Oct 12 - Thu, Nov 19

5:40 pm - 1:05 pmPHL Philadelphia-SOF Sofia

12h 25m1 stop Frankfurt am Main

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

$612Lufthansa

Tue, Oct 13 - Tue, Nov 17

5:40 pm - 1:05 pmPHL Philadelphia-SOF Sofia

12h 25m1 stop Frankfurt am Main

6:25 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 40m1 stop Frankfurt am Main

$612Lufthansa

Tue, Oct 13 - Thu, Nov 19

5:40 pm - 1:05 pmPHL Philadelphia-SOF Sofia

12h 25m1 stop Frankfurt am Main

6:00 am - 4:05 pmSOF Sofia-PHL Philadelphia

17h 05m2 stops Munich Franz Josef Strauss Frankfurt am Main

$629Lufthansa

Tue, Oct 13 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 12:10 pmPHL Philadelphia-SOF Sofia

22h 55m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$766United Airlines

Mon, Sep 28 - Tue, Oct 20

6:55 pm - 11:15 pmPHL Philadelphia-SOF Sofia

21h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$766United Airlines

Mon, Sep 28 - Tue, Oct 20

6:55 pm - 11:15 pmPHL Philadelphia-SOF Sofia

21h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$767United Airlines

Mon, Sep 28 - Tue, Oct 20

10:40 am - 12:10 pmPHL Philadelphia-SOF Sofia

18h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 9:32 pmSOF Sofia-PHL Philadelphia

22h 22m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$769United Airlines

Mon, Sep 28 - Tue, Oct 20

10:40 am - 12:10 pmPHL Philadelphia-SOF Sofia

18h 30m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:10 am - 9:32 pmSOF Sofia-PHL Philadelphia

22h 22m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$770United Airlines

Mon, Sep 28 - Tue, Oct 20

6:55 pm - 11:15 pmPHL Philadelphia-SOF Sofia

21h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 9:32 pmSOF Sofia-PHL Philadelphia

22h 22m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$770United Airlines

Mon, Sep 28 - Tue, Oct 20

5:40 pm - 6:00 pmPHL Philadelphia-SOF Sofia

17h 20m1 stop Frankfurt am Main

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$771Lufthansa

Mon, Sep 28 - Tue, Oct 20

5:40 pm - 6:00 pmPHL Philadelphia-SOF Sofia

17h 20m1 stop Frankfurt am Main

6:10 am - 4:05 pmSOF Sofia-PHL Philadelphia

16h 55m1 stop Frankfurt am Main

$772Lufthansa

Mon, Sep 28 - Tue, Oct 20

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

British Airways flights from Pennsylvania to Sofia

Our best British Airways deals on Pennsylvania to Sofia flight tickets

British Airways

Oct 11

PHL6:45 pmPhiladelphia

17h 35m

1 stop

SOF7:20 pmSofia

Nov 18

SOF9:05 pmSofia

26h 10m

1 stop

PHL4:15 pmPhiladelphia

$555

British Airways

Oct 12

PHL9:55 pmPhiladelphia

39h 35m

2 stops

SOF8:30 pmSofia

Nov 18

SOF9:05 pmSofia

26h 10m

1 stop

PHL4:15 pmPhiladelphia

$565

British Airways

Oct 12

PHL9:55 pmPhiladelphia

39h 35m

2 stops

SOF8:30 pmSofia

Nov 18

SOF9:05 pmSofia

29h 13m

2 stops

PHL7:18 pmPhiladelphia

$569

Air Canada flights from Pennsylvania to Sofia

Our best Air Canada deals on Pennsylvania to Sofia flight tickets

Air Canada

Oct 11

PHL4:20 pmPhiladelphia

36h 50m

2 stops

SOF12:10 pmSofia

Nov 18

SOF6:00 amSofia

39h 44m

2 stops

PHL2:44 pmPhiladelphia

$597

Air Canada

Oct 11

PHL4:20 pmPhiladelphia

36h 50m

2 stops

SOF12:10 pmSofia

Nov 19

SOF2:10 pmSofia

15h 46m

2 stops

PHL10:56 pmPhiladelphia

$609

Air Canada

Oct 12

PHL7:00 amPhiladelphia

22h 10m

2 stops

SOF12:10 pmSofia

Nov 16

SOF2:10 pmSofia

57h 11m

2 stops

PHL4:21 pmPhiladelphia

$642

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/25

7:35 pm-4:20 pm

1 stop14h 45m

Sofia

Mon 11/9

5:15 pm-4:15 pm

1 stop30h 00m

$555

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/11

6:45 pm-7:20 pm

1 stop17h 35m

Sofia

Wed 11/18

9:05 pm-4:15 pm

1 stop26h 10m

$555

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

6:45 pm-8:30 pm

1 stop18h 45m

Sofia

Wed 11/18

9:05 pm-4:15 pm

1 stop26h 10m

$555

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Sun 10/11

6:45 pm-7:20 pm

1 stop17h 35m

Sofia

Mon 11/16

5:15 pm-4:15 pm

1 stop30h 00m

$555

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 10/12

10:40 am-12:10 pm

2 stops18h 30m

Sofia

Tue 11/17

2:00 pm-11:31 pm

2 stops16h 31m

$600

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 10/12

6:10 am-11:40 am

2 stops22h 30m

Sofia

Fri 11/20

7:55 am-11:10 pm

2 stops22h 15m

$601

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Mon 10/12

6:10 am-11:40 am

2 stops22h 30m

Sofia

Thu 11/19

7:55 am-11:09 pm

2 stops22h 14m

$601

Quickest round-trip

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-1:05 pm

1 stop12h 25m

Sofia

Tue 11/17

6:25 am-4:05 pm

1 stop16h 40m

$612

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-1:05 pm

1 stop12h 25m

Sofia

Thu 11/19

6:25 am-4:05 pm

1 stop16h 40m

$612

PhiladelphiaSofia

PHL Philadelphia - SOF Sofia

PHLSOF

Philadelphia

Tue 10/13

5:40 pm-1:05 pm

1 stop12h 25m

Sofia

Tue 11/17

6:00 am-4:05 pm

2 stops17h 05m

$629

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	$339
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Sofia from Pennsylvania in the past 72 hours is $339. The best round-trip flight deal from Pennsylvania to Sofia found on momondo in the last 72 hours is $555.

The fastest flight from Pennsylvania to Sofia takes 11h 25m

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 September 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 8,237 reviews		Search Lufthansa flights
United Airlines	PriceFrom $497	Free Cancellation	Rating 7.4 10,243 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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Tue 10/27

Tue 11/3

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Airlines

Cabin classes

Other Bulgaria destinations

Other flights from Pennsylvania

Complete your trip

Feeling lucky

Fly your favorite airline to Sofia

Lufthansa

United Airlines

Cheap flights from Pennsylvania to Sofia from $339

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 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Pennsylvania to Sofia

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

British Airways flights from Pennsylvania to Sofia

Our best British Airways deals on Pennsylvania to Sofia flight tickets

Air Canada flights from Pennsylvania to Sofia

Our best Air Canada deals on Pennsylvania to Sofia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Pennsylvania to Sofia that are best for you.

See travel insights to Sofia from

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

Fly to other destinations from Pennsylvania

According to popular flight searches on momondo this year

Complete your trip to Sofia

Explore popular destinations other users love

According to popular flight searches on momondo this year