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$185+ Cheap flights from Pennsylvania to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOF
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Pennsylvania to Sofia

Cheapest flights from Pennsylvania to Sofia
Explore the most affordable flight options available from Pennsylvania to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:55 pmEWR - SOF
1 stop10h 55mMultiple Airlines
Fri 1/236:05 amSOF - EWR
2 stops23h 43mMultiple Airlines
Deal found 11/25$386
This Cheapflightsfares deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:55 pmEWR - SOF
1 stop10h 55mAustrian Airlines
Fri 1/237:55 amSOF - EWR
1 stop13h 00mAustrian Airlines
Deal found 11/25$392
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:52 pmEWR - SOF
2 stops15h 28mUnited Airlines
Wed 12/247:55 amSOF - EWR
2 stops22h 49mUnited Airlines
Deal found 11/24$406
This FlightHub deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:35 pmEWR - SOF
2 stops12h 40mMultiple Airlines
Wed 1/147:55 amSOF - EWR
1 stop13h 00mMultiple Airlines
Deal found 11/26$409
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:52 pmEWR - SOF
2 stops15h 28mUnited Airlines
Thu 12/252:35 pmSOF - EWR
2 stops16h 09mUnited Airlines
Deal found 11/24$414
This Air France deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:05 pmEWR - SOF
1 stop13h 50mAir France
Fri 1/237:00 amSOF - EWR
1 stop14h 55mAir France
Deal found 11/26$415
This Air France deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:05 pmEWR - SOF
1 stop14h 00mAir France
Mon 12/157:00 amSOF - EWR
1 stop14h 55mAir France
Deal found 11/26$416
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:55 pmEWR - SOF
1 stop10h 55mUnited Airlines
Wed 1/77:55 amSOF - EWR
1 stop13h 00mUnited Airlines
Deal found 11/26$422
This KAYAK deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:30 pmEWR - SOF
2 stops20h 15mLufthansa
Wed 12/176:05 amSOF - EWR
2 stops17h 20mLufthansa
Deal found 11/24$424
This Air France deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:05 pmEWR - SOF
1 stop13h 50mMultiple Airlines
Fri 1/237:00 amSOF - EWR
2 stops23h 01mMultiple Airlines
Deal found 11/26$426
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:10 pmJFK - SOF
1 stop10h 40mUnited Airlines
Wed 1/76:10 amSOF - JFK
2 stops21h 48mUnited Airlines
Deal found 11/26$431
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:30 pmJFK - SOF
1 stop12h 45mMultiple Airlines
Mon 12/1512:35 pmSOF - JFK
1 stop32h 40mMultiple Airlines
Deal found 11/25$435

Cheap flight deals from Pennsylvania to Sofia

Keep the following information in mind while searching for Pennsylvania to Sofia flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$355
(Kiwi.com)

One-way from

$185
(Kiwi.com)

Popular in

May

Cheapest in

October

Average price

$540
Provider with most accurate pricing for Philadelphia-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Sofia flights.
Search Deals
From Pennsylvania to Sofia
Search Deals
One-way flight from Pennsylvania to Sofia
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($277 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Sofia 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, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Pennsylvania to Sofia that are best for you.

Fly from

Pennsylvania

Fly to

Sofia

Route

Depart

Return

Price

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 12/24

6:10 pm-11:50 am

1 stop10h 40m

Sofia

Wed 1/7

6:10 am-8:58 pm

2 stops21h 48m

$431

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 5/5

9:00 am-1:15 pm

2 stops21h 15m

Sofia

Thu 5/21

6:10 am-3:00 pm

1 stop15h 50m

$441

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sun 5/3

9:50 pm-6:00 pm

1 stop13h 10m

Sofia

Tue 5/19

6:10 am-3:00 pm

1 stop15h 50m

$441

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sun 5/3

9:00 am-10:50 pm

2 stops30h 50m

Sofia

Fri 5/22

6:20 am-1:20 pm

1 stop14h 00m

$448

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 2/4

4:50 pm-10:45 pm

2 stops22h 55m

Sofia

Sun 2/8

6:05 am-3:40 pm

1 stop16h 35m

$451

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 5/6

9:00 am-10:50 pm

2 stops30h 50m

Sofia

Mon 5/18

12:50 pm-3:00 pm

1 stop33h 10m

$451

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-1:15 pm

2 stops14h 45m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$477

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

5:35 pm-1:15 pm

1 stop12h 40m

Sofia

Tue 4/7

6:10 am-4:00 pm

1 stop16h 50m

$480

PhiladelphiaSofia

PHL - SOF

PHLSOF

Philadelphia

Tue 3/31

3:30 pm-6:40 pm

2 stops20h 10m

Sofia

Tue 4/7

12:50 pm-2:46 pm

2 stops32h 56m

$482

NewarkSofia

EWR - SOF

EWRSOF

Newark

Thu 1/15

6:00 pm-6:00 pm

2 stops17h 00m

Sofia

Thu 1/29

6:45 pm-1:55 pm

2 stops26h 10m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Pennsylvania with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to Sofia

What is the cheapest month to book a flight from Pennsylvania to Sofia?

Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Sofia (average of $476). Flying from Pennsylvania to Sofia in May is currently the most expensive (average of $739). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to SOF?

Find hourly flight availability from Pennsylvania to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

It’s typically best to fly out from Pennsylvania to Sofia in the evening. Doing so could potentially save you 48% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Pennsylvania?

    Most people fly into Sofia (SOF) if they book a flight to Sofia from Pennsylvania. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

  • How long is the flight from Pennsylvania to Sofia?

    Airlines like United Airlines, Lufthansa, and Air Canada fly from Pennsylvania to Sofia in about 10h 40m. The time it takes to get you to your destination can typically vary by up to 9h 30m. The distance between Pennsylvania and Sofia is about 4707 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Pennsylvania to Sofia one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $380. Users have also found prices from $464 and $469 on Lufthansa and Turkish Airlines, respectively.

  • What are the most popular routes from Pennsylvania to Sofia?

    While some choose either Newark - Sofia or New York LaGuardia - Sofia, New York John F Kennedy Intl - Sofia is the most popular route from Pennsylvania to Sofia.

  • Can I find deals for flights from Pennsylvania to Sofia that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Sofia.

  • Can I find deals for business class flights from Pennsylvania to Sofia?

    Yes. Cheapflights offers flight deals from Pennsylvania to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to Sofia?

    Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Sofia (average of $476). Flying from Pennsylvania to Sofia in May is currently the most expensive (average of $739). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Pennsylvania to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Pennsylvania to Sofia

Discover the top 4 airlines that operate flights from Pennsylvania to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$511Average$828FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$540Average$1,024FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$626Average$713FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$802Average$1,239FlexibilityNo cancel feeOn-time77%

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