HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Sofia (SOF) to Philadelphia (PHL) from $415

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SOF — PHL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Sofia to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Popular in

December

Cheapest in

October

Average price

$671

Round-trip from

$225
High demand for flights, 48% potential price rise
Search Deals
Best time to find cheap flights, 27% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Sofia to Philadelphia
Search Deals

What is the cheapest day to fly round-trip from Sofia to Philadelphia?

Thursday flights are generally found to be more expensive for flights from Sofia to Philadelphia. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Philadelphia.

What is the cheapest month to fly from Sofia to Philadelphia?

Flights from Sofia to Philadelphia lean towards being more expensive in December. Prices are generally better when you fly from Sofia to Philadelphia in October, with the cheapest ticket starting at $552.

When is the cheapest time to fly from Sofia to Philadelphia (SOF - PHL)?

It’s optimal to fly from Sofia to Philadelphia at noon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

Cheap United Airlines flights from Sofia to Philadelphia

Explore cheap flight options specifically provided by United Airlines for the route between Sofia and Philadelphia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from Sofia to Philadelphia. Make sure to check back often as deals are often changing.
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Wed 8/212:35 pmPHL - SOF
2 stops21h 10mUnited Airlines
Deal found 5/15$707
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Mon 8/1910:30 amPHL - SOF
2 stops19h 50mUnited Airlines
Deal found 5/15$709
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Sun 8/1810:15 amPHL - SOF
2 stops18h 55mUnited Airlines
Deal found 5/15$734
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Thu 8/225:35 pmPHL - SOF
1 stop17h 30mUnited Airlines
Deal found 5/15$765
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Sat 8/1710:15 amPHL - SOF
2 stops20h 05mUnited Airlines
Deal found 5/15$769
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Fri 8/236:40 pmPHL - SOF
2 stops21h 20mUnited Airlines
Deal found 5/15$804
Mon 7/296:00 amSOF - PHL
2 stops25h 29mUnited Airlines
Wed 8/212:35 pmPHL - SOF
2 stops21h 10mUnited Airlines
Deal found 5/15$805
Thu 8/18:00 amSOF - PHL
2 stops23h 29mUnited Airlines
Tue 8/2010:30 amPHL - SOF
2 stops24h 35mUnited Airlines
Deal found 5/15$806
Mon 7/296:00 amSOF - PHL
2 stops25h 29mUnited Airlines
Mon 8/1910:30 amPHL - SOF
2 stops19h 50mUnited Airlines
Deal found 5/15$807

Cheap British Airways flights from Sofia to Philadelphia

Explore cheap flight options specifically provided by British Airways for the route between Sofia and Philadelphia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Some of the best deals we've found on British Airways flights traveling from Sofia to Philadelphia. Deals frequently update to provide users with more options.
Sun 7/289:00 pmSOF - PHL
1 stop22h 45mBritish Airways
Sat 8/178:56 pmPHL - SOF
2 stops16h 09mBritish Airways
Deal found 5/15$928
Sun 7/289:00 pmSOF - PHL
1 stop22h 45mBritish Airways
Sun 8/186:30 pmPHL - SOF
1 stop17h 40mBritish Airways
Deal found 5/15$929
Sun 7/289:00 pmSOF - PHL
1 stop22h 45mBritish Airways
Mon 8/197:02 pmPHL - SOF
2 stops18h 23mBritish Airways
Deal found 5/15$954
Sat 8/38:05 pmSOF - PHL
1 stop23h 40mBritish Airways
Wed 8/216:31 pmPHL - SOF
2 stops18h 59mBritish Airways
Deal found 5/15$964
Sun 7/289:00 pmSOF - PHL
1 stop22h 45mBritish Airways
Wed 8/216:33 pmPHL - SOF
2 stops18h 57mBritish Airways
Deal found 5/15$1,001
Tue 7/309:15 pmSOF - PHL
1 stop22h 30mBritish Airways
Fri 8/236:30 pmPHL - SOF
1 stop17h 30mBritish Airways
Deal found 5/15$1,167
Thu 8/19:20 pmSOF - PHL
1 stop22h 25mBritish Airways
Sun 8/186:30 pmPHL - SOF
1 stop17h 40mBritish Airways
Deal found 5/15$1,253

Cheap Sofia to Philadelphia flights in May & June 2024

Find cheap flight options from Sofia to Philadelphia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Listed are some of the best fares we've found on flights departing from Sofia to Philadelphia in 2024. Check back regularly for other flight deals.
Sat 6/226:40 amSOF - PHL
1 stop15h 45mMultiple Airlines
Tue 6/2510:30 pmPHL - SOF
1 stop17h 25mMultiple Airlines
Deal found 5/15$796
Sat 6/226:30 amSOF - PHL
2 stops15h 59mMultiple Airlines
Tue 6/255:35 pmPHL - SOF
1 stop22h 00mMultiple Airlines
Deal found 5/15$872
Sat 6/226:30 amSOF - PHL
2 stops22h 04mMultiple Airlines
Tue 6/2511:15 amPHL - SOF
2 stops24h 30mMultiple Airlines
Deal found 5/15$873
Sat 6/2212:00 pmSOF - PHL
2 stops34h 29mMultiple Airlines
Tue 6/254:10 pmPHL - SOF
3 stops23h 30mMultiple Airlines
Deal found 5/15$1,325

Sofia to Philadelphia 2024 flight deals

Discover exclusive flight deals for travel between Sofia and Philadelphia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Listed are some of the best fares we've found on flights departing from Sofia to Philadelphia in 2024. Check back regularly for other flight deals.
Wed 11/136:05 pmSOF - PHL
1 stop26h 25mAmerican Airlines
Sun 11/176:35 pmPHL - SOF
1 stop15h 00mAmerican Airlines
Deal found 5/14$598
Wed 11/136:05 pmSOF - PHL
1 stop29h 25mAmerican Airlines
Sun 11/179:20 pmPHL - SOF
1 stop12h 15mAmerican Airlines
Deal found 5/15$599
Wed 11/136:05 pmSOF - PHL
1 stop26h 25mAmerican Airlines
Sun 11/176:00 amPHL - SOF
2 stops27h 35mAmerican Airlines
Deal found 5/14$602
Wed 11/136:05 pmSOF - PHL
1 stop26h 25mAmerican Airlines
Sun 11/176:00 amPHL - SOF
2 stops27h 35mAmerican Airlines
Deal found 5/15$604
Wed 11/136:05 pmSOF - PHL
2 stops33h 00mAmerican Airlines
Sun 11/1710:30 amPHL - SOF
2 stops23h 05mAmerican Airlines
Deal found 5/14$608
Wed 11/136:05 pmSOF - PHL
2 stops46h 45mAmerican Airlines
Sun 11/1710:30 amPHL - SOF
2 stops23h 05mAmerican Airlines
Deal found 5/15$610
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Wed 8/212:35 pmPHL - SOF
2 stops21h 10mUnited Airlines
Deal found 5/15$707
Wed 7/316:00 amSOF - PHL
2 stops17h 00mUnited Airlines
Mon 8/1910:30 amPHL - SOF
2 stops19h 50mUnited Airlines
Deal found 5/15$709
Wed 7/312:05 pmSOF - PHL
1 stop32h 55mMultiple Airlines
Tue 8/205:35 pmPHL - SOF
1 stop17h 30mMultiple Airlines
Deal found 5/15$713

One-way flights to Philadelphia from Sofia

Search for one-way flight options from Sofia to Philadelphia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users in need of a one-way flight from Sofia to Philadelphia can choose from these deals. Users can also find round-trip Sofia to Philadelphia flights by using the search form above.
Sat 6/111:45 amSOF - PHL
3 stops53h 18mMultiple Airlines
Deal found 5/15$415
Sat 8/318:05 pmSOF - PHL
1 stop27h 30mBritish Airways
Deal found 5/15$587
Sun 9/19:00 pmSOF - PHL
2 stops32h 20mBritish Airways
Deal found 5/15$597
Sat 8/318:05 pmSOF - PHL
2 stops52h 09mBritish Airways
Deal found 5/15$603
Sat 6/11:35 pmSOF - PHL
1 stop32h 55mQatar Airways
Deal found 5/15$636
Sat 6/110:45 amSOF - PHL
2 stops18h 56mMultiple Airlines
Deal found 5/15$651
Sat 8/317:10 amSOF - PHL
3 stops35h 03mMultiple Airlines
Deal found 5/15$699
Sun 9/16:30 amSOF - PHL
1 stop16h 30mMultiple Airlines
Deal found 5/15$747
Sun 9/14:05 pmSOF - PHL
3 stops30h 55mMultiple Airlines
Deal found 5/15$824

Find flights from Sofia to Philadelphia within your budget

Customize your flight search to find flights from Sofia to Philadelphia 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$707 - $1,403

Route

Depart

Return

Price

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 7/31

2 stops17h 00m

Philadelphia

Wed 8/21

2 stops21h 10m

$707

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 7/31

2 stops17h 00m

Philadelphia

Mon 8/19

2 stops19h 50m

$709

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 7/31

1 stop32h 55m

Philadelphia

Tue 8/20

1 stop17h 30m

$713

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 7/31

2 stops17h 00m

Philadelphia

Sun 8/18

2 stops18h 55m

$734

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 7/31

1 stop32h 55m

Philadelphia

Tue 8/20

2 stops20h 20m

$736

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Sat 8/3

2 stops23h 14m

Philadelphia

Sat 8/17

2 stops20h 15m

$918

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Sun 7/28

1 stop22h 45m

Philadelphia

Sat 8/17

2 stops16h 09m

$928

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Tue 7/30

1 stop28h 15m

Philadelphia

Wed 8/21

1 stop12h 45m

$980

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 8/1

1 stop25h 10m

Philadelphia

Sat 8/17

1 stop18h 35m

$1,403

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Sofia to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Sofia to Philadelphia. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Sofia to Philadelphia flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Philadelphia by month

Plan your trip from Sofia to Philadelphia by taking into account the cheapest months to travel. The average price of a one-way flight from Sofia to Philadelphia is currently $640 while a round-trip flight costs $870. Price data was last updated on May 12, 2024.

Currently, October is the cheapest month in which you can book a flight from Sofia to Philadelphia (average of $225). Flying from Sofia to Philadelphia in July is currently the most expensive (average of $305). 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.

January

$258

February

$258

March

$281

April

$268

May

$268

June

$286

July

$305

August

$258

September

$246

October

$225

November

$268

December

$253

Temperature and rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature and rainfall totals by month.

PHL

Temperature

33.8 - 78.8 °F

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated May 16, 2024.
Read through reviews of airlines operating flights from Sofia to Philadelphia, such as United Airlines, British Airways and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

Qatar Airways
7.7
Good
4,387 reviews
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

United Airlines
7.4
Good
10,924 reviews
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

American Airlines
7.3
Good
14,514 reviews
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

Air Canada
7.0
Good
6,947 reviews
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

Lufthansa
7.0
Good
7,659 reviews
Qatar Airways
7.7
Good
4,387 reviews
Check prices

Crew

8.2

Overall

7.7

Comfort

7.7

Food

7.5

Entertainment

7.7

Boarding

7.8

Reviews

1 / 10

security procedure is too many times. need review. no bathroom facility once all passanger are in holding area after security and gate checked in. C5

Related info for your journey

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

  • Can I find flights from Sofia to Philadelphia for under $800 on Cheapflights?

    Yes, there are multiple flights from Sofia to Philadelphia for under $800. The cheapest flight booked recently is on United Airlines for just $707, but on average you can expect to pay $793.

  • What is the cheapest airline to fly from Sofia to Philadelphia round-trip?

    According to our current data, United Airlines ($707), offers the cheapest pricing from Sofia to Philadelphia. United Airlines is priced at 10% lower than the current average price of a flight leaving 3 months from now.

  • What does SOF to PHL mean?

    Sofia Airport is SOF and Philadelphia Airport is PHL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Sofia to Philadelphia that include extra baggage allowance?

    The amount of baggage you can bring on your Sofia to Philadelphia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Sofia to Philadelphia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sofia to Philadelphia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Sofia to Philadelphia that allow pets onboard?

    Many airlines flying from Sofia to Philadelphia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Sofia to Philadelphia?

    Yes, you can often find last-minute deals on Sofia to Philadelphia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Sofia to Philadelphia flight deals updated?

    The Sofia to Philadelphia flight deals you see on this page were last updated on 5/15.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sofia to Philadelphia
See prices for flight routes from nearby airports that may be better suited for you.

Sofia to John F Kennedy Intl flights
Sofia to Newark flights
Sofia to LaGuardia flights
Sofia to Dulles Intl flights

Top airline flying from Sofia to Philadelphia

Discover the top airline that operate flights from Sofia to Philadelphia. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$566Average$634FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Houston to Miami flights
Atlanta to Houston flights
Portland to Los Angeles flights
St. Louis to Denver flights
Chicago to Dallas flights
Miami to Los Angeles flights
Denver to San Diego flights
USA to Ghana flights
Miami to Tampa flights
San Francisco to Honolulu flights
San Francisco to Newark Airport flights
Sofia to Phoenix Sky Harbor Intl Airport flights

Search flights from Sofia to Philadelphia by cabin class

Find flights from Sofia to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Montes Claros
Flights to Girona Costa Brava
Flights to Naxos
Flights to Bourgas
Flights to Hyannis Barnstable
Flights to Samos
Flights to Reggio Calabria Tito Menniti
Flights to Devils Lake
Flights to Ningbo Lishe Intl
Flights to Pellston Emmet County
Flights to Provincetown
Flights to Cortez Montezuma County
Flights to Ohrid
Flights to Oran Es Senia
Flights to Menorca/Mahon
Flights to Hakodate
Flights to Ordu/Giresun
Flights to Laayoune Hassan I
Flights to Cornwall Newquay
Flights to Melilla
Flights to Rennes St Jacques
Flights to Parikia Paros
Flights to Constanţa Mihail Kogalniceanu
Flights to Miyakojima Hirara

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sofia to Philadelphia?

Cheapflights makes it easy to find Sofia to Philadelphia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sofia to Philadelphia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sofia to Philadelphia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sofia to Philadelphia with no change fees?

Yes! Cheapflights helps users easily find flights from Sofia to Philadelphia with no change fees.

Can Cheapflights notify me if prices for flights from Sofia to Philadelphia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Philadelphia from Sofia today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines