$362+ Cheap flights from Philadelphia (PHL) 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOF
Jun 23 — Jun 301
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Sofia with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Sofia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to SofiaExplore the most affordable flight options available from Philadelphia to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 24, 2026.
Explore the most affordable flight options available from Philadelphia to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 24, 2026.
This Air France deal was found by Cheapflights users on 5/19. 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.
Tue 8/111:15 pm
PHL
- SOF
2 stops17h 45m
Multiple Airlines
Tue 9/17:00 am
SOF
- PHL
2 stops18h 29m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$744
This KLM deal was found by Cheapflights users on 5/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:15 pm
PHL
- SOF
2 stops17h 45m
KLM
Tue 9/17:00 am
SOF
- PHL
2 stops20h 33m
KLM
Deal found 5/19![KLM logo]()
$749
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Tue 12/81:00 pm
PHL
- SOF
2 stops17h 15m
United Airlines
Fri 12/116:10 am
SOF
- PHL
2 stops23h 46m
United Airlines
Deal found 5/20![United Airlines logo]()
$750
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Tue 8/1110:50 am
PHL
- SOF
2 stops18h 20m
Multiple Airlines
Mon 8/317:00 pm
SOF
- PHL
1 stop28h 05m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$762
This oojo deal was found by Cheapflights users on 5/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Mon 8/317:00 pm
SOF
- PHL
1 stop28h 05m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$765
This KAYAK deal was found by Cheapflights users on 5/19. 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.
Sun 8/95:40 pm
PHL
- SOF
1 stop12h 55m
Lufthansa
Mon 8/317:00 pm
SOF
- PHL
1 stop28h 05m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$771
This Expedia deal was found by Cheapflights users on 5/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:25 pm
PHL
- SOF
2 stops15h 00m
Multiple Airlines
Mon 8/317:25 pm
SOF
- PHL
2 stops27h 40m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$782
This Air France deal was found by Cheapflights users on 5/21. 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.
Tue 6/21:44 pm
PHL
- SOF
2 stops17h 16m
Multiple Airlines
Wed 11/47:00 am
SOF
- PHL
2 stops20h 37m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$809
Best flights from Philadelphia to SofiaDiscover carefully curated flight deals from Philadelphia to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 24, 2026.
Discover carefully curated flight deals from Philadelphia to Sofia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 24, 2026.
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Tue 8/1110:50 am
PHL
- SOF
2 stops18h 20m
Multiple Airlines
Mon 8/317:00 pm
SOF
- PHL
1 stop28h 05m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$762
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Tue 8/410:32 am
PHL
- SOF
2 stops18h 38m
United Airlines
Thu 8/206:30 am
SOF
- PHL
2 stops34h 13m
United Airlines
Deal found 5/24![United Airlines logo]()
$812
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Fri 8/710:32 am
PHL
- SOF
2 stops29h 43m
United Airlines
Sun 8/238:00 am
SOF
- PHL
2 stops23h 59m
United Airlines
Deal found 5/23![United Airlines logo]()
$832
This Expedia deal was found by Cheapflights users on 5/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:05 am
PHL
- SOF
2 stops17h 15m
Multiple Airlines
Tue 6/92:10 pm
SOF
- PHL
1 stop32h 55m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Tue 8/113:05 pm
PHL
- SOF
2 stops14h 05m
United Airlines
Tue 9/16:10 am
SOF
- PHL
1 stop16h 55m
United Airlines
Deal found 5/19![United Airlines logo]()
$838
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Sun 8/93:10 pm
PHL
- SOF
2 stops15h 25m
United Airlines
Mon 8/316:20 am
SOF
- PHL
2 stops18h 34m
United Airlines
Deal found 5/19![United Airlines logo]()
$868
This United Airlines deal was found by Cheapflights users on 5/19. 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 6/810:32 am
PHL
- SOF
2 stops18h 38m
United Airlines
Tue 6/236:10 am
SOF
- PHL
1 stop16h 55m
United Airlines
Deal found 5/19![United Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Tue 6/97:45 pm
PHL
- SOF
2 stops20h 30m
United Airlines
Tue 6/236:10 am
SOF
- PHL
1 stop16h 55m
United Airlines
Deal found 5/20![United Airlines logo]()
$900
Last-minute flights from Philadelphia to SofiaDiscover last-minute flight deals from Philadelphia to Sofia. Data last updated May 24, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Sofia. Data last updated May 24, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/22. 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.
Mon 5/254:20 pm
PHL
- SOF
2 stops43h 20m
Multiple Airlines
Mon 6/86:55 pm
SOF
- PHL
2 stops50h 53m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$854
This oojo deal was found by Cheapflights users on 5/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:40 pm
PHL
- SOF
1 stop22h 00m
Lufthansa
Mon 6/87:00 pm
SOF
- PHL
1 stop28h 05m
Lufthansa
Deal found 5/22![Lufthansa logo]()
$856
This Air France deal was found by Cheapflights users on 5/21. 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.
Tue 6/21:44 pm
PHL
- SOF
2 stops17h 16m
Multiple Airlines
Wed 11/47:00 am
SOF
- PHL
2 stops20h 37m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$809
This oojo deal was found by Cheapflights users on 5/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Wed 11/47:00 pm
SOF
- PHL
1 stop28h 05m
Lufthansa
Deal found 5/21![Lufthansa logo]()
$827
This Expedia deal was found by Cheapflights users on 5/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:05 am
PHL
- SOF
2 stops17h 15m
Multiple Airlines
Tue 6/96:10 am
SOF
- PHL
2 stops15h 38m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$837
This oojo deal was found by Cheapflights users on 5/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Tue 6/236:10 am
SOF
- PHL
1 stop16h 55m
Lufthansa
Deal found 5/20![Lufthansa logo]()
$892
This United Airlines deal was found by Cheapflights users on 5/20. 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 6/810:32 am
PHL
- SOF
2 stops18h 38m
United Airlines
Tue 6/236:10 am
SOF
- PHL
1 stop16h 55m
United Airlines
Deal found 5/20![United Airlines logo]()
$900
One-way flights from Philadelphia to SofiaSearch for one-way flight options from Philadelphia to Sofia. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
Search for one-way flight options from Philadelphia to Sofia. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Thu 8/202:48 pm
PHL
- SOF
3 stops39h 37m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$362
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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.
Thu 8/206:45 pm
PHL
- SOF
1 stop11h 40m
British Airways
Deal found 5/19![British Airways logo]()
$383
This Air France deal was found by Cheapflights users on 5/19. 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.
Thu 8/2012:33 pm
PHL
- SOF
2 stops18h 27m
Air France
Deal found 5/19![Air France logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/225:10 pm
PHL
- SOF
3 stops57h 05m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Tue 6/231:28 pm
PHL
- SOF
3 stops36h 47m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Tue 6/99:16 pm
PHL
- SOF
2 stops44h 24m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$531
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Tue 6/161:28 pm
PHL
- SOF
3 stops37h 17m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Wed 6/101:17 pm
PHL
- SOF
2 stops28h 23m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$585
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Sun 6/289:16 pm
PHL
- SOF
3 stops42h 24m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$587
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sat 6/279:16 pm
PHL
- SOF
2 stops40h 54m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$591
Find flight deals from Philadelphia to Sofia
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Sofia (SOF). 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 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $744 (Air France) |
One-way from | $362 (Kiwi.com) |
Popular in | January |
Cheapest in | April |
Average price | $1,176 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia 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 May 24, 2026.
Use the filters below to find and compare flights from Philadelphia to Sofia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Tue 8/11
10:50 am-12:10 pm
2 stops18h 20m
Sofia
Mon 8/31
7:00 pm-4:05 pm
1 stop28h 05m
$762
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Tue 8/4
10:32 am-12:10 pm
2 stops18h 38m
Sofia
Thu 8/20
6:30 am-9:43 am
2 stops34h 13m
$812
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Fri 8/7
10:32 am-11:15 pm
2 stops29h 43m
Sofia
Sun 8/23
8:00 am-12:59 am
2 stops23h 59m
$832
Quickest round-trip
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Tue 8/11
3:05 pm-12:10 pm
2 stops14h 05m
Sofia
Tue 9/1
6:10 am-4:05 pm
1 stop16h 55m
$838
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Wed 6/3
10:05 am-10:20 am
2 stops17h 15m
Sofia
Tue 6/9
2:10 pm-4:05 pm
1 stop32h 55m
$854
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Sun 8/9
3:10 pm-1:35 pm
2 stops15h 25m
Sofia
Mon 8/31
6:20 am-5:54 pm
2 stops18h 34m
$868
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Mon 6/8
10:32 am-12:10 pm
2 stops18h 38m
Sofia
Tue 6/23
6:10 am-4:05 pm
1 stop16h 55m
$900
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Tue 6/9
7:45 pm-11:15 pm
2 stops20h 30m
Sofia
Tue 6/23
6:10 am-4:05 pm
1 stop16h 55m
$900
Cheapest one-way
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Sun 6/28
9:16 pm-10:40 pm
3 stops42h 24m
$587
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Sun 6/28
10:32 am-11:15 pm
2 stops29h 43m
$612
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Sofia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Sofia in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Sofia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Sofia
Have a flexible travel schedule? Discover the best time to fly to Sofia from Philadelphia with our price prediction graph.
PHL-SOF
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 Philadelphia to Sofia
What is the cheapest month to book a flight from Philadelphia to Sofia?
Currently, April is the cheapest month in which you can book a flight from Philadelphia to Sofia (average of $514). Flying from Philadelphia to Sofia in January is currently the most expensive (average of $7,242). 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.
How much does it cost to fly round-trip from Philadelphia to Sofia?
Reviews of airlines servicing Sofia
Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated May 24, 2026.
Read reviews from past customers who have flown United Airlines and Lufthansa from Philadelphia to Sofia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Philadelphia to Sofia
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Complete your trip
Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Philadelphia to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Sofia flights
Browse other Philadelphia and Sofia flight options. Last updated on May 24, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on May 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sofia
Explore flights to Sofia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 24, 2026.
Top 2 airlines flying from Philadelphia to Sofia
Discover the top 2 airlines that operate flights from Philadelphia 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 May 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$776 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$540 | Average$656 | FlexibilityNo cancel fee | On-time69% |