$492+ Cheap flights from Philadelphia (PHL) to Bulgaria
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOF
Dec 2 — Dec 91
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Bulgaria with Cheapflights
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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 Bulgaria
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Cheapest flights from Philadelphia to BulgariaExplore the most affordable flight options available from Philadelphia to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2026.
Explore the most affordable flight options available from Philadelphia to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2026.
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:40 pm -
1 stop12h 45m
Tue 12/156:25 am -
1 stop16h 40m
Deal found 10/30![Lufthansa logo]()
$690
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/299:15 am -
2 stops30h 45m
Tue 12/156:25 am -
1 stop16h 40m
Deal found 10/30![United Airlines logo]()
$728
This Travelocity deal was found by Cheapflights users on 10/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:05 pm -
2 stops22h 55m
Tue 12/152:10 pm -
2 stops15h 36m
Deal found 10/30![Multiple Airlines logo]()
$736
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Sun 11/15:40 pm -
2 stops35h 10m
Mon 11/93:00 pm -
2 stops37h 38m
Deal found 10/31![Multiple Airlines logo]()
$745
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 10/316:46 pm -
2 stops46h 14m
Mon 11/97:55 am -
2 stops39h 10m
Deal found 10/29![United Airlines logo]()
$757
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/135:40 pm -
1 stop12h 45m
Sun 12/206:25 am -
1 stop16h 40m
Deal found 10/29![Lufthansa logo]()
$763
Best flights from Philadelphia to BulgariaDiscover carefully curated flight deals from Philadelphia to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 2, 2026.
Discover carefully curated flight deals from Philadelphia to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 2, 2026.
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/299:15 am -
2 stops30h 45m
Tue 12/156:25 am -
1 stop16h 40m
Deal found 10/30![United Airlines logo]()
$728
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/135:40 pm -
1 stop12h 45m
Sun 12/206:25 am -
1 stop16h 40m
Deal found 10/29![Lufthansa logo]()
$763
This Expedia deal was found by Cheapflights users on 10/29. 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.
Sun 12/135:40 pm -
1 stop12h 45m
Sun 12/206:45 pm -
2 stops52h 20m
Deal found 10/29![Multiple Airlines logo]()
$778
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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.
Sun 12/135:40 pm -
2 stops23h 15m
Sun 12/207:55 am -
2 stops15h 10m
Deal found 10/29![Austrian Airlines logo]()
$795
This Trip.com deal was found by Cheapflights users on 10/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/131:20 pm -
3 stops17h 55m
Sun 12/2011:15 am -
3 stops41h 26m
Deal found 10/29![SWISS logo]()
$1,124
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/257:37 pm -
2 stops44h 23m
Tue 1/126:25 am -
1 stop16h 40m
Deal found 10/29![United Airlines logo]()
$894
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Fri 12/259:15 am -
2 stops21h 10m
Sun 1/106:25 am -
1 stop16h 40m
Deal found 11/1![Multiple Airlines logo]()
$970
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/257:37 pm -
2 stops33h 13m
Sun 1/107:55 am -
2 stops15h 10m
Deal found 11/1![United Airlines logo]()
$912
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/257:37 pm -
2 stops44h 23m
Mon 1/112:10 pm -
1 stop32h 55m
Deal found 10/29![United Airlines logo]()
$927
Last-minute flights from Philadelphia to BulgariaDiscover last-minute flight deals from Philadelphia to Bulgaria. Data last updated November 2, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Bulgaria. Data last updated November 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 10/316:46 pm -
2 stops46h 14m
Mon 11/97:55 am -
2 stops39h 10m
Deal found 10/29![United Airlines logo]()
$757
This FlightHub deal was found by Cheapflights users on 10/31. 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.
Sun 11/15:40 pm -
2 stops35h 10m
Mon 11/93:00 pm -
2 stops37h 38m
Deal found 10/31![Multiple Airlines logo]()
$745
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/19:45 am -
2 stops30h 15m
Sat 11/72:00 pm -
2 stops57h 21m
Deal found 10/28![United Airlines logo]()
$796
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:40 pm -
1 stop12h 45m
Tue 12/156:25 am -
1 stop16h 40m
Deal found 10/30![Lufthansa logo]()
$690
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/299:15 am -
2 stops30h 45m
Tue 12/156:25 am -
1 stop16h 40m
Deal found 10/30![United Airlines logo]()
$728
This Travelocity deal was found by Cheapflights users on 10/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:05 pm -
2 stops22h 55m
Tue 12/152:10 pm -
2 stops15h 36m
Deal found 10/30![Multiple Airlines logo]()
$736
One-way flights from Philadelphia to BulgariaSearch for one-way flight options from Philadelphia to Bulgaria. Find affordable one-way fares based on user searches. Data last updated November 2, 2026.
Search for one-way flight options from Philadelphia to Bulgaria. Find affordable one-way fares based on user searches. Data last updated November 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/1511:07 am -
3 stops41h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$492
This oojo deal was found by Cheapflights users on 10/30. 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 12/155:40 pm -
1 stop12h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Lufthansa logo]()
$582
This Justfly.com deal was found by Cheapflights users on 10/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/159:15 am -
2 stops21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Air Canada logo]()
$595
Find flight deals from Philadelphia to Bulgaria
Keep the following information in mind while searching for Philadelphia to Bulgaria flight deals. Data was last updated November 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $690 (Gotogate) |
One-way from | $492 (Kiwi.com) |
Popular in | January |
Cheapest in | March |
Average price | $656 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Bulgaria 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 7,457,451 searches. Data last updated November 2, 2026.
Use the filters below to find and compare flights from Philadelphia to Bulgaria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 12/15
11:07 am-11:20 am
3 stops41h 13m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$492
Quickest round-trip
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Tue 12/15
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$582
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Sun 11/29
9:15 am-11:00 pm
2 stops30h 45m
Sofia
Tue 12/15
6:25 am-4:05 pm
1 stop16h 40m
$728
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Sun 12/13
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Sun 12/20
6:25 am-4:05 pm
1 stop16h 40m
$763
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Sun 12/13
5:40 pm-1:25 pm
1 stop12h 45m
Sofia
Sun 12/20
6:45 pm-4:05 pm
2 stops52h 20m
$778
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Sun 12/13
5:40 pm-11:55 pm
2 stops23h 15m
Sofia
Sun 12/20
7:55 am-4:05 pm
2 stops15h 10m
$795
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Fri 12/25
7:37 pm-11:00 pm
2 stops44h 23m
Sofia
Tue 1/12
6:25 am-4:05 pm
1 stop16h 40m
$894
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Fri 12/25
7:37 pm-11:50 am
2 stops33h 13m
Sofia
Sun 1/10
7:55 am-4:05 pm
2 stops15h 10m
$912
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Fri 12/25
7:37 pm-11:00 pm
2 stops44h 23m
Sofia
Mon 1/11
2:10 pm-4:05 pm
1 stop32h 55m
$927
PhiladelphiaSofia
PHL Philadelphia - SOF Sofia
PHLSOF
Philadelphia
Fri 12/25
9:15 am-1:25 pm
2 stops21h 10m
Sofia
Sun 1/10
6:25 am-4:05 pm
1 stop16h 40m
$970
Showing 1-10 of 11 resultsSorted by cheapest first
Best time to book a flight from Philadelphia to Bulgaria
Have a flexible travel schedule? Discover the best time to fly to Bulgaria 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 Bulgaria
PHL-BG0
PHL-SOF
What is the cheapest month to book a flight from Philadelphia to Bulgaria?
Currently, March is the cheapest month in which you can book a flight from Philadelphia to Bulgaria (average of $546). Flying from Philadelphia to Bulgaria 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.
Reviews of airlines servicing Bulgaria
Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated November 2, 2026.
Peruse reviews from past customers who have flown with United Airlines and Lufthansa from Philadelphia to Bulgaria to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Overall
7.3
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Food
6.7
Overall
7.3
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Food
6.7
Overall
7.3
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Bulgaria. 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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Alternative routes for Philadelphia to Bulgaria
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Complete your trip
Complete your trip to Bulgaria by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Bulgaria by cabin class
Find flights from Philadelphia to Bulgaria, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Bulgaria flights
Browse other Philadelphia and Bulgaria flight options. Last updated on November 2, 2026.
Popular flight searches
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Fly to Bulgaria regions
Consider these flights traveling to Bulgaria regions.
Top 2 airlines flying from Philadelphia to Bulgaria
Discover the top 2 airlines that operate flights from Philadelphia to Bulgaria. 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 7,457,451 searches. Data last updated November 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$540 | Average$737 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$546 | Average$1,094 | FlexibilityNo cancel fee | On-time76% |