$441+ Cheap flights from Philadelphia (PHL) to Bulgaria
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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SOF
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Bulgaria with Cheapflights
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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 June 15, 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 June 15, 2026.
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/47:45 pm
PHL
- SOF
2 stops15h 55m
United Airlines
Thu 8/206:10 am
SOF
- PHL
2 stops22h 17m
United Airlines
Deal found 6/11![United Airlines logo]()
$718
This Gotogate deal was found by Cheapflights users on 6/14. 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.
Wed 9/23:25 pm
PHL
- SOF
2 stops20h 15m
Multiple Airlines
Thu 9/176:30 am
SOF
- PHL
2 stops15h 17m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$722
This oojo deal was found by Cheapflights users on 6/14. 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.
Wed 9/25:40 pm
PHL
- SOF
1 stop17h 25m
Lufthansa
Thu 9/176:30 am
SOF
- PHL
1 stop16h 35m
Lufthansa
Deal found 6/14![Lufthansa logo]()
$740
This KAYAK deal was found by Cheapflights users on 6/12. 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 7/75:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Mon 8/247:25 pm
SOF
- PHL
2 stops27h 40m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$783
This FlightHub deal was found by Cheapflights users on 6/11. 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 8/410:05 am
PHL
- SOF
2 stops25h 35m
Multiple Airlines
Thu 8/206:30 am
SOF
- PHL
1 stop16h 35m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$795
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Mon 7/65:40 pm
PHL
- SOF
2 stops23h 15m
Austrian Airlines
Tue 8/254:05 pm
SOF
- PHL
2 stops31h 00m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$804
This KAYAK deal was found by Cheapflights users on 6/11. 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 7/75:40 pm
PHL
- SOF
2 stops35h 00m
Austrian Airlines
Sun 8/234:05 pm
SOF
- PHL
2 stops55h 00m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$824
This Booking.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/285:40 pm
PHL
- VAR
1 stop18h 35m
Lufthansa
Tue 8/44:00 pm
VAR
- PHL
2 stops31h 05m
Lufthansa
Deal found 6/13![Lufthansa logo]()
$834
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/73:10 pm
PHL
- SOF
2 stops25h 05m
United Airlines
Fri 8/216:20 am
SOF
- PHL
2 stops22h 07m
United Airlines
Deal found 6/11![United Airlines logo]()
$841
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Thu 7/95:40 pm
PHL
- SOF
1 stop22h 00m
Lufthansa
Mon 8/247:25 pm
SOF
- PHL
2 stops27h 40m
Lufthansa
Deal found 6/11![Lufthansa logo]()
$843
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/1410:39 am
PHL
- SOF
2 stops29h 36m
United Airlines
Tue 8/46:10 am
SOF
- PHL
2 stops34h 35m
United Airlines
Deal found 6/11![United Airlines logo]()
$844
This Booking.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/215:40 pm
PHL
- VAR
1 stop18h 35m
Lufthansa
Tue 8/44:00 pm
VAR
- PHL
2 stops31h 05m
Lufthansa
Deal found 6/13![Lufthansa logo]()
$865
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 June 15, 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 June 15, 2026.
This United Airlines deal was found by Cheapflights users on 6/13. 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 8/410:39 am
PHL
- SOF
2 stops25h 01m
United Airlines
Thu 8/206:10 am
SOF
- PHL
2 stops25h 49m
United Airlines
Deal found 6/13![United Airlines logo]()
$718
This British Airways deal was found by Cheapflights users on 6/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:35 pm
PHL
- SOF
1 stop14h 45m
British Airways
Wed 12/99:00 pm
SOF
- PHL
1 stop26h 15m
British Airways
Deal found 6/14![British Airways logo]()
$740
This United deal was found by Cheapflights users on 6/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:40 pm
PHL
- SOF
2 stops40h 00m
Multiple Airlines
Sun 8/306:20 am
SOF
- PHL
1 stop16h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$846
This Air France deal was found by Cheapflights users on 6/14. 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.
Wed 7/2212:36 pm
PHL
- SOF
2 stops18h 24m
Air France
Thu 8/67:00 am
SOF
- PHL
2 stops19h 15m
Air France
Deal found 6/14![Air France logo]()
$846
This Booking.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/215:40 pm
PHL
- VAR
2 stops14h 35m
Lufthansa
Tue 8/44:00 pm
VAR
- PHL
2 stops31h 05m
Lufthansa
Deal found 6/13![Lufthansa logo]()
$892
This Ovago deal was found by Cheapflights users on 6/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:40 pm
PHL
- BOJ
2 stops14h 25m
Austrian Airlines
Tue 9/291:05 pm
BOJ
- PHL
2 stops34h 00m
Austrian Airlines
Deal found 6/12![Austrian Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/226:10 am
PHL
- SOF
2 stops34h 05m
United Airlines
Thu 8/66:10 am
SOF
- PHL
2 stops22h 09m
United Airlines
Deal found 6/11![United Airlines logo]()
$843
This Expedia deal was found by Cheapflights users on 6/10. 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.
Fri 8/145:40 pm
PHL
- SOF
1 stop21h 50m
Multiple Airlines
Sun 8/306:55 pm
SOF
- PHL
2 stops28h 10m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$882
This United Airlines deal was found by Cheapflights users on 6/14. 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 7/1410:39 am
PHL
- SOF
2 stops29h 36m
United Airlines
Tue 8/46:10 am
SOF
- PHL
2 stops34h 35m
United Airlines
Deal found 6/14![United Airlines logo]()
$844
This oojo deal was found by Cheapflights users on 6/10. 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.
Sun 9/65:40 pm
PHL
- VAR
1 stop18h 55m
Lufthansa
Sat 9/194:00 pm
VAR
- PHL
2 stops31h 05m
Lufthansa
Deal found 6/10![Lufthansa logo]()
$1,011
This United Airlines deal was found by Cheapflights users on 6/13. 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 7/136:00 am
PHL
- SOF
2 stops34h 15m
United Airlines
Mon 7/202:20 pm
SOF
- PHL
2 stops31h 29m
United Airlines
Deal found 6/13![United Airlines logo]()
$858
This Expedia deal was found by Cheapflights users on 6/10. 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 9/610:05 am
PHL
- VAR
2 stops26h 30m
Multiple Airlines
Sat 9/194:00 pm
VAR
- PHL
2 stops31h 05m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/147:40 pm
PHL
- SOF
2 stops20h 35m
United Airlines
Sun 8/306:10 am
SOF
- PHL
2 stops34h 33m
United Airlines
Deal found 6/10![United Airlines logo]()
$864
This United deal was found by Cheapflights users on 6/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/123:10 pm
PHL
- VAR
2 stops36h 50m
Multiple Airlines
Sun 7/199:40 am
VAR
- PHL
2 stops20h 40m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,028
This KAYAK deal was found by Cheapflights users on 6/11. 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 9/2210:35 am
PHL
- VAR
2 stops21h 40m
Austrian Airlines
Mon 10/54:00 pm
VAR
- PHL
2 stops31h 05m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$1,264
This Mytrip deal was found by Cheapflights users on 6/13. 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 7/288:25 pm
PHL
- VAR
2 stops29h 10m
Multiple Airlines
Tue 8/44:00 pm
VAR
- PHL
3 stops33h 55m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,180
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/278:25 pm
PHL
- BOJ
1 stop18h 20m
Multiple Airlines
Mon 9/284:40 pm
BOJ
- PHL
2 stops33h 15m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,194
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/308:25 pm
PHL
- BOJ
1 stop32h 15m
Multiple Airlines
Mon 9/284:40 pm
BOJ
- PHL
2 stops33h 15m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,231
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/278:25 pm
PHL
- BOJ
1 stop18h 20m
Multiple Airlines
Fri 10/24:45 pm
BOJ
- PHL
2 stops33h 10m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,258
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Fri 8/288:25 pm
PHL
- BOJ
1 stop19h 05m
Multiple Airlines
Mon 9/284:40 pm
BOJ
- PHL
2 stops33h 15m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,287
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/318:25 pm
PHL
- BOJ
1 stop32h 50m
Multiple Airlines
Wed 9/304:40 pm
BOJ
- PHL
2 stops33h 15m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,290
This Mytrip deal was found by Cheapflights users on 6/11. 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 9/226:45 pm
PHL
- BOJ
2 stops44h 50m
Multiple Airlines
Mon 10/52:05 pm
BOJ
- PHL
3 stops35h 50m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,316
This United deal was found by Cheapflights users on 6/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:05 am
PHL
- BOJ
2 stops21h 15m
Multiple Airlines
Sun 8/91:05 pm
BOJ
- PHL
2 stops58h 00m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,352
This Mytrip deal was found by Cheapflights users on 6/13. 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 7/213:25 pm
PHL
- VAR
3 stops29h 00m
Multiple Airlines
Tue 8/412:00 pm
VAR
- PHL
2 stops35h 05m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,541
Last-minute flights from Philadelphia to BulgariaDiscover last-minute flight deals from Philadelphia to Bulgaria. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Bulgaria. Data last updated June 15, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Mon 7/65:40 pm
PHL
- SOF
2 stops23h 15m
Austrian Airlines
Mon 8/241:40 pm
SOF
- PHL
2 stops33h 25m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$804
This KAYAK deal was found by Cheapflights users on 6/12. 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 7/75:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Mon 8/247:25 pm
SOF
- PHL
2 stops27h 40m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$783
This KAYAK deal was found by Cheapflights users on 6/11. 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 7/75:40 pm
PHL
- SOF
2 stops35h 00m
Austrian Airlines
Sun 8/234:05 pm
SOF
- PHL
2 stops55h 00m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$824
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/73:10 pm
PHL
- SOF
2 stops25h 05m
United Airlines
Fri 8/216:20 am
SOF
- PHL
2 stops22h 23m
United Airlines
Deal found 6/12![United Airlines logo]()
$841
This KAYAK deal was found by Cheapflights users on 6/12. 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 7/75:40 pm
PHL
- SOF
1 stop17h 20m
Lufthansa
Tue 8/256:40 pm
SOF
- PHL
1 stop28h 25m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$865
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Thu 7/95:40 pm
PHL
- SOF
1 stop22h 00m
Lufthansa
Mon 8/247:25 pm
SOF
- PHL
2 stops27h 40m
Lufthansa
Deal found 6/11![Lufthansa logo]()
$843
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Thu 7/95:40 pm
PHL
- SOF
2 stops14h 40m
Austrian Airlines
Mon 8/244:05 pm
SOF
- PHL
2 stops31h 00m
Austrian Airlines
Deal found 6/11![Austrian Airlines logo]()
$864
This FlightHub deal was found by Cheapflights users on 6/13. 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 7/135:40 pm
PHL
- SOF
1 stop22h 00m
Multiple Airlines
Mon 7/203:40 pm
SOF
- PHL
2 stops33h 12m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 6/13. 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 7/136:00 am
PHL
- SOF
2 stops34h 15m
United Airlines
Mon 7/202:20 pm
SOF
- PHL
2 stops31h 29m
United Airlines
Deal found 6/13![United Airlines logo]()
$858
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/1410:39 am
PHL
- SOF
2 stops29h 36m
United Airlines
Tue 8/46:10 am
SOF
- PHL
2 stops34h 35m
United Airlines
Deal found 6/11![United Airlines logo]()
$844
This United Airlines deal was found by Cheapflights users on 6/14. 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 7/227:45 pm
PHL
- SOF
2 stops20h 05m
United Airlines
Thu 8/66:30 am
SOF
- PHL
1 stop16h 35m
United Airlines
Deal found 6/14![United Airlines logo]()
$847
This Booking.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/285:40 pm
PHL
- VAR
1 stop18h 35m
Lufthansa
Tue 8/44:00 pm
VAR
- PHL
2 stops31h 05m
Lufthansa
Deal found 6/13![Lufthansa logo]()
$834
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 June 15, 2026.
Search for one-way flight options from Philadelphia to Bulgaria. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/141:28 pm
PHL
- VAR
3 stops39h 57m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/128:10 am
PHL
- VAR
3 stops45h 25m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$464
This KAYAK deal was found by Cheapflights users on 6/12. 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.
Mon 7/1311:38 am
PHL
- VAR
2 stops25h 32m
SWISS
Deal found 6/12![SWISS logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/912:46 pm
PHL
- VAR
3 stops40h 49m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$479
This KAYAK deal was found by Cheapflights users on 6/12. 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 7/145:40 pm
PHL
- VAR
1 stop18h 35m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$484
This Booking.com deal was found by Cheapflights users on 6/12. 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 7/125:40 pm
PHL
- VAR
1 stop34h 20m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$495
This Orbitz deal was found by Cheapflights users on 6/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:40 pm
PHL
- VAR
2 stops43h 30m
SWISS
Deal found 6/12![SWISS logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/1112:56 pm
PHL
- VAR
3 stops46h 39m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$513
This KAYAK deal was found by Cheapflights users on 6/12. 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.
Fri 7/105:40 pm
PHL
- VAR
2 stops33h 00m
SWISS
Deal found 6/12![SWISS logo]()
$564
This FlightHub deal was found by Cheapflights users on 6/12. 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 7/105:40 pm
PHL
- VAR
1 stop32h 00m
Lufthansa
Deal found 6/12![Lufthansa logo]()
$577
This KAYAK deal was found by Cheapflights users on 6/10. 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 6/285:40 pm
PHL
- BOJ
2 stops35h 40m
Austrian Airlines
Deal found 6/10![Austrian Airlines logo]()
$5,111
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $718 (United Airlines) |
One-way from | $441 (Kiwi.com) |
Popular in | January |
Cheapest in | April |
Average price | $1,060 |
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 2,558,603 searches. Data last updated June 15, 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 - SOF
PHLSOF
Philadelphia
Tue 8/4
10:39 am-6:40 pm
2 stops25h 01m
Sofia
Thu 8/20
6:10 am-12:59 am
2 stops25h 49m
$718
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Sun 12/6
6:35 pm-4:20 pm
1 stop14h 45m
Sofia
Wed 12/9
9:00 pm-4:15 pm
1 stop26h 15m
$740
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Wed 7/22
6:10 am-11:15 pm
2 stops34h 05m
Sofia
Thu 8/6
6:10 am-9:19 pm
2 stops22h 09m
$843
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Tue 7/14
10:39 am-11:15 pm
2 stops29h 36m
Sofia
Tue 8/4
6:10 am-9:45 am
2 stops34h 35m
$844
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Sat 8/15
7:40 pm-6:40 pm
2 stops40h 00m
Sofia
Sun 8/30
6:20 am-4:05 pm
1 stop16h 45m
$846
Quickest round-trip
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Wed 7/22
12:36 pm-2:00 pm
2 stops18h 24m
Sofia
Thu 8/6
7:00 am-7:15 pm
2 stops19h 15m
$846
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Mon 7/13
6:00 am-11:15 pm
2 stops34h 15m
Sofia
Mon 7/20
2:20 pm-2:49 pm
2 stops31h 29m
$858
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Fri 8/14
7:40 pm-11:15 pm
2 stops20h 35m
Sofia
Sun 8/30
6:10 am-9:43 am
2 stops34h 33m
$864
PhiladelphiaSofia
PHL - SOF
PHLSOF
Philadelphia
Fri 8/14
5:40 pm-10:30 pm
1 stop21h 50m
Sofia
Sun 8/30
6:55 pm-4:05 pm
2 stops28h 10m
$882
PhiladelphiaVarna
PHL - VAR
PHLVAR
Philadelphia
Tue 7/21
5:40 pm-3:15 pm
2 stops14h 35m
Varna
Tue 8/4
4:00 pm-4:05 pm
2 stops31h 05m
$892
Showing 1-10 of 32 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-VAR
PHL-BOJ
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-VAR
PHL-BOJ
PHL-SOF
What is the cheapest month to book a flight from Philadelphia to Bulgaria?
Currently, April is the cheapest month in which you can book a flight from Philadelphia to Bulgaria (average of $375). 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 June 15, 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.
Food
6.6
Crew
8.1
Entertainment
7.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Crew
8.1
Entertainment
7.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Crew
8.1
Entertainment
7.1
Boarding
7.7
Overall
7.4
Comfort
7.3
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 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.
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Philadelphia and Bulgaria flights
Browse other Philadelphia and Bulgaria flight options. Last updated on June 15, 2026.
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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 2,558,603 searches. Data last updated June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$487 | Average$1,067 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$540 | Average$614 | FlexibilityNo cancel fee | On-time69% |