$314+ Cheap flights from Seattle (SEA) 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Jun 15 — Jun 221
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bulgaria with Cheapflights
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Cheapest flights from Seattle to BulgariaExplore the most affordable flight options available from Seattle to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
Explore the most affordable flight options available from Seattle to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
This Expedia deal was found by Cheapflights users on 5/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:00 am
SEA
- SOF
2 stops19h 35m
Air Canada
Sat 9/266:10 am
SOF
- SEA
2 stops24h 54m
Air Canada
Deal found 5/13![Air Canada logo]()
$653
This Lufthansa deal was found by Cheapflights users on 5/12. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:50 pm
SEA
- SOF
1 stop18h 25m
Lufthansa
Fri 9/186:10 am
SOF
- SEA
2 stops15h 45m
Lufthansa
Deal found 5/12![Lufthansa logo]()
$657
This Travelocity deal was found by Cheapflights users on 5/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am
SEA
- SOF
2 stops18h 10m
Air Canada
Fri 9/186:20 am
SOF
- SEA
2 stops18h 02m
Air Canada
Deal found 5/13![Air Canada logo]()
$684
This FlightHub deal was found by Cheapflights users on 5/12. 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.
Sun 9/67:15 pm
SEA
- SOF
1 stop27h 30m
Turkish Airlines
Tue 9/223:50 pm
SOF
- SEA
1 stop35h 30m
Turkish Airlines
Deal found 5/12![Turkish Airlines logo]()
$708
This Gotogate deal was found by Cheapflights users on 5/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:15 pm
SEA
- SOF
1 stop27h 30m
Turkish Airlines
Fri 9/41:05 pm
SOF
- SEA
1 stop31h 35m
Turkish Airlines
Deal found 5/12![Turkish Airlines logo]()
$735
This Gotogate deal was found by Cheapflights users on 5/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:50 pm
SEA
- SOF
1 stop18h 25m
Multiple Airlines
Wed 11/186:10 am
SOF
- SEA
2 stops22h 16m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$740
This FlightHub deal was found by Cheapflights users on 5/12. 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 8/77:15 pm
SEA
- SOF
1 stop15h 00m
Turkish Airlines
Fri 9/41:05 pm
SOF
- SEA
1 stop31h 35m
Turkish Airlines
Deal found 5/12![Turkish Airlines logo]()
$744
This Turkish Airlines deal was found by Cheapflights users on 5/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:15 pm
SEA
- SOF
1 stop33h 45m
Turkish Airlines
Wed 11/189:40 pm
SOF
- SEA
1 stop29h 25m
Turkish Airlines
Deal found 5/11![Turkish Airlines logo]()
$749
This Gotogate deal was found by Cheapflights users on 5/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am
SEA
- SOF
2 stops18h 10m
Multiple Airlines
Fri 9/186:20 am
SOF
- SEA
1 stop15h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$753
This Gotogate deal was found by Cheapflights users on 5/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:00 am
SEA
- SOF
2 stops18h 10m
Multiple Airlines
Thu 8/276:10 am
SOF
- SEA
1 stop20h 49m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$756
This SmartFares deal was found by Cheapflights users on 5/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:15 pm
SEA
- VAR
1 stop27h 15m
Turkish Airlines
Wed 9/3010:10 pm
VAR
- SEA
1 stop29h 10m
Turkish Airlines
Deal found 5/14![Turkish Airlines logo]()
$821
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:10 pm
SEA
- VAR
1 stop21h 45m
Turkish Airlines
Tue 9/159:20 am
VAR
- SEA
1 stop17h 55m
Turkish Airlines
Deal found 5/11![Turkish Airlines logo]()
$824
Best flights from Seattle to BulgariaDiscover carefully curated flight deals from Seattle to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
Discover carefully curated flight deals from Seattle to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
This oojo deal was found by Cheapflights users on 5/15. 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 9/66:50 pm
SEA
- SOF
1 stop18h 25m
Lufthansa
Tue 9/226:10 am
SOF
- SEA
1 stop20h 49m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$764
This United Airlines deal was found by Cheapflights users on 5/15. 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 10/186:50 pm
SEA
- SOF
1 stop13h 50m
United Airlines
Thu 10/226:30 am
SOF
- SEA
2 stops17h 52m
United Airlines
Deal found 5/15![United Airlines logo]()
$766
This KLM deal was found by Cheapflights users on 5/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:50 am
SEA
- SOF
2 stops18h 10m
KLM
Tue 9/227:00 am
SOF
- SEA
1 stop14h 47m
KLM
Deal found 5/13![KLM logo]()
$772
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:10 pm
SEA
- VAR
1 stop21h 45m
Turkish Airlines
Tue 9/159:20 am
VAR
- SEA
1 stop17h 55m
Turkish Airlines
Deal found 5/11![Turkish Airlines logo]()
$824
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 am
SEA
- BOJ
2 stops18h 10m
Multiple Airlines
Wed 9/3012:35 pm
BOJ
- SEA
1 stop14h 24m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,045
This United Airlines deal was found by Cheapflights users on 5/15. 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 9/69:00 am
SEA
- SOF
2 stops28h 15m
United Airlines
Tue 9/226:10 am
SOF
- SEA
2 stops37h 26m
United Airlines
Deal found 5/15![United Airlines logo]()
$780
This Lufthansa deal was found by Cheapflights users on 5/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:50 pm
SEA
- SOF
1 stop13h 50m
Lufthansa
Fri 8/217:25 pm
SOF
- SEA
1 stop31h 34m
Lufthansa
Deal found 5/14![Lufthansa logo]()
$848
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 9/1211:10 pm
SEA
- SOF
2 stops26h 30m
United Airlines
Tue 9/156:10 am
SOF
- SEA
1 stop15h 45m
United Airlines
Deal found 5/12![United Airlines logo]()
$791
This Turkish Airlines deal was found by Cheapflights users on 5/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:15 pm
SEA
- VAR
1 stop16h 05m
Turkish Airlines
Sun 8/309:20 am
VAR
- SEA
1 stop18h 00m
Turkish Airlines
Deal found 5/15![Turkish Airlines logo]()
$971
This Justfly.com deal was found by Cheapflights users on 5/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:50 pm
SEA
- VAR
2 stops28h 35m
Lufthansa
Wed 8/199:30 pm
VAR
- SEA
1 stop29h 29m
Lufthansa
Deal found 5/11![Lufthansa logo]()
$903
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Sat 8/1511:00 pm
SEA
- SOF
2 stops33h 40m
United Airlines
Mon 8/316:10 am
SOF
- SEA
2 stops26h 35m
United Airlines
Deal found 5/11![United Airlines logo]()
$841
This Turkish Airlines deal was found by Cheapflights users on 5/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:35 pm
SEA
- VAR
1 stop33h 55m
Turkish Airlines
Sat 9/1910:10 pm
VAR
- SEA
1 stop29h 10m
Turkish Airlines
Deal found 5/15![Turkish Airlines logo]()
$988
This Justfly.com deal was found by Cheapflights users on 5/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:50 pm
SEA
- VAR
2 stops34h 25m
Lufthansa
Tue 9/1511:45 am
VAR
- SEA
1 stop34h 10m
Lufthansa
Deal found 5/14![Lufthansa logo]()
$979
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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.
Sat 8/88:15 am
SEA
- BOJ
2 stops18h 05m
Multiple Airlines
Wed 8/2612:35 pm
BOJ
- SEA
1 stop14h 24m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,228
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 8/138:10 am
SEA
- BOJ
2 stops18h 10m
Multiple Airlines
Sun 8/309:10 am
BOJ
- SEA
2 stops19h 57m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$3,021
This Cheapflightsfares deal was found by Cheapflights users on 5/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:10 pm
SEA
- BOJ
2 stops15h 05m
Multiple Airlines
Wed 8/1912:35 pm
BOJ
- SEA
1 stop14h 24m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$3,870
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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.
Wed 8/122:10 pm
SEA
- BOJ
2 stops15h 05m
Multiple Airlines
Sun 8/309:10 am
BOJ
- SEA
2 stops19h 57m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$5,653
Last-minute flights from Seattle to BulgariaDiscover last-minute flight deals from Seattle to Bulgaria. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bulgaria. Data last updated May 16, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 5/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:50 pm
SEA
- BOJ
2 stops22h 45m
Multiple Airlines
Tue 5/2611:25 pm
BOJ
- SEA
1 stop27h 45m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,262
This Justfly.com deal was found by Cheapflights users on 5/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:10 pm
SEA
- SOF
1 stop15h 05m
Turkish Airlines
Wed 6/173:50 pm
SOF
- SEA
1 stop35h 30m
Turkish Airlines
Deal found 5/11![Turkish Airlines logo]()
$795
This Trip.com deal was found by Cheapflights users on 5/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:05 pm
SEA
- SOF
2 stops21h 30m
Multiple Airlines
Wed 6/175:45 am
SOF
- SEA
2 stops44h 15m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$846
This Gotogate deal was found by Cheapflights users on 5/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:45 am
SEA
- SOF
2 stops21h 15m
Multiple Airlines
Tue 6/1612:55 pm
SOF
- SEA
1 stop14h 04m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$930
This Travelocity deal was found by Cheapflights users on 5/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:45 am
SEA
- SOF
2 stops37h 35m
SWISS
Tue 6/161:05 pm
SOF
- SEA
2 stops39h 25m
SWISS
Deal found 5/12![SWISS logo]()
$939
This Booking.com deal was found by Cheapflights users on 5/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:10 pm
SEA
- SOF
1 stop33h 50m
Turkish Airlines
Tue 6/303:50 pm
SOF
- SEA
1 stop35h 30m
Turkish Airlines
Deal found 5/14![Turkish Airlines logo]()
$952
This Mytrip deal was found by Cheapflights users on 5/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:05 pm
SEA
- VAR
3 stops23h 20m
Multiple Airlines
Thu 6/185:00 am
VAR
- SEA
2 stops21h 00m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,004
This FlightHub deal was found by Cheapflights users on 5/12. 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.
Thu 6/116:50 pm
SEA
- VAR
2 stops34h 25m
Lufthansa
Thu 6/189:30 am
VAR
- SEA
2 stops23h 12m
Lufthansa
Deal found 5/12![Lufthansa logo]()
$1,023
This FlightHub deal was found by Cheapflights users on 5/12. 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.
Thu 6/117:10 pm
SEA
- VAR
1 stop21h 45m
Turkish Airlines
Thu 6/1810:10 pm
VAR
- SEA
1 stop29h 10m
Turkish Airlines
Deal found 5/12![Turkish Airlines logo]()
$1,024
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Thu 6/255:45 am
SEA
- SOF
3 stops30h 00m
Multiple Airlines
Sat 8/13:10 pm
SOF
- SEA
3 stops32h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,052
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Tue 6/306:50 pm
SEA
- SOF
1 stop18h 25m
Multiple Airlines
Mon 7/131:40 pm
SOF
- SEA
2 stops41h 06m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,047
One-way flights from Seattle to BulgariaSearch for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
Search for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:00 pm
SEA
- SOF
3 stops44h 15m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:00 pm
SEA
- SOF
3 stops34h 45m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:00 pm
SEA
- SOF
3 stops34h 45m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 8/293:40 pm
SEA
- SOF
3 stops38h 55m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 7/711:25 pm
SEA
- SOF
3 stops33h 30m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 8/2911:00 pm
SEA
- SOF
2 stops27h 10m
United Airlines
Deal found 5/12![United Airlines logo]()
$376
This SmartFares deal was found by Cheapflights users on 5/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:20 pm
SEA
- SOF
1 stop31h 05m
British Airways
Deal found 5/15![British Airways logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/27:35 pm
SEA
- SOF
2 stops53h 45m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$439
This KAYAK deal was found by Cheapflights users on 5/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:20 pm
SEA
- VAR
2 stops38h 15m
Lufthansa
Deal found 5/13![Lufthansa logo]()
$634
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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.
Sat 8/18:15 am
SEA
- BOJ
2 stops18h 05m
Austrian Airlines
Deal found 5/15![Austrian Airlines logo]()
$701
This BusinessClass deal was found by Cheapflights users on 5/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:50 pm
SEA
- BOJ
2 stops55h 30m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$710
Find flight deals from Seattle to Bulgaria
Keep the following information in mind while searching for Seattle to Bulgaria flight deals. Data was last updated May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $653 (Expedia) |
One-way from | $314 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $734 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 May 16, 2026.
Use the filters below to find and compare flights from Seattle to Bulgaria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sun 9/6
6:50 pm-11:15 pm
1 stop18h 25m
Sofia
Tue 9/22
6:10 am-4:59 pm
1 stop20h 49m
$764
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sun 10/18
6:50 pm-6:40 pm
1 stop13h 50m
Sofia
Thu 10/22
6:30 am-2:22 pm
2 stops17h 52m
$766
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sun 9/6
9:50 am-2:00 pm
2 stops18h 10m
Sofia
Tue 9/22
7:00 am-11:47 am
1 stop14h 47m
$772
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sun 9/6
9:00 am-11:15 pm
2 stops28h 15m
Sofia
Tue 9/22
6:10 am-9:36 am
2 stops37h 26m
$780
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sat 9/12
11:10 pm-11:40 am
2 stops26h 30m
Sofia
Tue 9/15
6:10 am-11:55 am
1 stop15h 45m
$791
SeattleVarna
SEA - VAR
SEAVAR
Seattle/Tacoma Intl
Sun 8/2
7:10 pm-2:55 am
1 stop21h 45m
Varna
Tue 9/15
9:20 am-5:15 pm
1 stop17h 55m
$824
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sat 8/15
11:00 pm-6:40 pm
2 stops33h 40m
Sofia
Mon 8/31
6:10 am-10:45 pm
2 stops26h 35m
$841
SeattleSofia
SEA - SOF
SEASOF
Seattle/Tacoma Intl
Sun 7/26
6:50 pm-6:40 pm
1 stop13h 50m
Sofia
Fri 8/21
7:25 pm-4:59 pm
1 stop31h 34m
$848
SeattleVarna
SEA - VAR
SEAVAR
Seattle/Tacoma Intl
Wed 7/29
6:50 pm-9:25 am
2 stops28h 35m
Varna
Wed 8/19
9:30 pm-4:59 pm
1 stop29h 29m
$903
SeattleVarna
SEA - VAR
SEAVAR
Seattle/Tacoma Intl
Wed 8/12
7:15 pm-9:20 pm
1 stop16h 05m
Varna
Sun 8/30
9:20 am-5:20 pm
1 stop18h 00m
$971
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from Seattle to Bulgaria
Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Seattle with our price prediction graph.
SEA-SOF
SEA-VAR
SEA-BOJ
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 Seattle to Bulgaria
SEA-BG0
SEA-SOF
SEA-VAR
SEA-BOJ
How far ahead should I book a flight from Seattle to Bulgaria?
Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Bulgaria. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to Bulgaria?
Currently, August is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $228). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $716). 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 May 16, 2026.
Read reviews from past customers who have flown KLM,Austrian Airlines, andTurkish Airlines from Seattle to Bulgaria. 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.
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Comfort
7.7
Overall
7.8
Food
7.3
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle 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 Seattle 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 Seattle to Bulgaria by cabin class
Find flights from Seattle to Bulgaria, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Bulgaria flights
Browse other Seattle and Bulgaria flight options. Last updated on May 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Bulgaria flights
Consider these flights traveling from Seattle to Bulgaria.
Fly to Bulgaria regions
Consider these flights traveling to Bulgaria regions.
Top 5 airlines flying from Seattle to Bulgaria
Discover the top 5 airlines that operate flights from Seattle 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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$908 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$540 | Average$1,087 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$572 | Average$846 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$620 | Average$840 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$884 | Average$897 | FlexibilityNo cancel fee | On-time78% |