$270+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bulgaria with Cheapflights
1. Tell us where you want to go
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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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 August 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 August 16, 2026.
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:05 pm -
2 stops37h 15m
Wed 11/186:25 am -
2 stops21h 57m
Deal found 8/11![Multiple Airlines logo]()
$724
This Gotogate deal was found by Cheapflights users on 8/11. 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.
Mon 11/91:50 pm -
1 stop13h 35m
Tue 12/86:25 am -
2 stops25h 32m
Deal found 8/11![Multiple Airlines logo]()
$731
This oojo deal was found by Cheapflights users on 8/11. 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.
Mon 11/91:50 pm -
1 stop13h 35m
Wed 11/186:25 am -
1 stop15h 35m
Deal found 8/11![Lufthansa logo]()
$734
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:15 pm -
1 stop33h 45m
Tue 10/203:50 pm -
1 stop35h 30m
Deal found 8/15![Turkish Airlines logo]()
$737
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:15 pm -
1 stop15h 05m
Tue 10/203:50 pm -
1 stop35h 30m
Deal found 8/11![Turkish Airlines logo]()
$739
This Turkish Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 11/97:05 pm -
1 stop34h 05m
Tue 12/89:45 pm -
1 stop29h 25m
Deal found 8/11![Turkish Airlines logo]()
$740
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:50 pm -
1 stop13h 35m
Tue 12/86:25 am -
2 stops22h 34m
Deal found 8/12![Lufthansa logo]()
$742
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 11/912:20 pm -
2 stops20h 00m
Tue 12/86:25 am -
3 stops26h 56m
Deal found 8/11![United Airlines logo]()
$761
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am -
3 stops33h 00m
Tue 9/226:45 pm -
3 stops27h 10m
Deal found 8/15![Multiple Airlines logo]()
$763
This United deal was found by Cheapflights users on 8/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:52 pm -
2 stops34h 23m
Mon 9/2112:15 pm -
2 stops33h 40m
Deal found 8/15![Multiple Airlines logo]()
$921
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:10 am -
2 stops21h 05m
Sun 9/279:50 am -
2 stops36h 05m
Deal found 8/13![Multiple Airlines logo]()
$957
This KAYAK deal was found by Cheapflights users on 8/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
2 stops34h 25m
Mon 9/288:20 pm -
1 stop25h 35m
Deal found 8/15![Lufthansa logo]()
$959
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 August 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 August 16, 2026.
This Turkish Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 10/67:15 pm -
1 stop15h 05m
Wed 11/49:45 pm -
1 stop30h 25m
Deal found 8/15![Turkish Airlines logo]()
$740
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Mon 2/18:00 am -
2 stops19h 15m
Thu 2/46:25 am -
1 stop15h 35m
Deal found 8/15![United Airlines logo]()
$752
This oojo deal was found by Cheapflights users on 8/15. 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.
Fri 10/96:50 pm -
1 stop13h 50m
Tue 10/206:10 am -
2 stops18h 12m
Deal found 8/15![Lufthansa logo]()
$842
This United deal was found by Cheapflights users on 8/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:52 pm -
2 stops34h 23m
Mon 9/2112:10 pm -
1 stop33h 45m
Deal found 8/15![Multiple Airlines logo]()
$957
This KAYAK deal was found by Cheapflights users on 8/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 am -
2 stops19h 20m
Sat 9/1911:20 am -
2 stops42h 58m
Deal found 8/14![Austrian Airlines logo]()
$1,525
This Turkish Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 9/297:15 pm -
1 stop33h 45m
Tue 10/69:35 am -
1 stop17h 45m
Deal found 8/15![Turkish Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Sun 12/1312:15 pm -
2 stops24h 40m
Wed 1/62:10 pm -
3 stops32h 35m
Deal found 8/11![United Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 12/167:45 am -
2 stops19h 40m
Wed 1/136:25 am -
3 stops26h 56m
Deal found 8/15![United Airlines logo]()
$794
This Turkish Airlines deal was found by Cheapflights users on 8/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:05 pm -
1 stop15h 50m
Sun 11/159:45 pm -
1 stop29h 25m
Deal found 8/13![Turkish Airlines logo]()
$800
This KAYAK deal was found by Cheapflights users on 8/12. 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.
Wed 9/166:50 pm -
2 stops34h 25m
Mon 9/288:20 pm -
1 stop25h 35m
Deal found 8/12![Lufthansa logo]()
$965
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:10 am -
2 stops21h 05m
Sun 9/279:50 am -
2 stops60h 05m
Deal found 8/15![Multiple Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/89:00 am -
2 stops23h 40m
Tue 9/156:10 am -
2 stops37h 26m
Deal found 8/11![United Airlines logo]()
$839
This Turkish Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 10/167:15 pm -
1 stop27h 30m
Tue 10/203:50 pm -
1 stop35h 30m
Deal found 8/11![Turkish Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/66:50 pm -
1 stop18h 25m
Wed 10/146:20 am -
1 stop16h 00m
Deal found 8/12![United Airlines logo]()
$842
This KAYAK deal was found by Cheapflights users on 8/11. 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.
Wed 9/166:50 pm -
2 stops34h 25m
Sun 9/279:40 am -
1 stop36h 15m
Deal found 8/11![Lufthansa logo]()
$1,061
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Mon 10/123:40 pm -
2 stops16h 40m
Tue 10/209:05 pm -
3 stops30h 50m
Deal found 8/13![Multiple Airlines logo]()
$1,305
This Justfly.com deal was found by Cheapflights users on 8/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/221:30 pm -
2 stops40h 20m
Tue 1/54:30 pm -
2 stops52h 55m
Deal found 8/12![Multiple Airlines logo]()
$1,588
Last-minute flights from Seattle to BulgariaDiscover last-minute flight deals from Seattle to Bulgaria. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bulgaria. Data last updated August 16, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:35 pm -
1 stop34h 10m
Wed 10/79:10 pm -
1 stop30h 10m
Deal found 8/14![Turkish Airlines logo]()
$740
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/87:00 am -
2 stops25h 40m
Tue 9/156:10 am -
1 stop15h 45m
Deal found 8/11![United Airlines logo]()
$829
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:15 pm -
1 stop30h 30m
Wed 10/79:10 pm -
1 stop30h 10m
Deal found 8/14![Turkish Airlines logo]()
$820
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am -
3 stops33h 00m
Tue 9/226:45 pm -
3 stops27h 10m
Deal found 8/15![Multiple Airlines logo]()
$763
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:35 pm -
1 stop21h 45m
Wed 10/73:50 pm -
1 stop35h 30m
Deal found 8/14![Turkish Airlines logo]()
$835
This United deal was found by Cheapflights users on 8/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:52 pm -
2 stops34h 23m
Mon 9/2112:15 pm -
2 stops33h 40m
Deal found 8/15![Multiple Airlines logo]()
$921
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:15 pm -
1 stop27h 30m
Mon 10/53:50 pm -
1 stop35h 30m
Deal found 8/14![Turkish Airlines logo]()
$775
This Turkish Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 9/297:15 pm -
1 stop33h 45m
Tue 10/69:35 am -
1 stop17h 45m
Deal found 8/15![Turkish Airlines logo]()
$765
This oojo deal was found by Cheapflights users on 8/15. 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.
Tue 9/296:50 pm -
1 stop13h 50m
Tue 10/66:10 am -
2 stops22h 22m
Deal found 8/15![Lufthansa logo]()
$813
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:50 pm -
1 stop13h 50m
Tue 10/136:10 am -
2 stops18h 12m
Deal found 8/12![Lufthansa logo]()
$814
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:00 am -
2 stops18h 10m
Tue 10/66:10 am -
2 stops22h 22m
Deal found 8/15![Multiple Airlines logo]()
$828
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Tue 9/296:50 pm -
1 stop13h 50m
Wed 10/1411:05 am -
2 stops17h 27m
Deal found 8/12![Multiple Airlines logo]()
$836
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 August 16, 2026.
Search for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Mon 10/57:00 pm -
3 stops34h 45m
Deal found 8/13![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Sun 10/47:00 pm -
2 stops17h 00m
Deal found 8/13![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 pm -
3 stops31h 25m
Deal found 8/15![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Sat 8/2911:25 pm -
3 stops30h 35m
Deal found 8/13![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 pm -
3 stops29h 35m
Deal found 8/11![Multiple Airlines logo]()
$329
This Iberia deal was found by Cheapflights users on 8/11. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:34 pm -
2 stops34h 36m
Deal found 8/11![Multiple Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 11/97:35 pm -
3 stops36h 45m
Deal found 8/11![United Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/17:00 pm -
3 stops44h 15m
Deal found 8/13![Multiple Airlines logo]()
$401
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 August 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $724 (Expedia) |
One-way from | $270 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $861 |
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 August 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 Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 10/6
7:15 pm-8:20 pm
1 stop15h 05m
Sofia
Wed 11/4
9:45 pm-6:10 pm
1 stop30h 25m
$740
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Mon 2/1
8:00 am-1:15 pm
2 stops19h 15m
Sofia
Thu 2/4
6:25 am-12:00 pm
1 stop15h 35m
$752
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 9/29
7:15 pm-3:00 pm
1 stop33h 45m
Sofia
Tue 10/6
9:35 am-5:20 pm
1 stop17h 45m
$765
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 12/13
12:15 pm-10:55 pm
2 stops24h 40m
Sofia
Wed 1/6
2:10 pm-12:45 pm
3 stops32h 35m
$777
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 12/16
7:45 am-1:25 pm
2 stops19h 40m
Sofia
Wed 1/13
6:25 am-11:21 pm
3 stops26h 56m
$794
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Mon 11/9
7:05 pm-8:55 pm
1 stop15h 50m
Sofia
Sun 11/15
9:45 pm-5:10 pm
1 stop29h 25m
$800
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 9/8
9:00 am-6:40 pm
2 stops23h 40m
Sofia
Tue 9/15
6:10 am-9:36 am
2 stops37h 26m
$839
Quickest round-trip
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Fri 10/9
6:50 pm-6:40 pm
1 stop13h 50m
Sofia
Tue 10/20
6:10 am-2:22 pm
2 stops18h 12m
$842
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 10/6
6:50 pm-11:15 pm
1 stop18h 25m
Sofia
Wed 10/14
6:20 am-12:20 pm
1 stop16h 00m
$842
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Fri 10/16
7:15 pm-8:45 am
1 stop27h 30m
Sofia
Tue 10/20
3:50 pm-5:20 pm
1 stop35h 30m
$860
Showing 1-10 of 27 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
What is the cheapest month to book a flight from Seattle to Bulgaria?
Currently, October is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $587). Flying from Seattle to Bulgaria in June is currently the most expensive (average of $1,147). 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 far ahead should I book a flight from Seattle to Bulgaria?
Booking 15 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.
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 August 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.
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Overall
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
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
See prices for flight routes from nearby airports that may be better suited for you.
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 August 16, 2026.
Popular flight searches
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Seattle to Bulgaria flights
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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 August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$908 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$540 | Average$923 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$545 | Average$957 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$570 | Average$853 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$884 | Average$897 | FlexibilityNo cancel fee | On-time78% |