$333+ Cheap flights from Seattle (SEA) to Bulgaria
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Oct 19 — Oct 261
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 September 19, 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 September 19, 2026.
This British Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:45 pm -
1 stop15h 25m
Mon 11/235:15 pm -
1 stop33h 35m
Deal found 9/19![British Airways logo]()
$599
This Gotogate deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:50 am -
2 stops21h 50m
Tue 11/37:05 pm -
1 stop27h 55m
Deal found 9/19![Multiple Airlines logo]()
$624
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:50 pm -
1 stop22h 05m
Tue 11/242:00 pm -
1 stop33h 00m
Deal found 9/19![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:35 pm -
2 stops21h 20m
Tue 11/246:00 am -
2 stops28h 59m
Deal found 9/19![United Airlines logo]()
$644
This Gotogate deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:50 pm -
1 stop13h 50m
Tue 11/37:05 pm -
1 stop27h 55m
Deal found 9/19![Lufthansa logo]()
$646
This British Airways deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:45 pm -
1 stop14h 35m
Wed 11/189:05 pm -
1 stop24h 20m
Deal found 9/19![British Airways logo]()
$649
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:14 am -
2 stops24h 06m
Sun 11/227:45 pm -
1 stop31h 05m
Deal found 9/19![British Airways logo]()
$653
This KAYAK deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am -
2 stops25h 20m
Mon 11/237:05 pm -
2 stops38h 02m
Deal found 9/19![Lufthansa logo]()
$659
This United deal was found by Cheapflights users on 9/15. 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.
Sun 12/135:35 pm -
2 stops19h 20m
Thu 1/77:05 pm -
1 stop27h 55m
Deal found 9/15![Multiple Airlines logo]()
$662
This oojo deal was found by Cheapflights users on 9/17. 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 11/12:50 pm -
1 stop17h 30m
Sun 11/86:00 am -
1 stop17h 00m
Deal found 9/17![Lufthansa logo]()
$665
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:50 pm -
2 stops18h 10m
Tue 11/36:00 am -
2 stops27h 07m
Deal found 9/19![United Airlines logo]()
$668
This oojo deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:50 pm -
1 stop22h 05m
Sat 12/56:25 am -
1 stop15h 35m
Deal found 9/19![Lufthansa logo]()
$672
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 September 19, 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 September 19, 2026.
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/136:15 am -
3 stops30h 45m
Thu 1/77:55 am -
2 stops22h 15m
Deal found 9/15![United Airlines logo]()
$681
This United deal was found by Cheapflights users on 9/15. 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.
Sun 12/132:50 pm -
1 stop17h 30m
Sun 1/106:00 am -
1 stop17h 00m
Deal found 9/15![Multiple Airlines logo]()
$770
This FlightHub deal was found by Cheapflights users on 9/16. 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 stop16h 20m
Tue 10/279:40 am -
1 stop17h 30m
Deal found 9/16![Turkish Airlines logo]()
$834
This Expedia deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:09 am -
2 stops21h 06m
Tue 11/104:00 pm -
2 stops37h 03m
Deal found 9/19![Austrian Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:30 am -
2 stops28h 25m
Sun 11/86:00 am -
1 stop17h 00m
Deal found 9/17![United Airlines logo]()
$684
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:50 pm -
1 stop13h 35m
Tue 11/242:10 pm -
1 stop31h 50m
Deal found 9/19![United Airlines logo]()
$691
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/135:35 pm -
2 stops19h 20m
Sun 1/106:00 am -
2 stops24h 48m
Deal found 9/15![United Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:05 am -
2 stops29h 50m
Sat 11/212:00 pm -
2 stops41h 50m
Deal found 9/18![United Airlines logo]()
$704
This FlightHub deal was found by Cheapflights users on 9/16. 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 10/86:50 pm -
2 stops34h 25m
Tue 10/274:00 pm -
2 stops40h 17m
Deal found 9/16![Multiple Airlines logo]()
$994
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 1/1710:54 am -
2 stops16h 21m
Thu 1/216:25 am -
1 stop15h 35m
Deal found 9/14![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/136:15 am -
3 stops30h 45m
Wed 1/66:00 am -
2 stops25h 56m
Deal found 9/15![United Airlines logo]()
$773
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:45 am -
2 stops21h 30m
Tue 11/104:00 pm -
3 stops35h 00m
Deal found 9/19![Multiple Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/257:00 am -
2 stops30h 00m
Thu 1/76:00 am -
2 stops37h 53m
Deal found 9/16![United Airlines logo]()
$783
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/136:15 am -
3 stops30h 45m
Sat 1/96:00 am -
3 stops27h 31m
Deal found 9/15![United Airlines logo]()
$806
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:55 am -
2 stops28h 55m
Sat 10/102:15 am -
2 stops28h 49m
Deal found 9/19![Multiple Airlines logo]()
$1,366
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:15 pm -
2 stops38h 20m
Wed 10/78:30 am -
2 stops17h 10m
Deal found 9/15![Multiple Airlines logo]()
$1,401
Last-minute flights from Seattle to BulgariaDiscover last-minute flight deals from Seattle to Bulgaria. Data last updated September 19, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bulgaria. Data last updated September 19, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:40 pm -
1 stop18h 55m
Wed 10/75:55 am -
1 stop23h 05m
Deal found 9/15![Multiple Airlines logo]()
$999
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:14 pm -
2 stops43h 16m
Mon 10/128:10 pm -
1 stop25h 25m
Deal found 9/15![British Airways logo]()
$810
This FlightHub deal was found by Cheapflights users on 9/17. 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 stop15h 05m
Mon 10/199:10 pm -
1 stop30h 10m
Deal found 9/17![Turkish Airlines logo]()
$792
This FlightHub deal was found by Cheapflights users on 9/16. 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 stop16h 20m
Tue 10/279:40 am -
1 stop17h 30m
Deal found 9/16![Turkish Airlines logo]()
$834
This FlightHub deal was found by Cheapflights users on 9/16. 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 10/86:50 pm -
2 stops34h 25m
Tue 10/274:00 pm -
2 stops40h 17m
Deal found 9/16![Multiple Airlines logo]()
$994
This FlightHub deal was found by Cheapflights users on 9/18. 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 10/148:20 pm -
1 stop31h 05m
Sun 11/87:45 pm -
1 stop31h 05m
Deal found 9/18![British Airways logo]()
$734
This FlightHub deal was found by Cheapflights users on 9/18. 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 10/157:15 pm -
1 stop15h 05m
Sat 10/314:00 pm -
1 stop36h 10m
Deal found 9/18![Turkish Airlines logo]()
$811
This Gotogate deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:50 am -
2 stops21h 50m
Tue 11/37:05 pm -
1 stop27h 55m
Deal found 9/19![Multiple Airlines logo]()
$624
This Gotogate deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:50 pm -
1 stop13h 50m
Tue 11/37:05 pm -
1 stop27h 55m
Deal found 9/19![Lufthansa logo]()
$646
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:50 pm -
2 stops18h 10m
Tue 11/36:00 am -
2 stops27h 07m
Deal found 9/19![United Airlines logo]()
$668
This oojo deal was found by Cheapflights users on 9/17. 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 10/186:50 pm -
1 stop18h 25m
Sun 10/256:00 am -
1 stop17h 00m
Deal found 9/17![Lufthansa logo]()
$690
This Gotogate deal was found by Cheapflights users on 9/17. 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 10/1810:50 am -
2 stops21h 50m
Sun 10/256:00 am -
1 stop17h 00m
Deal found 9/17![Multiple Airlines logo]()
$698
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 September 19, 2026.
Search for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/12:35 pm -
3 stops58h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 -
2 stops44h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$344
This oojo deal was found by Cheapflights users on 9/17. 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 11/41:50 pm -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Lufthansa logo]()
$454
This FlightHub deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:43 am -
2 stops19h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![British Airways logo]()
$458
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Sun 11/11:50 pm -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Lufthansa logo]()
$462
This Expedia deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:50 pm -
1 stop22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Lufthansa logo]()
$466
This United Airlines deal was found by Cheapflights users on 9/17. 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 11/47:00 am -
2 stops29h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$471
This FlightHub deal was found by Cheapflights users on 9/16. 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 10/57:15 pm -
1 stop27h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Turkish Airlines logo]()
$634
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 September 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $599 (British Airways) |
One-way from | $333 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $825 |
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 7,457,451 searches. Data last updated September 19, 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
Sun 11/1
2:35 pm-11:20 am
3 stops58h 45m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$333
SeattleVarna
SEA Seattle/Tacoma Intl - VAR Varna
SEAVAR
Seattle/Tacoma Intl
Mon 10/5
7:00 pm-1:20 am
2 stops44h 20m
Varna
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$344
Quickest round-trip
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 11/4
1:50 pm-1:25 pm
1 stop13h 35m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$454
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 11/15
10:43 am-4:20 pm
2 stops19h 37m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$458
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 11/1
1:50 pm-1:25 pm
1 stop13h 35m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$462
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 11/15
2:50 pm-10:55 pm
1 stop22h 05m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$466
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 11/4
7:00 am-10:55 pm
2 stops29h 55m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 11/15
9:05 am-10:55 pm
3 stops27h 50m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
SeattleVarna
SEA Seattle/Tacoma Intl - VAR Varna
SEAVAR
Seattle/Tacoma Intl
Mon 10/5
7:15 pm-8:30 am
1 stop27h 15m
Varna
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$634
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 12/13
6:15 am-11:00 pm
3 stops30h 45m
Sofia
Thu 1/7
7:55 am-8:10 pm
2 stops22h 15m
$681
Showing 1-10 of 25 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, January is the cheapest month in which you can book a flight from Seattle to Bulgaria (average of $615). 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 24 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 September 19, 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.
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
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 September 19, 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 7,457,451 searches. Data last updated September 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$909 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$540 | Average$914 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$545 | Average$957 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$571 | Average$878 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$884 | Average$897 | FlexibilityNo cancel fee | On-time78% |