$336+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Sep 9 — Sep 161
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
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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 10, 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 10, 2026.
This Turkish Airlines deal was found by Cheapflights users on 8/7. 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.
Thu 10/87:15 pm -
1 stop33h 45m
Tue 10/203:50 pm -
1 stop35h 30m
Deal found 8/7![Turkish Airlines logo]()
$740
This Expedia deal was found by Cheapflights users on 8/9. 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.
Sat 11/213:15 pm -
2 stops36h 10m
Fri 11/276:00 am -
1 stop17h 00m
Deal found 8/9![Multiple Airlines logo]()
$755
This FlightHub deal was found by Cheapflights users on 8/9. 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.
Sat 11/213:15 pm -
2 stops41h 05m
Fri 11/276:25 am -
2 stops21h 57m
Deal found 8/9![Air Canada logo]()
$764
This Turkish Airlines deal was found by Cheapflights users on 8/8. 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 10/147:15 pm -
1 stop15h 05m
Fri 10/239:35 am -
1 stop17h 45m
Deal found 8/8![Turkish Airlines logo]()
$765
This Turkish Airlines deal was found by Cheapflights users on 8/8. 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.
Thu 10/87:15 pm -
1 stop33h 45m
Mon 10/193:50 pm -
1 stop35h 30m
Deal found 8/8![Turkish Airlines logo]()
$780
This FlightHub deal was found by Cheapflights users on 8/9. 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 9/177:15 pm -
1 stop33h 45m
Wed 10/79:10 pm -
1 stop30h 10m
Deal found 8/9![Turkish Airlines logo]()
$790
This Turkish Airlines deal was found by Cheapflights users on 8/8. 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 10/117:15 pm -
1 stop33h 45m
Wed 10/213:50 pm -
1 stop35h 30m
Deal found 8/8![Turkish Airlines logo]()
$795
This Expedia deal was found by Cheapflights users on 8/8. 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.
Wed 10/145:40 am -
2 stops27h 00m
Fri 10/236:20 am -
1 stop16h 00m
Deal found 8/8![Multiple Airlines logo]()
$800
This oojo deal was found by Cheapflights users on 8/9. 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 9/136:50 pm -
1 stop13h 50m
Mon 9/217:25 pm -
1 stop31h 34m
Deal found 8/9![Lufthansa logo]()
$808
This FlightHub deal was found by Cheapflights users on 8/9. 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 9/167:15 pm -
1 stop33h 45m
Wed 10/73:50 pm -
1 stop35h 30m
Deal found 8/9![Turkish Airlines logo]()
$813
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
1 stop13h 50m
Wed 10/76:20 am -
1 stop16h 00m
Deal found 8/9![Lufthansa logo]()
$814
This KAYAK deal was found by Cheapflights users on 8/6. 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 9/284:00 pm -
2 stops29h 55m
Deal found 8/6![Lufthansa logo]()
$906
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 10, 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 10, 2026.
This Booking.com deal was found by Cheapflights users on 8/6. 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.
Thu 10/87:15 pm -
1 stop33h 45m
Tue 10/203:50 pm -
1 stop35h 30m
Deal found 8/6![Turkish Airlines logo]()
$740
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/66:50 pm -
1 stop18h 25m
Tue 9/226:10 am -
1 stop15h 45m
Deal found 8/9![United Airlines logo]()
$825
This KAYAK deal was found by Cheapflights users on 8/6. 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 9/284:00 pm -
2 stops29h 55m
Deal found 8/6![Lufthansa logo]()
$906
This Justfly.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 -
1 stop17h 09m
Deal found 8/10![Multiple Airlines logo]()
$920
This KAYAK deal was found by Cheapflights users on 8/5. 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 9/58:10 am -
2 stops18h 10m
Sat 9/1911:20 am -
2 stops42h 58m
Deal found 8/5![Austrian Airlines logo]()
$1,485
This Turkish Airlines deal was found by Cheapflights users on 8/9. 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 11/217:05 pm -
1 stop27h 45m
Fri 11/2711:55 am -
1 stop15h 15m
Deal found 8/9![Turkish Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/296:10 am -
1 stop15h 45m
Deal found 8/9![United Airlines logo]()
$829
This Turkish Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 11/58:05 pm -
1 stop33h 05m
Sun 11/1511:55 am -
1 stop15h 15m
Deal found 8/6![Turkish Airlines logo]()
$800
This Ovago deal was found by Cheapflights users on 8/9. 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 9/232:10 pm -
2 stops15h 05m
Wed 9/3012:35 pm -
1 stop14h 24m
Deal found 8/9![Multiple Airlines logo]()
$928
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/2611:59 pm -
2 stops37h 16m
Tue 10/136:10 am -
1 stop16h 10m
Deal found 8/7![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/811:59 pm -
2 stops37h 16m
Mon 9/212:20 pm -
1 stop31h 35m
Deal found 8/9![United Airlines logo]()
$849
This KAYAK deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
2 stops34h 25m
Sun 9/279:40 am -
1 stop36h 15m
Deal found 8/10![Lufthansa logo]()
$1,061
This Turkish Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:15 pm -
1 stop27h 55m
Thu 10/110:15 pm -
1 stop29h 05m
Deal found 8/10![Turkish Airlines logo]()
$907
Last-minute flights from Seattle to BulgariaDiscover last-minute flight deals from Seattle to Bulgaria. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bulgaria. Data last updated August 10, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/6. 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 -
1 stop18h 25m
Tue 9/226:10 am -
1 stop15h 45m
Deal found 8/6![Lufthansa logo]()
$817
This FlightHub deal was found by Cheapflights users on 8/6. 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 9/66:50 pm -
1 stop18h 25m
Tue 9/221:05 pm -
2 stops39h 27m
Deal found 8/6![Multiple Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/66:50 pm -
1 stop18h 25m
Tue 9/226:10 am -
1 stop15h 45m
Deal found 8/9![United Airlines logo]()
$825
This oojo deal was found by Cheapflights users on 8/9. 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 9/136:50 pm -
1 stop13h 50m
Mon 9/217:25 pm -
1 stop31h 34m
Deal found 8/9![Lufthansa logo]()
$808
This Turkish Airlines deal was found by Cheapflights users on 8/9. 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 9/137:15 pm -
1 stop15h 05m
Fri 10/99:35 am -
1 stop17h 45m
Deal found 8/9![Turkish Airlines logo]()
$820
This FlightHub deal was found by Cheapflights users on 8/9. 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 9/167:15 pm -
1 stop33h 45m
Wed 10/73:50 pm -
1 stop35h 30m
Deal found 8/9![Turkish Airlines logo]()
$813
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
1 stop13h 50m
Wed 10/76:20 am -
1 stop16h 00m
Deal found 8/9![Lufthansa logo]()
$814
This oojo deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 pm -
1 stop13h 50m
Wed 9/236:20 am -
1 stop15h 35m
Deal found 8/6![Lufthansa logo]()
$815
This Gotogate deal was found by Cheapflights users on 8/6. 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 9/166:50 pm -
1 stop13h 50m
Wed 9/236:20 am -
2 stops26h 27m
Deal found 8/6![Multiple Airlines logo]()
$821
This FlightHub deal was found by Cheapflights users on 8/9. 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 9/177:15 pm -
1 stop33h 45m
Wed 10/79:10 pm -
1 stop30h 10m
Deal found 8/9![Turkish Airlines logo]()
$790
This Turkish Airlines deal was found by Cheapflights users on 8/7. 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 -
1 stop15h 05m
Tue 10/69:35 am -
1 stop17h 45m
Deal found 8/7![Turkish Airlines logo]()
$740
This oojo deal was found by Cheapflights users on 8/7. 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 9/206:50 pm -
1 stop13h 50m
Tue 10/66:10 am -
2 stops24h 27m
Deal found 8/7![Lufthansa logo]()
$827
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 10, 2026.
Search for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 11/52:35 pm -
2 stops17h 25m
Deal found 8/6![Multiple Airlines logo]()
$336
This oojo deal was found by Cheapflights users on 8/6. 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 11/42:50 pm -
1 stop17h 30m
Deal found 8/6![Lufthansa logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:00 pm -
3 stops40h 55m
Deal found 8/9![Multiple Airlines logo]()
$344
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Wed 11/410:10 am -
2 stops17h 15m
Deal found 8/6![Multiple Airlines logo]()
$347
This oojo deal was found by Cheapflights users on 8/6. 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.
Thu 11/56:45 pm -
1 stop14h 35m
Deal found 8/6![British Airways logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 11/48:09 am -
2 stops23h 51m
Deal found 8/7![Austrian Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 11/512:45 pm -
3 stops43h 35m
Deal found 8/6![United Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/163:40 pm -
3 stops44h 45m
Deal found 8/6![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/156:50 pm -
3 stops39h 40m
Deal found 8/6![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/176:50 pm -
3 stops39h 40m
Deal found 8/6![Multiple Airlines logo]()
$450
This FlightHub deal was found by Cheapflights users on 8/6. 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 9/167:10 pm -
1 stop17h 25m
Deal found 8/6![Aer Lingus logo]()
$532
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $740 (Turkish Airlines) |
One-way from | $336 (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 10, 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
Thu 10/8
7:15 pm-3:00 pm
1 stop33h 45m
Sofia
Tue 10/20
3:50 pm-5:20 pm
1 stop35h 30m
$740
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sat 11/21
7:05 pm-8:50 am
1 stop27h 45m
Sofia
Fri 11/27
11:55 am-5:10 pm
1 stop15h 15m
$780
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Thu 11/5
8:05 pm-3:10 pm
1 stop33h 05m
Sofia
Sun 11/15
11:55 am-5:10 pm
1 stop15h 15m
$800
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 9/6
6:50 pm-11:15 pm
1 stop18h 25m
Sofia
Tue 9/22
6:10 am-11:55 am
1 stop15h 45m
$825
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 9/29
6:10 am-11:55 am
1 stop15h 45m
$829
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sat 9/26
11:59 pm-11:15 pm
2 stops37h 16m
Sofia
Tue 10/13
6:10 am-12:20 pm
1 stop16h 10m
$846
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 9/8
11:59 pm-11:15 pm
2 stops37h 16m
Sofia
Mon 9/21
2:20 pm-11:55 am
1 stop31h 35m
$849
SeattleVarna
SEA Seattle/Tacoma Intl - VAR Varna
SEAVAR
Seattle/Tacoma Intl
Wed 9/16
6:50 pm-3:15 pm
2 stops34h 25m
Varna
Mon 9/28
4:00 pm-11:55 am
2 stops29h 55m
$906
SeattleVarna
SEA Seattle/Tacoma Intl - VAR Varna
SEAVAR
Seattle/Tacoma Intl
Thu 9/24
7:15 pm-9:10 am
1 stop27h 55m
Varna
Thu 10/1
10:15 pm-5:20 pm
1 stop29h 05m
$907
SeattleBurgas
SEA Seattle/Tacoma Intl - BOJ Bourgas
SEABOJ
Seattle/Tacoma Intl
Wed 9/16
8:10 am-3:15 pm
2 stops21h 05m
Bourgas
Sun 9/27
9:50 am-4:59 pm
1 stop17h 09m
$920
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, 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 16 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 10, 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
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Crew
8.4
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
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 August 10, 2026.
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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 10, 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% |