$309+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SOF
Dec 12 — Dec 191
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bulgaria with Cheapflights
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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 November 12, 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 November 12, 2026.
This Turkish Airlines deal was found by Cheapflights users on 11/10. 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.
Sun 11/297:05 pm -
1 stop15h 50m
Tue 12/154:00 pm -
1 stop35h 10m
Deal found 11/10![Turkish Airlines logo]()
$788
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2910:50 pm -
2 stops28h 25m
Thu 4/226:20 am -
1 stop16h 00m
Deal found 11/8![United Airlines logo]()
$812
This Turkish Airlines deal was found by Cheapflights users on 11/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:05 pm -
1 stop27h 45m
Tue 12/89:40 am -
1 stop17h 30m
Deal found 11/12![Turkish Airlines logo]()
$849
This Expedia deal was found by Cheapflights users on 11/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:09 am -
2 stops23h 51m
Thu 1/146:00 am -
2 stops37h 32m
Deal found 11/7![Multiple Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Fri 1/87:55 am -
2 stops23h 07m
Deal found 11/8![United Airlines logo]()
$883
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Sat 1/97:55 am -
2 stops38h 05m
Deal found 11/8![United Airlines logo]()
$889
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Mon 12/148:09 am -
2 stops17h 41m
Thu 1/142:00 pm -
3 stops57h 13m
Deal found 11/7![United Airlines logo]()
$895
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Thu 1/76:00 am -
2 stops49h 02m
Deal found 11/8![United Airlines logo]()
$917
This Turkish Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 11/137:05 pm -
1 stop15h 50m
Thu 11/199:45 pm -
1 stop29h 25m
Deal found 11/9![Turkish Airlines logo]()
$928
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/84:00 pm -
2 stops36h 46m
Deal found 11/11![Austrian Airlines logo]()
$1,052
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/85:40 pm -
1 stop28h 20m
Deal found 11/11![Multiple Airlines logo]()
$1,065
This Expedia deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:09 am -
2 stops21h 06m
Thu 1/284:00 pm -
2 stops39h 02m
Deal found 11/10![Austrian Airlines logo]()
$1,079
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 November 12, 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 November 12, 2026.
This Expedia deal was found by Cheapflights users on 11/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/32:50 pm -
1 stop22h 05m
Wed 3/176:25 am -
1 stop15h 35m
Deal found 11/12![Lufthansa logo]()
$700
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Sun 2/77:00 am -
2 stops20h 15m
Thu 2/116:25 am -
1 stop15h 35m
Deal found 11/7![United Airlines logo]()
$731
This British Airways deal was found by Cheapflights users on 11/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/21:35 pm -
1 stop19h 45m
Wed 5/129:25 pm -
1 stop31h 00m
Deal found 11/7![British Airways logo]()
$739
This Turkish Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:05 pm -
1 stop15h 50m
Tue 12/154:00 pm -
1 stop35h 10m
Deal found 11/11![Turkish Airlines logo]()
$788
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/84:00 pm -
2 stops36h 46m
Deal found 11/11![Austrian Airlines logo]()
$1,052
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/85:40 pm -
1 stop28h 20m
Deal found 11/11![Multiple Airlines logo]()
$1,065
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Tue 4/275:07 am -
2 stops27h 38m
Thu 5/61:05 pm -
1 stop14h 15m
Deal found 11/7![United Airlines logo]()
$733
This United Airlines deal was found by Cheapflights users on 11/11. 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 4/277:00 am -
2 stops19h 20m
Thu 4/296:00 am -
1 stop21h 20m
Deal found 11/11![United Airlines logo]()
$737
This Turkish Airlines deal was found by Cheapflights users on 11/11. 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 3/268:05 pm -
1 stop15h 55m
Wed 3/3110:10 pm -
1 stop29h 25m
Deal found 11/11![Turkish Airlines logo]()
$889
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Tue 4/278:00 am -
2 stops18h 20m
Mon 5/101:55 pm -
1 stop32h 25m
Deal found 11/7![United Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Fri 4/306:35 pm -
1 stop18h 30m
Thu 5/61:05 pm -
1 stop14h 15m
Deal found 11/7![United Airlines logo]()
$778
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Thu 4/296:50 pm -
1 stop18h 15m
Thu 5/61:05 pm -
1 stop14h 15m
Deal found 11/7![United Airlines logo]()
$778
This Turkish Airlines deal was found by Cheapflights users on 11/7. 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 2/77:05 pm -
1 stop15h 55m
Thu 2/119:50 pm -
1 stop29h 20m
Deal found 11/7![Turkish Airlines logo]()
$1,142
This Turkish Airlines deal was found by Cheapflights users on 11/11. 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.
Tue 3/307:20 pm -
1 stop27h 25m
Thu 4/110:10 pm -
1 stop29h 25m
Deal found 11/11![Turkish Airlines logo]()
$1,142
This Justfly.com deal was found by Cheapflights users on 11/10. 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.
Fri 12/117:05 pm -
1 stop27h 45m
Thu 1/289:50 pm -
1 stop29h 20m
Deal found 11/10![Turkish Airlines logo]()
$1,338
Last-minute flights from Seattle to BulgariaDiscover last-minute flight deals from Seattle to Bulgaria. Data last updated November 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bulgaria. Data last updated November 12, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 11/137:05 pm -
1 stop15h 50m
Thu 11/199:45 pm -
1 stop29h 25m
Deal found 11/9![Turkish Airlines logo]()
$928
This Turkish Airlines deal was found by Cheapflights users on 11/10. 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.
Sun 11/297:05 pm -
1 stop15h 50m
Tue 12/154:00 pm -
1 stop35h 10m
Deal found 11/10![Turkish Airlines logo]()
$788
This Turkish Airlines deal was found by Cheapflights users on 11/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:05 pm -
1 stop27h 45m
Tue 12/89:40 am -
1 stop17h 30m
Deal found 11/12![Turkish Airlines logo]()
$849
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/84:00 pm -
2 stops36h 46m
Deal found 11/11![Austrian Airlines logo]()
$1,052
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:09 am -
2 stops21h 06m
Tue 12/85:40 pm -
1 stop28h 20m
Deal found 11/11![Multiple Airlines logo]()
$1,065
This Expedia deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:09 am -
2 stops21h 06m
Thu 1/284:00 pm -
2 stops39h 02m
Deal found 11/10![Austrian Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Fri 1/87:55 am -
2 stops23h 07m
Deal found 11/8![United Airlines logo]()
$883
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Sat 1/97:55 am -
2 stops38h 05m
Deal found 11/8![United Airlines logo]()
$889
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
2 stops20h 15m
Thu 1/76:00 am -
2 stops49h 02m
Deal found 11/8![United Airlines logo]()
$917
This Expedia deal was found by Cheapflights users on 11/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:09 am -
2 stops23h 51m
Thu 1/146:00 am -
2 stops37h 32m
Deal found 11/7![Multiple Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Mon 12/148:09 am -
2 stops17h 41m
Thu 1/142:00 pm -
3 stops57h 13m
Deal found 11/7![United Airlines logo]()
$895
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2910:50 pm -
2 stops28h 25m
Thu 4/226:20 am -
1 stop16h 00m
Deal found 11/8![United Airlines logo]()
$812
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 November 12, 2026.
Search for one-way flight options from Seattle to Bulgaria. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/37:00 pm -
2 stops44h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/273:40 pm -
2 stops23h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/287:00 pm -
3 stops35h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$332
This British Airways deal was found by Cheapflights users on 11/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/21:35 pm -
1 stop19h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![British Airways logo]()
$335
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/36:50 pm -
1 stop18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![United Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/27:00 pm -
2 stops30h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$344
This SWISS deal was found by Cheapflights users on 11/12. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/281:12 pm -
2 stops39h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![SWISS logo]()
$345
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/286:57 am -
2 stops30h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![United Airlines logo]()
$346
This KAYAK deal was found by Cheapflights users on 11/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/286:50 pm -
1 stop18h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Lufthansa logo]()
$347
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Sun 5/27:32 pm -
3 stops41h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![United Airlines logo]()
$348
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 November 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $705 (Expedia) |
One-way from | $309 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $999 |
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 November 12, 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 5/2
1:35 pm-7:20 pm
1 stop19h 45m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$335
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 4/27
1:35 pm-8:30 pm
1 stop20h 55m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$335
Quickest round-trip
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Mon 5/3
6:50 pm-11:05 pm
1 stop18h 15m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$342
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 4/28
1:12 pm-3:05 pm
2 stops39h 53m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$345
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sun 5/2
7:32 pm-11:05 pm
3 stops41h 33m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$348
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 4/28
8:20 pm-1:25 pm
1 stop31h 05m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$350
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Tue 4/27
5:07 am-11:00 pm
3 stops31h 53m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$358
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Sat 5/1
1:12 pm-11:05 pm
3 stops47h 53m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$363
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Fri 4/30
6:35 pm-11:05 pm
1 stop18h 30m
Sofia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$392
SeattleSofia
SEA Seattle/Tacoma Intl - SOF Sofia
SEASOF
Seattle/Tacoma Intl
Wed 3/3
2:50 pm-10:55 pm
1 stop22h 05m
Sofia
Wed 3/17
6:25 am-1:00 pm
1 stop15h 35m
$700
Showing 1-10 of 24 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
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
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 $1,170). 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 17 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 November 12, 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.
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Overall
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Boarding
7.8
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 November 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$538 | Average$909 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$559 | Average$927 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$596 | Average$889 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$620 | Average$830 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$884 | Average$897 | FlexibilityNo cancel fee | On-time78% |