$203+ Cheap flights from Seattle (SEA) to Oslo
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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Oslo 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 OsloExplore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
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.
Thu 12/102:35 pm -
1 stop12h 00m
Fri 12/181:10 pm -
1 stop12h 50m
Deal found 9/19![Icelandair logo]()
$466
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 11/82:35 pm -
1 stop12h 00m
Mon 11/231:10 pm -
1 stop12h 50m
Deal found 9/19![Icelandair logo]()
$468
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.
Tue 11/102:35 pm -
1 stop12h 00m
Thu 11/199:30 pm -
1 stop28h 30m
Deal found 9/19![Icelandair logo]()
$469
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.
Wed 11/182:35 pm -
1 stop21h 00m
Tue 11/241:10 pm -
1 stop12h 50m
Deal found 9/19![Icelandair logo]()
$478
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.
Sun 11/810:10 am -
2 stops22h 30m
Mon 11/236:15 am -
1 stop14h 45m
Deal found 9/19![Multiple Airlines logo]()
$480
This oojo deal was found by Cheapflights users on 9/20. 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 10/283:35 pm -
1 stop21h 00m
Sun 11/19:30 pm -
1 stop28h 30m
Deal found 9/20![Icelandair logo]()
$482
This Mytrip deal was found by Cheapflights users on 9/20. 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 10/186:50 pm -
1 stop18h 15m
Thu 10/227:10 am -
2 stops24h 37m
Deal found 9/20![Multiple Airlines logo]()
$485
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.
Wed 11/112:50 pm -
1 stop17h 50m
Wed 11/181:00 pm -
2 stops43h 18m
Deal found 9/19![Multiple Airlines logo]()
$486
This Mytrip deal was found by Cheapflights users on 9/21. 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 11/57:45 am -
2 stops24h 55m
Thu 11/126:15 am -
1 stop14h 45m
Deal found 9/21![Multiple Airlines logo]()
$489
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:39 am -
2 stops18h 26m
Thu 11/196:00 am -
2 stops26h 00m
Deal found 9/19![Scandinavian Airlines logo]()
$664
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:20 am -
2 stops21h 45m
Tue 12/86:00 am -
2 stops25h 53m
Deal found 9/17![Scandinavian Airlines logo]()
$665
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop23h 30m
Mon 11/26:00 am -
2 stops26h 17m
Deal found 9/20![Scandinavian Airlines logo]()
$675
Best flights from Seattle to OsloDiscover carefully curated flight deals from Seattle to Oslo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from Seattle to Oslo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
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.
Tue 11/1012:20 pm -
2 stops20h 20m
Thu 11/196:15 am -
1 stop14h 45m
Deal found 9/18![United Airlines logo]()
$503
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:39 am -
2 stops18h 26m
Tue 11/106:00 am -
2 stops26h 00m
Deal found 9/20![Scandinavian Airlines logo]()
$664
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 10/147:00 am -
2 stops25h 15m
Sun 10/187:10 am -
1 stop18h 49m
Deal found 9/17![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/147:00 am -
2 stops25h 15m
Mon 10/196:45 am -
1 stop14h 35m
Deal found 9/21![United Airlines logo]()
$517
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.
Sat 10/1710:48 pm -
2 stops33h 27m
Sat 10/247:15 am -
2 stops35h 32m
Deal found 9/19![United Airlines logo]()
$525
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop23h 30m
Wed 10/282:35 pm -
2 stops40h 14m
Deal found 9/20![Scandinavian Airlines logo]()
$675
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.
Mon 2/11:50 pm -
1 stop16h 55m
Thu 2/46:15 am -
1 stop14h 45m
Deal found 9/17![United Airlines logo]()
$527
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop23h 30m
Mon 11/26:00 am -
2 stops26h 17m
Deal found 9/20![Scandinavian Airlines logo]()
$675
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop23h 30m
Sat 10/316:00 am -
2 stops25h 04m
Deal found 9/20![Scandinavian Airlines logo]()
$675
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/21. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 am -
2 stops20h 40m
Thu 11/129:05 pm -
3 stops33h 34m
Deal found 9/21![Multiple Airlines logo]()
$1,715
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.
Sat 3/207:45 am -
2 stops41h 00m
Mon 4/57:10 am -
1 stop18h 49m
Deal found 9/17![United Airlines logo]()
$605
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:39 am -
2 stops18h 26m
Tue 11/172:35 pm -
2 stops38h 38m
Deal found 9/19![Scandinavian Airlines logo]()
$699
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:39 am -
2 stops18h 26m
Wed 11/256:00 am -
2 stops26h 57m
Deal found 9/19![Scandinavian Airlines logo]()
$699
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/227:20 am -
2 stops21h 45m
Tue 1/262:35 pm -
2 stops40h 29m
Deal found 9/17![Scandinavian Airlines logo]()
$700
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/217:20 am -
2 stops21h 45m
Tue 1/262:35 pm -
2 stops40h 29m
Deal found 9/17![Scandinavian Airlines logo]()
$700
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop13h 35m
Sat 10/176:00 am -
2 stops25h 05m
Deal found 9/21![Scandinavian Airlines logo]()
$708
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/112:00 pm -
2 stops41h 05m
Thu 2/42:35 pm -
2 stops40h 51m
Deal found 9/20![Scandinavian Airlines logo]()
$729
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/21. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 am -
2 stops20h 40m
Thu 11/129:05 pm -
3 stops33h 34m
Deal found 9/21![Multiple Airlines logo]()
$1,735
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/20. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/202:00 pm -
3 stops34h 20m
Sun 3/286:50 pm -
2 stops35h 15m
Deal found 9/20![Multiple Airlines logo]()
$1,882
Last-minute flights from Seattle to OsloDiscover last-minute flight deals from Seattle to Oslo. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Oslo. Data last updated September 21, 2026 and is based on user searches.
This Scandinavian Airlines deal was found by Cheapflights users on 9/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop23h 30m
Mon 11/26:00 am -
2 stops26h 17m
Deal found 9/20![Scandinavian Airlines logo]()
$675
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:55 pm -
1 stop13h 35m
Sat 10/176:00 am -
2 stops25h 05m
Deal found 9/21![Scandinavian Airlines logo]()
$708
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.
Mon 10/123:40 pm -
1 stop11h 55m
Sun 10/253:30 pm -
1 stop13h 10m
Deal found 9/17![Icelandair logo]()
$493
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:50 pm -
1 stop18h 15m
Wed 11/46:15 am -
1 stop14h 45m
Deal found 9/20![United Airlines logo]()
$498
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.
Wed 10/147:00 pm -
1 stop32h 35m
Mon 10/194:30 pm -
1 stop34h 25m
Deal found 9/19![Icelandair logo]()
$496
This Gotogate deal was found by Cheapflights users on 9/20. 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 10/147:55 am -
2 stops24h 20m
Sun 10/187:10 am -
1 stop18h 49m
Deal found 9/20![Multiple Airlines logo]()
$501
This Mytrip deal was found by Cheapflights users on 9/20. 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 10/186:50 pm -
1 stop18h 15m
Thu 10/227:10 am -
2 stops24h 37m
Deal found 9/20![Multiple Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 9/20. 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 -
1 stop18h 15m
Tue 11/311:50 am -
1 stop34h 10m
Deal found 9/20![United Airlines logo]()
$500
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.
Mon 10/195:50 am -
2 stops27h 05m
Mon 10/266:15 am -
1 stop14h 45m
Deal found 9/17![Multiple Airlines logo]()
$495
This oojo deal was found by Cheapflights users on 9/20. 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 10/217:00 pm -
1 stop32h 35m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/20![Icelandair logo]()
$494
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:40 pm -
1 stop11h 55m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/16![Icelandair logo]()
$492
This oojo deal was found by Cheapflights users on 9/20. 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 10/283:35 pm -
1 stop21h 00m
Sun 11/19:30 pm -
1 stop28h 30m
Deal found 9/20![Icelandair logo]()
$482
One-way flights from Seattle to OsloSearch for one-way flight options from Seattle to Oslo. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from Seattle to Oslo. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
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 10/113:55 pm -
1 stop31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Scandinavian Airlines logo]()
$203
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:55 pm -
1 stop32h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Scandinavian Airlines logo]()
$218
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 10/113:55 pm -
3 stops42h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$258
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 10/113:55 pm -
3 stops41h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$259
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 10/197:00 pm -
3 stops43h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$283
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
1 stop12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Icelandair logo]()
$285
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.
Sat 10/313:35 pm -
3 stops59h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$289
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:35 pm -
2 stops37h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$296
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 pm -
1 stop32h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Icelandair logo]()
$296
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:35 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$301
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
2 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$302
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:35 pm -
2 stops17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$302
Find flight deals from Seattle to Oslo
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Oslo (OS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 21, 2026.
Round-trip from | $466 (oojo) |
|---|---|
One-way from | $203 (Mytrip) |
Popular in | December |
Cheapest in | January |
Average price | $594 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Oslo 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 21, 2026.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sun 10/11
3:55 pm-5:55 pm
3 stops41h 00m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$259
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Sun 10/11
3:55 pm-4:50 pm
3 stops39h 55m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$264
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Mon 10/19
7:00 pm-11:25 pm
3 stops43h 25m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$283
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sat 10/31
3:35 pm-10:55 am
3 stops59h 20m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$289
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Thu 12/10
2:35 pm-1:40 pm
2 stops38h 05m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$297
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sun 12/6
2:35 pm-9:10 pm
2 stops21h 35m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$302
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Sat 10/31
3:35 pm-7:40 am
3 stops32h 05m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$307
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Mon 12/7
2:35 pm-7:10 pm
2 stops19h 35m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$316
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Sat 3/20
2:40 pm-7:40 pm
1 stop21h 00m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$321
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Tue 12/8
7:20 am-1:50 pm
2 stops21h 30m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$322
Showing 1-10 of 35 resultsSorted by cheapest first
Best time to book a flight from Seattle to Oslo
Have a flexible travel schedule? Discover the best time to fly to Oslo from Seattle with our price prediction graph.
SEA-OS1
SEA-OSL
SEA-TRF
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 Oslo
SEA-OS1
SEA-OSL
SEA-TRF
What is the cheapest month to book a flight from Seattle to Oslo?
Currently, January is the cheapest month in which you can book a flight from Seattle to Oslo (average of $421). Flying from Seattle to Oslo in December is currently the most expensive (average of $776). 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 much does it cost to fly round-trip from Seattle to Oslo?
Airfare is below average for this route at the moment.
Seattle to Oslo flights typically cost between $474 and $690 in December.The cheapest round-trip price found within the last 5 days was $466 on Icelandair (Dec 10-Dec 18).
How far ahead should I book a flight from Seattle to Oslo?
The price you pay for your flight from Seattle to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Oslo
Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated September 21, 2026.
See what other customers who have flown with KLM,Delta, andScandinavian Airlines from Seattle to Oslo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Boarding
7.8
Food
7.3
Comfort
7.7
Crew
8.4
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 Oslo. 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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Complete your trip
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Search flights from Seattle to Oslo by cabin class
Find flights from Seattle to Oslo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Oslo flights
Browse other Seattle and Oslo flight options. Last updated on September 21, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Seattle to Oslo
Discover the top 7 airlines that operate flights from Seattle to Oslo. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$537 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$393 | Average$580 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$426 | Average$659 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$481 | Average$686 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$491 | Average$545 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$493 | Average$640 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$522 | Average$648 | FlexibilityNo cancel fee | On-time75% |