$243+ Cheap flights from Oslo to Seattle (SEA)
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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Mar 14 — Mar 211
1 adult, Economy
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Find cheap flights from Oslo to Seattle with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Oslo to SeattleExplore the most affordable flight options available from Oslo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
Explore the most affordable flight options available from Oslo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.
This Ticket deal was found by Cheapflights users on 2/9. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:30 pm
OSL
- SEA
1 stop13h 10m
Icelandair
Wed 4/153:40 pm
SEA
- OSL
1 stop11h 55m
Icelandair
Deal found 2/9![Icelandair logo]()
$389
This Sembo deal was found by Cheapflights users on 2/9. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/201:50 pm
OSL
- SEA
1 stop15h 50m
Icelandair
Fri 5/17:00 pm
SEA
- OSL
1 stop11h 25m
Icelandair
Deal found 2/9![Icelandair logo]()
$436
This Travelis deal was found by Cheapflights users on 2/11. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:50 pm
OSL
- SEA
2 stops19h 23m
Finnair
Wed 4/157:09 am
SEA
- OSL
2 stops19h 56m
Finnair
Deal found 2/11![Finnair logo]()
$474
This Icelandair deal was found by Cheapflights users on 2/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:50 pm
OSL
- SEA
1 stop13h 05m
Icelandair
Sun 4/263:40 pm
SEA
- OSL
1 stop11h 55m
Icelandair
Deal found 2/8![Icelandair logo]()
$477
This Ticket deal was found by Cheapflights users on 2/9. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:45 am
OSL
- SEA
1 stop14h 35m
Lufthansa
Wed 4/152:24 pm
SEA
- OSL
2 stops18h 31m
Lufthansa
Deal found 2/9![Lufthansa logo]()
$480
This Ticket deal was found by Cheapflights users on 2/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:15 am
OSL
- SEA
1 stop14h 55m
Lufthansa
Thu 3/510:55 am
SEA
- OSL
2 stops19h 45m
Lufthansa
Deal found 2/10![Lufthansa logo]()
$482
This Ticket deal was found by Cheapflights users on 2/11. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
TRF
- SEA
1 stop16h 45m
Scandinavian Airlines
Sat 6/203:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$539
This Scandinavian Airlines deal was found by Cheapflights users on 2/8. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
TRF
- SEA
2 stops23h 43m
Scandinavian Airlines
Sun 4/197:00 am
SEA
- TRF
2 stops22h 30m
Scandinavian Airlines
Deal found 2/8![Scandinavian Airlines logo]()
$662
This Scandinavian Airlines deal was found by Cheapflights users on 2/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
TRF
- SEA
1 stop16h 45m
Scandinavian Airlines
Fri 6/193:55 pm
SEA
- TRF
1 stop15h 40m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$693
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/183:05 pm
TRF
- SEA
1 stop31h 40m
Scandinavian Airlines
Sat 6/273:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$740
This lastminute.com deal was found by Cheapflights users on 2/11. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:10 pm
TRF
- SEA
1 stop29h 35m
Scandinavian Airlines
Sat 7/183:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$953
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:20 pm
TRF
- SEA
2 stops34h 40m
Multiple Airlines
Sun 8/303:55 pm
SEA
- TRF
1 stop13h 35m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,190
Best flights from Oslo to SeattleDiscover carefully curated flight deals from Oslo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
Discover carefully curated flight deals from Oslo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
This Travelis deal was found by Cheapflights users on 2/11. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:50 pm
OSL
- SEA
2 stops19h 23m
Finnair
Wed 4/157:09 am
SEA
- OSL
2 stops19h 56m
Finnair
Deal found 2/11![Finnair logo]()
$474
This Icelandair deal was found by Cheapflights users on 2/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:50 pm
OSL
- SEA
1 stop13h 05m
Icelandair
Sun 4/263:40 pm
SEA
- OSL
1 stop11h 55m
Icelandair
Deal found 2/8![Icelandair logo]()
$477
This Ticket deal was found by Cheapflights users on 2/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:15 am
OSL
- SEA
1 stop14h 55m
Lufthansa
Thu 3/510:55 am
SEA
- OSL
2 stops19h 45m
Lufthansa
Deal found 2/10![Lufthansa logo]()
$482
This Travelis deal was found by Cheapflights users on 2/9. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/81:00 pm
OSL
- SEA
2 stops41h 45m
Multiple Airlines
Mon 3/233:00 pm
SEA
- OSL
1 stop13h 55m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:30 am
OSL
- SEA
1 stop14h 10m
Delta
Wed 3/47:25 am
SEA
- OSL
2 stops19h 25m
Delta
Deal found 2/9![Delta logo]()
$504
This Ticket deal was found by Cheapflights users on 2/11. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
TRF
- SEA
1 stop16h 45m
Scandinavian Airlines
Sat 6/203:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$539
This Ticket deal was found by Cheapflights users on 2/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:35 am
OSL
- SEA
1 stop16h 25m
Finnair
Thu 6/181:35 pm
SEA
- OSL
2 stops18h 00m
Finnair
Deal found 2/10![Finnair logo]()
$500
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
OSL
- SEA
1 stop14h 10m
Multiple Airlines
Wed 3/42:10 pm
SEA
- OSL
1 stop24h 25m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$503
This Travelis deal was found by Cheapflights users on 2/9. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:10 am
OSL
- SEA
1 stop16h 10m
Lufthansa
Mon 3/233:00 pm
SEA
- OSL
1 stop13h 55m
Lufthansa
Deal found 2/9![Lufthansa logo]()
$503
This Scandinavian Airlines deal was found by Cheapflights users on 2/8. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
TRF
- SEA
2 stops23h 43m
Scandinavian Airlines
Sun 4/197:00 am
SEA
- TRF
2 stops22h 30m
Scandinavian Airlines
Deal found 2/8![Scandinavian Airlines logo]()
$662
This Scandinavian Airlines deal was found by Cheapflights users on 2/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
TRF
- SEA
1 stop16h 45m
Scandinavian Airlines
Fri 6/193:55 pm
SEA
- TRF
1 stop15h 40m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$693
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/183:05 pm
TRF
- SEA
1 stop31h 40m
Scandinavian Airlines
Sat 6/273:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$740
This lastminute.com deal was found by Cheapflights users on 2/11. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:10 pm
TRF
- SEA
1 stop29h 35m
Scandinavian Airlines
Sat 7/183:55 pm
SEA
- TRF
1 stop17h 10m
Scandinavian Airlines
Deal found 2/11![Scandinavian Airlines logo]()
$953
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:20 pm
TRF
- SEA
2 stops34h 40m
Multiple Airlines
Sun 8/303:55 pm
SEA
- TRF
1 stop13h 35m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,190
This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:00 am
TRF
- SEA
3 stops23h 40m
Multiple Airlines
Wed 4/153:40 pm
SEA
- TRF
3 stops23h 45m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$1,216
Last-minute flights from Oslo to SeattleDiscover last-minute flight deals from Oslo to Seattle. Data last updated February 12, 2026 and is based on user searches.
Discover last-minute flight deals from Oslo to Seattle. Data last updated February 12, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:00 pm
OSL
- SEA
1 stop27h 40m
Multiple Airlines
Wed 3/42:10 pm
SEA
- OSL
1 stop24h 25m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:30 am
OSL
- SEA
1 stop14h 10m
Delta
Wed 3/47:25 am
SEA
- OSL
2 stops19h 25m
Delta
Deal found 2/9![Delta logo]()
$504
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
OSL
- SEA
1 stop14h 10m
Multiple Airlines
Wed 3/42:10 pm
SEA
- OSL
1 stop24h 25m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$503
This KLM deal was found by Cheapflights users on 2/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
OSL
- SEA
1 stop14h 10m
KLM
Wed 3/47:10 am
SEA
- OSL
2 stops16h 30m
KLM
Deal found 2/12![KLM logo]()
$508
This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/289:25 am
OSL
- SEA
2 stops21h 57m
Delta
Wed 3/47:25 am
SEA
- OSL
2 stops19h 25m
Delta
Deal found 2/12![Delta logo]()
$514
This Ticket deal was found by Cheapflights users on 2/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:15 am
OSL
- SEA
1 stop14h 55m
Lufthansa
Thu 3/510:55 am
SEA
- OSL
2 stops19h 45m
Lufthansa
Deal found 2/10![Lufthansa logo]()
$482
This Travelis deal was found by Cheapflights users on 2/9. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/81:00 pm
OSL
- SEA
2 stops41h 45m
Multiple Airlines
Mon 3/237:00 am
SEA
- OSL
2 stops26h 40m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$495
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:20 am
OSL
- SEA
2 stops23h 22m
American Airlines
Mon 4/67:21 am
SEA
- OSL
2 stops31h 04m
American Airlines
Deal found 2/9![American Airlines logo]()
$584
One-way flights from Oslo to SeattleSearch for one-way flight options from Oslo to Seattle. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
Search for one-way flight options from Oslo to Seattle. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:30 pm
OSL
- SEA
1 stop25h 05m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$243
This Cheapflightsfares deal was found by Cheapflights users on 2/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:45 am
OSL
- SEA
1 stop19h 40m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$245
This Priceline deal was found by Cheapflights users on 2/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:50 pm
OSL
- SEA
2 stops31h 45m
Finnair
Deal found 2/10![Finnair logo]()
$259
This Finnair deal was found by Cheapflights users on 2/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:50 pm
OSL
- SEA
2 stops18h 48m
Finnair
Deal found 2/10![Finnair logo]()
$318
This Finnair deal was found by Cheapflights users on 2/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:50 pm
OSL
- SEA
2 stops19h 23m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 2/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:35 am
OSL
- SEA
1 stop16h 25m
Finnair
Deal found 2/10![Finnair logo]()
$321
This Priceline deal was found by Cheapflights users on 2/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:30 pm
OSL
- SEA
2 stops32h 06m
Finnair
Deal found 2/11![Finnair logo]()
$323
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/48:15 am
OSL
- SEA
1 stop19h 10m
British Airways
Deal found 2/11![British Airways logo]()
$365
This Iberia deal was found by Cheapflights users on 2/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:50 am
OSL
- SEA
2 stops21h 43m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:50 pm
OSL
- SEA
2 stops36h 54m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$412
This Orbitz deal was found by Cheapflights users on 2/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:35 pm
OSL
- SEA
2 stops41h 13m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:40 pm
TRF
- SEA
3 stops38h 11m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$467
Find flight deals from Oslo to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) to Seattle (SEA). 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 February 12, 2026.
Round-trip from | $389 (Ticket) |
|---|---|
One-way from | $243 (Cheapflightsfares) |
Popular in | December |
Cheapest in | May |
Average price | $619 |
Cheapflights Fare Finder
Customize your flight search to find flights from Oslo to Seattle 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 February 12, 2026.
Use the filters below to find and compare flights from Oslo to Seattle that are best for you.
Fly from
Oslo
Fly to
Seattle
Route
Depart
Return
Price
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Thu 4/2
12:50 pm-11:13 pm
2 stops19h 23m
Seattle/Tacoma Intl
Wed 4/15
7:09 am-12:05 pm
2 stops19h 56m
$474
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Wed 4/22
1:50 pm-5:55 pm
1 stop13h 05m
Seattle/Tacoma Intl
Sun 4/26
3:40 pm-12:35 pm
1 stop11h 55m
$477
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 3/2
6:15 am-12:10 pm
1 stop14h 55m
Seattle/Tacoma Intl
Thu 3/5
10:55 am-3:40 pm
2 stops19h 45m
$482
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Sun 3/8
1:00 pm-10:45 pm
2 stops41h 45m
Seattle/Tacoma Intl
Mon 3/23
3:00 pm-12:55 pm
1 stop13h 55m
$496
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Sun 6/7
8:35 am-4:00 pm
1 stop16h 25m
Seattle/Tacoma Intl
Thu 6/18
1:35 pm-4:35 pm
2 stops18h 00m
$500
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Sat 2/28
6:30 am-11:40 am
1 stop14h 10m
Seattle/Tacoma Intl
Wed 3/4
2:10 pm-11:35 pm
1 stop24h 25m
$503
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Sun 3/8
6:10 am-1:20 pm
1 stop16h 10m
Seattle/Tacoma Intl
Mon 3/23
3:00 pm-12:55 pm
1 stop13h 55m
$503
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Thu 2/26
6:30 am-11:40 am
1 stop14h 10m
Seattle/Tacoma Intl
Wed 3/4
7:25 am-11:50 am
2 stops19h 25m
$504
OsloSeattle
TRF - SEA
TRFSEA
Oslo Sandefjord
Sat 6/6
6:00 am-1:45 pm
1 stop16h 45m
Seattle/Tacoma Intl
Sat 6/20
3:55 pm-6:05 pm
1 stop17h 10m
$539
OsloSeattle
TRF - SEA
TRFSEA
Oslo Sandefjord
Wed 4/15
6:00 am-8:43 pm
2 stops23h 43m
Seattle/Tacoma Intl
Sun 4/19
7:00 am-2:30 pm
2 stops22h 30m
$662
Showing 1-10 of 31 results
Best time to book a flight from Oslo to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Oslo with our price prediction graph.
OS1-SEA
OSL-SEA
TRF-SEA
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 Oslo to Seattle
OS1-SEA
OSL-SEA
TRF-SEA
How far ahead should I book a flight from Oslo to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Oslo to Seattle. Price data was last updated on February 6, 2026.
The price you pay for your flight from Oslo to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Oslo to Seattle?
Currently, November is the cheapest month in which you can book a flight from Oslo to Seattle (average of $369). Flying from Oslo to Seattle in July is currently the most expensive (average of $516). 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 Oslo to Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 12, 2026.
Get a feel of what it's like to fly with Delta, Scandinavian Airlines, and Icelandair from Oslo to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Oslo to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsTacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis
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Alternative routes for Oslo to Seattle
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Complete your trip
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Search flights from Oslo to Seattle by cabin class
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Oslo and Seattle flights
Browse other Oslo and Seattle flight options. Last updated on February 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 12, 2026.
Top 4 airlines flying from Oslo to Seattle
Discover the top 4 airlines that operate flights from Oslo to Seattle. 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 February 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$436 | Average$539 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$436 | Average$619 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$455 | Average$525 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$603 | Average$703 | FlexibilityNo cancel fee | On-time77% |