$198+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Oct 6 — Oct 131
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 6, 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 6, 2026.
This Mytrip deal was found by Cheapflights users on 9/4. 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.
Sat 10/243:40 pm -
1 stop11h 55m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/4![Icelandair logo]()
$398
This oojo deal was found by Cheapflights users on 9/3. 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 10/193:40 pm -
1 stop11h 55m
Wed 10/281:10 pm -
1 stop12h 50m
Deal found 9/3![Icelandair logo]()
$399
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:40 pm -
1 stop11h 35m
Sun 10/253:30 pm -
1 stop34h 30m
Deal found 9/5![Icelandair logo]()
$401
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:40 pm -
1 stop11h 55m
Fri 10/301:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$405
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:40 pm -
1 stop11h 55m
Thu 10/299:30 pm -
1 stop28h 30m
Deal found 9/5![Icelandair logo]()
$407
This Trip.com deal was found by Cheapflights users on 9/4. 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.
Fri 12/42:35 pm -
1 stop12h 00m
Mon 12/71:10 pm -
1 stop12h 50m
Deal found 9/4![Icelandair logo]()
$427
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:55 pm -
1 stop31h 15m
Mon 10/51:35 pm -
1 stop33h 10m
Deal found 9/5![Scandinavian Airlines logo]()
$434
This oojo deal was found by Cheapflights users on 9/3. 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
Sun 12/209:30 pm -
1 stop28h 30m
Deal found 9/3![Icelandair logo]()
$437
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop13h 35m
Fri 10/93:05 pm -
1 stop31h 40m
Deal found 9/2![Scandinavian Airlines logo]()
$448
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 25m
Fri 10/301:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$449
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop14h 00m
Fri 10/94:00 pm -
1 stop30h 45m
Deal found 9/2![Scandinavian Airlines logo]()
$451
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 25m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$455
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 6, 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 6, 2026.
This oojo deal was found by Cheapflights users on 9/1. 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 10/146:50 pm -
1 stop18h 15m
Mon 10/196:45 am -
1 stop14h 35m
Deal found 9/1![Lufthansa logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/206:50 pm -
1 stop18h 15m
Sat 10/311:55 pm -
1 stop31h 05m
Deal found 9/1![United Airlines logo]()
$520
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:55 pm -
1 stop13h 35m
Fri 10/93:05 pm -
1 stop31h 40m
Deal found 9/5![Scandinavian Airlines logo]()
$589
This KLM deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:45 pm -
1 stop13h 35m
Wed 9/2311:50 am -
1 stop13h 45m
Deal found 9/5![KLM logo]()
$635
This Delta deal was found by Cheapflights users on 9/2. 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.
Wed 9/161:24 pm -
2 stops20h 11m
Fri 9/256:30 am -
1 stop19h 05m
Deal found 9/2![Delta logo]()
$651
This KLM deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:45 pm -
2 stops15h 45m
Tue 11/36:00 am -
2 stops16h 50m
Deal found 9/5![Multiple Airlines logo]()
$864
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 9/5![United Airlines logo]()
$528
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:55 pm -
1 stop23h 30m
Fri 10/93:05 pm -
1 stop31h 40m
Deal found 9/5![Scandinavian Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:13 pm -
2 stops33h 02m
Tue 10/66:45 am -
2 stops24h 10m
Deal found 9/5![United Airlines logo]()
$538
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:10 pm -
1 stop13h 10m
Tue 10/66:55 am -
1 stop14h 25m
Deal found 9/5![United Airlines logo]()
$542
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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 stops23h 34m
Deal found 9/2![Scandinavian Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:50 pm -
1 stop31h 05m
Wed 10/77:10 am -
1 stop18h 49m
Deal found 9/5![United Airlines logo]()
$591
This Scandinavian Airlines deal was found by Cheapflights users on 9/2. 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 9/2![Scandinavian Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/3. 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 12/107:00 am -
2 stops25h 10m
Sun 12/206:15 am -
1 stop14h 45m
Deal found 9/3![United Airlines logo]()
$621
This Icelandair deal was found by Cheapflights users on 9/4. 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.
Sun 10/47:00 pm -
2 stops14h 00m
Fri 10/912:10 pm -
2 stops14h 45m
Deal found 9/4![Multiple Airlines logo]()
$923
This KLM deal was found by Cheapflights users on 9/2. 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.
Mon 10/191:45 pm -
2 stops15h 45m
Tue 10/276:00 am -
2 stops16h 50m
Deal found 9/2![Multiple Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/243:24 pm -
2 stops23h 16m
Tue 1/126:15 am -
3 stops26h 16m
Deal found 9/4![United Airlines logo]()
$655
This Icelandair deal was found by Cheapflights users on 9/4. 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.
Fri 10/27:00 pm -
2 stops14h 35m
Fri 10/912:10 pm -
2 stops14h 45m
Deal found 9/4![Multiple Airlines logo]()
$973
This oojo deal was found by Cheapflights users on 9/3. 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 10/142:30 pm -
2 stops24h 55m
Mon 10/196:00 am -
2 stops26h 04m
Deal found 9/3![Scandinavian Airlines logo]()
$986
Last-minute flights from Seattle to OsloDiscover last-minute flight deals from Seattle to Oslo. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Oslo. Data last updated September 6, 2026 and is based on user searches.
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:55 pm -
1 stop31h 15m
Mon 10/51:35 pm -
1 stop33h 10m
Deal found 9/5![Scandinavian Airlines logo]()
$434
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop13h 35m
Fri 10/93:05 pm -
1 stop31h 40m
Deal found 9/2![Scandinavian Airlines logo]()
$448
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop14h 00m
Fri 10/94:00 pm -
1 stop30h 45m
Deal found 9/2![Scandinavian Airlines logo]()
$451
This oojo deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop12h 00m
Sun 10/116:00 am -
1 stop16h 45m
Deal found 9/3![Scandinavian Airlines logo]()
$477
This oojo deal was found by Cheapflights users on 9/3. 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 10/193:40 pm -
1 stop11h 55m
Wed 10/281:10 pm -
1 stop12h 50m
Deal found 9/3![Icelandair logo]()
$399
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:40 pm -
1 stop11h 55m
Fri 10/301:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$405
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:40 pm -
1 stop11h 55m
Thu 10/299:30 pm -
1 stop28h 30m
Deal found 9/5![Icelandair logo]()
$407
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 25m
Fri 10/301:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$449
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 25m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/5![Icelandair logo]()
$455
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 25m
Thu 10/299:30 pm -
1 stop28h 30m
Deal found 9/5![Icelandair logo]()
$457
This oojo deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:40 pm -
1 stop11h 35m
Sun 10/253:30 pm -
1 stop34h 30m
Deal found 9/5![Icelandair logo]()
$401
This Mytrip deal was found by Cheapflights users on 9/4. 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.
Sat 10/243:40 pm -
1 stop11h 55m
Sat 10/311:10 pm -
1 stop12h 50m
Deal found 9/4![Icelandair logo]()
$398
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 6, 2026.
Search for one-way flight options from Seattle to Oslo. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This SmartFares deal was found by Cheapflights users on 9/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Scandinavian Airlines logo]()
$198
This SmartFares deal was found by Cheapflights users on 9/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm -
1 stop13h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Scandinavian Airlines logo]()
$198
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub 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 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Scandinavian Airlines logo]()
$207
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Sun 10/113:55 pm -
1 stop32h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Scandinavian Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 10/43:55 pm -
3 stops30h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/103:55 pm -
3 stops44h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:55 pm -
3 stops54h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$261
This Mytrip deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:35 pm -
1 stop12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Icelandair logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/33:55 pm -
3 stops44h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/103:55 pm -
3 stops42h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/183:40 pm -
3 stops30h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/43:55 pm -
2 stops22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$279
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 6, 2026.
Round-trip from | $398 (Mytrip) |
|---|---|
One-way from | $198 (SmartFares) |
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 6, 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 10/4
3:55 pm-2:30 pm
1 stop13h 35m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$198
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sun 10/11
3:55 pm-12:25 am
1 stop23h 30m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$218
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sat 10/10
3:55 pm-9:15 pm
3 stops44h 20m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$255
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sat 10/3
3:55 pm-9:15 pm
3 stops44h 20m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$267
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Thu 10/15
7:00 pm-5:30 pm
3 stops37h 30m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$277
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Sat 10/3
3:55 pm-11:25 pm
3 stops46h 30m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$285
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sun 10/11
7:00 pm-2:30 pm
3 stops34h 30m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$293
SeattleOslo
SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord
SEATRF
Seattle/Tacoma Intl
Sun 10/4
3:55 pm-5:20 pm
2 stops16h 25m
Oslo Sandefjord
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$315
Quickest round-trip
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Tue 10/13
7:00 pm-3:25 pm
1 stop11h 25m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$316
SeattleOslo
SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen
SEAOSL
Seattle/Tacoma Intl
Wed 10/21
7:15 am-8:40 pm
2 stops28h 25m
Oslo Gardermoen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$321
Showing 1-10 of 38 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 $420). 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 $495 and $670 in October.The cheapest round-trip price found within the last 5 days was $398 on Icelandair (Oct 24-Oct 31).
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 80 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 6, 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.
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Crew
8.4
Entertainment
7.2
Overall
7.8
Boarding
7.8
Comfort
7.7
Food
7.3
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 6, 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 6, 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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$537 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$393 | Average$577 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$426 | Average$643 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$468 | 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% |