Cheap Flights from Oslo to Seattle, WA from $278

Return flight: Seattle – Oslo

On Cheapflightsplus.com you will find 1000 connecting flights from Oslo to Seattle. You can compare airfare deals from 27 airlines and multiple travel sites from $278, book and save on cheap plane tickets and last minute offers. Also check out OSL-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Oslo to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Oslo and Seattle is 7329 miles. Time difference between the cities is 9h. Airplanes depart 05:00 to 23:40 from 3 Oslo airports and arrive 05:00 to 23:40 to 3 Seattle airports. Average flight time is 27h 58m.

  • The fastest flight 11h 45m
  • Average flight time 27h 58m
  • The earliest flight 05:00
  • The latest flight 23:40
  • Distance 4555 ml

The cheapest months to travel to Seattle are october (from 278 $), august (from 293 $), july (from 440 $).

The most expensive months are january (from 835 $), february (from 649 $), september (from 509 $).

What is the lowest airfare Oslo to Seattle?

The cheapest plane ticket found by our users is $278. This airfare is for economy class on one-way AY916 flight by Finnair for October 7, 2025 which leaves Gardermoen in Oslo at 17:20 am and arrives at Seattle Seattle-Tacoma Intl at 11:35.

Economy class
$278
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Business class
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First class
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Flight Schedule Oslo to Seattle (Washington)

06:50 — 15:05
17h 15m flight time
Find flight
from$457
18:45 — 20:50 Oslo — Frankfurt
LH867 Lufthansa
4h 45m stop
14:25 — 16:10 Frankfurt — Seattle
DE2032 Condor Airlines
08:35 — 16:00
16h 25m flight time
Find flight
from$346
08:35 — 10:55 Oslo — Helsinki
AY912 Finnair
5h 25m stop
16:20 — 16:00 Helsinki — Seattle
AY33 Finnair
08:35 — 16:00
16h 25m flight time
Find flight
from$375
08:35 — 10:55 Oslo — Helsinki
BA6027 British Airways
5h 25m stop
16:20 — 16:00 Helsinki — Seattle
BA6002 British Airways
08:35 — 16:00
16h 25m flight time
Find flight
from$419
08:35 — 10:55 Oslo — Helsinki
AY912 Finnair
5h 25m stop
16:20 — 16:00 Helsinki — Seattle
IB6465 Iberia
11:15 — 11:35+1day
33h 20m flight time
Find flight
from$285
11:15 — 12:45 Oslo — London
BA761 British Airways
21h 5m stop
09:50 — 11:35 London — Seattle
IB3509 Iberia
13:10 — 16:00
11h 50m flight time
Find flight
from$371
13:10 — 15:35 Oslo — Helsinki
AY914 Finnair
45m stop
16:20 — 16:00 Helsinki — Seattle
AY33 Finnair
13:10 — 16:00
11h 50m flight time
Find flight
from$419
13:10 — 15:35 Oslo — Helsinki
AY914 Finnair
45m stop
16:20 — 16:00 Helsinki — Seattle
IB6465 Iberia
17:20 — 16:00+1day
31h 40m flight time
Find flight
from$399
17:20 — 19:45 Oslo — Helsinki
AY916 Finnair
20h 40m stop
16:20 — 16:00 Helsinki — Seattle
AY33 Finnair
17:20 — 16:00+1day
31h 40m flight time
Find flight
from$418
17:20 — 19:45 Oslo — Helsinki
AY916 Finnair
20h 40m stop
16:20 — 16:00 Helsinki — Seattle
IB6465 Iberia
19:25 — 11:35+1day
25h 10m flight time
Find flight
from$285
19:25 — 20:45 Oslo — London
BA763 British Airways
13h 5m stop
09:50 — 11:35 London — Seattle
IB3509 Iberia
20:05 — 21:50+1day
34h 45m flight time
Find flight
from$453
20:05 — 22:00 Oslo — New York
N01 N0
20h 36m stop
18:53 — 22:15 New York — Seattle
HA4990 Hawaiian Airlines
20:05 — 20:35+1day
33h 30m flight time
Find flight
from$457
20:05 — 22:00 Oslo — Newark
N01 N0
19h 30m stop
17:30 — 20:44 Newark — Seattle
HA4901 Hawaiian Airlines
20:45 — 16:00+1day
28h 15m flight time
Find flight
from$383
20:45 — 23:10 Oslo — Helsinki
BA6078 British Airways
17h 10m stop
16:20 — 16:00 Helsinki — Seattle
BA6002 British Airways
20:45 — 16:00+1day
28h 15m flight time
Find flight
from$399
20:45 — 23:10 Oslo — Helsinki
AY918 Finnair
17h 10m stop
16:20 — 16:00 Helsinki — Seattle
AY33 Finnair
20:45 — 16:00+1day
28h 15m flight time
Find flight
from$418
20:45 — 23:10 Oslo — Helsinki
AY918 Finnair
17h 10m stop
16:20 — 16:00 Helsinki — Seattle
IB6465 Iberia
Full flight schedule will help you in detecting at what time planes fly from Oslo to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on December 2, 2025.

Popular Airlines on the Route

The flight Oslo — Seattle is served by 27 regular airlines and 6 low-cost airlines. Most of the flights on this route are operated by LOT - 23 departures per week at the price of from $ 637 . And the most expensive tickets are offered by Norwegian airline - from $ 1303.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 1000 flights with layovers on the route. The fastest connecting flight is SK1467 by SAS takes 11h 45m and the cheapest is AY916 by Finnair for $278.

  • FI - Icelandair
    from $491
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  • VY - Vueling
    from $566
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  • LO - LOT
    from $637
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  • JU - Air Serbia
    from $1286
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  • LX - SWISS International Air Lines
    from $487
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  • FR - Ryanair
    from $672
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  • WF - Wideroe's Flyveselskap
    from $375
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  • BT - airBaltic
    from $722
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  • DY - Norwegian
    from $410
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  • SK - SAS
    from $361
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  • IB - Iberia
    from $449
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  • SN - Brussels Airlines
    from $978
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See more connecting flights

Airports

You can fly from Oslo to Seattle from 3 airports (Gardermoen, Sandefjord, Puente Genil).

Oslo airports

  • Gardermoen-OSL
    from $278
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  • Sandefjord-TRF
    from $375
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  • Puente Genil-GEN
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Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
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  • Kenmore Air Harbor SPB-LKE
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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