OSL - SEA

£329 Find Cheap Flights from Oslo to Seattle

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oslo to Seattle departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Seattle, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Oslo to Seattle (OSL-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Oslo to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Oslo to Seattle

Mon, 15 Sep - Mon, 22 Sep
Air Canada Logo
06:35 - 18:36OSL-SEA
21h 01m2 stops
Air Canada Logo
07:15 - 12:15SEA-OSL
20h 00m2 stops
£329Air Canada
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Sun, 5 Oct - Sun, 19 Oct
Logo
08:35 - 19:09OSL-SEA
19h 34m2 stops
Logo
20:20 - 23:40SEA-OSL
18h 20m1 stop
£343
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Mon, 8 Sep - Wed, 24 Sep
United Airlines Logo
06:35 - 09:22OSL-SEA
35h 47m2 stops
United Airlines Logo
18:50 - 22:10SEA-OSL
18h 20m1 stop
£345United Airlines
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Mon, 8 Sep - Wed, 24 Sep
United Airlines Logo
06:35 - 18:36OSL-SEA
21h 01m2 stops
United Airlines Logo
18:50 - 22:10SEA-OSL
18h 20m1 stop
£348United Airlines
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Sat, 13 Sep - Sat, 20 Sep
Icelandair Logo
16:30 - 11:25OSL-SEA
27h 55m1 stop
Icelandair Logo
19:00 - 15:45SEA-OSL
11h 45m1 stop
£348Icelandair
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Mon, 8 Sep - Wed, 24 Sep
United Airlines Logo
06:35 - 11:55OSL-SEA
14h 20m1 stop
United Airlines Logo
18:50 - 18:05SEA-OSL
14h 15m1 stop
£350United Airlines
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Mon, 15 Sep - Mon, 22 Sep
SWISS Logo
05:40 - 14:55OSL-SEA
18h 15m1 stop
SWISS Logo
14:29 - 23:55SEA-OSL
24h 26m2 stops
£351SWISS
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Sat, 13 Sep - Sat, 20 Sep
United Airlines Logo
06:35 - 20:42OSL-SEA
23h 07m2 stops
United Airlines Logo
22:55 - 12:15SEA-OSL
28h 20m2 stops
£356United Airlines
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Wed, 24 Sep - Mon, 29 Sep
Delta Logo
06:30 - 11:45OSL-SEA
14h 15m1 stop
Delta Logo
20:25 - 13:45SEA-OSL
32h 20m1 stop
£358Delta
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Wed, 3 Sep - Thu, 18 Sep
Icelandair Logo
16:30 - 20:40OSL-SEA
13h 10m1 stop
Icelandair Logo
19:00 - 15:25SEA-OSL
11h 25m1 stop
£1,879Icelandair
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Booking Insights

KAYAK's insights & trends for Oslo to Seattle flights

Get data-powered insights and trends into flights from Oslo to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Oslo Gardermoen Airport to Seattle?

What is the cheapest month to fly from Oslo Gardermoen Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oslo Gardermoen Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Oslo Gardermoen Airport to Seattle is October, where tickets cost £346 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is £555 and £505 respectively.

How far in advance should I book a flight from Oslo Gardermoen Airport to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Oslo Gardermoen Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Oslo Gardermoen Airport to Seattle, you should book around 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

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Good to know - Cheap tickets from Oslo to Seattle

Low seasonNovember
Cheapest flight£329
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (28% more expensive on average)
Flight from Oslo to Seattle

When to book flights from Oslo to Seattle

Are your dates flexible? Find out the best times to travel from Oslo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Oslo to Seattle flights

  • What is the cheapest flight from Oslo Gardermoen Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Oslo Gardermoen Airport to Seattle was £445 for a one-way ticket and £435 for a return.

  • Which airports will I be using when flying from Oslo to Seattle?

    When flying out of Oslo you will be using Oslo Gardermoen. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Oslo to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Oslo to Seattle?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Oslo and Seattle, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Oslo to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oslo to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oslo to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Oslo is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oslo to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to Oslo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oslo to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Oslo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Oslo to Seattle

Information on your arrival and departure airports

Oslo (OSL)
Seattle (SEA)

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