$232 Find Cheap Flights from Seattle to Oslo - Compare and Save

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Everything you should know

Cheapest round-trip
$402
Typical prices: $522-$748
Icelandair
Fri 11/23Sat 12/8
SEA - OSL • 1 stop
Cheapest one-way
$232
Typical prices: $248-$424
Icelandair
Sun 11/25
SEA - OSL • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Oslo. You'll need to take a connecting flight to reach the destination.
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Top routes
SEA - OSL
Cheapest • 10% average savings
SEA - TRF
Most popular
Insights
Insights
When to book
23 weeks
in advance
Our data shows that travelers who book at least 23 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 21% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $529 (round-trip)
Reykjavik Keflavik Intl (KEF)
Shortest trip • 13h 44m (one-way)
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Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Oslo (SEA-OSL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Oslo

Mon, Nov 23 - Tue, Dec 8
Icelandair Logo
2:35 pm - 11:35 amSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
1:10 pm - 5:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
12h 50m1 stop Reykjavik Keflavik Intl
$402Icelandair
Mon, Nov 23 - Tue, Dec 8
Icelandair Logo
2:35 pm - 11:35 amSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
1:10 pm - 5:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
12h 50m1 stop Reykjavik Keflavik Intl
$414Icelandair
Wed, Apr 14 - Wed, Apr 28
Multiple Airlines Logo
6:50 pm - 5:55 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
14h 05m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
11:45 am - 9:58 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
19h 13m2 stops Munich Franz Josef Strauss Vancouver Intl
$475Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
41h 25m2 stops Vancouver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:15 am - 9:57 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
24h 42m2 stops Frankfurt am Main Vancouver Intl
$475Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Air Canada Logo
3:15 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
41h 25m2 stops Vancouver Intl Munich Franz Josef Strauss
Air Canada Logo
6:15 am - 8:59 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
47h 44m2 stops Frankfurt am Main Toronto Pearson Intl
$481Air Canada
Wed, Apr 21 - Thu, Apr 29
Air Canada Logo
8:40 am - 5:55 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
24h 15m2 stops Vancouver Intl Munich Franz Josef Strauss
Air Canada Logo
7:00 am - 9:58 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
23h 58m2 stops Munich Franz Josef Strauss Vancouver Intl
$495Air Canada
Fri, Jan 15 - Mon, Jan 18
Lufthansa Logo
2:50 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
17h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:15 am - 12:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$497Lufthansa
Wed, Apr 21 - Thu, Apr 29
Lufthansa Logo
7:05 pm - 9:55 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
41h 50m2 stops Vancouver Intl Munich Franz Josef Strauss
Lufthansa Logo
6:25 am - 12:20 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 55m1 stop Frankfurt am Main
$497Lufthansa
Mon, Nov 9 - Sun, Nov 15
United Airlines Logo
5:05 am - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
27h 35m2 stops Denver Intl Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 12:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$502United Airlines
Tue, Nov 10 - Sun, Nov 15
United Airlines Logo
8:09 am - 11:00 amSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
17h 51m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 12:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$502United Airlines
Booking Insights

Price, demand and travel trends for Seattle to Oslo flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Seattle to Oslo typically range from $522 to $748. The lowest price found in the past 5 days was $402, on Icelandair.

What's the cheapest day of the week to fly from Seattle to Oslo?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Seattle to Oslo. It’s 5% cheaper than the average day, while Saturday is the most expensive, with prices 21% higher.

What’s the cheapest month to fly from Seattle to Oslo?

•January is the cheapest month to fly from Seattle to Oslo at $484 round-trip.
•December ($793) and June ($659) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 63% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Oslo the cheapest?

Flights from Seattle to Oslo are cheapest 23 weeks before departure. Booking in this window typically costs about 26% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Seattle to Oslo flights

Low season

February

Cheapest flight

$232
Beat the crowds with an average 52% drop in travelers.
The most popular month to fly with an average 88% increase in travelers.
One-way flight from Seattle to Oslo Gardermoen Airport

When to book flights from Seattle to Oslo

Are your dates flexible? Find out the best times to travel from Seattle to Oslo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Oslo flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Seattle to Oslo?

    Three cabin classes are available on flights from Seattle to Oslo:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Seattle to Oslo?

    A nonstop flight from Seattle to Oslo takes 00m, covering 4,560 miles.

  • Do I need a passport to fly from Seattle to Oslo?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seattle to Oslo flight?

    Round-trip flights from Seattle to Oslo range from $522 to $748, with an average of $614 over the past 12 months. Anything below $522 counts as a good deal.

  • How expensive are last-minute Seattle to Oslo flights?

    Last-minute fares on this route (booked within two weeks of departure) run 9% above the $614 route average. Book 23 weeks before departure for the lowest fares.

  • How are flight prices from Seattle to Oslo looking right now?

    One-way fares from Seattle to Oslo are currently lower than usual. Average one-way flight prices are about $313, which is 6% below the typical average for this route.

  • What car rental options are available at Oslo Gardermoen Airport (OSL)?

    Oslo Gardermoen Airport (OSL) hosts 5 major car rental companies, with daily rates averaging $66 for economy cars. Top options include:

    • Hertz
    • Budget
    • Sixt
    • Avis
    • Thrifty

  • Which airports can I use when flying from Seattle to Oslo?

    Flights from Seattle to Oslo usually depart from Seattle/Tacoma Intl (SEA) and may arrive at several airports in Oslo area, including Oslo Gardermoen (OSL) and Oslo Sandefjord (TRF).

  • Which airports do connecting flights from Seattle to Oslo pass through?

    One-stop flights from Seattle to Oslo most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) - 57% of one-stop connections
    • Amsterdam Schiphol (AMS) - 16% of one-stop connections
    • Kastrup Copenhagen (CPH) - 11% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Oslo?

    Yes. Flexible dates can save you up to 23% on flights from Seattle to Oslo. Tuesday is the cheapest departure day at $584 round-trip on average, while Saturday is the most expensive at $749, a difference of $165.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Seattle to Oslo?

    Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time at 13h 44m, compared with 13h 44m via Helsinki-Vantaa (HEL) and 14h 29m via Kastrup Copenhagen (CPH).

  • What is the time difference between Seattle and Oslo?

    Oslo is 8 hours ahead of Seattle (Central European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Oslo?

    Some of the most popular sights in Oslo are Nationaltheatret, Rockefeller and Oslo domkirke. These are among the most viewed places in Oslo on KAYAK.

Your guide to booking Seattle to Oslo flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $584, about $165 less than Saturday fares (22% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 23 weeks before you fly. On this route, that window historically saves about 26% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Oslo trip for January. Fares historically average $484 round-trip in that month - typically $309 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Seattle to Oslo

Complete your trip to Oslo with a hotel stay or car rental

Car rentals in Oslo
Hotels in Oslo
Vacations in Oslo