$198 Find Cheap Flights from Seattle to Oslo - Compare and Save

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Everything you should know

Cheapest round-trip
$396
Typical prices: $514-$729
Icelandair
Wed 10/24Wed 10/31
SEA - OSL • 1 stop
Cheapest one-way
$198
Typical prices: $245-$445
Scandinavian Airlines
Thu 10/11
SEA - TRF • 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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Insights
Top routes
SEA - OSL
Cheapest • 11% 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 22% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 30% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Paris Charles de Gaulle (CDG)
Cheapest • Avg $554 (round-trip)
Reykjavik Keflavik Intl (KEF)
Shortest trip • 13h 47m (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, Oct 19 - Mon, Oct 26
Icelandair Logo
3:40 pm - 12:35 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
11h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
1:10 pm - 6:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
12h 50m1 stop Reykjavik Keflavik Intl
$396Icelandair
Sat, Oct 24 - Sat, Oct 31
Icelandair Logo
3:40 pm - 12:35 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
11h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
1:10 pm - 6:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
12h 50m1 stop Reykjavik Keflavik Intl
$396Icelandair
Tue, Oct 6 - Sun, Oct 11
Scandinavian Airlines Logo
3:55 pm - 8:10 amSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
31h 15m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:30 am - 1:45 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
16h 15m1 stop Kastrup Copenhagen
$480Scandinavian Airlines
Thu, Jan 14 - Mon, Jan 25
Multiple Airlines Logo
8:40 am - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
24h 00m2 stops Vancouver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:15 am - 12:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$480Multiple Airlines
Sun, Oct 18 - Thu, Oct 22
Multiple Airlines Logo
6:50 pm - 10:05 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
18h 15m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
11:45 am - 10:47 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
20h 02m2 stops Munich Franz Josef Strauss Vancouver Intl
$480Multiple Airlines
Sun, Oct 4 - Sat, Oct 10
Scandinavian Airlines Logo
3:55 pm - 8:10 amSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
31h 15m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
9:30 pm - 1:45 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
25h 15m1 stop Kastrup Copenhagen
$489Scandinavian Airlines
Sun, Nov 8 - Wed, Nov 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
Tue, Oct 20 - Sun, Nov 1
Lufthansa Logo
6:50 pm - 10:05 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
18h 15m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:15 am - 1:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$499Lufthansa
Sun, Oct 18 - Sun, Nov 1
United Airlines Logo
6:50 pm - 10:05 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
18h 15m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 1:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
$500United Airlines
Tue, Oct 20 - Mon, Nov 2
United Airlines Logo
6:50 pm - 10:05 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
18h 15m1 stop 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
$500United 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 from Seattle to Oslo with more confidence.

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

Round-trip flights from Seattle to Oslo start at $396. Prices are below average for this route right now, with typical round-trip fares ranging from $514 to $729. The lowest price found in the past 5 days was $396 on Icelandair.

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

Tuesday is the cheapest day of the week to fly from Seattle to Oslo, it is 5% cheaper than the average day. Saturday is the most expensive day with flight prices 23% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Seattle to Oslo at $421 round-trip.
  • December ($791) and June ($662) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 87% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Oslo the cheapest?

Flights from Seattle to Oslo are cheapest 23 weeks before departure. Booking in this window typically costs about 22% 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

$198
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Seattle to Oslo Sandefjord 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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

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

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • 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) - 61% of one-stop connections
    • Amsterdam Schiphol (AMS) - 16% of one-stop connections
    • Kastrup Copenhagen (CPH) - 9% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 4% of one-stop connections

    Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 23% on the Seattle to Oslo route. Tuesday is the cheapest departure day at $574 round-trip on average, while Saturday is the most expensive at $744, a difference of $170. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Oslo?

    Some of the most popular sights in Oslo are Oslo City Centre, Oslo sentralstasjon and Nationaltheatret. These are among the most viewed places in Oslo on KAYAK.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 7% above the route average of $602. Book 23 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Oslo?

    A nonstop flight from Seattle to Oslo takes 0h 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 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 $276, which is 18% below the typical average for this route.

  • 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 47m, compared with 14h 09m via Helsinki-Vantaa (HEL) and 14h 35m via Kastrup Copenhagen (CPH).

  • What is the time difference between Seattle and Oslo?

    Oslo is 9 hours ahead of Seattle (Central European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

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

    Oslo Gardermoen Airport (OSL) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
    • Hertz
    • Budget
    • Sixt
    • Avis
    • Thrifty

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

    Round-trip flights from Seattle to Oslo range from $514 to $729, with an average of $602 over the past 12 months. Anything below $514 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average $574 - about $170 less than Saturday (23% 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 22% 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 $421 round-trip in that month - typically $370 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