Cheap flight tickets from Seattle to Oslo Gardermoen

Compare Seattle to Oslo Gardermoen flight deals

Find the cheapest month or even day of the year to fly to Oslo Gardermoen

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Flight deals from Seattle to Oslo Gardermoen Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Oslo Gardermoen Airport? If you want to travel next month, return fares start from RM1,566. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Oslo Gardermoen

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Oslo Gardermoen flights are currently cheapest in April.

Seattle to Oslo Gardermoen: Alternative routes

Compare routes from Seattle to Oslo below. You may find an airport to fly into that's cheaper, faster, or easier than Oslo Gardermoen.

Seattle to Oslo: Flight information

The things to know before you go.
Cheapest flight foundRM1,566
Cheapest month to flyApril

Finding cheap flights from Seattle to Oslo Gardermoen: Frequently asked questions

The best price we found for a return flight from Seattle to Oslo Gardermoen is RM1,566. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Oslo Gardermoen. But we found flights with one stop from RM1,566.
As of March 2026, there are no flights flying from Seattle to Oslo Gardermoen.
The cheapest month to fly from Seattle to Oslo Gardermoen is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Oslo Gardermoen Airport on Monday, 13 April 2026.
No airlines currently offer direct flights between Seattle and Oslo Gardermoen Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Oslo Gardermoen but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Oslo is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Oslo Gardermoen is Icelandair .

Travelling from Seattle to Oslo Airport Gardermoen (OSL): What you need to know

  • There are a couple of main airports where your trip can begin in Seattle. Explore your options departing from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when booking your flight from Seattle to Oslo Airport Gardermoen (OSL).

  • Oslo is eight hours ahead of Seattle. Oslo Airport Gardermoen is located in Oslo, which runs on the UTC+1 timezone.

  • To ensure you catch your flight from Seattle to OSL, leave enough time for things like check-in and baggage drop. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Heading off during a peak time like a bank holiday? Expect longer queues at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Consider adding a stopover to find cheap flights from Seattle to OSL. Just uncheck 'Direct flights only' when searching for departures from Seattle-Tacoma International Airport (SEA). Break the trip up (and maybe score a better deal) by stopping at one of these popular options:

    • Amsterdam Airport Schiphol (AMS)

    • Frankfurt Airport (FRA)

    • Keflavik International Airport (KEF)

  • Located around 23 kilometres from the centre of Seattle, SEA can be reached in about 20 minutes by car (depending on traffic). The journey on public transport is roughly 55 minutes.

  • Catching an early flight from Seattle to Oslo Airport Gardermoen? Avoid the mad dash to the terminal (and enjoy a few extra z's) by staying at one of these hotels near Seattle-Tacoma International Airport:

  • Seattle-Tacoma International Airport has a strong on-time performance, making delays less likely. Departures from SEA touch down on schedule 81.27% of the time.

Lake Union Sea Plane Base Airport (LKE)

  • LKE is about 3 kilometres from central Seattle. It'll take 10 minutes or so to get to the airport by car from the city centre. Public transport takes approximately 25 minutes.

  • Want to enjoy an extra night away before your Seattle to OSL flight? Check in to a hotel near Lake Union Sea Plane Base Airport before your trip officially starts. These stays are calling your name:

About Oslo Airport Gardermoen (OSL)

Getting from Oslo Airport Gardermoen (OSL) to central Oslo

  • Oslo Airport Gardermoen to central Oslo is around 40 kilometres. If you're renting a car or getting a cab, do a little research to make your trip as smooth as possible. Journey times may vary based on traffic and the time of day.

  • Travelling by public transport will take you around 30 minutes.

How to find the cheapest flights from Seattle to Oslo Airport Gardermoen (OSL)

  • RM690 is currently the best price for a one-way ticket from Seattle to Oslo Airport Gardermoen. A return flight starts from RM1,566. These prices may change depending on availability.

  • To pick up cheap flights from Seattle to OSL, book early. Airlines usually offer the most competitive fares when tickets first go on sale.

  • If you're flexible with your travel plans, use the 'Whole month' tool. It'll show you the cheapest price in each month when searching for your Seattle to Oslo Airport Gardermoen ticket.

  • Finding a cheap plane ticket from Seattle to OSL couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when there's a better deal.

  • Filters make it easier to scoop up a deal on your flight from Seattle to Oslo Airport Gardermoen. Pick the airlines, flight times and number of stops that look good to you. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from Seattle to Oslo Airport Gardermoen (OSL)

  • February is the quietest month for flights from Seattle to Oslo Airport Gardermoen (OSL), while June is the most popular. Find the ideal time to visit Oslo based on whether you want a lively atmosphere or a more laid-back vibe.

  • When booking your Seattle to OSL plane ticket, consider the kind of weather forecast you're hoping for. July is the warmest month in Oslo, with temperatures ranging from 8ºC (46ºF) to 25ºC (77ºF).

  • For cooler conditions, search for a cheap ticket from Seattle to Oslo Airport Gardermoen in January when temperatures are between -14ºC (7ºF) and 1ºC (34ºF).

More about Oslo

  • Start your Oslo trip right by choosing the ideal place to stay. After booking your flight from Seattle to Oslo Airport Gardermoen, check out our selection of accommodation options including:

  • Every great journey has to include a little sightseeing. The Norwegian National Opera & Ballet, M/S Nobel: Oslo Fjord Sightseeing / Hop On Hop Off Boat and Viking Ship Museum are must-visits when exploring Oslo.

Explore more of Norway

  • Oslo is always a good idea, but there are so many other corners of Norway just waiting to be explored. Around 290 kilometres south-west of Oslo, a trip to Kristiansand will keep you busy. Start with leading attractions like Lille Kjæragbolten, Holmenkollen and Bystranda.

  • Around 137 kilometres south-west of Oslo, Skien is another essential stop in Norway. Experience this destination's highlights firsthand at The Telemark Canal, Skien Sluse (Telemarkskanalen) and The Adventure Factory.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.