Cheap flight tickets from Seattle to Oslo

Compare Seattle to Oslo flight deals

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

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Flight deals from Seattle to Oslo

Looking for a cheap last-minute deal or the best return flight from Seattle to Oslo? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Oslo

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

Alternative Seattle to Oslo routes

Looking for the cheapest, fastest or easiest route from Seattle to Oslo? You could fly into the following airports instead.

Seattle to Oslo: Flight information

The things to know before you go.
Cheapest flight foundRM1,612
Cheapest month to flyMarch

Finding cheap flights from Seattle to Oslo: Frequently asked questions

There are 2 airports in Oslo: Oslo Gardermoen and TORP Sandefjord.
The best price we found for a return flight from Seattle to Oslo is RM1,612. 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. But we found flights with one or more stops from RM1,612.
As of February 2026, there are no flights flying from Seattle to Oslo.
The cheapest month to fly from Seattle to Oslo is usually March.
If you're flying from Seattle, the cheapest airport near Oslo is Oslo Gardermoen – which is 37.1 km away from the centre of Oslo. We've found flights into this airport from RM1,612.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Oslo on Monday, 30 March 2026.
No airlines currently offer direct flights between Seattle and Oslo. 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 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.
In February, the average temperature is usually around -6°C. July is typically the warmest month in Oslo, when it usually averages around 20°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging -9°C. The rainiest month is August.
The cheapest airline that flies to Oslo is Icelandair .

Travelling from Seattle to Oslo: what you need to know

  • There are a couple of main airports you can take off from in Seattle. Explore your options departing from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when searching for a flight from Seattle to Oslo.

  • Hop off your plane in Oslo at Oslo Airport Gardermoen (OSL) or Torp Sandefjord Airport (TRF).

  • Oslo is eight hours ahead of Seattle and follows the UTC+1 timezone.

  • To ensure you make it on your Seattle to Oslo flight, 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 rule.

  • Be prepared for bigger queues in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a good idea.

How to find the cheapest flights from Seattle to Oslo

  • Don't wait until the last moment. You're more likely to find cheap Seattle to Oslo flights if you book ahead. Airlines often offer some fantastic early bird rates.

  • Finding cheap plane tickets from Seattle to Oslo is more likely if you're flexible with your trip dates. Try using the 'Whole month' search tool to see the best prices across each month and pick up an awesome deal.

  • Locking in a cheap flight from Seattle to Oslo is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Save on your Seattle to Oslo flight with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it a breeze to find a Seattle to Oslo flight with a stopover. To see all your options leaving from Seattle-Tacoma International Airport, uncheck 'Direct flights only.' Next, choose a flight that has a stop long enough to see the sights of your chosen city. Top stopovers include:

    • Amsterdam Airport Schiphol (AMS)

    • Frankfurt Airport (FRA)

    • Keflavik International Airport (KEF)

  • Travelling from central Seattle to SEA takes about 55 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic.

  • After a relaxed start to your holiday? Stay near Seattle-Tacoma International Airport. Whether you're taking an early flight from Seattle to Oslo or want to avoid feeling rushed, these hotels are the answer:

  • 81.27% of flights leaving Seattle-Tacoma International Airport land at their destination on time. Given its dependable on-time performance, you're unlikely to face delays when setting off from SEA.

Arriving in Oslo

Oslo Airport Gardermoen (OSL)

  • Oslo Airport Gardermoen (OSL) is approximately 40 kilometres from the centre of Oslo. If you're catching a cab or a ride-share, the drive takes roughly 40 minutes.

  • It usually takes 30 minutes to get there on public transport.

  • The last thing you want is a long journey to your hotel if you're arriving on a late flight from Seattle to Oslo. Book one of these accommodation options near OSL instead:

  • Go where the road takes you with an Oslo Airport Gardermoen rental car. Pick up your wheels from Budget, Hertz or Thrifty and discover more of Oslo and beyond.

  • Reserving your ride from Oslo Airport Gardermoen about three weeks ahead increases your chances of getting a good deal.

Torp Sandefjord Airport (TRF)

  • Central Oslo is about 88 kilometres from Torp Sandefjord Airport (TRF). After your flight from Seattle to Oslo has landed and you've made your way out of the airport, expect a drive of around 1 hour 30 minutes.

  • You can expect the journey to take about 2 hours 20 minutes on public transport.

  • There are some great places to lay your head close to TRF. Tuck yourself in after your Seattle to Oslo flight at one of these perfectly located options:

  • Hertz, Sixt and Budget make collecting a Torp Sandefjord Airport rental car quick and easy. These trusted providers are located around or in the terminal and will have you behind the wheel before you know it.

  • Get what you want, not just what's left over. Booking your ride from TRF one week in advance often means better deals and a greater selection of vehicles.

Best time to go to Oslo

  • It's time to plan your travel dates for your flight from Seattle to Oslo. June is the busiest month to travel to Oslo. If you like a more relaxed vibe, go in February.

  • The warmest month in Oslo is July, with temperatures ranging between 8ºC (46ºF) and 25ºC (77ºF). Lock in your Seattle to Oslo ticket then if that's your idea of comfortable weather.

  • January has average temperatures of between -14ºC (7ºF) and 1ºC (34ºF). Search for cheap flights from Seattle to Oslo around that time if you want to travel when it's cooler.

More about Oslo

  • When it comes to searching for somewhere to rest your head, you'll find the best places to stay in Oslo right here. Explore these options after locking in your flight from Seattle to Oslo:

  • Viking Ship Museum and The Norwegian National Opera & Ballet are just two of the top-rated attractions to add to your Oslo travel itinerary. Keep the momentum going by heading to Akershus Fortress.

Explore more of Norway

  • You've done Oslo, now it's time to explore more of Norway. Journey around 306 kilometres west to Bergen to check off its must-visit sights. From Bryggen to Troldhaugen and Fish Market, you've got a jam-packed schedule ahead.

  • If you're eager to discover another well-known destination in Norway, head for Trondheim, roughly 386 kilometres north of Oslo. Kristiansten Fortress, Ringve Museum and Old Town Bridge are the start of reasons to visit.

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