413 € Cheap Flights from Seattle 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? If you want to travel next month, return fares start from 416 €. 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 November.

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 found413 €
Cheapest month to flyNovember

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 413 €. 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 413 €.
As of July 2026, there are no flights flying from Seattle to Oslo.
The cheapest month to fly from Seattle to Oslo is usually November.
If you're flying from Seattle, the cheapest airport near Oslo is Oslo Gardermoen – which is 37.2 km away from the centre of Oslo. We've found flights into this airport from 413 €.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Oslo on Monday, 2 November 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 July, the average temperature is usually around 15°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 two main airports you can fly out of in Seattle. Check out your options departing from Seattle / Tacoma International Airport (SEA) or Seattle Lake Union SPB Airport (LKE) when planning your flight from Seattle to Oslo.

  • Arrive in Oslo at Oslo Gardermoen Airport (OSL) or TORP Sandefjord Airport (TRF).

  • Oslo is nine hours ahead of Seattle and is in the UTC+1 timezone.

  • For hassle-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you won't have to rush to catch your Seattle to Oslo flight.

  • Be prepared for longer queues in popular months like July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

How to find the cheapest flights from Seattle to Oslo

  • To find cheap Seattle to Oslo flights, book ahead. Airlines tend to offer lower fares when tickets first go on sale.

  • If you're willing to be flexible with your travel plans, try using the 'Whole month' search tool. It'll give you the lowest price in every month when looking for your plane ticket from Seattle to Oslo.

  • There's no need to search every day to see if prices have dropped when you set up a Price Alert. We'll tell you as soon as there's a better deal on cheap flights from Seattle to Oslo.

  • Choose your ideal arrival and departure times, airlines and number of stops by using the filters. Alternatively, sort your Seattle to Oslo flight results by 'Best,' 'Cheapest' or 'Fastest.'

Flying from Seattle

Seattle / Tacoma International Airport (SEA)

  • A stopover is the ideal opportunity to break up your trip — and perhaps even explore another city. When browsing Seattle to Oslo flights departing from Seattle / Tacoma International Airport, uncheck the 'Direct flights only' box to see where you can stop along the way. Consider one of these popular options:

    • Amsterdam Schiphol Airport (AMS)

    • Frankfurt am Main Airport (FRA)

    • Reykjavik Keflavik Airport (KEF)

  • SEA is around 19 kilometres from central Seattle. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on traffic. If you're using public transport, expect the journey time to be around 35 minutes.

  • Need a convenient hotel close to Seattle / Tacoma International Airport? If you're boarding an early flight from Seattle to Oslo, these stays will have you sleeping nice and close to your departure gate:

  • 80% of flights departing from Seattle / Tacoma International Airport touch down at their destination as planned. Given its solid on-time performance, delays are unlikely when flying out of SEA.

Arriving in Oslo

Oslo Gardermoen Airport (OSL)

  • Oslo Gardermoen Airport (OSL) to central Oslo takes around 40 minutes by car. The centre is roughly 40 kilometres away.

  • Travelling to the centre by public transport will take you around 20 minutes.

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

  • Travel at your own speed with a Oslo Gardermoen Airport rental car. Pick up your wheels from Budget, Hertz or Thrifty and experience more of Oslo and beyond.

  • Get the best deal by reserving your ride from Oslo Gardermoen Airport around three weeks before your trip.

TORP Sandefjord Airport (TRF)

  • As soon as your flight from Seattle to Oslo has hit the runway, you can reach the city centre in about 1 hour 30 minutes by car. Central Oslo is approximately 88 kilometres from TORP Sandefjord Airport (TRF).

  • If you choose to travel on public transport, the ride to the centre takes 1 hour 50 minutes or so.

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

  • Hertz, Sixt and Budget make picking up a TORP Sandefjord Airport rental car easy and quick. These trusted companies are located around or in the terminal and will get you on your way in no time.

  • Secure your first choice, not your last resort. Reserving your ride from TRF one week ahead of time often means lower prices and a wider choice of vehicles.

Best time to go to Oslo

  • September is the most popular month for flights from Seattle to Oslo. To travel when it's less crowded, head to Oslo in March.

  • 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 ideal forecast.

  • If you want cooler conditions, search for a cheap flight from Seattle to Oslo in January when temperatures average between -14ºC (7ºF) and 1ºC (34ºF).

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. Check out these options once you've booked your flight from Seattle to Oslo:

  • There are so many things to do and see in this city it can be hard to know where to begin. The Norwegian Opera and Ballet, Viking Ship Museum and The Royal Palace are top sights which should feature on any well-planned Oslo itinerary.

Explore more of Norway

  • You've seen Oslo, now it's time to explore more of Norway. Travel about 306 kilometres west to Bergen to check off its top attractions. From Fløyfjellet to Bergen? And Fløyen Panorama, your itinerary will be busy.

  • Trondheim is another essential stop in Norway and is around 386 kilometres north of Oslo. No journey is complete without experiencing Nidaros Cathedral, Nigard Glacier and Tyholttarnet.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.