C$266 Cheap Flights from Seattle (SEAA) to Oslo (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 C$687. 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 April.

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 foundC$266
Cheapest month to flyApril

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 C$623. 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 C$623.
As of April 2026, there are no flights flying from Seattle to Oslo.
The cheapest month to fly from Seattle to Oslo is usually April.
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 C$623.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Oslo on Monday, April 20, 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 April, the average temperature is usually around 3°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

  • Start your vacation planning by considering where you'll take off for your flight from Seattle to Oslo. Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base (LKE) are the two main airports in Seattle.

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

  • Leave plenty of time to make your flight from Seattle to Oslo. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months like July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're travelling during high season in general.

  • If you have a passport from United States and plan to travel to Norway for tourism purposes, you won't need a visa. However, visa and entry requirements may vary based on the length and purpose of your stay and can be subject to change. For the latest information, check with your destination's nearest embassy or consulate before reserving a cheap flight from Seattle to Oslo.

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it a piece of cake to book a flight from Seattle to Oslo with a stopover. To see all your options leaving from Seattle-Tacoma International Airport, uncheck 'Direct flights only.' Next, select a flight that has a stop long enough to see the sights of the city of your choice. Some popular stopovers include:

    • Amsterdam Airport Schiphol Airport (AMS)

    • Frankfurt Airport (FRA)

    • Keflavik International Airport (KEF)

  • Located around 23 kilometres from the centre of Seattle, SEA can be reached in approximately 18 minutes by car, depending on traffic. The journey on public transport is roughly 54 minutes.

  • Want a convenient hotel close to Seattle-Tacoma International Airport? If you're catching an early flight from Seattle to Oslo, these stays will put you moments from your departure gate:

Lake Union Sea Plane Base Airport (LKE)

  • Visit friends or family or just take some time to unwind with a stopover. If you'd like to split up your flight from Seattle to Oslo, browse these options when setting off from Seattle-Tacoma International Airport:

    • Amsterdam Airport Schiphol Airport (AMS)

    • Frankfurt Airport (FRA)

    • Keflavik International Airport (KEF)

  • You can get to LKE from the centre of Seattle in about 11 minutes by car, depending on traffic conditions. The journey on public transport takes roughly 23 minutes to travel the 3 kilometres or so.

  • Want to treat yourself to an extra night away before boarding your flight from Seattle to Oslo? Unwind in a hotel near Lake Union Sea Plane Base Airport before your vacation officially begins. Consider one of these stays:

Arriving in Oslo

Oslo Airport Gardermoen Airport (OSL)

Torp Sandefjord Airport (TRF)

How to find the cheapest flights from Seattle to Oslo

  • The lowest price we've seen for a one-way ticket from Seattle to Oslo is C$266. For a return flight on this route, the best price is C$623. Depending on the availability when you book, these fares could change.

  • Don't leave things to the last minute. You're more likely to get cheap flights from Seattle to Oslo if you book in advance. Airlines often have some amazing early bird deals.

  • The 'Whole month' search function shows you the cheapest tickets from Seattle to Oslo throughout the month. It's an easy way to find a bargain if your travel plans are flexible.

  • Set up a Price Alert for cheap flights from Seattle to Oslo. There's no need to check back in every day to see whether prices have fallen. We'll update you the moment there's a change in price.

  • Use filters to tailor your flights from Seattle to Oslo. Simply enter your ideal departure and arrival times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to see the best deals.

Best time to go to Oslo

  • It's time to work out your travel dates for your flight from Seattle to Oslo. June is the most popular month for a trip to Oslo. If you prefer a more relaxed atmosphere, go in February.

  • The warmest month in Oslo is July, with temperatures ranging between 8ºC and 25ºC. Lock in your flights from Seattle to Oslo in this month if this is the type of weather you enjoy.

  • If you want cooler conditions, book a cheap ticket from Seattle to Oslo in January when temperatures average between -14ºC and 1ºC.

More about Oslo

  • After booking your flight from Seattle to Oslo, think about where you'll stay in this city. Make one of these accommodation options your base for exploring Oslo:

  • There are so many things to do and see in this city it can be hard to figure out where to begin. Viking Ship Museum, The Norwegian National Opera & Ballet and Akershus Fortress are major attractions which should be on every Oslo itinerary.

Complete your Oslo trip with a car rental

  • Browse our lineup of car rentals once you've booked your hotel and cheap flight from Seattle to Oslo. Whether you're searching for an economy ride, a standard vehicle or something with all the extras, you can easily compare companies in one go to find the best deal.

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