CA $281 Cheap Flights from Seattle (SEA) to Oslo (OSL)

View CA $281 flight on Thu, Dec 10, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Gardermoen Airport (OSL)

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Cheap flights from Seattle (SEA) to Oslo (OSL)

Prices were available within the past 7 days and start at CA $281 for one-way flights and CA $649 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, Dec 10 - Thu, Dec 17
SEA
Seattle
OSL
Oslo
CA $649 Roundtrip, found 1 day ago
CA $649
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Dec 10 from Seattle to Oslo, returning Thu, Dec 17, priced at CA $649 found 1 day ago
United
Thu, Oct 22 - Sun, Nov 1
SEA
Seattle
OSL
Oslo
CA $668 Roundtrip, found 1 day ago
CA $668
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from Seattle to Oslo, returning Sun, Nov 1, priced at CA $668 found 1 day ago
United
Fri, Nov 13 - Tue, Nov 24
SEA
Seattle
OSL
Oslo
CA $677 Roundtrip, found 1 day ago
CA $677
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 13 from Seattle to Oslo, returning Tue, Nov 24, priced at CA $677 found 1 day ago
United
Fri, Nov 13 - Tue, Nov 24
SEA
Seattle
OSL
Oslo
CA $681 Roundtrip, found 1 day ago
CA $681
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 13 from Seattle to Oslo, returning Tue, Nov 24, priced at CA $681 found 1 day ago
Icelandair
Sat, Oct 24 - Mon, Nov 2
SEA
Seattle
OSL
Oslo
CA $683 Roundtrip, found 1 day ago
CA $683
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sat, Oct 24 from Seattle to Oslo, returning Mon, Nov 2, priced at CA $683 found 1 day ago
Lufthansa
Sun, May 10 - Wed, Jun 10
SEA
Seattle
OSL
Oslo
CA $684 Roundtrip, found 11 hours ago
CA $684
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sun, May 10 from Seattle to Oslo, returning Wed, Jun 10, priced at CA $684 found 11 hours ago
Delta
Fri, Nov 13 - Tue, Nov 24
SEA
Seattle
OSL
Oslo
CA $701 Roundtrip, found 1 day ago
CA $701
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Nov 13 from Seattle to Oslo, returning Tue, Nov 24, priced at CA $701 found 1 day ago
Air France
Fri, Nov 13 - Tue, Nov 24
SEA
Seattle
OSL
Oslo
CA $701 Roundtrip, found 1 day ago
CA $701
Roundtrip
found 1 day ago
Select Air France flight, departing Fri, Nov 13 from Seattle to Oslo, returning Tue, Nov 24, priced at CA $701 found 1 day ago
Air Canada
Thu, Sep 10 - Thu, Sep 17
SEA
Seattle
OSL
Oslo
CA $710 Roundtrip, found 1 day ago
CA $710
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Sep 10 from Seattle to Oslo, returning Thu, Sep 17, priced at CA $710 found 1 day ago
KLM
Fri, Nov 13 - Tue, Nov 24
SEA
Seattle
OSL
Oslo
CA $716 Roundtrip, found 1 day ago
CA $716
Roundtrip
found 1 day ago
Select KLM flight, departing Fri, Nov 13 from Seattle to Oslo, returning Tue, Nov 24, priced at CA $716 found 1 day ago

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) cost?
One-way flights typically cost between $630 and $11,312 and return flights often range between $2,791 and $17,102. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
There are approximately 83 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Gardermoen (OSL). Some common connection points include O'Hare Intl. (ORD), Vancouver Intl. (YVR), and Pearson Intl. (YYZ).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Gardermoen (OSL) typically departs at approximately 12:10 AM local time. This service is operated by American Airlines and British Airways. This is a seasonal service active in December. An early departure like this can help you maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
You'll typically find the most flights from Seattle - Tacoma Intl. (SEA) to Oslo (OSL) on a Monday, with around 77 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, United Airlines, and American Airlines. Flight options are notably more on Mondays, Thursdays, and Wednesdays compared to other days of the week.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Gardermoen (OSL) are in the afternoon, from 12pm to 3pm. About 31 CAD% of passengers prefer this time window. Many major carriers, including Lufthansa, United Airlines and British Airways, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in Oslo in the morning, ready to start your day.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
A flight from SEA to OSL with a layover takes around 19 hours 50 minutes, with the route covering approximately 4,554 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
Select the "Business class" and "First class" filters when looking for SEA to OSL flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Oslo from Seattle - Tacoma Intl. (SEA)?
From Seattle - Tacoma Intl. (SEA), you can fly into Gardermoen (OSL) to reach Oslo. Some flights may connect through major hubs like O'Hare Intl. (ORD), Vancouver Intl. (YVR), Washington Dulles Intl. (IAD) before reaching Oslo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Gardermoen
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
CA $648
Distance
7285 km

Book with confidence

Seattle to Oslo Flights

The easy way to book your flights from Seattle to Oslo 

With Expedia, it’s simple to find and book flights to Oslo from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Gardermoen, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Oslo today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Gardermoen, OSL 

Sort your search results by price to find great deals on your flight from Seattle to Oslo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Oslo from Seattle currently is just CA $649 rising to CA $716.  

Here are more money-saving tips: 

  • Fly in December when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Oslo  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Oslo from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Oslo with Expedia today.

Seattle to Oslo Flights

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*Available to Expedia members.