Cheap flights from Seattle to Oslo Gardermoen Airport from C$ 560
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
11 Jan — 18 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo Gardermoen are usually found in January or November, booked 76 days in advance, depart on a Monday or Wednesday and return on a Monday
Cheap flight deals from Seattle to Oslo Gardermoen
Enter your travel dates to find the best prices.
Cheapest flights from Seattle to Oslo Gardermoen
Explore the most affordable flight options available from Seattle to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.
Mon 29/123:05 p.m.SEA - OSL
1 stop20h 55mKLM
Tue 13/19:25 a.m.OSL - SEA
1 stop35h 25mKLM
Deal found 11/12C$ 721
Wed 10/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Mon 12/17:50 a.m.OSL - SEA
1 stop15h 59mDelta
Deal found 10/12C$ 743
Wed 10/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Sun 11/112:40 p.m.OSL - SEA
2 stops36h 55mDelta
Deal found 10/12C$ 786
Thu 11/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Mon 12/17:50 a.m.OSL - SEA
1 stop15h 59mDelta
Deal found 10/12C$ 794
Wed 10/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Sat 10/11:05 p.m.OSL - SEA
2 stops43h 17mDelta
Deal found 10/12C$ 800
Thu 11/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Sun 11/112:40 p.m.OSL - SEA
2 stops36h 55mDelta
Deal found 10/12C$ 837
Thu 11/123:05 p.m.SEA - OSL
1 stop16h 10mDelta
Sat 10/11:05 p.m.OSL - SEA
2 stops43h 17mDelta
Deal found 10/12C$ 851
Mon 29/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Tue 13/19:25 a.m.OSL - SEA
2 stops22h 00mDelta
Deal found 10/12C$ 869
Wed 10/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Fri 9/112:40 p.m.OSL - SEA
1 stop32h 10mDelta
Deal found 10/12C$ 986
Wed 10/123:05 p.m.SEA - OSL
1 stop18h 10mDelta
Thu 8/16:30 a.m.OSL - SEA
2 stops17h 19mDelta
Deal found 10/12C$ 990
Best flights from Seattle to Oslo Gardermoen
Discover carefully curated flight deals from Seattle to Oslo Gardermoen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.
Sun 19/48:20 p.m.SEA - OSL
1 stop18h 20mBritish Airways
Thu 23/411:40 a.m.OSL - SEA
1 stop15h 45mBritish Airways
Deal found 10/12C$ 672
Sat 25/411:59 p.m.SEA - OSL
2 stops32h 16mUnited Airlines
Wed 20/57:15 a.m.OSL - SEA
1 stop18h 44mUnited Airlines
Deal found 11/12C$ 712
Wed 4/38:00 a.m.SEA - OSL
2 stops20h 50mDelta
Sat 14/36:30 a.m.OSL - SEA
2 stops18h 39mDelta
Deal found 10/12C$ 712
Mon 29/123:05 p.m.SEA - OSL
1 stop20h 55mKLM
Tue 13/19:25 a.m.OSL - SEA
1 stop35h 25mKLM
Deal found 11/12C$ 721
Fri 1/58:00 a.m.SEA - OSL
2 stops25h 00mUnited Airlines
Fri 29/511:45 a.m.OSL - SEA
1 stop14h 14mUnited Airlines
Deal found 11/12C$ 717
Wed 7/17:15 a.m.SEA - OSL
2 stops19h 35mDelta
Tue 31/36:30 a.m.OSL - SEA
1 stop14h 05mDelta
Deal found 11/12C$ 728
Sun 11/13:10 p.m.SEA - OSL
1 stop17h 30mUnited Airlines
Mon 26/16:15 a.m.OSL - SEA
3 stops23h 57mUnited Airlines
Deal found 10/12C$ 717
Sun 19/411:59 p.m.SEA - OSL
2 stops32h 16mUnited Airlines
Thu 23/46:35 a.m.OSL - SEA
1 stop14h 45mUnited Airlines
Deal found 10/12C$ 724
Wed 25/38:59 a.m.SEA - OSL
2 stops24h 41mUnited Airlines
Fri 3/411:45 a.m.OSL - SEA
2 stops20h 51mUnited Airlines
Deal found 9/12C$ 727
Last-minute flights from Seattle to Oslo Gardermoen
Discover last-minute flight deals from Seattle to Oslo Gardermoen. Data last updated 12 December 2025 and is based on user searches.
Mon 29/123:05 p.m.SEA - OSL
1 stop20h 55mKLM
Tue 13/19:25 a.m.OSL - SEA
1 stop35h 25mKLM
Deal found 11/12C$ 721
Mon 5/18:00 a.m.SEA - OSL
2 stops24h 30mUnited Airlines
Tue 31/36:45 a.m.OSL - SEA
1 stop14h 35mUnited Airlines
Deal found 11/12C$ 739
Wed 7/17:15 a.m.SEA - OSL
2 stops19h 35mDelta
Wed 1/49:20 a.m.OSL - SEA
1 stop15h 30mDelta
Deal found 11/12C$ 728
Wed 7/17:15 a.m.SEA - OSL
2 stops19h 35mDelta
Thu 2/42:10 p.m.OSL - SEA
2 stops28h 51mDelta
Deal found 11/12C$ 742
Thu 8/112:25 p.m.SEA - OSL
2 stops18h 15mUnited Airlines
Thu 15/16:15 a.m.OSL - SEA
3 stops25h 28mUnited Airlines
Deal found 10/12C$ 741
Sun 11/13:10 p.m.SEA - OSL
1 stop17h 30mUnited Airlines
Mon 26/16:15 a.m.OSL - SEA
3 stops23h 57mUnited Airlines
Deal found 10/12C$ 717
Thu 22/12:10 p.m.SEA - OSL
2 stops18h 30mUnited Airlines
Sun 8/26:05 a.m.OSL - SEA
3 stops25h 38mUnited Airlines
Deal found 11/12C$ 724
Sat 24/111:30 a.m.SEA - OSL
2 stops19h 50mDelta
Sat 31/16:30 a.m.OSL - SEA
1 stop14h 20mDelta
Deal found 9/12C$ 709
Sat 24/18:10 a.m.SEA - OSL
2 stops17h 50mUnited Airlines
Sat 31/11:50 p.m.OSL - SEA
3 stops41h 53mUnited Airlines
Deal found 9/12C$ 738
One-way flights from Seattle to Oslo Gardermoen
Search for one-way flight options from Seattle to Oslo Gardermoen. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.
Thu 8/12:00 p.m.SEA - OSL
1 stop14h 00mLufthansa
Deal found 10/12C$ 560
Thu 8/19:00 a.m.SEA - OSL
2 stops23h 40mUnited Airlines
Deal found 10/12C$ 561
Wed 7/13:10 p.m.SEA - OSL
1 stop17h 30mLufthansa
Deal found 11/12C$ 563
Wed 7/17:00 a.m.SEA - OSL
2 stops25h 10mUnited Airlines
Deal found 11/12C$ 585
Mon 5/18:00 a.m.SEA - OSL
2 stops24h 30mUnited Airlines
Deal found 11/12C$ 590
Tue 6/15:10 p.m.SEA - OSL
2 stops39h 30mUnited Airlines
Deal found 11/12C$ 601
Sun 4/111:15 p.m.SEA - OSL
2 stops33h 15mUnited Airlines
Deal found 11/12C$ 622
Sat 10/12:00 p.m.SEA - OSL
1 stop14h 05mLufthansa
Deal found 10/12C$ 663
Thu 1/13:10 p.m.SEA - OSL
1 stop32h 30mKLM
Deal found 11/12C$ 703
Sat 3/15:02 a.m.SEA - OSL
2 stops42h 43mUnited Airlines
Deal found 11/12C$ 707
Find flight deals from Seattle to Oslo Gardermoen
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Oslo Gardermoen (OSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Customize your flight search to find flights from Seattle to Oslo Gardermoen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Seattle to Oslo Gardermoen Airport that are best for you.
Fly from
Seattle
Fly to
Oslo Gardermoen
Route
Depart
Return
Price
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sun 19/4
8:20 p.m.-11:40 p.m.
1 stop18h 20m
Oslo Gardermoen
Thu 23/4
11:40 a.m.-6:25 p.m.
1 stop15h 45m
C$ 672
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sat 25/4
11:59 p.m.-5:15 p.m.
2 stops32h 16m
Oslo Gardermoen
Wed 20/5
7:15 a.m.-4:59 p.m.
1 stop18h 44m
C$ 712
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Wed 4/3
8:00 a.m.-1:50 p.m.
2 stops20h 50m
Oslo Gardermoen
Sat 14/3
6:30 a.m.-5:09 p.m.
2 stops18h 39m
C$ 712
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Fri 1/5
8:00 a.m.-6:00 p.m.
2 stops25h 00m
Oslo Gardermoen
Fri 29/5
11:45 a.m.-4:59 p.m.
1 stop14h 14m
C$ 717
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sun 11/1
3:10 p.m.-5:40 p.m.
1 stop17h 30m
Oslo Gardermoen
Mon 26/1
6:15 a.m.-9:12 p.m.
3 stops23h 57m
C$ 717
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Mon 29/12
3:05 p.m.-9:00 p.m.
1 stop20h 55m
Oslo Gardermoen
Tue 13/1
9:25 a.m.-11:50 a.m.
1 stop35h 25m
C$ 721
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sun 19/4
11:59 p.m.-5:15 p.m.
2 stops32h 16m
Oslo Gardermoen
Thu 23/4
6:35 a.m.-12:20 p.m.
1 stop14h 45m
C$ 724
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Wed 25/3
8:59 a.m.-5:40 p.m.
2 stops24h 41m
Oslo Gardermoen
Fri 3/4
11:45 a.m.-11:36 p.m.
2 stops20h 51m
C$ 727
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Wed 7/1
7:15 a.m.-11:50 a.m.
2 stops19h 35m
Oslo Gardermoen
Tue 31/3
6:30 a.m.-11:35 a.m.
1 stop14h 05m
C$ 728
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Thu 8/1
9:00 a.m.-5:40 p.m.
2 stops23h 40m
C$ 561
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/12
Showing 1-10 of 21 results
1
2
3
Best time to book a flight from Seattle to Oslo Gardermoen
Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Oslo Gardermoen Airport
Prices
More
How far ahead should I book a flight from Seattle to Oslo Gardermoen Airport?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Oslo Gardermoen. Price data was last updated on 5 December 2025.
The price you pay for your flight from Seattle to Oslo Gardermoen Airport may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to Oslo Gardermoen Airport?
Currently, January is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of C$ 469). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 741). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to OSL?
Find hourly flight availability from Seattle to Oslo Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
It’s typically best to fly out from Seattle to Oslo Gardermoen Airport in the evening. Doing so could potentially save you 31% on the flight price compared to flying at noon, which is usually more expensive.
How much does it cost to fly round-trip from Seattle to Oslo Gardermoen Airport?
What’s the top layover airport for flights from Seattle to Oslo Gardermoen Airport?
Share of one-stop round-trip flights from Seattle to Oslo Gardermoen Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 41% of one-stop itineraries from Seattle to Oslo Gardermoen Airport on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Oslo Gardermoen Airport?
Average round-trip fare for 1-stop flights from Seattle to Oslo Gardermoen Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
London (LHR) is the most affordable 1-stop option, with an average round-trip price of C$ 597.
What’s the fastest layover option from Seattle to Oslo Gardermoen Airport?
Shortest average travel time for 1-stop one-way flights from Seattle to Oslo Gardermoen Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 11h 59m.
Which airport typically offers the quickest layover for flights from Seattle to Oslo Gardermoen Airport?
Average layover duration for 1-stop one-way flights from Seattle to Oslo Gardermoen Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Copenhagen (CPH) offer the fastest connection on this route, with an average layover time of 1h 10m.
Reviews of airlines servicing Oslo Gardermoen
Get insights into the airlines that provide service to Oslo Gardermoen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oslo Gardermoen. Reviews last updated 12 December 2025.
Get a feel of what it's like to fly with KLM,Scandinavian Airlines, andIcelandair from Seattle to Oslo Gardermoen Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Not literally sitting in the very last row in the middle
Related info for your journey
Find useful and relevant information for your journey from Seattle to Oslo Gardermoen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Seattle to Oslo Gardermoen?
Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Oslo Gardermoen. You should not have trouble finding flights to Oslo Gardermoen from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Oslo Gardermoen per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Seattle airport to Oslo Gardermoen. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.
How long is the flight from Seattle to Oslo Gardermoen Airport?
British Airways, United Airlines, and Delta can get you from Seattle to Oslo Gardermoen Airport in just under 18h 20m. Your travel time can differ by up to 13h 56m. There are 7324 km between Seattle and Oslo Gardermoen Airport. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Seattle to Oslo Gardermoen Airport round-trip?
Cheapflights users have booked flights from Seattle to Oslo Gardermoen Airport round-trip from C$ 578. Other airlines that can offer you cheap pricing are KLM, from C$ 594, and Scandinavian Airlines, from C$ 710. Icelandair is 30% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from Seattle to Oslo Gardermoen that include hotel bookings?
Yes. In addition to deals on Seattle to Oslo Gardermoen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Oslo Gardermoen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Oslo Gardermoen.
Can I find deals for business class flights from Seattle to Oslo Gardermoen?
Yes. Cheapflights offers flight deals from Seattle to Oslo Gardermoen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Oslo Gardermoen Airport?
Currently, January is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of C$ 469). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 741). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Oslo Gardermoen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Top 4 airlines flying from Seattle to Oslo Gardermoen
Discover the top 4 airlines that operate flights from Seattle to Oslo Gardermoen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seattle to Oslo Gardermoen?
When you search for this flight from Seattle to Oslo Gardermoen, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Oslo Gardermoen?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Oslo Gardermoen from Seattle.
Can Cheapflights find flights from Seattle to Oslo Gardermoen with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Oslo Gardermoen, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Seattle to Oslo Gardermoen become cheaper?
Yes, Cheapflights offers price alerts on Seattle to Oslo Gardermoen flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.