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Cheap flights from Seattle to Oslo Gardermoen Airport from C$ 112

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

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 11 June 2026.

Sun 16/86:50 p.m.
SEA
-
OSL
1 stop18h 15m
United Airlines
Tue 25/86:45 a.m.
OSL
-
SEA
3 stops45h 23m
United Airlines
Deal found 7/6C$ 716
Sun 23/85:00 a.m.
SEA
-
OSL
2 stops32h 05m
United Airlines
Sun 6/96:25 a.m.
OSL
-
SEA
1 stop14h 30m
United Airlines
Deal found 7/6C$ 718
Sun 1/1110:45 p.m.
SEA
-
OSL
2 stops33h 25m
United Airlines
Tue 10/116:45 a.m.
OSL
-
SEA
2 stops23h 20m
United Airlines
Deal found 10/6C$ 719
Sat 15/87:00 p.m.
SEA
-
OSL
1 stop32h 35m
Icelandair
Thu 3/91:50 p.m.
OSL
-
SEA
1 stop13h 05m
Icelandair
Deal found 8/6C$ 722
Tue 1/93:54 p.m.
SEA
-
OSL
2 stops21h 11m
United Airlines
Mon 14/96:45 a.m.
OSL
-
SEA
2 stops25h 00m
United Airlines
Deal found 8/6C$ 723
Sat 26/910:58 p.m.
SEA
-
OSL
2 stops33h 17m
United Airlines
Sat 17/107:15 a.m.
OSL
-
SEA
1 stop18h 44m
United Airlines
Deal found 6/6C$ 725
Mon 24/85:13 p.m.
SEA
-
OSL
2 stops39h 02m
United Airlines
Sun 30/87:10 a.m.
OSL
-
SEA
1 stop18h 49m
United Airlines
Deal found 8/6C$ 726
Tue 25/85:00 a.m.
SEA
-
OSL
2 stops32h 05m
United Airlines
Thu 3/96:45 a.m.
OSL
-
SEA
2 stops47h 22m
United Airlines
Deal found 9/6C$ 728
Thu 3/98:00 a.m.
SEA
-
OSL
2 stops24h 55m
United Airlines
Fri 11/96:45 a.m.
OSL
-
SEA
2 stops25h 00m
United Airlines
Deal found 8/6C$ 729
Tue 1/93:54 p.m.
SEA
-
OSL
2 stops17h 06m
United Airlines
Mon 7/96:45 a.m.
OSL
-
SEA
2 stops35h 51m
United Airlines
Deal found 8/6C$ 732

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 11 June 2026.

Round-trip from

C$ 716

One-way from

C$ 112

Popular in

June

Cheapest in

January

Average price

C$ 1,017
United Airlines
  • United Airlines
  • 16/8-25/8
  • 4 total stops
  • 63h 38m total
  • Seattle to Oslo
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 23/8
  • 1 total stop
  • 11h 50m total
  • Seattle to Oslo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 154 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
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 11 June 2026.
Use the filters below to find and compare flights from Seattle to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 23/8

5:00 a.m.-10:05 p.m.

2 stops32h 05m

Oslo Gardermoen

Sun 6/9

6:25 a.m.-11:55 a.m.

1 stop14h 30m

C$ 718

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 21/8

2:34 p.m.-10:05 p.m.

2 stops22h 31m

Oslo Gardermoen

Sun 30/8

7:10 a.m.-9:15 p.m.

2 stops23h 05m

C$ 721

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 24/8

11:00 p.m.-5:15 p.m.

2 stops33h 15m

Oslo Gardermoen

Sun 6/9

6:25 a.m.-7:07 p.m.

2 stops21h 42m

C$ 744

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 23/10

6:50 p.m.-10:05 p.m.

1 stop18h 15m

Oslo Gardermoen

Tue 27/10

6:15 a.m.-2:00 p.m.

2 stops39h 45m

C$ 758

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 16/9

9:50 p.m.-8:40 p.m.

1 stop13h 50m

Oslo Gardermoen

Fri 25/9

6:30 a.m.-4:17 p.m.

2 stops18h 47m

C$ 838

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/8

1:50 p.m.-3:25 p.m.

1 stop16h 35m

Oslo Gardermoen

Thu 13/8

8:00 a.m.-4:27 p.m.

1 stop17h 27m

C$ 856
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 21/7

5:40 p.m.-4:20 p.m.

1 stop13h 40m

Oslo Gardermoen

Fri 7/8

6:30 a.m.-11:37 a.m.

1 stop14h 07m

C$ 859

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 2/8

6:50 p.m.-10:05 p.m.

1 stop18h 15m

Oslo Gardermoen

Fri 21/8

6:25 a.m.-10:42 p.m.

2 stops25h 17m

C$ 866

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 1/11

10:45 a.m.-5:10 p.m.

3 stops45h 25m

Oslo Gardermoen

Tue 10/11

6:45 a.m.-9:05 p.m.

2 stops23h 20m

C$ 895
Cheapest one-way

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 23/8

6:35 p.m.-3:25 p.m.

1 stop11h 50m

C$ 155

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 21 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Seattle to Oslo Gardermoen Airport?

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 86 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$ 588). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 1,017). 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.

How much does it cost to fly round-trip from Seattle to Oslo Gardermoen Airport?

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 11 June 2026.
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.
KLM
7.8
Good
1,527 reviews
Check prices

Overall

7.8

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Overall

7.8

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Scandinavian Airlines
7.4
Good
1,818 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Overall

7.8

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
672 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Overall

7.8

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 3 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?

    United Airlines can get you from Seattle to Oslo Gardermoen Airport in just under 32h 05m. Your travel time can differ by up to . There are 7324 km between Seattle and Oslo Gardermoen Airport.

  • 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$ 584. Other airlines that can offer you cheap pricing are KLM, from C$ 600, and Scandinavian Airlines, from C$ 717. Icelandair is 24% 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$ 588). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 1,017). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Seattle to Oslo Gardermoen

Discover the top 3 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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 584AverageC$ 678FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapestC$ 600AverageC$ 600FlexibilityNo cancel feeOn-time75%
Search KLM flights
Scandinavian AirlinesCheapestC$ 717AverageC$ 771FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

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.

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