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Cheap flights from Seattle to Oslo Gardermoen Airport from C$ 280

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
22 Apr — 29 Apr1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo Gardermoen are usually found in November or January, booked 43 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap 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 17 April 2025.

Round-trip from

C$ 721

One-way from

C$ 280

Popular in

June

Cheapest in

November

Average price

C$ 808
Icelandair
  • Icelandair
  • 27/4-6/5
  • 2 total stops
  • 27h 15m total
  • Seattle to Oslo
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Icelandair
  • Icelandair
  • 14/9
  • 1 total stop
  • 14h 40m total
  • Seattle to Oslo
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 374 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Seattle to Oslo Gardermoen

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 17 April 2025.

Thu 24/47:00 p.m.SEA - OSL
1 stop11h 25mIcelandair
Wed 30/41:50 p.m.OSL - SEA
1 stop13h 00mIcelandair
Deal found 17/4C$ 711
Thu 4/1211:05 a.m.SEA - OSL
2 stops27h 40mUnited Airlines
Mon 15/1211:50 a.m.OSL - SEA
1 stop34h 30mUnited Airlines
Deal found 17/4C$ 760
Wed 30/71:30 p.m.SEA - OSL
1 stop13h 20mDelta
Thu 21/89:20 a.m.OSL - SEA
1 stop35h 15mDelta
Deal found 16/4C$ 797
Tue 20/52:20 p.m.SEA - OSL
2 stops18h 00mScandinavian Airlines
Mon 26/59:00 a.m.OSL - SEA
1 stop13h 50mScandinavian Airlines
Deal found 17/4C$ 807
Tue 5/88:20 p.m.SEA - OSL
1 stop18h 05mBritish Airways
Tue 26/87:45 a.m.OSL - SEA
1 stop19h 35mBritish Airways
Deal found 16/4C$ 819
Sat 1/113:00 p.m.SEA - OSL
1 stop15h 55mLufthansa
Sun 16/111:35 p.m.OSL - SEA
1 stop31h 35mLufthansa
Deal found 17/4C$ 839
Wed 15/101:45 p.m.SEA - OSL
2 stops38h 20mSWISS
Mon 20/101:55 p.m.OSL - SEA
2 stops37h 41mSWISS
Deal found 17/4C$ 840
Mon 12/55:13 p.m.SEA - OSL
3 stops40h 02mMultiple Airlines
Tue 20/56:35 a.m.OSL - SEA
2 stops22h 02mMultiple Airlines
Deal found 17/4C$ 907
Thu 1/52:10 p.m.SEA - OSL
1 stop13h 20mKLM
Sun 4/55:20 p.m.OSL - SEA
1 stop27h 20mKLM
Deal found 17/4C$ 1,020
Fri 25/47:00 a.m.SEA - OSL
2 stops22h 10mAustrian Airlines
Thu 1/57:30 p.m.OSL - SEA
2 stops33h 48mAustrian Airlines
Deal found 17/4C$ 1,461
Thu 1/57:10 p.m.SEA - OSL
1 stop30h 50mTurkish Airlines
Sat 3/56:40 p.m.OSL - SEA
1 stop31h 35mTurkish Airlines
Deal found 17/4C$ 1,567

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 17 April 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 27/4

7:00 p.m.-3:25 p.m.

1 stop11h 25m

Oslo Gardermoen

Tue 6/5

1:50 p.m.-8:40 p.m.

1 stop15h 50m

C$ 721

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 30/7

1:30 p.m.-11:50 a.m.

1 stop13h 20m

Oslo Gardermoen

Thu 21/8

9:20 a.m.-11:35 a.m.

1 stop35h 15m

C$ 797

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 20/5

2:20 p.m.-5:20 p.m.

2 stops18h 00m

Oslo Gardermoen

Mon 26/5

9:00 a.m.-1:50 p.m.

1 stop13h 50m

C$ 807

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 5/8

8:20 p.m.-11:25 p.m.

1 stop18h 05m

Oslo Gardermoen

Tue 26/8

7:45 a.m.-6:20 p.m.

1 stop19h 35m

C$ 819

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 13/8

12:20 a.m.-5:15 p.m.

2 stops31h 55m

Oslo Gardermoen

Wed 20/8

7:15 a.m.-11:55 a.m.

2 stops37h 40m

C$ 829

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/5

2:15 p.m.-3:40 p.m.

1 stop16h 25m

Oslo Gardermoen

Tue 20/5

6:35 a.m.-12:25 p.m.

1 stop14h 50m

C$ 853

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/5

5:13 p.m.-6:15 p.m.

3 stops40h 02m

Oslo Gardermoen

Tue 20/5

6:35 a.m.-7:37 p.m.

2 stops22h 02m

C$ 907

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 1/5

2:10 p.m.-12:30 p.m.

1 stop13h 20m

Oslo Gardermoen

Sun 4/5

5:20 p.m.-11:40 a.m.

1 stop27h 20m

C$ 1,020

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 1/5

7:10 p.m.-11:00 a.m.

1 stop30h 50m

Oslo Gardermoen

Sat 3/5

6:40 p.m.-5:15 p.m.

1 stop31h 35m

C$ 1,567

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/5

11:38 a.m.-7:15 p.m.

3 stops22h 37m

Oslo Gardermoen

Mon 19/5

12:50 p.m.-10:09 p.m.

2 stops42h 19m

C$ 2,342

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 18 results
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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?

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 11 April 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 43 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, April is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of C$ 666). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 949). 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 17 April 2025.

It’s typically best to fly out from Seattle to Oslo Gardermoen Airport in the afternoon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo Gardermoen Airport ranges from 40.0 - 90.0 mm per month. August is typically the wettest month, when rainfall can reach 90.0 mm. February is typically the driest time to visit Oslo Gardermoen Airport when rainfall is around 40.0 mm.

Temperature in Oslo Gardermoen by month

Plan your trip to Oslo Gardermoen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo Gardermoen Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -3.0 C).

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 17 April 2025.
Get a feel of what it's like to fly with Delta, KLM and SWISS from Seattle to Oslo by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,327 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,581 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Turkish Airlines
7.3
Good
3,769 reviews
Delta
8.0
Very good
7,916 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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$ 721. Other airlines that can offer you cheap pricing are Delta, from C$ 797, and Scandinavian Airlines, from C$ 807. Icelandair is 27% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Oslo Gardermoen Airport one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as C$ 280. However, be on the lookout for offers from Lufthansa and SWISS, as they are both options that can get you from Seattle to Oslo Gardermoen Airport for a low price.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of C$ 666). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of C$ 949). 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

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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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 647AverageC$ 941FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapestC$ 839AverageC$ 889FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapestC$ 888AverageC$ 935FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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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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