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Oslo Gardermoen

$357+ Cheap flights from Seattle (SEA) to Oslo Gardermoen (OSL)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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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 Tuesday or Monday and return on a Saturday

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 abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$411
(oojo)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$583
Provider with most accurate pricing for Seattle/Tacoma Intl-Oslo Gardermoen flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Oslo Gardermoen flights.
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From Seattle/Tacoma Intl to Oslo Gardermoen
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One-way flight from Seattle/Tacoma Intl to Oslo Gardermoen
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Highest demand for flights based on searches. 21% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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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 abril 17, 2025.

This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/93:45 pmSEA - OSL
1 stop11h 50mIcelandair
jue. 11/201:05 pmOSL - SEA
1 stop12h 55mIcelandair
Deal found 4/16$411
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/284:10 pmSEA - OSL
1 stop17h 45mMultiple Airlines
vie. 11/76:20 amOSL - SEA
2 stops36h 30mMultiple Airlines
Deal found 4/16$533
This Air Canada deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2811:35 amSEA - OSL
2 stops40h 35mAir Canada
vie. 11/76:20 amOSL - SEA
2 stops21h 05mAir Canada
Deal found 4/16$538
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/284:10 pmSEA - OSL
1 stop17h 45mLufthansa
vie. 11/76:00 amOSL - SEA
1 stop16h 20mLufthansa
Deal found 4/16$544
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:00 amSEA - OSL
2 stops31h 45mUnited Airlines
lun. 12/1511:50 amOSL - SEA
1 stop34h 30mUnited Airlines
Deal found 4/16$549
This Flightnetwork deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/214:00 pmSEA - OSL
1 stop12h 00mScandinavian Airlines
mié. 5/289:00 amOSL - SEA
1 stop13h 50mScandinavian Airlines
Deal found 4/17$550
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/115:40 pmSEA - OSL
1 stop13h 55mAmerican Airlines
vie. 8/221:10 pmOSL - SEA
2 stops20h 34mAmerican Airlines
Deal found 4/17$558
This British Airways deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/71:30 pmSEA - OSL
1 stop20h 45mBritish Airways
mié. 5/145:05 pmOSL - SEA
1 stop27h 30mBritish Airways
Deal found 4/15$564
This Air France deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/61:35 pmSEA - OSL
1 stop17h 50mAir France
mar. 11/116:20 amOSL - SEA
1 stop14h 00mAir France
Deal found 4/15$565
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/301:30 pmSEA - OSL
1 stop13h 20mDelta
mar. 8/266:30 amOSL - SEA
1 stop14h 05mDelta
Deal found 4/16$575
This SWISS deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/151:45 pmSEA - OSL
2 stops38h 20mSWISS
lun. 10/201:55 pmOSL - SEA
2 stops37h 41mSWISS
Deal found 4/17$606
This KLM deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/116:07 pmSEA - OSL
1 stop17h 48mKLM
dom. 5/185:20 pmOSL - SEA
1 stop27h 20mKLM
Deal found 4/16$684

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 2,558,603 searches. Data last updated abril 17, 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

jue. 10/9

3:45 pm-12:35 pm

1 stop11h 50m

Oslo Gardermoen

jue. 11/20

1:05 pm-5:00 pm

1 stop12h 55m

$411

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 5/12

5:30 am-6:05 pm

2 stops27h 35m

Oslo Gardermoen

lun. 5/19

6:45 am-7:37 pm

2 stops21h 52m

$548

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 5/21

4:00 pm-1:00 pm

1 stop12h 00m

Oslo Gardermoen

mié. 5/28

9:00 am-1:50 pm

1 stop13h 50m

$550

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 5/12

5:30 am-6:05 pm

2 stops27h 35m

Oslo Gardermoen

lun. 5/19

5:40 am-7:37 pm

2 stops22h 57m

$557

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 8/11

5:40 pm-4:35 pm

1 stop13h 55m

Oslo Gardermoen

vie. 8/22

1:10 pm-12:44 am

2 stops20h 34m

$558

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 5/7

1:30 pm-7:15 pm

1 stop20h 45m

Oslo Gardermoen

mié. 5/14

5:05 pm-11:35 am

1 stop27h 30m

$564

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 7/30

1:30 pm-11:50 am

1 stop13h 20m

Oslo Gardermoen

mar. 8/26

6:30 am-11:35 am

1 stop14h 05m

$575

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 8/13

12:20 am-5:15 pm

2 stops31h 55m

Oslo Gardermoen

mié. 8/20

7:15 am-11:55 am

2 stops37h 40m

$598

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 5/12

2:15 pm-3:40 pm

1 stop16h 25m

Oslo Gardermoen

mar. 5/20

6:35 am-12:25 pm

1 stop14h 50m

$615

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

dom. 5/11

6:07 pm-8:55 pm

1 stop17h 48m

Oslo Gardermoen

dom. 5/18

5:20 pm-11:40 am

1 stop27h 20m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 21 results
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Compare providers for flights from Seattle to Oslo Gardermoen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Oslo Gardermoen in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Oslo Gardermoen Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Oslo Gardermoen Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Oslo Gardermoen Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Oslo Gardermoen Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Oslo Gardermoen Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 April 11, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Oslo Gardermoen Airport, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Oslo Gardermoen Airport?

Currently, November is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of $567). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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 abril 17, 2025.

It’s optimal to fly from Seattle to Oslo Gardermoen Airport in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Seattle to Oslo Gardermoen Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Oslo Gardermoen. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Oslo Gardermoen Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo Gardermoen Airport when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 abril 17, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Seattle to Oslo have to say. 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

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.
Scandinavian Airlines
7.3
Good
1,335 reviews
Delta
8.0
Very good
7,916 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Oslo Gardermoen from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Oslo Gardermoen should be relatively easy as there are 0 daily outbound flights to Oslo Gardermoen from 10 different airlines.

  • What are the cheapest airlines flying from Seattle to Oslo Gardermoen Airport round-trip?

    Currently priced at $411, Icelandair will fly you from Seattle to Oslo Gardermoen Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and Air Canada - these airlines can fly you to your destination from $550 and $557, respectively. Icelandair is 42% 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?

    One-way options have recently been found by users for as low as $418 on Icelandair. Other airlines that offer cheap prices include Lufthansa from $458 and Delta from $468 one-way.

  • 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, November is the cheapest month in which you can book a flight from Seattle to Oslo Gardermoen Airport (average of $567). Flying from Seattle to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,101). 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.

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Alternative routes for Seattle to Oslo Gardermoen

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Sandefjord flights
Portland to Oslo Gardermoen flights
Portland to Sandefjord flights
Spokane to Oslo Gardermoen flights
Spokane to Sandefjord flights

Top 10 airlines flying from Seattle to Oslo Gardermoen

Discover the top 10 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 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$448Average$720FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$473Average$663FlexibilityNo cancel feeOn-time70%
FinnairCheapest$484Average$748FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$494Average$902FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$694FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$570Average$836FlexibilityNo cancel feeOn-time69%
DeltaCheapest$573Average$815FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$590Average$885FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$1,001FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$596Average$940FlexibilityNo cancel feeOn-time76%

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