Oslo Gardermoen

$301+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Feb 15 — Feb 221
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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 February 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$419
(Flightnetwork)

One-way from

$301
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$698
Provider with most accurate pricing for Seattle/Tacoma Intl-Oslo Gardermoen flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Oslo Gardermoen flights.
From Seattle/Tacoma Intl to Oslo Gardermoen
One-way flight from Seattle/Tacoma Intl to Oslo Gardermoen
Highest demand for flights based on searches. 26% potential increase in price ($272 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).
Average for round-trip flights in February 2025

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 February 10, 2025.

This Flightnetwork deal was found by Cheapflights users on 2/10. 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.
Mon 4/73:45 pmSEA - OSL
1 stop11h 50mIcelandair
Mon 4/214:20 pmOSL - SEA
1 stop13h 20mIcelandair
Deal found 2/10$419
This Booking.com deal was found by Cheapflights users on 2/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/107:50 pmSEA - OSL
1 stop18h 50mBritish Airways
Tue 3/1811:40 amOSL - SEA
1 stop14h 15mBritish Airways
Deal found 2/9$521
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 3/267:50 pmSEA - OSL
1 stop18h 50mAmerican Airlines
Wed 4/27:40 amOSL - SEA
1 stop19h 40mAmerican Airlines
Deal found 2/9$524
This Finnair deal was found by Cheapflights users on 2/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/257:50 pmSEA - OSL
1 stop18h 50mFinnair
Tue 4/87:45 amOSL - SEA
2 stops20h 21mFinnair
Deal found 2/9$525
This Flighttix deal was found by Cheapflights users on 2/9. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:05 amSEA - OSL
2 stops24h 30mMultiple Airlines
Wed 4/25:40 amOSL - SEA
2 stops26h 03mMultiple Airlines
Deal found 2/9$539
This KLM deal was found by Cheapflights users on 2/9. 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.
Mon 3/103:15 pmSEA - OSL
1 stop13h 15mKLM
Mon 3/174:30 pmOSL - SEA
1 stop28h 10mKLM
Deal found 2/9$543
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/1010:25 amSEA - OSL
2 stops17h 30mDelta
Tue 3/189:20 amOSL - SEA
2 stops21h 05mDelta
Deal found 2/9$558
This Gotogate deal was found by Cheapflights users on 2/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/263:00 pmSEA - OSL
1 stop13h 45mLufthansa
Wed 4/211:35 amOSL - SEA
1 stop14h 24mLufthansa
Deal found 2/9$559
This lol.travel deal was found by Cheapflights users on 2/9. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/118:10 amSEA - OSL
2 stops21h 25mAustrian Airlines
Mon 3/172:20 pmOSL - SEA
2 stops38h 04mAustrian Airlines
Deal found 2/9$565
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 3/116:15 amSEA - OSL
3 stops33h 15mUnited Airlines
Mon 3/1711:50 amOSL - SEA
1 stop34h 30mUnited Airlines
Deal found 2/10$584
This Air France deal was found by Cheapflights users on 2/9. 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.
Wed 4/91:30 pmSEA - OSL
1 stop13h 20mAir France
Wed 4/236:00 amOSL - SEA
1 stop20h 40mAir France
Deal found 2/9$593

Find flights from Seattle to Oslo Gardermoen within your budget

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 February 10, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/7

3:45 pm-12:35 pm

1 stop11h 50m

Oslo Gardermoen

Mon 4/21

4:20 pm-8:40 pm

1 stop13h 20m

$419

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/10

7:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

Tue 3/18

11:40 am-5:55 pm

1 stop14h 15m

$521

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/11

7:50 pm-6:10 pm

1 stop14h 20m

Oslo Gardermoen

Mon 3/17

2:30 pm-12:20 pm

1 stop29h 50m

$523

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/25

7:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

Tue 4/8

7:45 am-7:06 pm

2 stops20h 21m

$525

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/26

6:05 am-2:35 pm

2 stops24h 30m

Oslo Gardermoen

Wed 4/2

5:40 am-10:43 pm

2 stops26h 03m

$539

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/10

3:15 pm-12:30 pm

1 stop13h 15m

Oslo Gardermoen

Mon 3/17

4:30 pm-12:40 pm

1 stop28h 10m

$543

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/10

10:25 am-11:55 am

2 stops17h 30m

Oslo Gardermoen

Tue 3/18

9:20 am-10:25 pm

2 stops21h 05m

$558

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/26

3:00 pm-12:45 pm

1 stop13h 45m

Oslo Gardermoen

Wed 4/2

11:35 am-4:59 pm

1 stop14h 24m

$559

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/11

8:10 am-1:35 pm

2 stops21h 25m

Oslo Gardermoen

Mon 3/17

2:20 pm-8:24 pm

2 stops38h 04m

$565

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/11

6:15 am-5:55 pm

3 stops27h 40m

Oslo Gardermoen

Mon 3/17

11:50 am-2:20 pm

1 stop34h 30m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Oslo Gardermoen Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Seattle to Oslo Gardermoen

Get recent, data-driven insights about flights from Seattle to Oslo Gardermoen including ideal travel times, pricing trends, and 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 February 7, 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 $1,144). 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 February 10, 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 February 10, 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.
8.0
Very good

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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.

8.0
Very good
8.0
Very good

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2