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Cheap flights from Oslo Gardermoen Airport to Seattle from £330

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
27 Jan — 3 Feb1
1 adult

Cheap flight deals from Oslo Gardermoen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Seattle (SEA). 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 22 January 2025.

Round-trip from

£330

Popular in

July

Cheapest in

October

Average price

£477
Finnair
  • Finnair
  • 13/3-17/3
  • 2 total stops
  • 37h 45m total
  • Oslo to Seattle
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£102 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from Oslo Gardermoen to Seattle

Cheapest flights from Oslo Gardermoen to Seattle
Explore the most affordable flight options available from Oslo Gardermoen to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Thu 13/307:00OSL - SEA
1 stop18h 55mMultiple Airlines
Mon 17/319:50SEA - OSL
1 stop18h 50mMultiple Airlines
Deal found 21/1£330
Mon 10/306:30OSL - SEA
1 stop14h 10mDelta
Wed 26/319:55SEA - OSL
1 stop14h 55mDelta
Deal found 21/1£336
Thu 13/311:40OSL - SEA
1 stop14h 15mBritish Airways
Mon 17/314:05SEA - OSL
2 stops20h 30mBritish Airways
Deal found 21/1£340
Mon 10/313:35OSL - SEA
2 stops39h 55mUnited Airlines
Wed 26/315:45SEA - OSL
2 stops18h 10mUnited Airlines
Deal found 21/1£355
Fri 18/706:35OSL - SEA
1 stop14h 20mLufthansa
Sun 3/818:50SEA - OSL
1 stop18h 20mLufthansa
Deal found 20/1£565
Fri 18/720:30OSL - SEA
1 stop28h 30mFinnair
Mon 4/817:45SEA - OSL
2 stops20h 45mFinnair
Deal found 22/1£651
Thu 17/713:50OSL - SEA
1 stop15h 50mIcelandair
Fri 1/819:00SEA - OSL
1 stop11h 25mIcelandair
Deal found 20/1£720
Sat 1/207:55OSL - SEA
2 stops23h 30mVirgin Atlantic
Tue 25/318:45SEA - OSL
1 stop20h 15mVirgin Atlantic
Deal found 21/1£956
Fri 28/312:55OSL - SEA
2 stops41h 43mTAP AIR PORTUGAL
Sat 5/423:55SEA - OSL
3 stops29h 15mTAP AIR PORTUGAL
Deal found 21/1£1,021
Mon 10/318:45OSL - SEA
4 stops57h 39mEthiopian Air
Wed 26/308:10SEA - OSL
4 stops39h 35mEthiopian Air
Deal found 21/1£2,176
Fri 18/709:50OSL - SEA
3 stops47h 05mCathay Pacific
Sun 3/808:05SEA - OSL
3 stops43h 10mCathay Pacific
Deal found 20/1£9,363

Find flights from Oslo Gardermoen to Seattle within your budget

Customise your flight search to find flights from Oslo Gardermoen to Seattle 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 858,174 searches. Data last updated 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 13/3

07:00-17:55

1 stop18h 55m

Seattle/Tacoma Intl

Mon 17/3

19:50-22:40

1 stop18h 50m

£330

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/3

06:30-12:40

1 stop14h 10m

Seattle/Tacoma Intl

Wed 26/3

19:55-18:50

1 stop14h 55m

£336

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 13/3

11:40-17:55

1 stop14h 15m

Seattle/Tacoma Intl

Mon 17/3

14:05-18:35

2 stops20h 30m

£340

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/3

13:35-21:30

2 stops39h 55m

Seattle/Tacoma Intl

Wed 26/3

15:45-17:55

2 stops18h 10m

£355

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 18/7

06:35-11:55

1 stop14h 20m

Seattle/Tacoma Intl

Sun 3/8

18:50-22:10

1 stop18h 20m

£565

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 18/7

20:30-16:00

1 stop28h 30m

Seattle/Tacoma Intl

Mon 4/8

17:45-23:30

2 stops20h 45m

£651

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 17/7

13:50-20:40

1 stop15h 50m

Seattle/Tacoma Intl

Fri 1/8

19:00-15:25

1 stop11h 25m

£720

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 1/2

07:55-22:25

2 stops23h 30m

Seattle/Tacoma Intl

Tue 25/3

18:45-23:00

1 stop20h 15m

£956

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 28/3

12:55-22:38

2 stops41h 43m

Seattle/Tacoma Intl

Sat 5/4

23:55-14:10

3 stops29h 15m

£1,021

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/3

18:45-20:24

4 stops57h 39m

Seattle/Tacoma Intl

Wed 26/3

08:10-07:45

4 stops39h 35m

£2,176

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 11 results
1
2

Best time to book a flight from Oslo Gardermoen to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Oslo Gardermoen with our price prediction graph.
Estimated return 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 Oslo Gardermoen to Seattle

Get recent, data-driven insights about flights from Oslo Gardermoen to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Oslo Gardermoen to Seattle. Price data was last updated on 17 January 2025.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Seattle (average of £622). Flying from Oslo Gardermoen Airport to Seattle in July is currently the most expensive (average of £946). 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.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 22 January 2025.
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Cathay Pacific
7.5
Good
830 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
664 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen to Seattle. 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 into for flights to Seattle from Oslo Gardermoen?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Oslo Gardermoen to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Oslo Gardermoen on a regular basis. Booking flights from Oslo Gardermoen to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Oslo Gardermoen per day.

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

    Delta, at £336, was found to be the cheapest airline from Oslo Gardermoen Airport to Seattle.Alternate airlines flying return to your destination include British Airways and United Airlines. Delta is currently priced 27% below the average price you’ll pay for this route.

  • Can I find deals for flights from Oslo Gardermoen to Seattle that include hotel bookings?

    Yes. In addition to deals on Oslo Gardermoen to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Oslo Gardermoen to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Seattle.

  • Can I find deals for business class flights from Oslo Gardermoen to Seattle?

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Seattle 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 Oslo Gardermoen Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Seattle (average of £622). Flying from Oslo Gardermoen Airport to Seattle in July is currently the most expensive (average of £946). 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

Travelling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

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Not ready to book yet? You can track prices for flights from Oslo Gardermoen to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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