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Cheap flights from Seattle to Oslo Gardermoen Airport from C$ 530

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
17 jun. — 24 jun.1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo Gardermoen are usually found in November or January, booked 79 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 12 junio 2025.

Round-trip from

C$ 734

One-way from

C$ 530

Popular in

June

Cheapest in

November

Average price

C$ 1,179
United Airlines
  • United Airlines
  • 11/8-21/8
  • 3 total stops
  • 41h 15m total
  • Seattle to Oslo
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Delta
  • Delta
  • 3/12
  • 1 total stop
  • 16h 30m total
  • Seattle to Oslo
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
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Average for round-trip flights in June 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 12 junio 2025.

lun. 11/812:20 a.m.SEA - OSL
2 stops26h 55mUnited Airlines
jue. 21/86:35 a.m.OSL - SEA
1 stop14h 20mUnited Airlines
Deal found 12/6C$ 734
mar. 9/91:30 p.m.SEA - OSL
1 stop24h 55mBritish Airways
mié. 1/107:40 a.m.OSL - SEA
2 stops21h 29mBritish Airways
Deal found 10/6C$ 740
lun. 21/75:35 p.m.SEA - OSL
1 stop30h 10mDelta
mar. 26/86:30 a.m.OSL - SEA
2 stops18h 30mDelta
Deal found 11/6C$ 741
jue. 4/1211:05 a.m.SEA - OSL
2 stops21h 45mLufthansa
lun. 15/126:15 a.m.OSL - SEA
1 stop14h 55mLufthansa
Deal found 10/6C$ 742
mié. 10/94:00 p.m.SEA - OSL
1 stop21h 35mScandinavian Airlines
dom. 12/106:00 p.m.OSL - SEA
2 stops37h 23mScandinavian Airlines
Deal found 10/6C$ 745
dom. 10/85:40 p.m.SEA - OSL
1 stop17h 05mFinnair
sáb. 23/88:35 a.m.OSL - SEA
2 stops24h 05mFinnair
Deal found 10/6C$ 749
vie. 24/101:45 p.m.SEA - OSL
2 stops25h 10mSWISS
lun. 10/111:00 p.m.OSL - SEA
2 stops40h 51mSWISS
Deal found 11/6C$ 778
jue. 31/72:05 p.m.SEA - OSL
1 stop13h 25mKLM
mar. 12/85:20 p.m.OSL - SEA
1 stop27h 15mKLM
Deal found 12/6C$ 834
mar. 1/77:00 p.m.SEA - OSL
1 stop11h 25mIcelandair
mié. 16/74:30 p.m.OSL - SEA
1 stop13h 10mIcelandair
Deal found 12/6C$ 868
mar. 4/111:24 a.m.SEA - OSL
2 stops36h 16mMultiple Airlines
mar. 18/117:15 a.m.OSL - SEA
2 stops23h 00mMultiple Airlines
Deal found 9/6C$ 1,002

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 12 junio 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

lun. 11/8

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

2 stops26h 55m

Oslo Gardermoen

jue. 21/8

6:35 a.m.-11:55 a.m.

1 stop14h 20m

C$ 734

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 9/9

1:30 p.m.-11:25 p.m.

1 stop24h 55m

Oslo Gardermoen

mié. 1/10

7:40 a.m.-8:09 p.m.

2 stops21h 29m

C$ 740

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 21/7

5:35 p.m.-8:45 a.m.

1 stop30h 10m

Oslo Gardermoen

mar. 26/8

6:30 a.m.-4:00 p.m.

2 stops18h 30m

C$ 741

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

jue. 4/12

11:05 a.m.-5:50 p.m.

2 stops21h 45m

Oslo Gardermoen

lun. 15/12

6:15 a.m.-12:10 p.m.

1 stop14h 55m

C$ 742

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 10/9

4:00 p.m.-10:35 p.m.

1 stop21h 35m

Oslo Gardermoen

dom. 12/10

6:00 p.m.-10:23 p.m.

2 stops37h 23m

C$ 745

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

dom. 10/8

5:40 p.m.-7:45 p.m.

1 stop17h 05m

Oslo Gardermoen

sáb. 23/8

8:35 a.m.-11:40 p.m.

2 stops24h 05m

C$ 749

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

vie. 24/10

1:45 p.m.-11:55 p.m.

2 stops25h 10m

Oslo Gardermoen

lun. 10/11

1:00 p.m.-8:51 p.m.

2 stops40h 51m

C$ 778

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

jue. 31/7

2:05 p.m.-12:30 p.m.

1 stop13h 25m

Oslo Gardermoen

mar. 12/8

5:20 p.m.-11:35 a.m.

1 stop27h 15m

C$ 834

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 1/7

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

1 stop11h 25m

Oslo Gardermoen

mié. 16/7

4:30 p.m.-8:40 p.m.

1 stop13h 10m

C$ 868

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 4/11

1:24 a.m.-10:40 p.m.

2 stops36h 16m

Oslo Gardermoen

mar. 18/11

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

2 stops23h 00m

C$ 1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 16 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 9 June 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 79 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 12 junio 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 12 junio 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair 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
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 2 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$ 734. Other airlines that can offer you cheap pricing are British Airways, from C$ 740, and Delta, from C$ 741. United Airlines is 19% 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 Delta, with whom users have recently found tickets for as low as C$ 530. However, be on the lookout for offers from SWISS and United Airlines, 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 2 airlines flying from Seattle to Oslo Gardermoen

Discover the top 2 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 12 junio 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 638AverageC$ 928FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 876AverageC$ 880FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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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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