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Cheap flights from Seattle to Oslo from C$ 604

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
26 Feb — 5 Mar1
1 adult

The best prices from Seattle/Tacoma Intl to Oslo 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

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Oslo (OS1). 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 21 February 2025.

Round-trip from

C$ 795

One-way from

C$ 604

Popular in

June

Cheapest in

November

Average price

C$ 997
KLM
  • KLM
  • 5/3-13/3
  • 2 total stops
  • 49h 20m total
  • Seattle to Oslo
Search Deals
Lufthansa
  • Lufthansa
  • 19/3
  • 1 total stop
  • 33h 45m total
  • Seattle to Oslo
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 539 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 91 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Seattle to Oslo

Cheapest flights from Seattle to Oslo
Explore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Tue 28/102:35 p.m.SEA - OSL
1 stop19h 35mMultiple Airlines
Fri 7/118:45 a.m.OSL - SEA
2 stops19h 13mMultiple Airlines
Deal found 20/2C$ 746
Tue 28/102:35 p.m.SEA - OSL
2 stops18h 00mFinnair
Fri 7/118:45 a.m.OSL - SEA
2 stops19h 13mFinnair
Deal found 19/2C$ 777
Wed 5/32:10 p.m.SEA - OSL
1 stop21h 40mKLM
Thu 13/35:00 p.m.OSL - SEA
1 stop27h 40mKLM
Deal found 19/2C$ 795
Wed 5/37:28 a.m.SEA - OSL
2 stops19h 27mDelta
Thu 13/36:30 a.m.OSL - SEA
1 stop14h 10mDelta
Deal found 19/2C$ 803
Sun 4/53:45 p.m.SEA - OSL
1 stop11h 50mIcelandair
Sun 25/51:50 p.m.OSL - SEA
1 stop13h 00mIcelandair
Deal found 19/2C$ 805
Tue 1/43:35 p.m.SEA - OSL
2 stops17h 30mUnited Airlines
Tue 8/46:35 a.m.OSL - SEA
3 stops23h 40mUnited Airlines
Deal found 19/2C$ 812
Wed 16/48:20 p.m.SEA - OSL
1 stop18h 10mBritish Airways
Thu 24/47:45 a.m.OSL - SEA
2 stops20h 15mBritish Airways
Deal found 20/2C$ 864
Tue 2/123:10 p.m.SEA - OSL
1 stop23h 20mLufthansa
Sat 13/126:45 p.m.OSL - SEA
1 stop27h 35mLufthansa
Deal found 19/2C$ 895
Thu 6/32:50 p.m.SEA - OSL
2 stops36h 20mSWISS
Sun 9/31:00 p.m.OSL - SEA
2 stops41h 39mSWISS
Deal found 20/2C$ 966
Fri 1/86:40 p.m.SEA - OSL
1 stop19h 40mAir France
Sat 16/88:25 a.m.OSL - SEA
2 stops23h 53mAir France
Deal found 20/2C$ 1,473

Find flights from Seattle to Oslo within your budget

Customize your flight search to find flights from Seattle to Oslo 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 21 February 2025.

Fly from

Seattle

Fly to

Oslo

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 5/3

2:10 p.m.-8:50 p.m.

1 stop21h 40m

Oslo Gardermoen

Thu 13/3

5:00 p.m.-12:40 p.m.

1 stop27h 40m

C$ 795

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 5/3

7:28 a.m.-11:55 a.m.

2 stops19h 27m

Oslo Gardermoen

Thu 13/3

6:30 a.m.-12:40 p.m.

1 stop14h 10m

C$ 803

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 4/5

3:45 p.m.-12:35 p.m.

1 stop11h 50m

Oslo Gardermoen

Sun 25/5

1:50 p.m.-5:50 p.m.

1 stop13h 00m

C$ 805

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 1/4

3:35 p.m.-6:05 p.m.

2 stops17h 30m

Oslo Gardermoen

Tue 8/4

6:35 a.m.-9:15 p.m.

3 stops23h 40m

C$ 812

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 9/4

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

1 stop25h 00m

Oslo Gardermoen

Wed 23/4

1:20 p.m.-11:09 p.m.

2 stops18h 49m

C$ 824

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 16/4

8:20 p.m.-11:30 p.m.

1 stop18h 10m

Oslo Gardermoen

Thu 24/4

7:45 a.m.-7:00 p.m.

2 stops20h 15m

C$ 864

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 24/3

12:25 p.m.-5:35 p.m.

2 stops21h 10m

Oslo Gardermoen

Mon 28/4

1:00 p.m.-10:21 p.m.

2 stops42h 21m

C$ 898

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 6/3

2:50 p.m.-12:10 p.m.

2 stops36h 20m

Oslo Gardermoen

Sun 9/3

1:00 p.m.-10:39 p.m.

2 stops41h 39m

C$ 966

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 2/5

6:50 p.m.-10:10 p.m.

1 stop18h 20m

Oslo Gardermoen

Fri 9/5

6:35 a.m.-2:13 p.m.

2 stops16h 38m

C$ 980

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 1/8

6:40 p.m.-11:20 p.m.

1 stop19h 40m

Oslo Gardermoen

Sat 16/8

8:25 a.m.-11:18 p.m.

2 stops23h 53m

C$ 1,473

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo 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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Oslo. Price data was last updated on 14 February 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Oslo, 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?

Currently, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of C$ 666). Flying from Seattle to Oslo 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

It’s typically best to fly out from Seattle to Oslo 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 by month

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

In terms of precipitation, rainfall in Oslo 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 when rainfall is around 40.0 mm.

Temperature in Oslo by month

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

If weather is an important factor for your trip to Oslo, 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

Get insights into the airlines that provide service to Oslo. 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. Reviews last updated 21 February 2025.
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8,220 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,333 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,273 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,568 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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. 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?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Oslo. 2 airlines have flights from Seattle/Tacoma Intl to Oslo on a regular basis. Booking flights from Seattle/Tacoma Intl to Oslo should not be difficult; the airport handles an average of 0 outbound flights to Oslo per day.

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

    Cheapflights users have booked flights from Seattle to Oslo round-trip from C$ 795. Other airlines that can offer you cheap pricing are Delta, from C$ 803, and Icelandair, from C$ 805. KLM is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at C$ 604. SWISS flights start at C$ 607 while deals on United Airlines start at C$ 690 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Oslo 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?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of C$ 666). Flying from Seattle to Oslo 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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Alternative routes for Seattle to Oslo

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

Top 2 airlines flying from Seattle to Oslo

Discover the top 2 airlines that operate flights from Seattle to Oslo. 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 663AverageC$ 990FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 906AverageC$ 1,098FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Oslo?

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Yes, we can. To see specific flights from Seattle to Oslo with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Oslo become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Oslo from Seattle today and book when prices fit your budget.

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