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Cheap flights from Seattle to Oslo from C$ 472

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
26 Jan — 2 Feb1
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 January 2025.

Round-trip from

C$ 728

One-way from

C$ 472

Popular in

June

Cheapest in

November

Average price

C$ 857
Finnair
  • Finnair
  • 18/3-28/3
  • 3 total stops
  • 39h 15m total
  • Seattle to Oslo
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5/3
  • 5/3
  • 2 total stops
  • 22h 25m total
  • Seattle to Oslo
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 652 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 101 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 2025.

Tue 18/37:50 p.m.SEA - OSL
1 stop18h 50mFinnair
Fri 28/38:45 a.m.OSL - SEA
2 stops20h 25mFinnair
Deal found 20/1C$ 728
Wed 19/26:50 p.m.SEA - OSL
1 stop18h 50mMultiple Airlines
Wed 26/28:50 p.m.OSL - SEA
2 stops31h 15mMultiple Airlines
Deal found 20/1C$ 733
Tue 18/37:50 p.m.SEA - OSL
1 stop14h 20mBritish Airways
Mon 7/45:05 p.m.OSL - SEA
1 stop27h 05mBritish Airways
Deal found 20/1C$ 746
Wed 5/32:10 p.m.SEA - OSL
1 stop21h 40mKLM
Wed 12/39:20 a.m.OSL - SEA
1 stop35h 20mKLM
Deal found 21/1C$ 779
Mon 17/31:35 p.m.SEA - OSL
1 stop18h 50mDelta
Mon 7/49:20 a.m.OSL - SEA
1 stop35h 25mDelta
Deal found 20/1C$ 782
Sun 24/87:00 p.m.SEA - OSL
1 stop11h 25mIcelandair
Sat 6/94:30 p.m.OSL - SEA
1 stop13h 10mIcelandair
Deal found 21/1C$ 815
Tue 18/34:10 p.m.SEA - OSL
1 stop23h 20mLufthansa
Fri 28/36:30 a.m.OSL - SEA
1 stop14h 40mLufthansa
Deal found 20/1C$ 821
Tue 18/31:25 p.m.SEA - OSL
2 stops16h 50mAmerican Airlines
Mon 7/41:10 p.m.OSL - SEA
2 stops18h 55mAmerican Airlines
Deal found 20/1C$ 823
Tue 18/36:15 a.m.SEA - OSL
3 stops27h 40mUnited Airlines
Fri 28/36:00 a.m.OSL - SEA
1 stop16h 20mUnited Airlines
Deal found 20/1C$ 826
Mon 25/84:25 p.m.SEA - OSL
1 stop22h 30mSWISS
Wed 3/96:20 a.m.OSL - SEA
2 stops21h 16mSWISS
Deal found 21/1C$ 913
Fri 21/35:45 a.m.SEA - OSL
2 stops28h 10mAir Canada
Mon 7/41:00 p.m.OSL - SEA
2 stops38h 28mAir Canada
Deal found 20/1C$ 1,106

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 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 18/3

7:50 p.m.-10:40 p.m.

1 stop18h 50m

Oslo Gardermoen

Fri 28/3

8:45 a.m.-9:10 p.m.

2 stops20h 25m

C$ 728

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 19/2

6:50 p.m.-10:40 p.m.

1 stop18h 50m

Oslo Gardermoen

Wed 26/2

8:50 p.m.-7:05 p.m.

2 stops31h 15m

C$ 733

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 18/3

7:50 p.m.-6:10 p.m.

1 stop14h 20m

Oslo Gardermoen

Mon 7/4

5:05 p.m.-11:10 a.m.

1 stop27h 05m

C$ 746

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 5/3

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

1 stop21h 40m

Oslo Gardermoen

Wed 12/3

9:20 a.m.-12:40 p.m.

1 stop35h 20m

C$ 779

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 17/3

1:35 p.m.-4:25 p.m.

1 stop18h 50m

Oslo Gardermoen

Mon 7/4

9:20 a.m.-11:45 a.m.

1 stop35h 25m

C$ 782

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 18/3

4:10 p.m.-11:30 p.m.

1 stop23h 20m

Oslo Gardermoen

Fri 28/3

6:30 a.m.-1:10 p.m.

1 stop14h 40m

C$ 821

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 18/3

1:25 p.m.-2:15 p.m.

2 stops16h 50m

Oslo Gardermoen

Mon 7/4

1:10 p.m.-11:05 p.m.

2 stops18h 55m

C$ 823

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 18/3

6:15 a.m.-5:55 p.m.

3 stops27h 40m

Oslo Gardermoen

Fri 28/3

6:00 a.m.-2:20 p.m.

1 stop16h 20m

C$ 826

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 24/4

3:45 p.m.-3:15 p.m.

1 stop14h 30m

Oslo Gardermoen

Sat 14/6

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

1 stop13h 10m

C$ 891

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 7/2

3:25 p.m.-12:10 p.m.

2 stops35h 45m

Oslo Gardermoen

Sat 15/2

6:50 p.m.-10:42 p.m.

2 stops36h 52m

C$ 976

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

Showing 1-10 of 16 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 17 January 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 January 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 January 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Seattle to Oslo to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Food

7.3

Reviews

1 / 10

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. 1 airline 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$ 728. Other airlines that can offer you cheap pricing are British Airways, from C$ 746, and KLM, from C$ 779. Finnair is priced at 34% 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$ 579. American Airlines flights start at C$ 580 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 airline flying from Seattle to Oslo

Discover the top airline 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 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 700AverageC$ 959FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Oslo?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Oslo for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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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