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$325+ Cheap flights from Oslo to Seattle (SEA)

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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Oslo to Seattle/Tacoma Intl are usually found in October or February, booked 54 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Oslo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) 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 December 18, 2024.

Round-trip from

$434
(Delta)

One-way from

$325
(StudentUniverse)

Popular in

August

Cheapest in

October

Average price

$649
From Oslo to Seattle/Tacoma Intl
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One-way flight from Oslo to Seattle/Tacoma Intl
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High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Oslo to Seattle

Best flights from Oslo to Seattle
Discover carefully curated flight deals from Oslo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

This Delta deal was found by Cheapflights users on 12/17. 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.
Thu 1/239:20 amOSL - SEA
2 stops20h 25mDelta
Wed 2/512:40 pmSEA - OSL
1 stop18h 45mDelta
Deal found 12/17$434
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 2/19:35 amOSL - SEA
2 stops44h 55mUnited Airlines
Sat 2/87:00 amSEA - OSL
3 stops49h 55mUnited Airlines
Deal found 12/18$439
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 1/237:00 amOSL - SEA
2 stops25h 09mAmerican Airlines
Wed 2/51:35 pmSEA - OSL
2 stops24h 05mAmerican Airlines
Deal found 12/17$441
This Flysmarter deal was found by Cheapflights users on 12/17. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/218:45 amOSL - SEA
2 stops20h 26mMultiple Airlines
Fri 4/48:20 pmSEA - OSL
2 stops26h 35mMultiple Airlines
Deal found 12/17$450
This Flysmarter deal was found by Cheapflights users on 12/17. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/216:00 amOSL - SEA
1 stop16h 20mAir Canada
Fri 4/42:20 pmSEA - OSL
1 stop18h 40mAir Canada
Deal found 12/17$455
This Booking.com deal was found by Cheapflights users on 12/17. 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.
Tue 1/78:10 pmOSL - SEA
1 stop28h 05mVirgin Atlantic
Wed 3/196:45 pmSEA - OSL
1 stop17h 55mVirgin Atlantic
Deal found 12/17$655
This Flysmarter deal was found by Cheapflights users on 12/18. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/231:05 pmTRF - SEA
2 stops19h 26mScandinavian Airlines
Wed 2/57:30 amSEA - TRF
2 stops20h 05mScandinavian Airlines
Deal found 12/18$672
This Ticket deal was found by Cheapflights users on 12/17. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/76:30 amOSL - SEA
2 stops17h 15mKLM
Thu 1/162:14 pmSEA - OSL
1 stop23h 06mKLM
Deal found 12/17$717
This Turkish Airlines deal was found by Cheapflights users on 12/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:15 pmOSL - SEA
1 stop31h 50mTurkish Airlines
Sat 3/228:00 pmSEA - OSL
1 stop31h 00mTurkish Airlines
Deal found 12/17$880
This Icelandair deal was found by Cheapflights users on 12/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/201:10 pmOSL - SEA
1 stop12h 50mIcelandair
Fri 3/213:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 12/17$938
This Lufthansa deal was found by Cheapflights users on 12/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/76:00 amOSL - SEA
2 stops21h 25mLufthansa
Fri 3/214:10 pmSEA - OSL
1 stop17h 45mLufthansa
Deal found 12/17$1,162
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/18. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/110:00 amOSL - SEA
3 stops34h 16mTAP AIR PORTUGAL
Sat 2/87:08 amSEA - OSL
3 stops28h 17mTAP AIR PORTUGAL
Deal found 12/18$1,202

Find flights from Oslo to Seattle within your budget

Customize your flight search to find flights from Oslo 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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/23

9:20 am-8:45 pm

2 stops20h 25m

Seattle/Tacoma Intl

Wed 2/5

12:40 pm-4:25 pm

1 stop18h 45m

$434

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 2/1

9:35 am-9:30 pm

2 stops44h 55m

Seattle/Tacoma Intl

Sat 2/8

7:00 am-5:55 pm

3 stops49h 55m

$439

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/23

7:00 am-11:09 pm

2 stops25h 09m

Seattle/Tacoma Intl

Wed 2/5

1:35 pm-10:40 pm

2 stops24h 05m

$441

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 3/21

8:45 am-9:11 pm

2 stops20h 26m

Seattle/Tacoma Intl

Fri 4/4

8:20 pm-7:55 am

2 stops26h 35m

$450

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 3/21

6:00 am-2:20 pm

1 stop16h 20m

Seattle/Tacoma Intl

Fri 4/4

2:20 pm-6:00 pm

1 stop18h 40m

$455

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 1/7

8:10 pm-3:15 pm

1 stop28h 05m

Seattle/Tacoma Intl

Wed 3/19

6:45 pm-8:40 pm

1 stop17h 55m

$655

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Thu 1/23

1:05 pm-11:31 pm

2 stops19h 26m

Seattle/Tacoma Intl

Wed 2/5

7:30 am-12:35 pm

2 stops20h 05m

$672

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 1/7

6:30 am-2:45 pm

2 stops17h 15m

Seattle/Tacoma Intl

Thu 1/16

2:14 pm-10:20 pm

1 stop23h 06m

$717

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 3/20

6:15 pm-6:05 pm

1 stop31h 50m

Seattle/Tacoma Intl

Sat 3/22

8:00 pm-11:00 am

1 stop31h 00m

$880

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 3/20

1:10 pm-6:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Fri 3/21

3:35 pm-11:35 am

1 stop12h 00m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 28 results
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Best time to book a flight from Oslo to Seattle

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oslo to Seattle. Price data was last updated on December 13, 2024.

The price you pay for your flight from Oslo to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 54 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 Oslo to Seattle?

Currently, January is the cheapest month in which you can book a flight from Oslo to Seattle (average of $238). Flying from Oslo to Seattle in July is currently the most expensive (average of $411). 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 OSL to SEA?

Find hourly flight availability from Oslo to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

It’s typically best to fly out from Oslo to Seattle at noon. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

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 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 December 18, 2024.
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

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
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

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

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

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
841 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

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
668 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

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 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?

    If you book a flight to Seattle from Oslo, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Oslo to Seattle/Tacoma Intl per day from 5 different airlines.

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

    Cheapflights users have booked flights from Oslo to Seattle round-trip from $434. Other airlines that can offer you cheap pricing are United Airlines, from $439, and American Airlines, from $441. Users have found that Delta is 24% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $325 on Icelandair. Other airlines that offer cheap prices include Iberia from $430 and British Airways from $499 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oslo 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 to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Oslo to Seattle (average of $238). Flying from Oslo to Seattle in July is currently the most expensive (average of $411). 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.

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Alternative routes for Oslo to Seattle

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

Top 5 airlines flying from Oslo to Seattle

Discover the top 5 airlines that operate flights from Oslo to Seattle. 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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$382Average$559FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$415Average$565FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$608FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$672FlexibilityNo cancel feeOn-time70%
DeltaCheapest$522Average$726FlexibilityNo cancel feeOn-timeN/A
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