Question 1

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

Accepted Answer

United Airlines, at £358, was found to be the cheapest airline from Oslo Gardermoen Airport to Seattle.Alternate airlines flying return to your destination include Finnair and British Airways. United Airlines is currently priced 16% below the average price you’ll pay for this route.

Question 2

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

Accepted Answer

To fly one-way, consider booking your trip with Finnair, which is currently one of the cheapest options available, starting at £456. British Airways flights start at £491 while deals on TAP AIR PORTUGAL start at £682 one-way.

Question 3

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

Accepted Answer

Booking 74 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.

Question 4

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

Accepted Answer

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.

Question 5

What is the cheapest day to fly from Oslo Gardermoen Airport to Seattle?

Accepted Answer

Travellers seeking maximum savings on their Oslo Gardermoen Airport to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

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.

Question 7

E

Accepted Answer

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).

Question 8

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 60 days in advance, which can save you up to 53% on flights from Oslo Gardermoen Airport to Seattle compared to booking the week you need them. Waiting 60 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £318. For sooner than that we have options available in the next 3 days from £561.

Question 9

What is the cheapest month to fly from Oslo Gardermoen Airport to Seattle?

Accepted Answer

November can be a great time to fly to Seattle from Oslo Gardermoen Airport with a flight ticket averaging about £427. Cheapflights users have found deals in the month of November for as cheap as £267. The most expensive prices can be found in the month of July.

Question 10

What is the cheapest time of day to fly from OSL to SEA?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oslo Gardermoen Airport to Seattle as you normally would.

Question 11

What airport do you fly into for flights to Seattle from Oslo Gardermoen?

Accepted Answer

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.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

Cheapflights helps you search for flights from Oslo Gardermoen to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 16

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

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Oslo Gardermoen to Seattle for you. Better yet — we are completely free to use.

Question 17

Can Cheapflights find flights from Oslo Gardermoen to Seattle with no change fees?

Accepted Answer

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

Question 18

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

Accepted Answer

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.

Round-trip from	£358
Popular in	July
Cheapest in	November
Average price	£493

Cheap flights from Oslo Gardermoen Airport to Seattle from £358

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/7. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Oslo Gardermoen to SeattleExplore 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 13 June 2025.

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 13 June 2025.

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Best time to book a flight from Oslo Gardermoen to Seattle

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Everything you need to know about your flight from Oslo Gardermoen Airport to Seattle

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 9 June 2025.

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

Rainfall in Seattle by month

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

Temperature in Seattle by month

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

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Delta, KLM and Finnair from Oslo to Seattle. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

Travelling to a place near Oslo Gardermoen Airport?

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

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

Can Cheapflights find flights from Oslo Gardermoen to Seattle with no change fees?

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

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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 13 June 2025.