Question 1

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

Accepted Answer

Cheapflights users have booked flights from Seattle to Oslo round-trip from C$ 585. Other airlines that can offer you cheap pricing are British Airways, from C$ 649, and Delta, from C$ 678. Icelandair is priced at 34% lower than the current average price of a flight leaving 3 months from now.

Question 2

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

Accepted Answer

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at C$ 246. British Airways flights start at C$ 522 while deals on Lufthansa start at C$ 530 one-way.

Question 3

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from Seattle to Oslo, you should look to book at least 79 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.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

Travelers seeking maximum savings on their Seattle to Oslo flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at noon 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 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.

Question 7

E

Accepted Answer

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).

Question 8

What are the most popular airlines that fly from Seattle to Oslo?

Accepted Answer

Consider Icelandair, KLM or Lufthansa when booking your flight. These represent the most popular airlines when flying from Seattle to Oslo.

Question 9

What is the cheapest day to fly round-trip from Seattle to Oslo?

Accepted Answer

Thursday flights are found to be more expensive to fly from Seattle to Oslo. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Oslo.

Question 10

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

Accepted Answer

To save up to 20% on this flight, we recommend booking at least 8 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Oslo from C$ 687 1-2 weeks out and tickets from C$ 830 for flights departing within the next 72 hours.

Question 11

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Oslo. Flights to Oslo from Seattle in November are about C$ 888 on average during November, but can be found for as low as C$ 566.

Question 12

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

Accepted Answer

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.

Question 13

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

Accepted Answer

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. 4 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.

Question 14

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

Accepted Answer

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

Question 15

How can I find direct flights from Seattle to Oslo?

Accepted Answer

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

Question 16

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

Accepted Answer

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.

Question 17

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

Accepted Answer

Cheapflights helps you search for flights from Seattle to Oslo 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 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Round-trip from	C$ 585
One-way from	C$ 246
Popular in	June
Cheapest in	November
Average price	C$ 1,036

Airline	Cheapest	Average	Flexibility	On-time
KLM	CheapestC$ 585	AverageC$ 618	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Icelandair	CheapestC$ 634	AverageC$ 946	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Scandinavian Airlines	CheapestC$ 699	AverageC$ 748	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Lufthansa	CheapestC$ 870	AverageC$ 874	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Cheap flights from Seattle to Oslo from C$ 246

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo are usually found in November or October, booked 79 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Seattle to Oslo

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Find flight deals from Seattle to Oslo

Cheapest flights from Seattle to OsloExplore 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 3 July 2025.

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 3 July 2025.

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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.

Cheapflights Insights

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

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 27 June 2025.

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

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 3 July 2025.

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 3 July 2025.

Read reviews from past customers who have flown Delta,KLM, andFinnair from Seattle to Oslo. Users can see the overall rating for each airline as well as how each is rated 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 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?

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

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

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

How can I find direct flights from Seattle to Oslo?

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

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

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Alternative routes for Seattle to Oslo

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Top 4 airlines flying from Seattle to Oslo

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

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

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

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

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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 3 July 2025.