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Cheap flights from Seattle to Oslo from $166

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Oslo departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Icelandair Logo
3:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
Icelandair Logo
1:05 pm - 5:00 pmOSL-SEA
12h 55m1 stop
$394Icelandair
Find Deal
mar., oct. 28 - vie., nov. 7
Icelandair Logo
3:45 pm - 12:35 pmSEA-OSL
11h 50m1 stop
Icelandair Logo
4:45 pm - 8:40 pmOSL-SEA
12h 55m1 stop
$396Icelandair
Find Deal
mié., oct. 15 - lun., oct. 20
Icelandair Logo
7:00 pm - 12:35 pmSEA-OSL
32h 35m1 stop
Icelandair Logo
1:05 pm - 6:00 pmOSL-SEA
12h 55m1 stop
$397Icelandair
Find Deal
vie., oct. 24 - vie., oct. 31
Scandinavian Airlines Logo
4:00 pm - 2:10 pmSEA-OSL
13h 10m1 stop
Scandinavian Airlines Logo
6:55 pm - 1:50 pmOSL-SEA
27h 55m1 stop
$476Scandinavian Airlines
Find Deal
dom., ago. 10 - dom., ago. 17
British Airways Logo
2:35 pm - 2:15 pmSEA-OSL
15h 40m1 stop
British Airways Logo
7:15 am - 4:55 pmOSL-SEA
18h 40m1 stop
$478British Airways
Find Deal
mar., oct. 28 - vie., nov. 7
British Airways Logo
2:35 pm - 10:40 pmSEA-OSL
24h 05m1 stop
British Airways Logo
11:40 am - 4:55 pmOSL-SEA
14h 15m1 stop
$486British Airways
Find Deal
mar., oct. 28 - vie., nov. 7
Delta Logo
11:20 am - 4:25 pmSEA-OSL
21h 05m2 stops
Delta Logo
6:20 am - 1:15 pmOSL-SEA
15h 55m1 stop
$499Delta
Find Deal
mar., oct. 28 - vie., nov. 7
Finnair Logo
7:44 am - 4:35 pmSEA-OSL
23h 51m2 stops
Finnair Logo
8:35 pm - 7:27 pmOSL-SEA
31h 52m2 stops
$505Finnair
Find Deal
mié., oct. 15 - lun., oct. 20
Delta Logo
8:25 pm - 8:40 pmSEA-OSL
15h 15m1 stop
Delta Logo
9:20 am - 8:50 pmOSL-SEA
20h 30m2 stops
$507Delta
Find Deal
lun., ago. 11 - vie., ago. 22
Scandinavian Airlines Logo
4:20 pm - 4:00 pmSEA-OSL
14h 40m1 stop
Scandinavian Airlines Logo
12:10 pm - 11:24 pmOSL-SEA
20h 14m2 stops
$514Scandinavian Airlines
Find Deal
vie., oct. 24 - lun., nov. 10

Icelandair flights from Seattle to Oslo Gardermoen Airport

Our best Icelandair deals on Seattle to Oslo Gardermoen Airport flight tickets
Icelandair
Oct 28
SEA3:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Nov 7
OSL1:05 pmOslo Gardermoen
12h 55m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Icelandair
Oct 15
SEA3:45 pmSeattle/Tacoma Intl
11h 50m
1 stop
OSL12:35 pmOslo Gardermoen
Oct 20
OSL4:45 pmOslo Gardermoen
12h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Icelandair
Oct 24
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Oct 31
OSL1:05 pmOslo Gardermoen
12h 55m
1 stop
SEA6:00 pmSeattle/Tacoma Intl

American Airlines flights from Seattle to Oslo Gardermoen Airport

Our best American Airlines deals on Seattle to Oslo Gardermoen Airport flight tickets
American Airlines
Oct 28
SEA11:42 amSeattle/Tacoma Intl
18h 33m
2 stops
OSL2:15 pmOslo Gardermoen
Nov 7
OSL11:40 amOslo Gardermoen
22h 13m
2 stops
SEA12:53 amSeattle/Tacoma Intl
American Airlines
Aug 20
SEA1:30 pmSeattle/Tacoma Intl
25h 00m
1 stop
OSL11:30 pmOslo Gardermoen
Aug 27
OSL1:20 pmOslo Gardermoen
19h 21m
2 stops
SEA11:41 pmSeattle/Tacoma Intl
American Airlines
Aug 20
SEA7:44 amSeattle/Tacoma Intl
17h 56m
2 stops
OSL10:40 amOslo Gardermoen
Aug 27
OSL1:20 pmOslo Gardermoen
19h 21m
2 stops
SEA11:41 pmSeattle/Tacoma Intl

See travel insights to Oslo from

How to get the cheapest flight ticket from Seattle to Oslo Gardermoen Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The cheapest month to fly to Oslo Gardermoen Airport from Seattle is in November. Flight prices, which tend to average around $537, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Oslo Gardermoen Airport from Seattle during October instead. Flights to Oslo Gardermoen Airport in October, while not as cheap as those in November, still average around $558.

What is the cheapest day to depart on your flight to Oslo Gardermoen Airport?

According to our data, Tuesday is the cheapest day to fly to Oslo Gardermoen Airport from Seattle. The lowest ticket price found for a Tuesday departure recently was $772. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Oslo Gardermoen Airport for around $896.

What is the cheapest time of day to depart on your flight to Oslo Gardermoen Airport?

Our most recent data shows that the best time of day to fly to Oslo Gardermoen Airport is in the evening. Flights from Seattle to Oslo Gardermoen Airport during this time can be as low as $696. In contrast, the most expensive time of day to depart to Oslo Gardermoen Airport is in the afternoon when prices are around $959.

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

You are more likely to see cheaper flights to Oslo Gardermoen Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo Gardermoen Airport for around $653 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo Gardermoen Airport from Seattle for as low as $596 on momondo.

How have Seattle to Oslo Gardermoen Airport flight prices changed over time?

As of July 2025, prices for Seattle to Oslo Gardermoen Airport flights are approximately 64% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Oslo Gardermoen Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Oslo Gardermoen Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Oslo Gardermoen Airport (SEA to OSL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Oslo Gardermoen Airport

Best Price Found

$166

Fastest flight time

11h 25m

Direct flights

None
The best one-way flight to Oslo Gardermoen Airport from Seattle in the past 72 hours is $166. The best round-trip flight deal from Seattle to Oslo Gardermoen Airport found on momondo in the last 72 hours is $394.
The fastest flight from Seattle to Oslo Gardermoen Airport takes 11h 25m
There are no direct flights from Seattle to Oslo Gardermoen Airport. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Oslo Gardermoen Airport.

  • How far is Seattle/Tacoma Intl to Oslo Gardermoen by plane?

    Seattle/Tacoma Intl and Oslo Gardermoen are 4540.7 mi apart from one another. 11h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport.

  • What documentation or ID do you need to fly to Oslo Gardermoen Airport?

    The travel and health documents you'll need for your trip to Oslo Gardermoen Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo Gardermoen Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Oslo Gardermoen Airport?


Best airlines flying from Seattle to Oslo Gardermoen Airport

Compare and see reviews for airlines that fly from Seattle to Oslo Gardermoen Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $426Free CancellationRating
7.0
514 reviews
Search Icelandair flights
British AirwaysPriceFrom $475Free CancellationRating
6.6
7,093 reviews
Search British Airways flights
FinnairPriceFrom $484Free CancellationRating
7.6
1,306 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom $494Free CancellationRating
7.3
1,416 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $517Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
LufthansaPriceFrom $563Free CancellationRating
6.8
7,207 reviews
Search Lufthansa flights
KLMPriceFrom $564Free CancellationRating
7.8
1,367 reviews
Search KLM flights
Air FrancePriceFrom $569Free CancellationRating
7.5
1,465 reviews
Search Air France flights
DeltaPriceFrom $569Free CancellationRating
8.0
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Gardermoen
Drammen
Fredrikstad
Lillehammer

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Seattle.

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

Flights from Seattle to Oslo with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Oslo?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Oslo from Seattle.

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Oslo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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1 adult
mar. 7/8
mar. 7/15

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