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Cheap flights from Oslo Gardermoen Airport to Seattle from $394

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oslo Gardermoen Airport to Seattle departing on 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oslo Gardermoen Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:15 am - 5:27 pm
OSL
-
SEA
20h 12m
2 stops
Delta Logo
2:05 pm - 4:20 pm
SEA
-
OSL
17h 15m
1 stop
$660Delta
Wed, Nov 18 - Mon, Nov 30
United Airlines Logo
6:15 am - 12:00 pm
OSL
-
SEA
14h 45m
1 stop
United Airlines Logo
2:50 pm - 5:40 pm
SEA
-
OSL
17h 50m
1 stop
$662United Airlines
Mon, Nov 16 - Fri, Dec 4
United Airlines Logo
6:15 am - 12:00 pm
OSL
-
SEA
14h 45m
1 stop
United Airlines Logo
2:00 pm - 1:05 pm
SEA
-
OSL
14h 05m
1 stop
$663United Airlines
Mon, Nov 16 - Thu, Dec 3
Delta Logo
12:35 pm - 11:59 pm
OSL
-
SEA
20h 24m
2 stops
Delta Logo
11:15 am - 4:20 pm
SEA
-
OSL
20h 05m
2 stops
$666Delta
Fri, Nov 20 - Wed, Dec 2
United Airlines Logo
6:15 am - 8:48 pm
OSL
-
SEA
23h 33m
2 stops
United Airlines Logo
2:50 pm - 5:40 pm
SEA
-
OSL
17h 50m
1 stop
$667United Airlines
Tue, Nov 17 - Fri, Dec 4
United Airlines Logo
6:15 am - 6:59 pm
OSL
-
SEA
21h 44m
2 stops
United Airlines Logo
2:00 pm - 1:05 pm
SEA
-
OSL
14h 05m
1 stop
$668United Airlines
Tue, Nov 17 - Sat, Nov 28
Air Canada Logo
6:15 am - 6:22 pm
OSL
-
SEA
21h 07m
2 stops
Air Canada Logo
3:15 pm - 5:40 pm
SEA
-
OSL
41h 25m
2 stops
$671Air Canada
Mon, Nov 16 - Wed, Dec 2
Air Canada Logo
6:15 am - 6:22 pm
OSL
-
SEA
21h 07m
2 stops
Air Canada Logo
8:40 am - 1:05 pm
SEA
-
OSL
19h 25m
2 stops
$672Air Canada
Sun, Nov 22 - Tue, Dec 1
Iberia Logo
11:20 am - 4:55 pm
OSL
-
SEA
38h 35m
2 stops
Iberia Logo
6:50 pm - 2:15 pm
SEA
-
OSL
34h 25m
2 stops
$675Iberia
Sun, Nov 22 - Mon, Nov 30
Air Canada Logo
6:15 am - 9:17 am
OSL
-
SEA
36h 02m
2 stops
Air Canada Logo
7:45 am - 12:10 pm
SEA
-
OSL
43h 25m
2 stops
$676Air Canada
Mon, Nov 16 - Mon, Nov 30

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Lufthansa flights from Oslo Gardermoen Airport to Seattle

Our best Lufthansa deals on Oslo Gardermoen Airport to Seattle flight tickets
Lufthansa
Jun 15
OSL9:55 amOslo Gardermoen
21h 45m
2 stops
SEA10:40 pmSeattle/Tacoma Intl
Jun 28
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
$686
Lufthansa
Aug 6
OSL9:55 amOslo Gardermoen
16h 04m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
Aug 25
SEA7:00 amSeattle/Tacoma Intl
20h 15m
2 stops
OSL12:15 pmOslo Gardermoen
$688
Lufthansa
Jun 18
OSL6:45 amOslo Gardermoen
20h 47m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
Jul 2
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
$693

Icelandair flights from Oslo Gardermoen Airport to Seattle

Our best Icelandair deals on Oslo Gardermoen Airport to Seattle flight tickets
Icelandair
Jun 11
OSL1:50 pmOslo Gardermoen
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
Jun 24
SEA11:25 pmSeattle/Tacoma Intl
28h 10m
1 stop
OSL12:35 pmOslo Gardermoen
$679
Icelandair
Jun 10
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Jun 23
SEA11:25 pmSeattle/Tacoma Intl
31h 00m
1 stop
OSL3:25 pmOslo Gardermoen
$718
Icelandair
Aug 3
OSL1:50 pmOslo Gardermoen
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
Aug 17
SEA3:40 pmSeattle/Tacoma Intl
11h 55m
1 stop
OSL12:35 pmOslo Gardermoen
$774

momondo Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen Airport 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, momondo users made 832,500 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 11/18

6:15 am-5:27 pm

2 stops20h 12m

Seattle/Tacoma Intl

Mon 11/30

2:05 pm-4:20 pm

1 stop17h 15m

$660

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/16

6:15 am-12:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Fri 12/4

2:50 pm-5:40 pm

1 stop17h 50m

$662
Quickest round-trip

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/16

6:15 am-12:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Thu 12/3

2:00 pm-1:05 pm

1 stop14h 05m

$663

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/20

12:35 pm-11:59 pm

2 stops20h 24m

Seattle/Tacoma Intl

Wed 12/2

11:15 am-4:20 pm

2 stops20h 05m

$666

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 11/17

6:15 am-8:48 pm

2 stops23h 33m

Seattle/Tacoma Intl

Fri 12/4

2:50 pm-5:40 pm

1 stop17h 50m

$667

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 11/17

6:15 am-6:59 pm

2 stops21h 44m

Seattle/Tacoma Intl

Sat 11/28

2:00 pm-1:05 pm

1 stop14h 05m

$668

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/16

6:15 am-6:22 pm

2 stops21h 07m

Seattle/Tacoma Intl

Wed 12/2

3:15 pm-5:40 pm

2 stops41h 25m

$671

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 11/22

6:15 am-6:22 pm

2 stops21h 07m

Seattle/Tacoma Intl

Tue 12/1

8:40 am-1:05 pm

2 stops19h 25m

$672

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 11/22

11:20 am-4:55 pm

2 stops38h 35m

Seattle/Tacoma Intl

Mon 11/30

6:50 pm-2:15 pm

2 stops34h 25m

$675

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/16

6:15 am-9:17 am

2 stops36h 02m

Seattle/Tacoma Intl

Mon 11/30

7:45 am-12:10 pm

2 stops43h 25m

$676

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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

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 typical price of a round-trip flight between Oslo Gardermoen Airport and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Oslo Gardermoen Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $508. If you don’t want to visit Seattle in October, then you should wait until September to fly from Oslo Gardermoen Airport, when ticket prices are also cheap, with an average price of $534.

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

You are more likely to see cheaper flights to Seattle from Oslo Gardermoen Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $629 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Oslo Gardermoen Airport for as low as $535 on momondo.

Can stopping save me money on Oslo Gardermoen Airport to Seattle flights?

You could potentially save up to 10% on your flight if you consider stops on a Oslo Gardermoen Airport to Seattle flight.

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

As of June 2026, prices for Oslo Gardermoen Airport to Seattle flights are approximately 30% cheaper when compared to flights at the same time last year.

When to book flights from Oslo Gardermoen Airport to Seattle

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

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

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

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from Oslo Gardermoen Airport to Seattle takes 12h 50m
There are no direct flights from Oslo Gardermoen Airport to Seattle. There are no popular flight routes from Oslo Gardermoen Airport to Seattle.
Search flight deals

Frequently asked questions about flying from Oslo Gardermoen Airport to Seattle

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

    Seattle/Tacoma Intl is 4540.7 mi away from Oslo Gardermoen. 12h 50m is a normal flight duration for this route.

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

    Prices for flights from Oslo Gardermoen Airport to Seattle/Tacoma Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oslo Gardermoen Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Oslo Gardermoen Airport to Seattle

Compare and see reviews for airlines that fly from Oslo Gardermoen Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $443Free CancellationRating
7.0
670 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $588Free CancellationRating
7.4
1,813 reviews
Search Scandinavian Airlines flights

Traveling to a place near Seattle?

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oslo to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Oslo to Seattle 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 Oslo to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oslo to Seattle.

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

Yes momondo offers price alerts on flights to Seattle from Oslo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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