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Cheap flights from Oslo Gardermoen Airport to Seattle from $293

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 3/21. 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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Find the cheapest flights from Oslo Gardermoen Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
1:10 pm - 5:00 pmOSL-SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
$442Icelandair
Find Deal
Mon, Nov 24 - Sun, Dec 7
Icelandair Logo
1:10 pm - 5:00 pmOSL-SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
$467Icelandair
Find Deal
Fri, Nov 14 - Thu, Nov 27
Lufthansa Logo
6:15 am - 12:10 pmOSL-SEA
14h 55m1 stop
Lufthansa Logo
7:00 am - 5:30 pmSEA-OSL
25h 30m2 stops
$477Lufthansa
Find Deal
Mon, Nov 24 - Sun, Dec 7
Multiple Airlines Logo
8:45 am - 11:34 pmOSL-SEA
23h 49m2 stops
Multiple Airlines Logo
8:15 am - 8:10 pmSEA-OSL
26h 55m2 stops
$479Multiple Airlines
Find Deal
Mon, Nov 24 - Sun, Dec 7
Lufthansa Logo
6:15 am - 10:28 pmOSL-SEA
25h 13m2 stops
Lufthansa Logo
1:40 pm - 5:30 pmSEA-OSL
18h 50m2 stops
$480Lufthansa
Find Deal
Mon, Nov 24 - Sun, Dec 7
Delta Logo
9:25 am - 10:25 pmOSL-SEA
22h 00m2 stops
Delta Logo
7:20 am - 8:40 amSEA-OSL
16h 20m2 stops
$519Delta
Find Deal
Fri, Nov 14 - Thu, Nov 27
Delta Logo
6:30 am - 11:45 amOSL-SEA
14h 15m1 stop
Delta Logo
3:00 pm - 8:40 amSEA-OSL
32h 40m1 stop
$602Delta
Find Deal
Fri, Nov 14 - Thu, Nov 27
British Airways Logo
7:10 am - 4:55 pmOSL-SEA
18h 45m1 stop
British Airways Logo
1:35 pm - 11:00 pmSEA-OSL
24h 25m1 stop
$861British Airways
Find Deal
Fri, Dec 26 - Sat, Jan 10
Scandinavian Airlines Logo
4:00 pm - 8:50 pmOSL-SEA
37h 50m2 stops
Scandinavian Airlines Logo
7:10 am - 5:20 pmSEA-OSL
25h 10m2 stops
$1,113Scandinavian Airlines
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Sun, Dec 21 - Sat, Jan 3
British Airways Logo
6:30 pm - 4:55 pmOSL-SEA
31h 25m1 stop
British Airways Logo
6:50 pm - 10:55 amSEA-OSL
31h 05m1 stop
$1,131British Airways
Find Deal
Sat, Dec 20 - Sun, Jan 4

Icelandair flights from Oslo Gardermoen Airport to Seattle

Our best Icelandair deals on Oslo Gardermoen Airport to Seattle flight tickets
Icelandair
Nov 24
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Dec 7
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
$442
Find similar
Icelandair
Nov 14
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Nov 27
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
$467
Find similar
Icelandair
Mar 26
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
Mar 30
SEA7:00 pmSeattle/Tacoma Intl
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
$511
Find similar

Lufthansa flights from Oslo Gardermoen Airport to Seattle

Our best Lufthansa deals on Oslo Gardermoen Airport to Seattle flight tickets
Lufthansa
Nov 24
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Dec 7
SEA7:00 amSeattle/Tacoma Intl
25h 30m
2 stops
OSL5:30 pmOslo Gardermoen
$477
Find similar
Lufthansa
Nov 24
OSL6:15 amOslo Gardermoen
25h 13m
2 stops
SEA10:28 pmSeattle/Tacoma Intl
Dec 7
SEA1:40 pmSeattle/Tacoma Intl
18h 50m
2 stops
OSL5:30 pmOslo Gardermoen
$480
Find similar
Lufthansa
Nov 14
OSL6:30 pmOslo Gardermoen
33h 46m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
Nov 27
SEA10:53 amSeattle/Tacoma Intl
21h 47m
2 stops
OSL5:40 pmOslo Gardermoen
$493
Find similar

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 October 30, 2025.
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

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sun 12/7

2:35 pm-11:35 am

1 stop12h 00m

$442

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/14

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Thu 11/27

2:35 pm-11:35 am

1 stop12h 00m

$467

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

6:15 am-12:10 pm

1 stop14h 55m

Seattle/Tacoma Intl

Sun 12/7

7:00 am-5:30 pm

2 stops25h 30m

$477

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

8:45 am-11:34 pm

2 stops23h 49m

Seattle/Tacoma Intl

Sun 12/7

8:15 am-8:10 pm

2 stops26h 55m

$479

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

6:15 am-10:28 pm

2 stops25h 13m

Seattle/Tacoma Intl

Sun 12/7

1:40 pm-5:30 pm

2 stops18h 50m

$480

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/14

9:25 am-10:25 pm

2 stops22h 00m

Seattle/Tacoma Intl

Thu 11/27

7:20 am-8:40 am

2 stops16h 20m

$519

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/14

6:30 am-11:45 am

1 stop14h 15m

Seattle/Tacoma Intl

Thu 11/27

3:00 pm-8:40 am

1 stop32h 40m

$602

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 12/26

7:10 am-4:55 pm

1 stop18h 45m

Seattle/Tacoma Intl

Sat 1/10

1:35 pm-11:00 pm

1 stop24h 25m

$861

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 12/21

4:00 pm-8:50 pm

2 stops37h 50m

Seattle/Tacoma Intl

Sat 1/3

7:10 am-5:20 pm

2 stops25h 10m

$1,113

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 12/20

6:30 pm-4:55 pm

1 stop31h 25m

Seattle/Tacoma Intl

Sun 1/4

6:50 pm-10:55 am

1 stop31h 05m

$1,131

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 cheapest month to fly to Seattle?

In general, November 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 $468. If you don’t want to visit Seattle in November, then you should wait until May to fly from Oslo Gardermoen Airport, when ticket prices are also cheap, with an average price of $477.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Oslo Gardermoen Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $536. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Oslo Gardermoen Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $769.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Oslo Gardermoen Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $536 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $662. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $571 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 $480 on momondo.

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

You could potentially save up to 20% 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 October 2025, prices for Oslo Gardermoen Airport to Seattle flights are approximately 25% more expensive 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

Direct flights

None
There are no direct flights from Oslo Gardermoen Airport to Seattle. There are no popular flight routes from Oslo Gardermoen Airport to Seattle.
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  • 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
British AirwaysPriceFrom $362Free CancellationRating
6.7
7,487 reviews
Search British Airways flights
IcelandairPriceFrom $399Free CancellationRating
7.1
562 reviews
Search Icelandair flights
LufthansaPriceFrom $423Free CancellationRating
6.8
7,541 reviews
Search Lufthansa flights
DeltaPriceFrom $452Free CancellationRating
7.9
7,998 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $603Free CancellationRating
7.4
1,548 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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