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Cheap flights from Oslo Gardermoen Airport to Seattle from $403

This is the cheapest round-trip 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 9/8. 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

Air Canada Logo
6:35 am - 6:36 pmOSL-SEA
21h 01m2 stops
Air Canada Logo
7:15 am - 3:40 pmSEA-OSL
23h 25m2 stops
$403Air Canada
Find Deal
Mon, Sep 8 - Wed, Sep 24
Air Canada Logo
6:35 am - 7:31 pmOSL-SEA
21h 56m2 stops
Air Canada Logo
7:15 am - 3:40 pmSEA-OSL
23h 25m2 stops
$404Air Canada
Find Deal
Mon, Sep 8 - Wed, Sep 24
Lufthansa Logo
6:35 am - 11:55 amOSL-SEA
14h 20m1 stop
Lufthansa Logo
6:50 pm - 6:05 pmSEA-OSL
14h 15m1 stop
$439Lufthansa
Find Deal
Mon, Sep 8 - Wed, Sep 24
Lufthansa Logo
6:35 am - 6:36 pmOSL-SEA
21h 01m2 stops
Lufthansa Logo
2:00 pm - 6:00 pmSEA-OSL
19h 00m2 stops
$441Lufthansa
Find Deal
Mon, Sep 8 - Wed, Sep 24
Scandinavian Airlines Logo
6:00 am - 1:50 pmOSL-SEA
16h 50m1 stop
Scandinavian Airlines Logo
4:20 pm - 1:10 pmSEA-OSL
11h 50m1 stop
$453Scandinavian Airlines
Find Deal
Sat, Aug 30 - Fri, Sep 12
Scandinavian Airlines Logo
10:25 am - 1:50 pmOSL-SEA
12h 25m1 stop
Scandinavian Airlines Logo
7:55 pm - 7:15 pmSEA-OSL
38h 20m2 stops
$547Scandinavian Airlines
Find Deal
Mon, Sep 8 - Wed, Sep 24
British Airways Logo
6:30 pm - 4:55 pmOSL-SEA
31h 25m1 stop
British Airways Logo
6:50 pm - 10:35 amSEA-OSL
30h 45m1 stop
$712British Airways
Find Deal
Sat, Dec 20 - Sat, Jan 3
British Airways Logo
6:30 pm - 4:55 pmOSL-SEA
31h 25m1 stop
British Airways Logo
6:50 pm - 10:35 amSEA-OSL
30h 45m1 stop
$716British Airways
Find Deal
Sat, Dec 20 - Sat, Jan 3
Icelandair Logo
1:50 pm - 11:25 amOSL-SEA
30h 35m1 stop
Icelandair Logo
7:00 pm - 3:40 pmSEA-OSL
11h 40m1 stop
$1,429Icelandair
Find Deal
Wed, Sep 10 - Tue, Oct 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
$1,666Icelandair
Find Deal
Mon, Jan 12 - Tue, Jan 20

Air Canada flights from Oslo Gardermoen Airport to Seattle

Our best Air Canada deals on Oslo Gardermoen Airport to Seattle flight tickets
Air Canada
Sep 8
OSL6:35 amOslo Gardermoen
21h 01m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
Sep 24
SEA7:15 amSeattle/Tacoma Intl
23h 25m
2 stops
OSL3:40 pmOslo Gardermoen
$403
Find similar
Air Canada
Sep 8
OSL6:35 amOslo Gardermoen
21h 56m
2 stops
SEA7:31 pmSeattle/Tacoma Intl
Sep 24
SEA7:15 amSeattle/Tacoma Intl
23h 25m
2 stops
OSL3:40 pmOslo Gardermoen
$404
Find similar
Air Canada
Sep 15
OSL6:35 amOslo Gardermoen
21h 01m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
Sep 22
SEA7:15 amSeattle/Tacoma Intl
20h 00m
2 stops
OSL12:15 pmOslo Gardermoen
$435
Find similar

Lufthansa flights from Oslo Gardermoen Airport to Seattle

Our best Lufthansa deals on Oslo Gardermoen Airport to Seattle flight tickets
Lufthansa
Sep 8
OSL6:35 amOslo Gardermoen
14h 20m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Sep 24
SEA6:50 pmSeattle/Tacoma Intl
14h 15m
1 stop
OSL6:05 pmOslo Gardermoen
$439
Find similar
Lufthansa
Sep 8
OSL6:35 amOslo Gardermoen
21h 01m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
Sep 24
SEA2:00 pmSeattle/Tacoma Intl
19h 00m
2 stops
OSL6:00 pmOslo Gardermoen
$441
Find similar
Lufthansa
Jan 4
OSL6:30 pmOslo Gardermoen
26h 40m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Jan 17
SEA2:00 pmSeattle/Tacoma Intl
16h 20m
1 stop
OSL3:20 pmOslo Gardermoen
$530
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 August 3, 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 9/8

6:35 am-6:36 pm

2 stops21h 01m

Seattle/Tacoma Intl

Wed 9/24

7:15 am-3:40 pm

2 stops23h 25m

$403

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/8

6:35 am-7:31 pm

2 stops21h 56m

Seattle/Tacoma Intl

Wed 9/24

7:15 am-3:40 pm

2 stops23h 25m

$404

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/8

6:35 am-11:55 am

1 stop14h 20m

Seattle/Tacoma Intl

Wed 9/24

6:50 pm-6:05 pm

1 stop14h 15m

$439

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/8

6:35 am-6:36 pm

2 stops21h 01m

Seattle/Tacoma Intl

Wed 9/24

2:00 pm-6:00 pm

2 stops19h 00m

$441

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 8/30

6:00 am-1:50 pm

1 stop16h 50m

Seattle/Tacoma Intl

Fri 9/12

4:20 pm-1:10 pm

1 stop11h 50m

$453

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/8

10:25 am-1:50 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 9/24

7:55 pm-7:15 pm

2 stops38h 20m

$547

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 12/20

6:30 pm-4:55 pm

1 stop31h 25m

Seattle/Tacoma Intl

Sat 1/3

6:50 pm-10:35 am

1 stop30h 45m

$712

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 12/20

6:30 pm-4:55 pm

1 stop31h 25m

Seattle/Tacoma Intl

Sat 1/3

6:50 pm-10:35 am

1 stop30h 45m

$716

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 9/10

1:50 pm-11:25 am

1 stop30h 35m

Seattle/Tacoma Intl

Tue 10/7

7:00 pm-3:40 pm

1 stop11h 40m

$1,429

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 1/12

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Tue 1/20

2:35 pm-11:35 am

1 stop12h 00m

$1,666

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, 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 $458. If you don’t want to visit Seattle in October, then you should wait until November to fly from Oslo Gardermoen Airport, when ticket prices are also cheap, with an average price of $460.

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 $574 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 $484 on momondo.

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

You could potentially save up to 14% 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 August 2025, prices for Oslo Gardermoen Airport to Seattle flights are approximately 28% 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

Best Price Found

$407

Fastest flight time

11h 45m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Oslo Gardermoen Airport in the past 72 hours is $407. The best round-trip flight deal from Oslo Gardermoen Airport to Seattle found on momondo in the last 72 hours is $403.
The fastest flight from Oslo Gardermoen Airport to Seattle takes 11h 45m
There are no direct flights from Oslo Gardermoen Airport to Seattle. Popular non-direct route for this connection is Oslo Gardermoen Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
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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 25m 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 $399Free CancellationRating
7.0
522 reviews
Search Icelandair flights
American AirlinesPriceFrom $416Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $419Free CancellationRating
6.6
7,230 reviews
Search British Airways flights
LufthansaPriceFrom $423Free CancellationRating
6.8
7,280 reviews
Search Lufthansa flights
DeltaPriceFrom $452Free CancellationRating
8.0
7,985 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $603Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
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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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