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Cheap flights from Oslo Gardermoen Airport to Washington from $295

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 Washington departing on 3/11. 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 Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
9:30 pm - 5:00 pm
OSL
-
SEA
28h 30m1 stop
Icelandair Logo
2:35 pm - 11:35 am
SEA
-
OSL
12h 00m1 stop
$405Icelandair
Sun, Jan 25 - Sat, Feb 7
Icelandair Logo
9:30 pm - 5:00 pm
OSL
-
SEA
28h 30m1 stop
Icelandair Logo
2:35 pm - 8:35 pm
SEA
-
OSL
21h 00m1 stop
$408Icelandair
Sun, Jan 25 - Sat, Feb 7
Icelandair Logo
1:10 pm - 5:00 pm
OSL
-
SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 am
SEA
-
OSL
12h 00m1 stop
$412Icelandair
Thu, Jan 15 - Wed, Jan 28
British Airways Logo
7:05 am - 4:55 pm
OSL
-
SEA
18h 50m1 stop
British Airways Logo
6:12 am - 10:55 am
SEA
-
OSL
19h 43m2 stops
$446British Airways
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:05 am - 7:16 pm
OSL
-
SEA
22h 11m2 stops
Multiple Airlines Logo
10:05 am - 1:00 pm
SEA
-
OSL
17h 55m2 stops
$449Multiple Airlines
Wed, Jan 28 - Thu, Feb 5
Multiple Airlines Logo
5:00 pm - 11:50 am
OSL
-
SEA
27h 50m1 stop
Multiple Airlines Logo
2:10 pm - 4:20 pm
SEA
-
OSL
17h 10m1 stop
$451Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
British Airways Logo
7:10 am - 3:55 pm
OSL
-
PDX
17h 45m1 stop
British Airways Logo
5:45 pm - 5:30 pm
PDX
-
OSL
14h 45m1 stop
$495British Airways
Fri, Jan 16 - Fri, Jan 23
Lufthansa Logo
6:15 am - 6:30 pm
OSL
-
PDX
21h 15m2 stops
Lufthansa Logo
7:45 am - 1:05 pm
PDX
-
OSL
20h 20m2 stops
$497Lufthansa
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
9:35 am - 2:46 pm
OSL
-
PDX
38h 11m2 stops
United Airlines Logo
1:24 pm - 5:40 pm
PDX
-
OSL
19h 16m3 stops
$502United Airlines
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
1:50 pm - 10:46 pm
OSL
-
PDX
41h 56m2 stops
United Airlines Logo
7:45 pm - 11:00 am
PDX
-
OSL
54h 15m2 stops
$1,002United Airlines
Wed, Dec 17 - Mon, Jan 5

British Airways flights from Oslo Gardermoen Airport to State of Washington

Our best British Airways deals on Oslo Gardermoen Airport to State of Washington flight tickets
British Airways
Jan 15
OSL7:05 amOslo Gardermoen
18h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Jan 28
SEA6:12 amSeattle/Tacoma Intl
19h 43m
2 stops
OSL10:55 amOslo Gardermoen
$446
Find similar
British Airways
Jan 25
OSL3:05 pmOslo Gardermoen
34h 50m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Feb 7
SEA10:50 amSeattle/Tacoma Intl
27h 10m
2 stops
OSL11:00 pmOslo Gardermoen
$476
Find similar
British Airways
Feb 28
OSL11:20 amOslo Gardermoen
14h 35m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Mar 18
SEA7:50 pmSeattle/Tacoma Intl
18h 50m
1 stop
OSL10:40 pmOslo Gardermoen
$487
Find similar

Delta flights from Oslo Gardermoen Airport to State of Washington

Our best Delta deals on Oslo Gardermoen Airport to State of Washington flight tickets
Delta
Jan 15
OSL6:30 amOslo Gardermoen
14h 20m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Jan 28
SEA7:40 amSeattle/Tacoma Intl
21h 10m
2 stops
OSL1:50 pmOslo Gardermoen
$460
Find similar
Delta
Jan 16
OSL6:30 amOslo Gardermoen
19h 28m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
Jan 23
SEA1:38 pmSeattle/Tacoma Intl
20h 12m
2 stops
OSL6:50 pmOslo Gardermoen
$466
Find similar
Delta
Jan 25
OSL6:30 amOslo Gardermoen
14h 20m
1 stop
SEA11:50 amSeattle/Tacoma Intl
Feb 7
SEA11:17 amSeattle/Tacoma Intl
20h 03m
2 stops
OSL4:20 pmOslo Gardermoen
$467
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen Airport to State of Washington 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 December 4, 2025.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 1/25

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-11:35 am

1 stop12h 00m

$405

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 1/25

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-8:35 pm

1 stop21h 00m

$408

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-11:35 am

1 stop12h 00m

$412

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

7:05 am-4:55 pm

1 stop18h 50m

Seattle/Tacoma Intl

Wed 1/28

6:12 am-10:55 am

2 stops19h 43m

$446

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 1/28

6:05 am-7:16 pm

2 stops22h 11m

Seattle/Tacoma Intl

Thu 2/5

10:05 am-1:00 pm

2 stops17h 55m

$449

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

5:00 pm-11:50 am

1 stop27h 50m

Seattle/Tacoma Intl

Wed 1/28

2:10 pm-4:20 pm

1 stop17h 10m

$451

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 1/16

7:10 am-3:55 pm

1 stop17h 45m

Portland

Fri 1/23

5:45 pm-5:30 pm

1 stop14h 45m

$495

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 1/16

6:15 am-6:30 pm

2 stops21h 15m

Portland

Fri 1/23

7:45 am-1:05 pm

2 stops20h 20m

$497

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 1/16

9:35 am-2:46 pm

2 stops38h 11m

Portland

Fri 1/23

1:24 pm-5:40 pm

3 stops19h 16m

$502

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 12/17

1:50 pm-10:46 pm

2 stops41h 56m

Portland

Mon 1/5

7:45 pm-11:00 am

2 stops54h 15m

$1,002

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 Washington from

How to get the cheapest flight ticket from Oslo Gardermoen Airport to State of Washington

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 State of Washington?

The month of May is, on average, the cheapest month to fly to State of Washington from Oslo Gardermoen Airport, with most prices found around $477. If you aren’t able to travel to State of Washington during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $481.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Oslo Gardermoen Airport to State of Washington is on a Saturday. Travelers who choose to depart for State of Washington on a Saturday will often find tickets for as low as $536. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Oslo Gardermoen Airport to State of Washington for around $769.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $536. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $662 on average. Flights to State of Washington from Oslo Gardermoen Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Oslo Gardermoen Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $574 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Oslo Gardermoen Airport for as low as $489 on momondo.

Can stopping save me money on Oslo Gardermoen Airport to State of Washington flights?

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

Cheap Oslo Gardermoen Airport to State of Washington flight deals and tips

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

Fastest flight time

12h 50m

Direct flights

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

  • When did momondo last update prices for flights from Oslo Gardermoen Airport to Washington?

    Prices for flights from Oslo Gardermoen Airport to Washington were last updated today.

  • How many operators does momondo search for flights from Oslo Gardermoen Airport to Washington?

  • How old do you have to be to fly from Oslo Gardermoen Airport to Washington?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oslo Gardermoen Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The necessary travel and health documents for your Washington 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.

Best airlines flying from Oslo Gardermoen Airport to State of Washington

Compare and see reviews for airlines that fly from Oslo Gardermoen Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $395Free CancellationRating
7.0
584 reviews
Search Icelandair flights
LufthansaPriceFrom $436Free CancellationRating
6.8
7,612 reviews
Search Lufthansa flights
British AirwaysPriceFrom $442Free CancellationRating
6.7
7,562 reviews
Search British Airways flights
DeltaPriceFrom $452Free CancellationRating
7.9
8,010 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $603Free CancellationRating
7.4
1,592 reviews
Search Scandinavian Airlines flights

Why use momondo?

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

It is quick and easy to find Oslo to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.

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

Yes. All flights to Washington from Oslo on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Oslo and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Washington 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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