What is the cheapest airline that flies from Oslo to Washington?

Finnair and British Airways are the most popular carriers operating from Oslo to Washington

What airlines fly to State of Washington?

Icelandair, Lufthansa and Scandinavian Airlines are the top three most popular airlines that fly to State of Washington from Oslo according to our data. Icelandair is the first choice among our users, with 35% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

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

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

There are 5 operators available for flights from Oslo to Washington as of January 2026.

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

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 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.

$278 Cheap Flights from Oslo to Washington in 2026

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Find the cheapest flights from Oslo to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 pm - 5:00 pm

OSL

SEA

28h 30m

1 stop

2:35 pm - 11:35 am

SEA

OSL

12h 00m

1 stop

$342Icelandair

Sun, Feb 1 - Mon, Feb 16

9:30 pm - 5:00 pm

OSL

SEA

28h 30m

1 stop

2:35 pm - 11:35 am

SEA

OSL

12h 00m

1 stop

$343Icelandair

Sun, Feb 1 - Mon, Feb 16

9:30 pm - 5:00 pm

OSL

SEA

28h 30m

1 stop

2:35 pm - 11:35 am

SEA

OSL

12h 00m

1 stop

$350Icelandair

Sun, Feb 1 - Mon, Feb 16

1:50 pm - 8:40 pm

OSL

SEA

15h 50m

1 stop

3:40 pm - 12:35 pm

SEA

OSL

11h 55m

1 stop

$397Icelandair

Wed, Apr 22 - Sun, Apr 26

5:10 pm - 11:35 am

OSL

SEA

27h 25m

1 stop

1:35 pm - 11:20 pm

SEA

OSL

24h 45m

1 stop

$424Multiple Airlines

Wed, May 20 - Tue, Jun 16

6:10 am - 1:20 pm

OSL

SEA

16h 10m

1 stop

2:00 pm - 3:40 pm

SEA

OSL

16h 40m

1 stop

$427Lufthansa

Fri, Feb 27 - Fri, Mar 6

12:25 pm - 9:58 pm

OSL

PDX

18h 33m

2 stops

6:45 pm - 10:55 am

PDX

OSL

32h 10m

1 stop

$487American Airlines

Sun, Mar 1 - Sun, Mar 8

7:45 am - 5:40 pm

OSL

PDX

18h 55m

1 stop

7:30 pm - 10:30 am

PDX

OSL

30h 00m

1 stop

$491American Airlines

Wed, Apr 22 - Sun, Apr 26

6:00 am - 1:45 pm

TRF

SEA

16h 45m

1 stop

3:55 pm - 2:30 pm

SEA

TRF

13h 35m

1 stop

$604Scandinavian Airlines

Sat, May 23 - Sat, Jun 13

6:00 am - 1:45 pm

TRF

SEA

16h 45m

1 stop

3:55 pm - 2:30 pm

SEA

TRF

13h 35m

1 stop

$629Scandinavian Airlines

Fri, May 22 - Sat, Jun 13

Delta flights from Oslo to State of Washington

Our best Delta deals on Oslo to State of Washington flight tickets

Delta

Feb 12

OSL6:30 amOslo Gardermoen

14h 10m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Feb 19

SEA7:25 amSeattle/Tacoma Intl

19h 25m

2 stops

OSL11:50 amOslo Gardermoen

$495

Delta

Jan 22

OSL6:30 amOslo Gardermoen

14h 20m

1 stop

SEA11:50 amSeattle/Tacoma Intl

Feb 7

SEA7:10 amSeattle/Tacoma Intl

16h 30m

2 stops

OSL8:40 amOslo Gardermoen

$501

Delta

Jan 22

OSL9:25 amOslo Gardermoen

22h 00m

2 stops

SEA10:25 pmSeattle/Tacoma Intl

Feb 7

SEA6:05 amSeattle/Tacoma Intl

17h 35m

2 stops

OSL8:40 amOslo Gardermoen

$506

United Airlines flights from Oslo to State of Washington

Our best United Airlines deals on Oslo to State of Washington flight tickets

United Airlines

Mar 24

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA1:10 pmSeattle/Tacoma Intl

Apr 7

SEA11:59 pmSeattle/Tacoma Intl

32h 16m

2 stops

OSL5:15 pmOslo Gardermoen

$510

United Airlines

Mar 25

OSL9:45 amOslo Gardermoen

41h 18m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

Apr 8

SEA6:50 pmSeattle/Tacoma Intl

14h 05m

1 stop

OSL5:55 pmOslo Gardermoen

$512

United Airlines

Mar 23

OSL6:15 amOslo Gardermoen

22h 43m

2 stops

SEA8:58 pmSeattle/Tacoma Intl

Apr 7

SEA2:10 pmSeattle/Tacoma Intl

18h 55m

1 stop

OSL6:05 pmOslo Gardermoen

$513

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/1

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-11:35 am

1 stop12h 00m

$342

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/1

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-11:35 am

1 stop12h 00m

$343

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/1

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-11:35 am

1 stop12h 00m

$350

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 4/22

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Sun 4/26

3:40 pm-12:35 pm

1 stop11h 55m

$397

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 5/20

5:10 pm-11:35 am

1 stop27h 25m

Seattle/Tacoma Intl

Tue 6/16

1:35 pm-11:20 pm

1 stop24h 45m

$424

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 2/27

6:10 am-1:20 pm

1 stop16h 10m

Seattle/Tacoma Intl

Fri 3/6

2:00 pm-3:40 pm

1 stop16h 40m

$427

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 3/1

12:25 pm-9:58 pm

2 stops18h 33m

Portland

Sun 3/8

6:45 pm-10:55 am

1 stop32h 10m

$487

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

7:45 am-5:40 pm

1 stop18h 55m

Portland

Sun 4/26

7:30 pm-10:30 am

1 stop30h 00m

$491

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sat 5/23

6:00 am-1:45 pm

1 stop16h 45m

Seattle/Tacoma Intl

Sat 6/13

3:55 pm-2:30 pm

1 stop13h 35m

$604

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 5/22

6:00 am-1:45 pm

1 stop16h 45m

Seattle/Tacoma Intl

Sat 6/13

3:55 pm-2:30 pm

1 stop13h 35m

$629

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oslo 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

Prices

Airlines

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, with most prices found around $484. If you aren’t able to travel to State of Washington during the month of May, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $505.

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 when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $610 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 for as low as $503 on momondo.

Cheap Oslo to State of Washington flight deals and tips

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

Fastest flight time	12h 50m
Direct flights	None

The fastest flight from Oslo to State of Washington takes 12h 50m

There are no direct flights from Oslo to State of Washington. There are no popular flight routes from Oslo to State of Washington.

Search flight deals

When did momondo last update prices for flights from Oslo to Washington?
Prices for flights from Oslo to Washington were last updated today.
How many operators does momondo search for flights from Oslo to Washington?
There are 5 operators available for flights from Oslo to Washington as of January 2026.
How old do you have to be to fly from Oslo to Washington?
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 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 to State of Washington

Compare and see reviews for airlines that fly from Oslo to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $395	Free Cancellation	Rating 7.1 596 reviews	Search Icelandair flights
Lufthansa	PriceFrom $436	Free Cancellation	Rating 6.8 7,715 reviews	Search Lufthansa flights
Delta	PriceFrom $452	Free Cancellation	Rating 7.9 8,049 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $603	Free Cancellation	Rating 7.3 1,652 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?

momondo does allow users to show only those flights to Washington from Oslo which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Oslo to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.