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

Finnair, Icelandair, and Scandinavian Airlines are the most popular carriers operating from Oslo to Washington

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 3 operators available for flights from Oslo to Washington as of July 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.

$417 Cheap Flights from Oslo to Washington in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:55 am - 11:55 am

OSL

SEA

14h 00m

1 stop

6:50 pm - 6:00 pm

SEA

OSL

14h 10m

1 stop

$474Lufthansa

Tue, Aug 25 - Tue, Sep 1

4:30 pm - 11:45 am

OSL

SEA

28h 15m

1 stop

3:40 pm - 12:35 pm

SEA

OSL

11h 55m

1 stop

$502Icelandair

Mon, Sep 7 - Sun, Sep 20

9:00 pm - 1:45 pm

OSL

SEA

25h 45m

1 stop

3:55 pm - 2:55 pm

SEA

OSL

14h 00m

1 stop

$503Scandinavian Airlines

Fri, Sep 4 - Sun, Sep 20

9:00 pm - 1:45 pm

OSL

SEA

25h 45m

1 stop

3:55 pm - 12:55 pm

SEA

OSL

12h 00m

1 stop

$507Scandinavian Airlines

Fri, Sep 4 - Sun, Sep 20

4:30 pm - 8:40 pm

OSL

SEA

13h 10m

1 stop

7:00 pm - 12:35 pm

SEA

OSL

32h 35m

1 stop

$526Icelandair

Fri, Sep 11 - Thu, Sep 24

4:30 pm - 5:55 pm

OSL

SEA

34h 25m

1 stop

3:40 pm - 3:25 pm

SEA

OSL

14h 45m

1 stop

$536Icelandair

Mon, Oct 12 - Fri, Oct 16

12:50 pm - 4:00 pm

OSL

SEA

12h 10m

1 stop

5:40 pm - 7:45 pm

SEA

OSL

17h 05m

1 stop

$544Finnair

Mon, Aug 31 - Mon, Sep 14

12:50 pm - 4:00 pm

OSL

SEA

12h 10m

1 stop

1:30 pm - 11:40 pm

SEA

OSL

25h 10m

1 stop

$549American Airlines

Fri, Sep 4 - Sun, Sep 20

7:45 am - 5:40 pm

OSL

PDX

18h 55m

1 stop

5:45 pm - 10:40 pm

PDX

OSL

19h 55m

1 stop

$773British Airways

Thu, Oct 15 - Mon, Nov 30

7:45 am - 6:00 pm

OSL

PDX

19h 15m

2 stops

7:30 pm - 6:40 pm

PDX

OSL

14h 10m

1 stop

$888British Airways

Wed, Aug 19 - Mon, Jul 5

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Finnair flights from Oslo to State of Washington

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

Finnair

Aug 31

OSL12:50 pmOslo Gardermoen

12h 10m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

Sep 14

SEA5:40 pmSeattle/Tacoma Intl

17h 05m

1 stop

OSL7:45 pmOslo Gardermoen

$544

Finnair

Sep 11

OSL12:50 pmOslo Gardermoen

12h 10m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

Sep 18

SEA1:40 pmSeattle/Tacoma Intl

17h 55m

2 stops

OSL4:35 pmOslo Gardermoen

$565

Finnair

Sep 11

OSL8:35 amOslo Gardermoen

19h 45m

2 stops

PDX7:20 pmPortland

Sep 16

PDX11:48 amPortland

22h 57m

2 stops

OSL7:45 pmOslo Gardermoen

$746

Delta flights from Oslo to State of Washington

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

Delta

Nov 21

OSL6:05 amOslo Gardermoen

14h 42m

1 stop

SEA11:47 amSeattle/Tacoma Intl

Dec 5

SEA4:05 pmSeattle/Tacoma Intl

15h 05m

1 stop

OSL4:10 pmOslo Gardermoen

$571

Delta

Nov 21

OSL6:05 amOslo Gardermoen

14h 42m

1 stop

SEA11:47 amSeattle/Tacoma Intl

Dec 5

SEA11:35 amSeattle/Tacoma Intl

19h 35m

2 stops

OSL4:10 pmOslo Gardermoen

$574

Delta

Sep 7

OSL6:30 amOslo Gardermoen

21h 35m

2 stops

SEA7:05 pmSeattle/Tacoma Intl

Sep 20

SEA7:15 amSeattle/Tacoma Intl

18h 50m

2 stops

OSL11:05 amOslo Gardermoen

$582

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 8/25

6:55 am-11:55 am

1 stop14h 00m

Seattle/Tacoma Intl

Tue 9/1

6:50 pm-6:00 pm

1 stop14h 10m

$474

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/7

4:30 pm-11:45 am

1 stop28h 15m

Seattle/Tacoma Intl

Sun 9/20

3:40 pm-12:35 pm

1 stop11h 55m

$502

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/4

9:00 pm-1:45 pm

1 stop25h 45m

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-2:55 pm

1 stop14h 00m

$503

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/4

9:00 pm-1:45 pm

1 stop25h 45m

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-12:55 pm

1 stop12h 00m

$507

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/11

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Thu 9/24

7:00 pm-12:35 pm

1 stop32h 35m

$526

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/12

4:30 pm-5:55 pm

1 stop34h 25m

Seattle/Tacoma Intl

Fri 10/16

3:40 pm-3:25 pm

1 stop14h 45m

$536

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 8/31

12:50 pm-4:00 pm

1 stop12h 10m

Seattle/Tacoma Intl

Mon 9/14

5:40 pm-7:45 pm

1 stop17h 05m

$544

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/4

12:50 pm-4:00 pm

1 stop12h 10m

Seattle/Tacoma Intl

Sun 9/20

1:30 pm-11:40 pm

1 stop25h 10m

$549

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 10/15

7:45 am-5:40 pm

1 stop18h 55m

Portland

Mon 11/30

5:45 pm-10:40 pm

1 stop19h 55m

$773

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 8/19

7:45 am-6:00 pm

2 stops19h 15m

Portland

Mon 7/5

7:30 pm-6:40 pm

1 stop14h 10m

$888

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 October is, on average, the cheapest month to fly to State of Washington from Oslo, with most prices found around $525. If you aren’t able to travel to State of Washington during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $548.

How far in advance should I book a flight from Oslo to 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 $646 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 $595 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 10m
Direct flights	None

The fastest flight from Oslo to State of Washington takes 12h 10m

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

Frequently asked questions about flying from Oslo to Washington

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 3 operators available for flights from Oslo to Washington as of July 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 $443	Free Cancellation	Rating 7.0 716 reviews		Search Icelandair flights
Scandinavian Airlines	PriceFrom $588	Free Cancellation	Rating 7.4 1,906 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.