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

Lufthansa, SWISS, and Icelandair are the most popular carriers operating from Oslo to Washington

What airlines fly to State of Washington?

Icelandair, Lufthansa and British Airways 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 30% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 6 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 7 operators available for flights from Oslo to Washington as of August 2025.

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 2025

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Find the cheapest flights from Oslo to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

6:35 am - 6:36 pmOSL-SEA

21h 01m2 stops

10:00 am - 3:40 pmSEA-OSL

20h 40m2 stops

$417Air Canada

Find Deal

Mon, Sep 8 - Wed, Sep 24

6:35 am - 11:55 amOSL-SEA

14h 20m1 stop

6:50 pm - 10:10 pmSEA-OSL

18h 20m1 stop

$425Lufthansa

Find Deal

Fri, Sep 19 - Fri, Sep 26

4:30 pm - 11:25 amOSL-SEA

27h 55m1 stop

3:45 pm - 3:25 pmSEA-OSL

14h 40m1 stop

$430Icelandair

Find Deal

Fri, Sep 5 - Sun, Sep 21

4:30 pm - 8:40 pmOSL-SEA

13h 10m1 stop

7:00 pm - 3:45 pmSEA-OSL

11h 45m1 stop

$437Icelandair

Find Deal

Mon, Sep 22 - Sun, Oct 5

8:00 am - 7:09 pmOSL-SEA

20h 09m2 stops

1:30 pm - 11:30 pmSEA-OSL

25h 00m1 stop

$465British Airways

Find Deal

Mon, Sep 8 - Wed, Sep 24

7:45 am - 7:25 pmOSL-PDX

20h 40m2 stops

7:31 am - 10:50 amPDX-OSL

18h 19m2 stops

$470British Airways

Find Deal

Thu, Sep 4 - Thu, Sep 18

11:50 am - 10:25 pmOSL-SEA

19h 35m2 stops

1:30 pm - 4:40 pmSEA-OSL

18h 10m1 stop

$486Delta

Find Deal

Fri, Sep 5 - Sun, Sep 21

11:50 am - 10:25 pmOSL-SEA

19h 35m2 stops

6:00 am - 11:05 amSEA-OSL

20h 05m2 stops

$492Delta

Find Deal

Fri, Sep 5 - Sun, Sep 21

9:00 am - 1:50 pmOSL-SEA

13h 50m1 stop

4:20 pm - 2:10 pmSEA-OSL

12h 50m1 stop

$541Scandinavian Airlines

Find Deal

Fri, Aug 22 - Wed, Oct 22

2:55 pm - 1:50 pmTRF-SEA

31h 55m1 stop

4:20 pm - 2:20 pmSEA-TRF

13h 00m1 stop

$579Scandinavian Airlines

Find Deal

Fri, Sep 5 - Sun, Sep 21

Lufthansa flights from Oslo to State of Washington

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

Lufthansa

Sep 19

OSL6:35 amOslo Gardermoen

14h 20m

1 stop

SEA11:55 amSeattle/Tacoma Intl

Sep 26

SEA6:50 pmSeattle/Tacoma Intl

18h 20m

1 stop

OSL10:10 pmOslo Gardermoen

$425

Find similar

Lufthansa

Sep 8

OSL6:35 amOslo Gardermoen

14h 20m

1 stop

SEA11:55 amSeattle/Tacoma Intl

Sep 24

SEA6:50 pmSeattle/Tacoma Intl

18h 20m

1 stop

OSL10:10 pmOslo Gardermoen

$444

Find similar

Lufthansa

Sep 8

OSL6:35 amOslo Gardermoen

21h 01m

2 stops

SEA6:36 pmSeattle/Tacoma Intl

Sep 24

SEA6:50 pmSeattle/Tacoma Intl

18h 20m

1 stop

OSL10:10 pmOslo Gardermoen

$446

Find similar

Icelandair flights from Oslo to State of Washington

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

Icelandair

Sep 5

OSL4:30 pmOslo Gardermoen

27h 55m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Sep 21

SEA3:45 pmSeattle/Tacoma Intl

14h 40m

1 stop

OSL3:25 pmOslo Gardermoen

$430

Find similar

Icelandair

Sep 22

OSL4:30 pmOslo Gardermoen

13h 10m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Oct 5

SEA7:00 pmSeattle/Tacoma Intl

11h 45m

1 stop

OSL3:45 pmOslo Gardermoen

$437

Find similar

Icelandair

Sep 4

OSL4:30 pmOslo Gardermoen

34h 25m

1 stop

PDX5:55 pmPortland

Sep 18

PDX3:20 pmPortland

12h 15m

1 stop

OSL12:35 pmOslo Gardermoen

$516

Find similar

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

10:00 am-3:40 pm

2 stops20h 40m

$417

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/19

6:35 am-11:55 am

1 stop14h 20m

Seattle/Tacoma Intl

Fri 9/26

6:50 pm-10:10 pm

1 stop18h 20m

$425

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/5

4:30 pm-11:25 am

1 stop27h 55m

Seattle/Tacoma Intl

Sun 9/21

3:45 pm-3:25 pm

1 stop14h 40m

$430

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/22

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Sun 10/5

7:00 pm-3:45 pm

1 stop11h 45m

$437

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 9/8

8:00 am-7:09 pm

2 stops20h 09m

Seattle/Tacoma Intl

Wed 9/24

1:30 pm-11:30 pm

1 stop25h 00m

$465

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 9/4

7:45 am-7:25 pm

2 stops20h 40m

Portland

Thu 9/18

7:31 am-10:50 am

2 stops18h 19m

$470

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/5

11:50 am-10:25 pm

2 stops19h 35m

Seattle/Tacoma Intl

Sun 9/21

1:30 pm-4:40 pm

1 stop18h 10m

$486

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 9/5

11:50 am-10:25 pm

2 stops19h 35m

Seattle/Tacoma Intl

Sun 9/21

6:00 am-11:05 am

2 stops20h 05m

$492

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 8/22

9:00 am-1:50 pm

1 stop13h 50m

Seattle/Tacoma Intl

Wed 10/22

4:20 pm-2:10 pm

1 stop12h 50m

$541

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 9/5

2:55 pm-1:50 pm

1 stop31h 55m

Seattle/Tacoma Intl

Sun 9/21

4:20 pm-2:20 pm

1 stop13h 00m

$579

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 $458. If you aren’t able to travel to State of Washington during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $460.

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

The cheapest day to depart from Oslo 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 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 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 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 for as low as $484 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

Best Price Found	$481
Fastest flight time	12h 55m
Direct flights	None
Airports in State of Washington	2 airports

The best one-way flight to State of Washington from Oslo in the past 72 hours is $481. The best round-trip flight deal from Oslo to State of Washington found on momondo in the last 72 hours is $417.

The fastest flight from Oslo to State of Washington takes 12h 55m

There are no direct flights from Oslo to State of Washington. Popular non-direct routes for this connection are Oslo Sandefjord Airport - Portland Airport, Oslo Gardermoen Airport - Seattle/Tacoma Intl Airport and Oslo Gardermoen Airport - Portland Airport.

There are 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)

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 7 operators available for flights from Oslo to Washington as of August 2025.
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 $399	Free Cancellation	Rating 7.0 524 reviews	Search Icelandair flights
American Airlines	PriceFrom $416	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $419	Free Cancellation	Rating 6.6 7,245 reviews	Search British Airways flights
Lufthansa	PriceFrom $423	Free Cancellation	Rating 6.8 7,289 reviews	Search Lufthansa flights
Delta	PriceFrom $452	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $603	Free Cancellation	Rating 7.4 1,465 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.