What airlines fly to State of Washington?

Icelandair, Scandinavian Airlines and Lufthansa 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 45% 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.

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

Finnair, British Airways, 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 6 operators available for flights from Oslo to Washington as of March 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.

$309 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.

4:30 pm - 8:40 pm

OSL

SEA

13h 10m

1 stop

7:00 pm - 12:35 pm

SEA

OSL

32h 35m

1 stop

$377Icelandair

Thu, Apr 2 - Thu, Apr 16

1:50 pm - 8:40 pm

OSL

SEA

15h 50m

1 stop

7:00 pm - 12:35 pm

SEA

OSL

32h 35m

1 stop

$381Icelandair

Thu, Apr 9 - Thu, Apr 23

4:30 pm - 8:40 pm

OSL

SEA

13h 10m

1 stop

7:00 pm - 12:35 pm

SEA

OSL

32h 35m

1 stop

$393Icelandair

Thu, Apr 2 - Thu, Apr 16

9:20 am - 11:10 am

OSL

PDX

34h 50m

1 stop

1:05 pm - 6:35 pm

PDX

OSL

20h 30m

1 stop

$448KLM

Sun, Apr 12 - Mon, Apr 27

5:25 pm - 11:10 am

OSL

PDX

26h 45m

1 stop

1:05 pm - 8:45 am

PDX

OSL

34h 40m

1 stop

$480KLM

Sun, Apr 12 - Sat, Apr 25

11:50 am - 8:59 pm

OSL

PDX

18h 09m

2 stops

1:05 pm - 4:20 pm

PDX

OSL

18h 15m

1 stop

$535Delta

Sun, Apr 5 - Sun, Apr 12

7:10 am - 6:34 pm

OSL

PDX

20h 24m

2 stops

3:30 pm - 10:05 pm

PDX

OSL

21h 35m

2 stops

$578Lufthansa

Sun, Apr 12 - Mon, Apr 27

7:10 am - 6:34 pm

OSL

PDX

20h 24m

2 stops

12:50 pm - 5:55 pm

PDX

OSL

20h 05m

2 stops

$580Lufthansa

Sun, Apr 12 - Mon, Apr 27

6:00 am - 8:43 pm

TRF

SEA

23h 43m

2 stops

7:15 am - 2:30 pm

SEA

TRF

22h 15m

2 stops

$626Scandinavian Airlines

Fri, Apr 24 - Mon, Apr 27

6:00 am - 8:43 pm

TRF

SEA

23h 43m

2 stops

7:15 am - 12:25 am

SEA

TRF

32h 10m

2 stops

$649Scandinavian Airlines

Fri, Apr 24 - Mon, Apr 27

Finnair flights from Oslo to State of Washington

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

Finnair

Apr 21

OSL8:35 amOslo Gardermoen

20h 01m

2 stops

SEA7:36 pmSeattle/Tacoma Intl

Apr 28

SEA7:09 amSeattle/Tacoma Intl

24h 26m

2 stops

OSL4:35 pmOslo Gardermoen

$497

Finnair

Apr 21

OSL8:35 amOslo Gardermoen

20h 01m

2 stops

SEA7:36 pmSeattle/Tacoma Intl

Apr 28

SEA7:09 amSeattle/Tacoma Intl

24h 26m

2 stops

OSL4:35 pmOslo Gardermoen

$506

Finnair

Apr 12

OSL8:30 pmOslo Gardermoen

34h 08m

2 stops

PDX9:38 pmPortland

Apr 25

PDX6:22 amPortland

28h 23m

2 stops

OSL7:45 pmOslo Gardermoen

$627

Icelandair flights from Oslo to State of Washington

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

Icelandair

Apr 2

OSL4:30 pmOslo Gardermoen

13h 10m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Apr 16

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

$377

Icelandair

Apr 2

OSL4:30 pmOslo Gardermoen

13h 10m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Apr 16

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

$393

Icelandair

Apr 2

OSL4:30 pmOslo Gardermoen

13h 10m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Apr 16

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

$396

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 4/2

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Thu 4/16

7:00 pm-12:35 pm

1 stop32h 35m

$377

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 4/9

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-12:35 pm

1 stop32h 35m

$381

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 4/2

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Thu 4/16

7:00 pm-12:35 pm

1 stop32h 35m

$393

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/12

9:20 am-11:10 am

1 stop34h 50m

Portland

Mon 4/27

1:05 pm-6:35 pm

1 stop20h 30m

$448

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/12

5:25 pm-11:10 am

1 stop26h 45m

Portland

Sat 4/25

1:05 pm-8:45 am

1 stop34h 40m

$480

Quickest round-trip

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/5

11:50 am-8:59 pm

2 stops18h 09m

Portland

Sun 4/12

1:05 pm-4:20 pm

1 stop18h 15m

$535

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/12

7:10 am-6:34 pm

2 stops20h 24m

Portland

Mon 4/27

3:30 pm-10:05 pm

2 stops21h 35m

$578

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/12

7:10 am-6:34 pm

2 stops20h 24m

Portland

Mon 4/27

12:50 pm-5:55 pm

2 stops20h 05m

$580

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 4/24

6:00 am-8:43 pm

2 stops23h 43m

Seattle/Tacoma Intl

Mon 4/27

7:15 am-2:30 pm

2 stops22h 15m

$626

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 4/24

6:00 am-8:43 pm

2 stops23h 43m

Seattle/Tacoma Intl

Mon 4/27

7:15 am-12:25 am

2 stops32h 10m

$649

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 $504. If you aren’t able to travel to State of Washington during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $511.

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 $521 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	13h 10m
Direct flights	None

The fastest flight from Oslo to State of Washington takes 13h 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

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 6 operators available for flights from Oslo to Washington as of March 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
Lufthansa	PriceFrom $423	Free Cancellation	Rating 6.8 7,839 reviews	Search Lufthansa flights
Icelandair	PriceFrom $443	Free Cancellation	Rating 7.1 619 reviews	Search Icelandair flights
Delta	PriceFrom $455	Free Cancellation	Rating 7.9 8,276 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $603	Free Cancellation	Rating 7.3 1,708 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.