What airlines fly to Oslo?

Icelandair, Scandinavian Airlines and Delta are the top three most popular airlines that fly to Oslo from State of Washington according to our data. Icelandair is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 8 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Oslo?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Oslo you fly into. For example, flying from Seattle to Oslo Gardermoen Airport takes 11h 25m on average. On the other hand, flying from Spokane to Oslo Gardermoen Airport takes 15h 15m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

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

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

Prices for flights from Washington to Oslo are updated daily.

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

There are 8 operators available for flights from Washington to Oslo as of March 2026.

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

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 Washington to Oslo.

What documentation or ID do you need to fly to Oslo?

The required travel and health documents for your Oslo trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oslo. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$169 Cheap Flights from Washington to Oslo in 2026

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Find the cheapest flights from Washington to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 12:35 pm

SEA

OSL

11h 55m

1 stop

1:50 pm - 5:55 pm

OSL

SEA

13h 05m

1 stop

$362Icelandair

Mon, Apr 13 - Mon, Apr 27

3:30 pm - 12:35 pm

PDX

OSL

12h 05m

1 stop

4:30 pm - 6:00 pm

OSL

PDX

34h 30m

1 stop

$364Icelandair

Mon, Apr 27 - Tue, May 12

7:00 pm - 12:25 am

SEA

TRF

20h 25m

2 stops

6:00 am - 5:55 pm

TRF

SEA

20h 55m

2 stops

$662Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

3:55 pm - 2:30 pm

SEA

TRF

13h 35m

1 stop

6:00 am - 1:45 pm

TRF

SEA

16h 45m

1 stop

$673Scandinavian Airlines

Tue, Sep 8 - Tue, Sep 15

3:55 pm - 8:25 pm

SEA

TRF

19h 30m

1 stop

6:00 am - 1:45 pm

TRF

SEA

16h 45m

1 stop

$675Scandinavian Airlines

Tue, Jul 28 - Tue, Aug 11

1:05 pm - 9:10 pm

PDX

TRF

23h 05m

2 stops

9:45 am - 11:10 am

TRF

PDX

34h 25m

2 stops

$758KLM

Mon, Apr 27 - Tue, May 12

1:22 pm - 10:20 pm

GEG

OSL

23h 58m

2 stops

7:50 am - 8:33 pm

OSL

GEG

21h 43m

2 stops

$774Multiple Airlines

Fri, May 1 - Fri, May 8

1:46 pm - 3:25 pm

GEG

OSL

40h 39m

2 stops

11:45 am - 3:15 pm

OSL

GEG

36h 30m

2 stops

$796United Airlines

Sun, Apr 12 - Sun, Apr 19

1:05 pm - 9:10 pm

PDX

TRF

23h 05m

2 stops

3:15 pm - 11:10 am

TRF

PDX

28h 55m

2 stops

$852KLM

Mon, Apr 27 - Sun, May 10

1:41 pm - 2:50 pm

GEG

OSL

40h 09m

2 stops

11:45 am - 12:37 pm

OSL

GEG

57h 52m

2 stops

$1,086United Airlines

Fri, Jul 17 - Sun, Jul 26

Icelandair flights from State of Washington to Oslo

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

Icelandair

Apr 13

SEA3:40 pmSeattle/Tacoma Intl

11h 55m

1 stop

OSL12:35 pmOslo Gardermoen

Apr 27

OSL1:50 pmOslo Gardermoen

13h 05m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

$362

Icelandair

Apr 27

PDX3:30 pmPortland

12h 05m

1 stop

OSL12:35 pmOslo Gardermoen

May 12

OSL4:30 pmOslo Gardermoen

34h 30m

1 stop

PDX6:00 pmPortland

$364

Icelandair

Apr 13

SEA3:40 pmSeattle/Tacoma Intl

11h 55m

1 stop

OSL12:35 pmOslo Gardermoen

Apr 27

OSL1:50 pmOslo Gardermoen

13h 05m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

$365

KLM flights from State of Washington to Oslo

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

KLM

Apr 27

PDX1:05 pmPortland

14h 25m

1 stop

OSL12:30 pmOslo Gardermoen

May 10

OSL7:15 pmOslo Gardermoen

24h 55m

1 stop

PDX11:10 amPortland

$469

KLM

Apr 30

PDX1:05 pmPortland

22h 50m

1 stop

OSL8:55 pmOslo Gardermoen

May 7

OSL6:30 amOslo Gardermoen

17h 18m

2 stops

PDX2:48 pmPortland

$483

KLM

Apr 20

PDX3:35 pmPortland

15h 45m

2 stops

OSL4:20 pmOslo Gardermoen

Apr 27

OSL11:50 amOslo Gardermoen

16h 02m

2 stops

PDX6:52 pmPortland

$487

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/13

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Mon 4/27

1:50 pm-5:55 pm

1 stop13h 05m

$362

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 4/27

3:30 pm-12:35 pm

1 stop12h 05m

Oslo Gardermoen

Tue 5/12

4:30 pm-6:00 pm

1 stop34h 30m

$364

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 4/15

7:00 pm-12:25 am

2 stops20h 25m

Oslo Sandefjord

Wed 4/22

6:00 am-5:55 pm

2 stops20h 55m

$662

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/8

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/15

6:00 am-1:45 pm

1 stop16h 45m

$673

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 7/28

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Tue 8/11

6:00 am-1:45 pm

1 stop16h 45m

$675

PortlandOslo

PDX - TRF

PDXTRF

Portland

Mon 4/27

1:05 pm-9:10 pm

2 stops23h 05m

Oslo Sandefjord

Tue 5/12

9:45 am-11:10 am

2 stops34h 25m

$758

SpokaneOslo

GEG - OSL

GEGOSL

Spokane

Fri 5/1

1:22 pm-10:20 pm

2 stops23h 58m

Oslo Gardermoen

Fri 5/8

7:50 am-8:33 pm

2 stops21h 43m

$774

SpokaneOslo

GEG - OSL

GEGOSL

Spokane

Sun 4/12

1:46 pm-3:25 pm

2 stops40h 39m

Oslo Gardermoen

Sun 4/19

11:45 am-3:15 pm

2 stops36h 30m

$796

PortlandOslo

PDX - TRF

PDXTRF

Portland

Mon 4/27

1:05 pm-9:10 pm

2 stops23h 05m

Oslo Sandefjord

Sun 5/10

3:15 pm-11:10 am

2 stops28h 55m

$852

SpokaneOslo

GEG - OSL

GEGOSL

Spokane

Fri 7/17

1:41 pm-2:50 pm

2 stops40h 09m

Oslo Gardermoen

Sun 7/26

11:45 am-12:37 pm

2 stops57h 52m

$1,086

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 State of Washington to Oslo

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

Other information

What is the cheapest month to fly to Oslo?

The month of January is, on average, the cheapest month to fly to Oslo from State of Washington, with most prices found around $421. If you’re not able to fly to Oslo in January, then November is your next best option. Flight prices from State of Washington to Oslo during November average around $481.

How far in advance should I book a flight to Oslo?

You are more likely to see cheaper flights to Oslo from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $555 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from State of Washington for as low as $496 on momondo.

Cheap State of Washington to Oslo flight deals and tips

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

Fastest flight time	11h 25m
Direct flights	None

The fastest flight from State of Washington to Oslo takes 11h 25m

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

Search flight deals

When did momondo last update prices for flights from Washington to Oslo?
Prices for flights from Washington to Oslo are updated daily.
How many operators does momondo search for flights from Washington to Oslo?
There are 8 operators available for flights from Washington to Oslo as of March 2026.
How old do you have to be to fly from Washington to Oslo?
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 Washington to Oslo.
What documentation or ID do you need to fly to Oslo?
The required travel and health documents for your Oslo trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oslo. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from State of Washington to Oslo

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $353	Free Cancellation	Rating 6.7 7,799 reviews	Search British Airways flights
Icelandair	PriceFrom $390	Free Cancellation	Rating 7.1 622 reviews	Search Icelandair flights
Delta	PriceFrom $468	Free Cancellation	Rating 7.9 8,287 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $476	Free Cancellation	Rating 7.3 1,719 reviews	Search Scandinavian Airlines flights
Finnair	PriceFrom $491	Free Cancellation	Rating 7.6 1,373 reviews	Search Finnair flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,471 reviews	Search KLM flights
United Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 9,435 reviews	Search United Airlines flights
Lufthansa	PriceFrom $520	Free Cancellation	Rating 6.8 7,858 reviews	Search Lufthansa flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Oslo. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential Washington to Oslo 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 Washington to Oslo right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington to Oslo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Washington to Oslo from $169

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Oslo departing on 4/28. 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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How to get the cheapest flight ticket from State of Washington to Oslo

What is the cheapest month to fly to Oslo?

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

What airlines fly to Oslo?

How long does it take to fly to Oslo?

Cheap State of Washington to Oslo flight deals and tips

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Why use momondo?

An easier way to manage your Oslo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Norway

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Airports listed have a maximum distance of 53.1 mi from Oslo

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