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

Air France, Icelandair, and Delta are the most popular carriers operating from Washington to Oslo

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 35m on average. On the other hand, flying from Spokane to Oslo Gardermoen Airport takes 31h 50m 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 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 64% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 7 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

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 7 operators available for flights from Washington to Oslo as of May 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.

$214 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

1:10 pm - 5:00 pm

OSL

SEA

12h 50m

1 stop

$475Icelandair

Tue, Oct 20 - Wed, Nov 4

6:50 pm - 10:05 pm

SEA

OSL

18h 15m

1 stop

7:15 am - 10:42 pm

OSL

SEA

24h 27m

2 stops

$480Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

6:50 pm - 10:05 pm

SEA

OSL

18h 15m

1 stop

7:10 am - 10:42 pm

OSL

SEA

24h 32m

2 stops

$483Multiple Airlines

Sun, Oct 11 - Mon, Oct 19

3:40 pm - 3:25 pm

SEA

OSL

14h 45m

1 stop

4:30 pm - 8:40 pm

OSL

SEA

13h 10m

1 stop

$492Icelandair

Sun, Oct 11 - Mon, Oct 19

5:00 am - 6:00 pm

SEA

OSL

28h 00m

2 stops

7:10 am - 4:59 pm

OSL

SEA

18h 49m

1 stop

$496United Airlines

Tue, Aug 18 - Wed, Aug 26

3:10 pm - 5:40 pm

SEA

OSL

17h 30m

1 stop

6:15 am - 12:10 pm

OSL

SEA

14h 55m

1 stop

$498Lufthansa

Sun, Nov 1 - Tue, Nov 10

1:14 pm - 1:15 pm

PDX

OSL

39h 01m

2 stops

2:05 pm - 7:06 pm

OSL

PDX

38h 01m

2 stops

$499SWISS

Thu, Sep 10 - Tue, Sep 15

12:50 pm - 10:05 pm

PDX

OSL

24h 15m

2 stops

7:10 am - 10:52 pm

OSL

PDX

24h 42m

2 stops

$506United Airlines

Thu, Aug 13 - Sun, Aug 23

11:09 am - 10:05 pm

PDX

OSL

25h 56m

2 stops

7:10 am - 8:55 pm

OSL

PDX

22h 45m

2 stops

$508Lufthansa

Mon, Aug 17 - Mon, Aug 24

1:14 pm - 1:15 pm

PDX

OSL

39h 01m

2 stops

2:05 pm - 8:50 pm

OSL

PDX

39h 45m

2 stops

$509SWISS

Thu, Sep 10 - Mon, Sep 14

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United Airlines flights from State of Washington to Oslo

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

United Airlines

Aug 18

SEA5:00 amSeattle/Tacoma Intl

28h 00m

2 stops

OSL6:00 pmOslo Gardermoen

Aug 26

OSL7:10 amOslo Gardermoen

18h 49m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$496

United Airlines

Nov 1

SEA3:10 pmSeattle/Tacoma Intl

17h 30m

1 stop

OSL5:40 pmOslo Gardermoen

Nov 10

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

$500

United Airlines

Oct 13

SEA6:50 pmSeattle/Tacoma Intl

18h 15m

1 stop

OSL10:05 pmOslo Gardermoen

Oct 18

OSL11:45 amOslo Gardermoen

14h 14m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$503

Air Canada flights from State of Washington to Oslo

Our best Air Canada deals on State of Washington to Oslo flight tickets

Air Canada

May 9

PDX7:45 pmPortland

37h 10m

2 stops

OSL5:55 pmOslo Gardermoen

May 17

OSL11:45 amOslo Gardermoen

30h 45m

2 stops

PDX9:30 amPortland

$503

Air Canada

May 9

PDX7:45 pmPortland

37h 10m

2 stops

OSL5:55 pmOslo Gardermoen

May 16

OSL6:15 amOslo Gardermoen

36h 15m

2 stops

PDX9:30 amPortland

$511

Air Canada

May 6

SEA10:45 amSeattle/Tacoma Intl

20h 10m

2 stops

OSL3:55 pmOslo Gardermoen

May 9

OSL7:15 amOslo Gardermoen

24h 25m

2 stops

SEA10:40 pmSeattle/Tacoma Intl

$514

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/20

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Wed 11/4

1:10 pm-5:00 pm

1 stop12h 50m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/16

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Fri 10/23

7:15 am-10:42 pm

2 stops24h 27m

$480

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/11

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Mon 10/19

7:10 am-10:42 pm

2 stops24h 32m

$483

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/11

3:40 pm-3:25 pm

1 stop14h 45m

Oslo Gardermoen

Mon 10/19

4:30 pm-8:40 pm

1 stop13h 10m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 8/18

5:00 am-6:00 pm

2 stops28h 00m

Oslo Gardermoen

Wed 8/26

7:10 am-4:59 pm

1 stop18h 49m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$498

PortlandOslo

PDX - OSL

PDXOSL

Portland

Thu 9/10

1:14 pm-1:15 pm

2 stops39h 01m

Oslo Gardermoen

Tue 9/15

2:05 pm-7:06 pm

2 stops38h 01m

$499

PortlandOslo

PDX - OSL

PDXOSL

Portland

Thu 8/13

12:50 pm-10:05 pm

2 stops24h 15m

Oslo Gardermoen

Sun 8/23

7:10 am-10:52 pm

2 stops24h 42m

$506

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 8/17

11:09 am-10:05 pm

2 stops25h 56m

Oslo Gardermoen

Mon 8/24

7:10 am-8:55 pm

2 stops22h 45m

$508

PortlandOslo

PDX - OSL

PDXOSL

Portland

Thu 9/10

1:14 pm-1:15 pm

2 stops39h 01m

Oslo Gardermoen

Mon 9/14

2:05 pm-8:50 pm

2 stops39h 45m

$509

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

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Other information

What is the cheapest month to fly to Oslo?

The month of September is, on average, the cheapest month to fly to Oslo from State of Washington, with most prices found around $245. If you’re not able to fly to Oslo in September, then April is your next best option. Flight prices from State of Washington to Oslo during April average around $308.

How far in advance should I book a flight from Washington 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 $550 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 $495 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 20m
Direct flights	None

The fastest flight from State of Washington to Oslo takes 11h 20m

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

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Frequently asked questions about flying 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 7 operators available for flights from Washington to Oslo as of May 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 7,945 reviews	Search British Airways flights
Icelandair	PriceFrom $390	Free Cancellation	Rating 7.0 650 reviews	Search Icelandair flights
Delta	PriceFrom $457	Free Cancellation	Rating 7.9 8,460 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 1,769 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $491	Free Cancellation	Rating 7.4 9,683 reviews	Search United Airlines flights
KLM	PriceFrom $498	Free Cancellation	Rating 7.8 1,511 reviews	Search KLM flights
Lufthansa	PriceFrom $520	Free Cancellation	Rating 6.8 7,972 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 $214

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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?

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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.

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