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 21h 05m 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?

Icelandair, Delta, and British Airways are the most popular carriers operating from Washington to Oslo

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 66% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 10 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 10 operators available for flights from Washington to Oslo as of September 2025.

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.

$358 Cheap Flights from Washington to Oslo in 2025/26

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Find the cheapest flights from Washington to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

7:00 pm - 12:35 pmSEA-OSL

32h 35m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$394Icelandair

Find Deal

vie., oct. 17 - vie., nov. 7

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

9:30 pm - 5:00 pmOSL-SEA

28h 30m1 stop

$408Icelandair

Find Deal

sáb., nov. 1 - dom., nov. 16

1:00 pm - 12:20 amPDX-OSL

26h 20m2 stops

8:00 am - 10:22 pmOSL-PDX

22h 22m2 stops

$484Scandinavian Airlines

Find Deal

lun., mar. 2 - mar., mar. 10

10:25 am - 5:20 pmSEA-OSL

22h 55m2 stops

9:35 am - 10:22 pmOSL-SEA

21h 47m2 stops

$484Scandinavian Airlines

Find Deal

mar., oct. 28 - mar., nov. 4

7:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

7:05 am - 5:55 pmOSL-SEA

18h 50m1 stop

$485British Airways

Find Deal

mié., mar. 11 - jue., mar. 19

6:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

7:25 pm - 5:55 pmOSL-SEA

30h 30m1 stop

$486British Airways

Find Deal

dom., mar. 1 - mar., mar. 10

7:50 pm - 8:00 amSEA-OSL

28h 10m2 stops

12:25 pm - 12:11 amOSL-SEA

19h 46m2 stops

$496Finnair

Find Deal

lun., mar. 9 - mar., mar. 17

2:00 pm - 1:05 pmSEA-OSL

14h 05m1 stop

6:15 am - 12:10 pmOSL-SEA

14h 55m1 stop

$497Lufthansa

Find Deal

mar., nov. 11 - mar., nov. 18

7:50 pm - 8:00 amSEA-OSL

28h 10m2 stops

6:25 am - 9:10 pmOSL-SEA

22h 45m2 stops

$498Finnair

Find Deal

lun., mar. 9 - mar., mar. 17

7:30 am - 3:20 pmPDX-OSL

22h 50m2 stops

6:15 am - 8:38 pmOSL-PDX

23h 23m2 stops

$610Lufthansa

Find Deal

mié., nov. 5 - mar., nov. 11

Icelandair flights from State of Washington to Oslo

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

Icelandair

Oct 17

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$394

Find similar

Icelandair

Nov 1

SEA3:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 16

OSL9:30 pmOslo Gardermoen

28h 30m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$408

Find similar

Icelandair

Oct 15

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Oct 20

OSL4:45 pmOslo Gardermoen

12h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$414

Find similar

Scandinavian Airlines flights from State of Washington to Oslo

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

Scandinavian Airlines

Mar 2

PDX1:00 pmPortland

26h 20m

2 stops

OSL12:20 amOslo Gardermoen

Mar 10

OSL8:00 amOslo Gardermoen

22h 22m

2 stops

PDX10:22 pmPortland

$484

Find similar

Scandinavian Airlines

Mar 14

SEA12:00 pmSeattle/Tacoma Intl

26h 30m

2 stops

OSL10:30 pmOslo Gardermoen

Mar 23

OSL9:05 pmOslo Gardermoen

33h 20m

2 stops

SEA10:25 pmSeattle/Tacoma Intl

$488

Find similar

Scandinavian Airlines

Feb 24

PDX7:00 amPortland

19h 15m

2 stops

OSL11:15 amOslo Gardermoen

Feb 28

OSL5:55 amOslo Gardermoen

24h 40m

2 stops

PDX9:35 pmPortland

$506

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

vie. 10/17

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

vie. 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$394

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

sáb. 11/1

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

dom. 11/16

9:30 pm-5:00 pm

1 stop28h 30m

$408

PortlandOslo

PDX - OSL

PDXOSL

Portland

lun. 3/2

1:00 pm-12:20 am

2 stops26h 20m

Oslo Gardermoen

mar. 3/10

8:00 am-10:22 pm

2 stops22h 22m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 10/28

10:25 am-5:20 pm

2 stops22h 55m

Oslo Gardermoen

mar. 11/4

9:35 am-10:22 pm

2 stops21h 47m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 3/11

7:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

jue. 3/19

7:05 am-5:55 pm

1 stop18h 50m

$485

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

dom. 3/1

6:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

mar. 3/10

7:25 pm-5:55 pm

1 stop30h 30m

$486

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 3/9

7:50 pm-8:00 am

2 stops28h 10m

Oslo Gardermoen

mar. 3/17

12:25 pm-12:11 am

2 stops19h 46m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 11/11

2:00 pm-1:05 pm

1 stop14h 05m

Oslo Gardermoen

mar. 11/18

6:15 am-12:10 pm

1 stop14h 55m

$497

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 3/9

7:50 pm-8:00 am

2 stops28h 10m

Oslo Gardermoen

mar. 3/17

6:25 am-9:10 pm

2 stops22h 45m

$498

PortlandOslo

PDX - OSL

PDXOSL

Portland

mié. 11/5

7:30 am-3:20 pm

2 stops22h 50m

Oslo Gardermoen

mar. 11/11

6:15 am-8:38 pm

2 stops23h 23m

$610

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 $462. If you’re not able to fly to Oslo in January, then October is your next best option. Flight prices from State of Washington to Oslo during October average around $502.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Tuesday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Oslo for around $896.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from State of Washington in the evening is the least expensive time of day to depart. momondo users have found prices as low as $696 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $959. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $602 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 $527 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

Direct flights	None

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 10 operators available for flights from Washington to Oslo as of September 2025.
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
Icelandair	PriceFrom $404	Free Cancellation	Rating 7.0 546 reviews	Search Icelandair flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Finnair	PriceFrom $491	Free Cancellation	Rating 7.6 1,330 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,507 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $497	Free Cancellation	Rating 6.7 7,406 reviews	Search British Airways flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.8 1,390 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,435 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights
American Airlines	PriceFrom $578	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines 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.