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Cheap flights from Washington to Oslo from $217

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 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 3:25 pmPDX  Portland-OSL Oslo Gardermoen
11h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
4:30 pm - 5:55 pmOSL  Oslo Gardermoen-PDX Portland
34h 25m1 stop Reykjavik Keflavik Intl
$423Icelandair
Sun, Sep 6 - Mon, Sep 21
Icelandair Logo
7:00 pm - 3:25 pmPDX  Portland-OSL Oslo Gardermoen
11h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
4:30 pm - 5:55 pmOSL  Oslo Gardermoen-PDX Portland
34h 25m1 stop Reykjavik Keflavik Intl
$443Icelandair
Sun, Sep 6 - Mon, Sep 21
Multiple Airlines Logo
10:00 am - 5:40 pmPDX  Portland-OSL Oslo Gardermoen
22h 40m2 stops Vancouver Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:15 am - 6:31 pmOSL  Oslo Gardermoen-PDX Portland
21h 16m2 stops Frankfurt am Main Vancouver Intl
$474Multiple Airlines
Tue, Jan 19 - Wed, Jan 27
Multiple Airlines Logo
2:34 pm - 5:40 pmPDX  Portland-OSL Oslo Gardermoen
18h 06m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Multiple Airlines Logo
1:00 pm - 11:12 pmOSL  Oslo Gardermoen-PDX Portland
43h 12m2 stops Zurich Chicago O'Hare Intl
$484Multiple Airlines
Mon, Nov 2 - Mon, Nov 16
Scandinavian Airlines Logo
3:55 pm - 2:55 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
14h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:00 pm - 1:45 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
30h 45m1 stop Kastrup Copenhagen
$493Scandinavian Airlines
Sun, Oct 4 - Sat, Oct 10
Scandinavian Airlines Logo
3:55 pm - 12:55 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
12h 00m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:00 pm - 1:45 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
30h 45m1 stop Kastrup Copenhagen
$497Scandinavian Airlines
Sun, Oct 4 - Fri, Oct 9
Lufthansa Logo
2:50 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
17h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:25 pm - 1:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
27h 35m1 stop Munich Franz Josef Strauss
$498Lufthansa
Sun, Nov 1 - Tue, Nov 10
Lufthansa Logo
2:50 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
17h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:25 pm - 1:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
27h 35m1 stop Munich Franz Josef Strauss
$499Lufthansa
Sun, Nov 1 - Tue, Nov 10
United Airlines Logo
2:50 pm - 5:40 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
17h 50m1 stop Munich Franz Josef Strauss
United Airlines Logo
11:50 am - 1:00 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
34h 10m1 stop Munich Franz Josef Strauss
$500United Airlines
Sun, Nov 8 - Sat, Nov 21
United Airlines Logo
6:50 pm - 10:05 pmSEA  Seattle/Tacoma Intl-OSL Oslo Gardermoen
18h 15m1 stop Munich Franz Josef Strauss
United Airlines Logo
7:10 am - 4:59 pmOSL  Oslo Gardermoen-SEA Seattle/Tacoma Intl
18h 49m1 stop Munich Franz Josef Strauss
$502United Airlines
Sun, Aug 23 - Sun, Sep 6

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Icelandair flights from State of Washington to Oslo Gardermoen Airport

Our best Icelandair deals on State of Washington to Oslo Gardermoen Airport flight tickets
Icelandair
Sep 6
PDX7:00 pmPortland
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
Sep 21
OSL4:30 pmOslo Gardermoen
34h 25m
1 stop
PDX5:55 pmPortland
$423
Icelandair
Sep 6
PDX7:00 pmPortland
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
Sep 21
OSL4:30 pmOslo Gardermoen
34h 25m
1 stop
PDX5:55 pmPortland
$443
Icelandair
Oct 31
PDX3:45 pmPortland
11h 50m
1 stop
OSL11:35 amOslo Gardermoen
Nov 4
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
PDX5:00 pmPortland
$445

Lufthansa flights from State of Washington to Oslo Gardermoen Airport

Our best Lufthansa deals on State of Washington to Oslo Gardermoen Airport flight tickets
Lufthansa
Nov 2
PDX2:34 pmPortland
18h 06m
2 stops
OSL5:40 pmOslo Gardermoen
Nov 9
OSL11:50 amOslo Gardermoen
21h 54m
2 stops
PDX12:44 amPortland
$489
Lufthansa
Nov 1
SEA2:50 pmSeattle/Tacoma Intl
17h 50m
1 stop
OSL5:40 pmOslo Gardermoen
Nov 10
OSL6:25 pmOslo Gardermoen
27h 35m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$499
Lufthansa
Aug 21
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
Sep 1
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$501

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Oslo Gardermoen Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 13, 2026.
Use the filters below to find and compare flights from Washington to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandOslo

PDX Portland - OSL Oslo Gardermoen

PDXOSL

Portland

Sun 9/6

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Mon 9/21

4:30 pm-5:55 pm

1 stop34h 25m

$423

PortlandOslo

PDX Portland - OSL Oslo Gardermoen

PDXOSL

Portland

Sun 9/6

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Mon 9/21

4:30 pm-5:55 pm

1 stop34h 25m

$443

PortlandOslo

PDX Portland - OSL Oslo Gardermoen

PDXOSL

Portland

Tue 1/19

10:00 am-5:40 pm

2 stops22h 40m

Oslo Gardermoen

Wed 1/27

6:15 am-6:31 pm

2 stops21h 16m

$474

PortlandOslo

PDX Portland - OSL Oslo Gardermoen

PDXOSL

Portland

Mon 11/2

2:34 pm-5:40 pm

2 stops18h 06m

Oslo Gardermoen

Mon 11/16

1:00 pm-11:12 pm

2 stops43h 12m

$484

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-2:55 pm

1 stop14h 00m

Oslo Gardermoen

Sat 10/10

4:00 pm-1:45 pm

1 stop30h 45m

$493

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-12:55 pm

1 stop12h 00m

Oslo Gardermoen

Fri 10/9

4:00 pm-1:45 pm

1 stop30h 45m

$497

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Tue 11/10

6:25 pm-1:00 pm

1 stop27h 35m

$498

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Tue 11/10

6:25 pm-1:00 pm

1 stop27h 35m

$499

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 11/8

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Sat 11/21

11:50 am-1:00 pm

1 stop34h 10m

$500
Quickest round-trip

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 8/23

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Sun 9/6

7:10 am-4:59 pm

1 stop18h 49m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Oslo from

How to get the cheapest flight ticket from State of Washington to Oslo Gardermoen Airport

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

What is the cheapest month to fly to Oslo Gardermoen Airport?

The cheapest month to fly to Oslo Gardermoen Airport from State of Washington is in January. Flight prices, which tend to average around $422, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Oslo Gardermoen Airport from State of Washington during November instead. Flights to Oslo Gardermoen Airport in November, while not as cheap as those in January, still average around $502.

How far in advance should I book a flight from Washington to Oslo Gardermoen Airport?

You are more likely to see cheaper flights to Oslo Gardermoen Airport from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo Gardermoen Airport for around $565 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo Gardermoen Airport from State of Washington for as low as $543 on momondo.

Can stopping save me money on State of Washington to Oslo Gardermoen Airport flights?

You could potentially save up to 39% on your flight if you consider stops on a State of Washington to Oslo Gardermoen Airport flight.

Cheap State of Washington to Oslo Gardermoen Airport flight deals and tips

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

Fastest flight time

11h 25m

Direct flights

None
The fastest flight from State of Washington to Oslo Gardermoen Airport takes 11h 25m
There are no direct flights from State of Washington to Oslo Gardermoen Airport. There are no popular flight routes from State of Washington to Oslo Gardermoen Airport.
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Frequently asked questions about flying from Washington to Oslo Gardermoen Airport

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

    Prices for flights from Washington to Oslo Gardermoen Airport are updated daily.

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

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

    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 Gardermoen Airport.

  • What documentation or ID do you need to fly to Oslo Gardermoen Airport?

    The travel and health documents you'll need for your trip to Oslo Gardermoen Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo Gardermoen Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Oslo Gardermoen Airport

Compare and see reviews for airlines that fly from State of Washington to Oslo Gardermoen Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $351Free CancellationRating
6.7
8,161 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
6.9
729 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $426Free CancellationRating
7.4
1,949 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $468Free CancellationRating
7.8
8,502 reviews
Search Delta flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
8,182 reviews
Search Lufthansa flights
KLMPriceFrom $506Free CancellationRating
7.8
1,557 reviews
Search KLM flights

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Gardermoen
Fredrikstad
Drammen
Lillehammer

Why use momondo?

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

It is quick and easy to find Washington to Oslo 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 Oslo that suits you.

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?

If you are simply researching potential flights to Oslo, momondo offers a useful price alert feature which will track prices for flights to Oslo from Washington and alert you when they change.

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