$365 Find Cheap Flights from Oslo Airport to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oslo Gardermoen to Washington departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Washington, as well as popular online travel agencies
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Flight Deals

Book Cheap Oslo Gardermoen to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oslo Gardermoen to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oslo Gardermoen to Washington

Thu, Nov 5 - Thu, Nov 19
Icelandair Logo
9:30 pm - 5:00 pm
OSL
-
PDX
28h 30m
1 stop
Icelandair Logo
2:45 pm - 11:35 am
PDX
-
OSL
11h 50m
1 stop
$621Icelandair
Thu, Nov 5 - Thu, Nov 19
Multiple Airlines Logo
8:25 am - 7:15 pm
OSL
-
PDX
19h 50m
2 stops
Multiple Airlines Logo
2:45 pm - 11:35 am
PDX
-
OSL
11h 50m
1 stop
$638Multiple Airlines
Tue, Jun 16 - Tue, Jun 23
KLM Logo
6:30 am - 4:24 pm
OSL
-
SEA
18h 54m
1 stop
KLM Logo
5:45 pm - 6:35 pm
SEA
-
OSL
15h 50m
1 stop
$652KLM
Tue, Jun 16 - Tue, Jun 23
Delta Logo
11:50 am - 11:08 pm
OSL
-
SEA
20h 18m
2 stops
Delta Logo
1:55 pm - 4:20 pm
SEA
-
OSL
17h 25m
1 stop
$659Delta
Tue, Jun 16 - Tue, Jun 23
Lufthansa Logo
6:55 am - 6:30 pm
OSL
-
SEA
20h 35m
2 stops
Lufthansa Logo
3:00 pm - 10:05 pm
SEA
-
OSL
22h 05m
2 stops
$677Lufthansa
Thu, Nov 5 - Thu, Nov 19
Air Canada Logo
6:15 am - 8:46 pm
OSL
-
PDX
23h 31m
2 stops
Air Canada Logo
7:00 am - 3:45 pm
PDX
-
OSL
23h 45m
2 stops
$694Air Canada
Thu, Jul 16 - Mon, Aug 3
Lufthansa Logo
7:15 pm - 7:06 pm
OSL
-
SEA
32h 51m
2 stops
Lufthansa Logo
1:55 pm - 12:15 am
SEA
-
OSL
25h 20m
2 stops
$710Lufthansa
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
6:45 am - 8:53 pm
OSL
-
SEA
23h 08m
3 stops
United Airlines Logo
11:00 pm - 5:15 pm
SEA
-
OSL
33h 15m
2 stops
$718United Airlines
Thu, Nov 5 - Thu, Nov 19
Air Canada Logo
6:15 am - 6:31 pm
OSL
-
PDX
21h 16m
3 stops
Air Canada Logo
7:00 am - 1:05 pm
PDX
-
OSL
21h 05m
2 stops
$740Air Canada
Sat, Jun 13 - Sat, Jun 27
KLM Logo
6:30 am - 4:40 pm
OSL
-
SEA
19h 10m
2 stops
KLM Logo
5:45 pm - 10:35 pm
SEA
-
OSL
19h 50m
1 stop
$871KLM
Booking Insights

KAYAK's insights & trends for Oslo Gardermoen to Washington flights

Get data-powered insights and trends into flights from Oslo Gardermoen to Washington to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Oslo Gardermoen Airport to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Oslo Gardermoen Airport to State of Washington departing in June.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oslo Gardermoen Airport to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Oslo Gardermoen Airport to Washington is November, when tickets cost $301 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $484 and $472 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Oslo Gardermoen Airport to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Oslo Gardermoen Airport to Washington, you should book around 2 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$365
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Oslo Airport to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Oslo Airport to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oslo Airport to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oslo Airport to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oslo Airport to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oslo Airport to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Oslo Airport to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oslo Airport to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Oslo Airport to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Oslo Gardermoen to Washington

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Oslo Gardermoen to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1783 reviews
6.7Entertainment
7.3Comfort
7.7Boarding
6.7Food
8.0Crew
Airline reviews

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

8.0 ExcellentT, May 2026
CPH - ORD
Read more Scandinavian Airlines reviews

My daughter always gets sick when we order the gluten free meal option. Internet didn’t work as advertised.

All went smoothly. That's what I want on a long flight.

Really good. Everything went smoothly. That's what I hope for when I'm on a long flight, especially with multiple changes. Thank you SAS.

I expected more, but they will nickel and dime you for everything. I did not enjoy flying with this airline.

Curious and efficient service ! First time flying with SAS and very pleased!

I wish they have given us explanations for the delays. And the rebooking process in Copenhagen was too long. I had to wait about 4 hours before they assign me a hotel. From there the handling process (accommodation, transportation and meal) was excellent.

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Since our earlier flight was delayed, we missed this flight and were rerouted on Lufthansa 2 days later.

Scandinavian Airlines is terrible. Flight was late. Lost luggage. Rude flight attendants. Terrible experience.

The flight was very cold, and the seats were rather uncomfortable. The food has been better on our other SAS experiences. Most significantly, the luggage with most of my wife's personal items and clothes didn't make the flight. Hoping for a quick resolution, but no real opportunity to speak with a Human has us concerned.

At least one soda free, felt like I was nickeled to death.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The movie choices were poor. The worst problem is the treatment of passengers durinng pre-boarding. In one case the primes were checked in and sent down the boarding tunnek only to stand waiting there while the plane is cleaned. In the second case the bus was loaded, the doors closed and just stood there unmoving like sardeines in a tin for over TEN minutes. In both cases it was rough on us old guys who find standing for long periods trying.. In other words, Donnt just stack us up and forget us.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

The most uncomfortable seat i’ve ever had on a flight

Everything you need to know for your flight from Oslo Gardermoen to Washington

Information on your arrival and departure airports