$293 Find Cheap Flights from Oslo 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 to Washington departing on 3/21. 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 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 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 to Washington

Mon, Nov 24 - Sun, Dec 7
Icelandair Logo
1:10 pm - 5:00 pmOSL-SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
$442Icelandair
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Fri, Nov 14 - Thu, Nov 27
Icelandair Logo
1:10 pm - 5:00 pmOSL-SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
$467Icelandair
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Mon, Nov 24 - Sun, Dec 7
Lufthansa Logo
6:15 am - 12:10 pmOSL-SEA
14h 55m1 stop
Lufthansa Logo
7:00 am - 5:30 pmSEA-OSL
25h 30m2 stops
$477Lufthansa
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Mon, Nov 24 - Sun, Dec 7
Lufthansa Logo
6:15 am - 10:28 pmOSL-SEA
25h 13m2 stops
Lufthansa Logo
1:40 pm - 5:30 pmSEA-OSL
18h 50m2 stops
$480Lufthansa
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Fri, Nov 14 - Thu, Nov 27
Delta Logo
9:25 am - 10:25 pmOSL-SEA
22h 00m2 stops
Delta Logo
7:20 am - 8:40 amSEA-OSL
16h 20m2 stops
$519Delta
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Thu, Feb 26 - Mon, Mar 2
British Airways Logo
3:05 pm - 3:55 pmOSL-PDX
33h 50m1 stop
British Airways Logo
5:45 pm - 6:40 pmPDX-OSL
15h 55m1 stop
$572British Airways
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Thu, Feb 26 - Mon, Mar 2
British Airways Logo
3:05 pm - 3:55 pmOSL-PDX
33h 50m1 stop
British Airways Logo
5:45 pm - 6:40 pmPDX-OSL
15h 55m1 stop
$573British Airways
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Fri, Nov 14 - Thu, Nov 27
Delta Logo
6:30 am - 11:45 amOSL-SEA
14h 15m1 stop
Delta Logo
3:00 pm - 8:40 amSEA-OSL
32h 40m1 stop
$602Delta
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Thu, Feb 19 - Mon, Feb 23
Scandinavian Airlines Logo
2:35 pm - 10:22 pmTRF-PDX
40h 47m2 stops
Scandinavian Airlines Logo
10:00 am - 2:05 pmPDX-TRF
43h 05m2 stops
$647Scandinavian Airlines
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Sun, Dec 21 - Sat, Jan 3
Scandinavian Airlines Logo
4:00 pm - 8:50 pmOSL-SEA
37h 50m2 stops
Scandinavian Airlines Logo
7:10 am - 5:20 pmSEA-OSL
25h 10m2 stops
$1,113Scandinavian Airlines
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Booking Insights

KAYAK's insights & trends for Oslo to Washington flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oslo 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 to Washington is November, when tickets cost $468 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $731 and $671 respectively.

What’s the cheapest day of the week to fly from Oslo to Washington?

The average price of all round-trip flights from Oslo to Washington clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Oslo to Washington. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Oslo 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 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 to Washington, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Cheapest flight$293
Flight from Oslo Airport to Seattle

FAQs - booking Washington flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oslo 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 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 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 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 to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally in the afternoon, when round-trip flights cost $536 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $662.

Reviews of the top 5 airlines serving from Oslo 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 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.
7.9
DeltaOverall score based on 7998 reviews
8.2Boarding
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
Airline reviews

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

10.0 ExcellentAnonymous, Oct 2025CDG - SEA
Read more Delta reviews

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Scandinavian was perfect. Nice A350 with an on time departure and an an experienced crew. What a difference from TAP.

The staff were great, the food was good. I just hate being crammed in a tuna can for 10 hours cause I can’t afford a better seat.

Really like this airline. Best food for airlines and comfortable seats and attentive staff. Delay was due to air traffic.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

Baggage was mis-handled; food and grocery items in the baggage were damaged.

It was a good flight. Everyone was professional and the flight was smooth.

Service, food was outstanding. They make every effort to make sure that your long flight is as comfortable as possible. The only reason I did not rate them excellent is the way they handled our cancelled flight. They were great about re-booking except for the hotel. A communication breakdown ensued regarding who was booking the hotel for our overnight stay: the city where the flight was cancelled or the city where we were going to lay over for the night. In the end, neither of them did, so we ended up doing it ourselves and were extremely lucky to get a room at all. Given that, I still would not hesitate to fly with them anytime.

I paid extra for our seats on the way coming back from Stockholm to New York the seats were changed and it was totally waved. This happened to three more passengers.

great crew, professional, funny, and great service. good condition plane too! great experience

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

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

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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