OSL - WAS

$281 Find Cheap Flights from Oslo to Washington, D.C.

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, D.C. departing on 4/15. 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, D.C.

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

Cheap Flights from Oslo to Washington, D.C. (OSL-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oslo to Washington, D.C. 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, D.C.

Fri, Dec 5 - Thu, Jan 8
TAP AIR PORTUGAL Logo
1:00 pm - 3:15 pmOSL-IAD
32h 15m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 12:10 pmIAD-OSL
12h 40m1 stop
$439TAP AIR PORTUGAL
Find Deal
Sun, Mar 8 - Sun, Mar 29
Icelandair Logo
1:05 pm - 7:30 pmOSL-IAD
11h 25m1 stop
Icelandair Logo
8:30 pm - 12:35 pmIAD-OSL
10h 05m1 stop
$444Icelandair
Find Deal
Thu, Nov 13 - Fri, Nov 28
KLM Logo
5:00 pm - 4:05 pmOSL-IAD
29h 05m1 stop
KLM Logo
6:05 pm - 4:15 pmIAD-OSL
16h 10m1 stop
$449KLM
Find Deal
Mon, Nov 24 - Sun, Dec 7
KLM Logo
9:25 am - 4:05 pmOSL-IAD
12h 40m1 stop
KLM Logo
6:05 pm - 6:15 pmIAD-OSL
18h 10m1 stop
$450KLM
Find Deal
Thu, Nov 13 - Fri, Nov 28
Delta Logo
6:30 am - 4:05 pmOSL-IAD
15h 35m1 stop
Delta Logo
12:11 pm - 1:50 pmIAD-OSL
19h 39m2 stops
$471Delta
Find Deal
Sat, Dec 6 - Wed, Jan 7
Multiple Airlines Logo
7:10 am - 3:35 pmOSL-IAD
14h 25m1 stop
Multiple Airlines Logo
6:20 pm - 10:40 pmIAD-OSL
22h 20m1 stop
$475Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Delta Logo
6:30 am - 4:05 pmOSL-IAD
15h 35m1 stop
Delta Logo
5:03 pm - 4:20 pmIAD-OSL
17h 17m2 stops
$476Delta
Find Deal
Sat, Dec 6 - Tue, Jan 6
British Airways Logo
6:30 pm - 7:31 pmOSL-IAD
31h 01m2 stops
British Airways Logo
5:46 pm - 10:40 pmIAD-OSL
22h 54m2 stops
$492British Airways
Find Deal
Wed, Dec 3 - Fri, Jan 9
British Airways Logo
6:55 am - 6:45 pmOSL-BWI
17h 50m1 stop
British Airways Logo
8:35 pm - 10:10 pmBWI-OSL
19h 35m1 stop
$520British Airways
Find Deal
Sat, Dec 6 - Tue, Jan 6
Lufthansa Logo
4:35 pm - 3:35 pmOSL-IAD
29h 00m2 stops
Lufthansa Logo
6:20 pm - 3:40 pmIAD-OSL
15h 20m2 stops
$916Lufthansa
Find Deal

Everything you should know

Top airlines
TAP AIR PORTUGAL
Cheapest • from $439 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$439
Typical prices: $381-$636
TAP AIR PORTUGAL
Fri 12/5Thu 1/8
OSL - IAD • 1 stop
Cheapest one-way
$281
Finnair
Wed 4/15
OSL - DCA • 2 stops
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We hope you love your trip to Washington, D.C.!
Booking Insights

KAYAK's insights & trends for Oslo to Washington, D.C. flights

Get data-powered insights and trends into flights from Oslo to Washington, D.C. 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 Washington, D.C.?

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 Washington, D.C. departing in December.

What’s the cheapest day of the week to fly from Oslo to Washington, D.C.?

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

Your flight ticket price will generally be cheaper if you fly to Washington, D.C. on a Tuesday and more expensive on a Monday. On your return trip to Oslo, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

What is the cheapest month to fly from Oslo Gardermoen Airport to Washington, D.C.?

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, D.C., 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, D.C. is February, where tickets cost $445 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $660 and $583 respectively.

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

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, D.C., 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, D.C., you should book around 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$281
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Oslo to Reagan Washington National Airport

When to book flights from Oslo to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Oslo to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Oslo to Washington, D.C. flights

  • What is the cheapest flight from Oslo Gardermoen Airport to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Oslo Gardermoen Airport to Washington, D.C. was $281 for a one-way ticket and $439 for a round-trip.

  • Do I need a passport to fly between Oslo and Washington, D.C.?

    Yes

  • Which airports will I be using when flying from Oslo to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Oslo Gardermoen. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Oslo to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Oslo to Washington, D.C.?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Oslo and Washington, D.C., with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Oslo to Washington, D.C., KLM or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Oslo to Washington, D.C. are KLM and Scandinavian Airlines. With an average price for the route of $515 and an overall rating of 7.7, KLM is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $655 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Oslo to Washington, D.C.?

    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, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Oslo 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, D.C.?

    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 to Washington, D.C. with an airline and back to Oslo with another airline.

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

    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 to Washington, D.C. from Oslo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Oslo to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Washington, D.C.. 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, D.C.? 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.
7.7
KLMOverall score based on 1406 reviews
7.7Comfort
7.3Food
7.1Entertainment
7.8Boarding
8.4Crew
Airline reviews

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

4.0 OkayMarcel, Oct 2025JFK - AMS
Read more KLM reviews

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

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.

1) SAS sent me emails that i could check in but that was just a waste of time because traveling to the us i actually had to check-in at the airport. 2) SAS evidently does not care about vegetarians as it does not offer regular veggie alternatives in the transcontinental flights.

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.

SAS has too many other airliners. They don't need to exist.

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.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

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

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

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.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

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

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

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 plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

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, D.C.

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