OSL - WAS

$263 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 10/14. 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

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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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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, Oct 24 - Thu, Nov 6
 Logo
7:15 pm - 3:35 pmOSL-IAD
26h 20m1 stop
 Logo
9:25 pm - 4:20 pmIAD-OSL
12h 55m1 stop
Sun, Oct 19 - Mon, Nov 3
 Logo
7:15 pm - 3:35 pmOSL-IAD
26h 20m1 stop
 Logo
6:50 pm - 4:20 pmIAD-OSL
15h 30m1 stop
Sun, Oct 26 - Sun, Nov 2
Icelandair Logo
1:05 pm - 7:30 pmOSL-IAD
11h 25m1 stop
Icelandair Logo
7:40 pm - 11:35 amIAD-OSL
9h 55m1 stop
$445Icelandair
Find Deal
Wed, Oct 29 - Mon, Nov 3
British Airways Logo
6:55 am - 6:54 pmOSL-IAD
16h 59m2 stops
British Airways Logo
9:45 pm - 6:40 pmIAD-OSL
14h 55m1 stop
$456British Airways
Find Deal
Wed, Oct 29 - Mon, Nov 3
British Airways Logo
6:55 am - 6:54 pmOSL-IAD
16h 59m2 stops
British Airways Logo
6:20 pm - 6:40 pmIAD-OSL
18h 20m1 stop
$460British Airways
Find Deal
Fri, Dec 5 - Sun, Dec 7
Icelandair Logo
1:10 pm - 6:30 pmOSL-IAD
11h 20m1 stop
Icelandair Logo
7:40 pm - 11:35 amIAD-OSL
9h 55m1 stop
$472Icelandair
Find Deal
Thu, Oct 2 - Mon, Oct 13
Lufthansa Logo
7:15 am - 3:50 pmOSL-IAD
14h 35m2 stops
Lufthansa Logo
10:20 pm - 6:00 pmIAD-OSL
13h 40m2 stops
$641Lufthansa
Find Deal
Thu, Oct 2 - Mon, Oct 13
Lufthansa Logo
7:15 am - 3:50 pmOSL-IAD
14h 35m2 stops
Lufthansa Logo
10:20 pm - 6:00 pmIAD-OSL
13h 40m2 stops
$642Lufthansa
Find Deal
Fri, Oct 24 - Fri, Oct 31
Scandinavian Airlines Logo
1:25 pm - 11:04 pmOSL-DCA
15h 39m1 stop
Scandinavian Airlines Logo
3:00 pm - 12:10 pmDCA-OSL
16h 10m2 stops
$817Scandinavian Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 13
Scandinavian Airlines Logo
11:05 am - 10:11 pmOSL-DCA
17h 06m2 stops
Scandinavian Airlines Logo
6:05 am - 6:50 amDCA-OSL
18h 45m1 stop
$850Scandinavian Airlines
Find Deal

Everything you should know

Top airlines
KLM
Cheapest • from $444 (round-trip)
KLM
Best reviews • 7.8 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 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 15% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$437
Typical prices: $454-630
Multiple Airlines
Fri 10/24Thu 11/6
OSL - IAD • 1 stop
Cheapest one-way
$263
Typical prices: $503-1312
TAP AIR PORTUGAL
Tue 10/14
OSL - IAD • 1 stop
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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.?

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 $443 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $657 and $576 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 16% 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$263
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Oslo Airport to Washington Dulles 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 $263 for a one-way ticket and $437 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.?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Oslo and Washington, D.C., with oneworld 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 $549 and an overall rating of 7.8, KLM is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $660 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.
7.8
KLMOverall score based on 1385 reviews
7.8Boarding
7.2Entertainment
7.7Comfort
7.3Food
8.4Crew
Airline reviews

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.

2.0 MediocreAnonymous, Aug 2025CTA - AMS
Read more KLM reviews

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.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

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.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

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.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

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

When my flight was changed from delays they were quick to rebook me.

The Recaro seats are stiff and have minimal padding. Quite uncomfortable for a 5.5 hour flight. The upfront seats and space are identical to the ones in the back. The upgrade was not worth it.

The seats have no legroom. I was bruised on my knees for having them pressed up against the seat in front of me. Then I got food poisoning from the special meal I ordered. Pretty horrible all around.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

I love it the scandavians know hospitality travel and are very friendly peopu

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.

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

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.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

It was chaotic. It was overbooked so we didn't have seats until the end but they turned out to be good seats. The gate was at the end of the airport. We had to get busses to the tarmac and board. It just seemed chaotic. Flight was OK. Food was not so good. Lufthansa used to be such a great airline and now as it's with everything else: If you have money you get comforts but if you don't then you end up below deck with the rest of the cattle.

Welp - they boarded us appropriately...then had us sit on the plane for over two hours before cancelling the flight...which meant another night in Munich. I probably had it a little better than most as over 500 people had to be accommodated/re-booked etc. The next day I boarded the same flight (for which I had now been ticketed 3 straight days) and - with "only" an hour delay, managed to finally get home over 2 days later than scheduled. I haven't flown Lufthansa to Europe in years...and I won't be looking to do so again in the future. To be clear, though, the people I interacted with - flight crew, Service Center, check-in were all professional and courteous - management is clearly to blame for their lack of communication and unpreparedness for when things go wrong.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Both flights were delayed over 1 hour. And I had to pay for seats, even though my reservation supposedly included free seat selection.

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Seat very cramped, could not recline. No cheese with meal. Staff very helpful.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

I paid for full WIFI- it was terrible, kept being in and out could not listen to a podcast

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

Everything you need to know for your flight from Oslo to Washington, D.C.

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