$291 Find Cheap Flights from Washington, D.C. to Oslo - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Oslo departing on 8/19. 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 Oslo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Oslo.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Oslo.
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Everything you should know

Cheapest round-trip
$772
Typical prices: $769-$595
United Airlines
Thu 10/15Wed 10/21
IAD - OSL • 2 stops
Cheapest one-way
$291
Typical prices: $360-$402
Multiple Airlines
Wed 8/19
IAD - OSL • 3 stops
Top airlines
Cheapest • from $772 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals

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

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

Thu, Oct 15 - Wed, Oct 21
United Airlines Logo
4:02 pm - 5:15 pm
IAD
-
OSL
19h 13m
2 stops
United Airlines Logo
9:55 am - 4:05 pm
OSL
-
IAD
12h 10m
1 stop
$772United Airlines
Sun, Jul 12 - Sun, Jul 26
Scandinavian Airlines Logo
8:20 pm - 12:55 pm
IAD
-
OSL
10h 35m
1 stop
Scandinavian Airlines Logo
7:20 pm - 5:00 pm
OSL
-
IAD
27h 40m
1 stop
$773Scandinavian Airlines
Tue, Aug 18 - Thu, Aug 27
Air Canada Logo
3:45 pm - 5:15 pm
IAD
-
OSL
19h 30m
2 stops
Air Canada Logo
6:45 am - 3:01 pm
OSL
-
IAD
14h 16m
2 stops
$774Air Canada
Sat, Oct 10 - Tue, Oct 20
Air Canada Logo
3:45 pm - 1:15 pm
IAD
-
OSL
39h 30m
2 stops
Air Canada Logo
9:55 am - 3:00 pm
OSL
-
IAD
35h 05m
2 stops
$775Air Canada
Mon, Aug 3 - Sat, Aug 15
Scandinavian Airlines Logo
8:20 pm - 12:55 pm
IAD
-
OSL
10h 35m
1 stop
Scandinavian Airlines Logo
11:00 am - 5:00 pm
OSL
-
IAD
12h 00m
1 stop
$776Scandinavian Airlines
Thu, Aug 27 - Tue, Sep 1
United Airlines Logo
10:20 pm - 5:55 pm
IAD
-
OSL
13h 35m
1 stop
United Airlines Logo
1:10 pm - 12:44 am
OSL
-
IAD
17h 34m
2 stops
$777United Airlines
Mon, Jul 27 - Mon, Aug 3
Scandinavian Airlines Logo
8:20 pm - 12:55 pm
IAD
-
OSL
10h 35m
1 stop
Scandinavian Airlines Logo
9:00 am - 5:00 pm
OSL
-
IAD
14h 00m
1 stop
$778Scandinavian Airlines
Sun, Jul 19 - Wed, Jul 29
Scandinavian Airlines Logo
8:20 pm - 8:25 pm
IAD
-
TRF
18h 05m
1 stop
Scandinavian Airlines Logo
8:55 pm - 5:00 pm
TRF
-
IAD
26h 05m
1 stop
$778Scandinavian Airlines
Wed, Jul 8 - Mon, Jul 20
Scandinavian Airlines Logo
8:20 pm - 12:55 pm
IAD
-
OSL
10h 35m
1 stop
Scandinavian Airlines Logo
9:55 am - 5:00 pm
OSL
-
IAD
13h 05m
1 stop
$779Scandinavian Airlines
Sat, Aug 8 - Fri, Aug 21
Lufthansa Logo
10:20 pm - 12:05 am
IAD
-
OSL
19h 45m
2 stops
Lufthansa Logo
7:15 am - 4:05 pm
OSL
-
IAD
14h 50m
2 stops
$781Lufthansa
Booking Insights

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

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

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Oslo?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Oslo departing in October.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Oslo, 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 Washington, D.C. Dulles Intl Airport to Oslo is April, where tickets cost $361 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $589 and $560 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Oslo, 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 Washington, D.C. Dulles Intl Airport to Oslo, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Cheapest flight$291
Flight from Washington Dulles Airport to Oslo Airport

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Oslo 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 Washington, D.C. to Oslo flights

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Oslo was $291 for a one-way ticket and $772 for a round-trip.

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

    A passport is required to fly from Washington, D.C. to Oslo.

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

    Washington, D.C. is served by only 1 airport and there are 2 airports in Oslo. You will leave Washington, D.C. from Washington, D.C. Dulles Intl and you will be arriving in Oslo at one of these airports: Oslo Gardermoen or Oslo Sandefjord.

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

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

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

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

  • What is the most popular layover when flying to Oslo from Washington, D.C.?

    Reykjavik is the most popular layover city among KAYAK users traveling from Washington, D.C. to Oslo.

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

    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 Washington, D.C. to Oslo.

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

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

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

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

    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 Oslo from Washington, D.C. 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 Washington, D.C. to Oslo

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Oslo. 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 Washington, D.C. to Oslo? 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 1528 reviews
8.4Crew
7.7Comfort
7.2Entertainment
7.3Food
7.8Boarding
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

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.

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

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!

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

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

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.

We sat in our seats on the tarmac for almost 3 hours due to storms. They would not give us water or a snack. We were to depart at 7.30 pm and it was about 10.30 when we took off. No dinner until much after that. Beef type noodle dish was terrible with about a teaspoon of beef in it. The breakfast sweet waffle with egg and sausage inside was horrible. An English muffin sandwich would have been much better. Food was the worst in all of our years of traveling the world.

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

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

Information on your arrival and departure airports