OSL - DEN

$377 Find Cheap Flights from Oslo to Denver

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 Denver departing on 4/27. 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 Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Denver, 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 Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$523
Typical prices: $461-$741
Icelandair
Sun 4/5Mon 4/20
OSL - DEN • 1 stop
Cheapest one-way
$377
Typical prices: $498-$629
Multiple Airlines
Mon 4/27
OSL - DEN • 3 stops
Top airlines
Icelandair
Cheapest • from $523 (round-trip)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Oslo and Denver. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Reykjavik (KEF)
Cheapest • Avg $731 (round-trip)
Reykjavik (KEF)
Shortest trip • 13h 02m (one-way)
Insights
Insights
Insights
Insights
When to book
11 weeks
in advance
Our data shows that travelers who book at least 11 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 16% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Oslo to Denver (OSL-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oslo to Denver 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 Denver

Sun, Apr 5 - Mon, Apr 20
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$523Icelandair
Sun, Apr 5 - Tue, Apr 21
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$529Icelandair
Sun, Apr 5 - Mon, Apr 20
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$532Icelandair
Sun, Apr 5 - Mon, Apr 20
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$533Icelandair
Sun, Apr 19 - Mon, May 4
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$537Icelandair
Thu, Apr 9 - Tue, Apr 21
Icelandair Logo
1:50 pm - 7:00 pm
OSL
-
DEN
13h 10m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$544Icelandair
Wed, Apr 8 - Tue, Apr 21
Multiple Airlines Logo
9:05 am - 8:27 am
OSL
-
DEN
31h 22m
2 stops
Multiple Airlines Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$559Multiple Airlines
Sun, Apr 5 - Tue, Apr 21
Icelandair Logo
4:30 pm - 7:00 pm
OSL
-
DEN
34h 30m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$561Icelandair
Thu, Apr 9 - Tue, Apr 21
Icelandair Logo
1:50 pm - 7:00 pm
OSL
-
DEN
13h 10m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$563Icelandair
Mon, Apr 20 - Mon, Apr 27
Icelandair Logo
1:50 pm - 7:00 pm
OSL
-
DEN
13h 10m
1 stop
Icelandair Logo
4:40 pm - 12:35 pm
DEN
-
OSL
11h 55m
1 stop
$564Icelandair
Booking Insights

KAYAK's insights & trends for Oslo to Denver flights

Get data-powered insights and trends into flights from Oslo to Denver 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 Denver?

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 Denver departing in April.

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

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 Denver, 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 Denver is April, where tickets cost $641 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $992 and $853 respectively.

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

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 Denver, 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 Denver, you should book around 11 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$377
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Oslo to Denver

When to book flights from Oslo to Denver

Are your dates flexible? Find out the best times to travel from Oslo to Denver 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 Denver flights

  • What is the cheapest flight from Oslo Gardermoen Airport to Denver?

    In the last 3 days, the lowest price for a flight from Oslo Gardermoen Airport to Denver was $377 for a one-way ticket and $523 for a round-trip.

  • Do I need a passport to fly between Oslo and Denver?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Oslo and on arrival in Denver.

  • Which aircraft models fly most regularly from Oslo to Denver?

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

  • Which airline alliances offer flights from Oslo to Denver?

    oneworld is the only airline alliance operating flights between Oslo and Denver.

  • Which is the best airline for flights from Oslo to Denver, Icelandair or British Airways?

    The two airlines most popular with KAYAK users for flights from Oslo to Denver are Icelandair and British Airways. With an average price for the route of $699 and an overall rating of 7.1, Icelandair is the most popular choice. British Airways is also a great choice for the route, with an average price of $713 and an overall rating of 6.7.

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

    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 Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver 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 Denver?

    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 Denver with an airline and back to Oslo with another airline. Booking your flights between Oslo and DEN can sometimes prove cheaper using this method.

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

    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 Denver 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 airlines flying from Oslo to Denver

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Denver. 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 Denver? 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.
7.1
IcelandairOverall score based on 619 reviews
7.2Boarding
7.0Comfort
8.0Crew
6.2Food
7.0Entertainment
Airline reviews

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

6.0 GoodAnonymous, Feb 2026
SEA - KEF
Read more Icelandair reviews

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

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

Information on your arrival and departure airports