$425 Find Cheap Flights from Oslo Airport to Colorado

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 Gardermoen to Colorado departing on 9/28. 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 Colorado

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

Book Cheap Oslo Gardermoen to Colorado Plane Tickets

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

Thu, Sep 3 - Mon, Sep 14
Scandinavian Airlines Logo
9:00 pm - 11:58 pm
OSL
-
DEN
34h 58m
2 stops
Scandinavian Airlines Logo
6:40 am - 6:45 am
DEN
-
OSL
16h 05m
1 stop
$743Scandinavian Airlines
Thu, Sep 3 - Tue, Sep 15
Scandinavian Airlines Logo
7:20 pm - 11:58 pm
OSL
-
DEN
36h 38m
2 stops
Scandinavian Airlines Logo
6:40 am - 12:55 pm
DEN
-
OSL
22h 15m
2 stops
$752Scandinavian Airlines
Thu, Sep 3 - Mon, Sep 14
Scandinavian Airlines Logo
7:20 pm - 11:58 pm
OSL
-
DEN
36h 38m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:05 am
DEN
-
OSL
20h 25m
2 stops
$753Scandinavian Airlines
Wed, Oct 7 - Tue, Oct 20
Turkish Airlines Logo
6:45 pm - 6:25 pm
OSL
-
DEN
31h 40m
1 stop
Turkish Airlines Logo
8:25 pm - 5:50 pm
DEN
-
OSL
37h 25m
1 stop
$774Turkish Airlines
Tue, Oct 6 - Tue, Oct 20
Turkish Airlines Logo
7:15 am - 6:25 pm
OSL
-
DEN
19h 10m
1 stop
Turkish Airlines Logo
8:25 pm - 5:50 pm
DEN
-
OSL
37h 25m
1 stop
$796Turkish Airlines
Mon, Aug 24 - Wed, Sep 9
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
$812Icelandair
Sun, Sep 13 - Sun, Sep 20
United Airlines Logo
6:25 am - 9:27 pm
OSL
-
COS
23h 02m
2 stops
United Airlines Logo
7:40 am - 12:05 am
COS
-
OSL
32h 25m
2 stops
$896United Airlines
Sun, Sep 13 - Mon, Sep 21
United Airlines Logo
6:25 am - 9:27 pm
OSL
-
COS
23h 02m
2 stops
United Airlines Logo
11:55 am - 5:15 pm
COS
-
OSL
21h 20m
2 stops
$898United Airlines
Sat, Sep 12 - Tue, Sep 22
Delta Logo
6:30 am - 5:14 pm
OSL
-
COS
18h 44m
2 stops
Delta Logo
1:19 pm - 4:20 pm
COS
-
OSL
19h 01m
2 stops
$923Delta
Sat, Sep 12 - Sat, Sep 19
Delta Logo
6:30 am - 9:15 pm
OSL
-
COS
22h 45m
2 stops
Delta Logo
1:19 pm - 11:45 am
COS
-
OSL
38h 26m
2 stops
$927Delta
Booking Insights

KAYAK's insights & trends for Oslo Gardermoen to Colorado flights

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

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 Colorado departing in September.

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

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 Colorado, 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 Colorado is April, when tickets cost $353 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $632 and $576 respectively.

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

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 Colorado, 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 Colorado, you should book around 6 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$425
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Oslo to Denver

FAQs - booking Colorado flights

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

    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 Airport to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oslo Airport to Colorado 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 Airport to Colorado?

    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 Airport to Colorado 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 Airport to Colorado?

    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 Airport to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Oslo Gardermoen to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Colorado. 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 Gardermoen to Colorado? 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.
7.0
IcelandairOverall score based on 661 reviews
7.2Boarding
6.9Entertainment
6.9Comfort
8.0Crew
6.1Food
Airline reviews

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

2.0 MediocreLisa, May 2026
KEF - BOS
Read more Icelandair reviews

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

At least one soda free, felt like I was nickeled to death.

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

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

When you consider the price I ended up paying for everything. This was not a good deal! I had no idea that this airline had changed to a bargain basement no frills airline. So, it was disappointing to have to pay for every little thing. The only thing included was water and coffee. You have to pay for everything else! So I just felt nickel and dime.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

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.

Everything you need to know for your flight from Oslo Gardermoen to Colorado

Information on your arrival and departure airports