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$401+ Cheap flights from Oslo Gardermoen (OSL) to Colorado

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Oslo Gardermoen to Colorado

Keep the following information in mind while searching for Oslo Gardermoen to Colorado flight deals. Data was last updated September 15, 2025.

Round-trip from

$560
(United Airlines)

One-way from

$401
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$681
From Oslo Gardermoen to Colorado
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One-way flight from Oslo Gardermoen to Colorado
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Highest demand for flights based on searches. 4% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Oslo Gardermoen to Colorado

Cheapest flights from Oslo Gardermoen to Colorado
Explore the most affordable flight options available from Oslo Gardermoen to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:45 pmOSL - DEN
2 stops51h 04mUnited Airlines
Mon 11/37:46 amDEN - OSL
2 stops21h 09mUnited Airlines
Deal found 9/15$560
This Ticket deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:10 pmOSL - DEN
1 stop12h 55mIcelandair
Tue 12/163:40 pmDEN - OSL
1 stop11h 55mIcelandair
Deal found 9/14$592
This Ticket deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:10 pmOSL - DEN
1 stop12h 55mIcelandair
Thu 11/203:40 pmDEN - OSL
1 stop11h 55mIcelandair
Deal found 9/15$610
This Ticket deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:10 pmOSL - DEN
2 stops19h 39mScandinavian Airlines
Thu 11/207:10 amDEN - OSL
2 stops18h 10mScandinavian Airlines
Deal found 9/15$616
This Flysmarter deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:10 amOSL - DEN
1 stop16h 20mBritish Airways
Mon 11/32:49 pmDEN - OSL
2 stops23h 51mBritish Airways
Deal found 9/15$654
This Icelandair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:50 pmOSL - DEN
1 stop13h 05mIcelandair
Mon 10/274:40 pmDEN - OSL
1 stop11h 55mIcelandair
Deal found 9/14$658
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:45 amOSL - DEN
2 stops23h 56mAmerican Airlines
Mon 10/276:25 pmDEN - OSL
1 stop33h 30mAmerican Airlines
Deal found 9/13$660
This British Airways deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:45 amOSL - DEN
2 stops23h 56mBritish Airways
Mon 10/276:25 pmDEN - OSL
1 stop21h 15mBritish Airways
Deal found 9/14$663
This Ticket deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:10 pmOSL - DEN
1 stop12h 55mIcelandair
Mon 11/33:40 pmDEN - OSL
1 stop11h 55mIcelandair
Deal found 9/15$669
This Travelis deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:45 amOSL - DEN
2 stops17h 01mFinnair
Tue 12/1612:18 pmDEN - OSL
2 stops20h 17mFinnair
Deal found 9/14$676
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:10 amOSL - DEN
1 stop16h 20mAmerican Airlines
Thu 11/2012:27 pmDEN - OSL
2 stops17h 48mAmerican Airlines
Deal found 9/14$714

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Colorado that are best for you.

Fly from

Oslo Gardermoen

Fly to

Colorado

Route

Depart

Return

Price

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Fri 10/31

1:45 pm-9:49 am

2 stops51h 04m

Denver Intl

Mon 11/3

7:46 am-12:55 pm

2 stops21h 09m

$560

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Fri 11/7

1:10 pm-6:05 pm

1 stop12h 55m

Denver Intl

Thu 11/20

3:40 pm-11:35 am

1 stop11h 55m

$610

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Fri 10/31

7:10 am-4:30 pm

1 stop16h 20m

Denver Intl

Mon 11/3

2:49 pm-10:40 pm

2 stops23h 51m

$654

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Thu 10/23

1:50 pm-6:55 pm

1 stop13h 05m

Denver Intl

Mon 10/27

4:40 pm-11:35 am

1 stop11h 55m

$658

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Thu 10/23

7:45 am-11:41 pm

2 stops23h 56m

Denver Intl

Mon 10/27

6:25 pm-10:40 pm

1 stop21h 15m

$663

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Fri 10/31

1:10 pm-7:05 pm

1 stop12h 55m

Denver Intl

Mon 11/3

3:40 pm-11:35 am

1 stop11h 55m

$669

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Sat 10/11

8:20 am-7:26 pm

2 stops19h 06m

Denver Intl

Sat 10/18

6:35 pm-11:35 pm

1 stop21h 00m

$718

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Fri 11/7

3:05 pm-3:30 pm

1 stop32h 25m

Denver Intl

Thu 11/20

12:12 pm-10:55 am

2 stops14h 43m

$723

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Wed 10/29

6:05 am-2:40 pm

1 stop15h 35m

Denver Intl

Wed 11/5

4:20 pm-5:40 pm

1 stop17h 20m

$743

OsloDenver

OSL - DEN

OSLDEN

Oslo Gardermoen

Sat 10/11

6:30 am-9:41 pm

2 stops23h 11m

Denver Intl

Sat 10/18

7:05 am-8:40 am

2 stops17h 35m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
1
2

Best time to book a flight from Oslo Gardermoen to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Oslo Gardermoen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oslo Gardermoen Airport to Colorado

What is the cheapest month to book a flight from Oslo Gardermoen Airport to Colorado?

Currently, October is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Colorado (average of $197). Flying from Oslo Gardermoen Airport to Colorado in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OSL to CO?

Find hourly flight availability from Oslo Gardermoen to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Oslo Gardermoen Airport to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Icelandair and British Airways from Oslo Gardermoen Airport to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
544 reviews

Crew

8.0

Overall

7.0

Boarding

7.2

Entertainment

7.0

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
Icelandair
7.0
Good
544 reviews
Icelandair
7.0
Good
544 reviews

Crew

8.0

Overall

7.0

Boarding

7.2

Entertainment

7.0

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.
British Airways
6.7
Okay
7,361 reviews
Icelandair
7.0
Good
544 reviews

Crew

8.0

Overall

7.0

Boarding

7.2

Entertainment

7.0

Comfort

6.9

Food

6.2

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

GVA - KEF

Terrible customer service when dealing with phone representatives. Baggage was lost.

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oslo Gardermoen Airport to Colorado?

    There are many flights that can get you from Oslo Gardermoen Airport to Colorado in 12h 55m. Fly via United Airlines, Icelandair, or British Airways to get the fastest option. The distance from Oslo Gardermoen Airport to Colorado is about 4628 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Oslo Gardermoen to Colorado that include hotel bookings?

    Yes. In addition to deals on Oslo Gardermoen to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oslo Gardermoen to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Colorado.

  • Can I find deals for business class flights from Oslo Gardermoen to Colorado?

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oslo Gardermoen Airport to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Colorado (average of $197). Flying from Oslo Gardermoen Airport to Colorado in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Oslo Gardermoen to Colorado

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Top 2 airlines flying from Oslo Gardermoen to Colorado

Discover the top 2 airlines that operate flights from Oslo Gardermoen to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$609Average$723FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$677Average$713FlexibilityNo cancel feeOn-time70%

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