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Iceland

$315+ Cheap flights from Colorado to Iceland

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KEF
Aug 15 — Aug 221
Sat 8/15
Sat 8/22
1 adult, Economy
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Cheap flight deals from Colorado to Iceland

Cheapest flights from Colorado to Iceland
Explore the most affordable flight options available from Colorado to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2026.

This Gotogate deal was found by Cheapflights users on 7/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:05 pm
DEN
-
KEF
1 stop32h 40m
Air Canada
Fri 8/289:15 am
KEF
-
DEN
1 stop15h 40m
Air Canada
Deal found 7/12$405
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:25 am
DEN
-
KEF
1 stop14h 30m
United Airlines
Fri 10/29:15 am
KEF
-
DEN
2 stops36h 22m
United Airlines
Deal found 7/14$410
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/186:00 am
DEN
-
KEF
1 stop20h 30m
United Airlines
Fri 10/29:15 am
KEF
-
DEN
2 stops39h 10m
United Airlines
Deal found 7/12$411
This United deal was found by Cheapflights users on 7/13. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:30 am
DEN
-
KEF
1 stop21h 20m
Multiple Airlines
Fri 10/29:15 am
KEF
-
DEN
2 stops37h 43m
Multiple Airlines
Deal found 7/13$412
This Ticket deal was found by Cheapflights users on 7/12. 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.
Sat 8/228:10 pm
DEN
-
KEF
Nonstop7h 15m
Icelandair
Fri 8/284:50 pm
KEF
-
DEN
Nonstop8h 10m
Icelandair
Deal found 7/12$413
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/257:10 pm
DEN
-
KEF
2 stops30h 45m
United Airlines
Fri 10/29:15 am
KEF
-
DEN
2 stops39h 10m
United Airlines
Deal found 7/12$414
This United Airlines deal was found by Cheapflights users on 7/15. 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 10/1611:35 am
DEN
-
KEF
1 stop15h 10m
United Airlines
Fri 10/239:15 am
KEF
-
DEN
2 stops39h 10m
United Airlines
Deal found 7/15$415
This Expedia deal was found by Cheapflights users on 7/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:40 am
DEN
-
KEF
1 stop16h 15m
Air Canada
Wed 10/149:15 am
KEF
-
DEN
1 stop15h 31m
Air Canada
Deal found 7/12$416
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 pm
DEN
-
KEF
1 stop31h 40m
United Airlines
Mon 10/510:00 am
KEF
-
DEN
1 stop32h 23m
United Airlines
Deal found 7/14$417
This Air Canada deal was found by Cheapflights users on 7/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:35 am
DEN
-
KEF
1 stop15h 10m
Air Canada
Mon 10/510:00 am
KEF
-
DEN
2 stops36h 22m
Air Canada
Deal found 7/15$419
This Expedia deal was found by Cheapflights users on 7/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:30 am
COS
-
KEF
2 stops45h 15m
Air Canada
Sat 10/1010:00 am
KEF
-
COS
2 stops38h 50m
Air Canada
Deal found 7/15$913
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:55 am
COS
-
KEF
1 stop18h 55m
United Airlines
Tue 8/1810:00 am
KEF
-
COS
2 stops41h 27m
United Airlines
Deal found 7/14$978

Find flight deals from Colorado to Iceland

Keep the following information in mind while searching for Colorado to Iceland flight deals. Data was last updated July 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$405
(Gotogate)

One-way from

$315
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$628

Good round-trip deal

$673 or less

Good one-way deal

$298 or less
Provider with most accurate pricing for Denver Intl-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Reykjavik (REK) flights.
Search Deals
From Colorado to Iceland
Search Deals
One-way flight from Colorado to Iceland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Colorado to Iceland.
Search Deals
Price to beat on a one-way flight from Colorado to Iceland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Iceland 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 July 16, 2026.
Use the filters below to find and compare flights from Colorado to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 9/18

6:00 am-8:30 am

1 stop20h 30m

Reykjavik Keflavik Intl

Fri 10/2

9:15 am-2:15 pm

2 stops35h 00m

$411

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 10/16

8:29 pm-7:55 am

2 stops29h 26m

Reykjavik Keflavik Intl

Fri 10/23

9:15 am-6:25 pm

2 stops39h 10m

$414

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 9/18

11:59 pm-7:00 am

1 stop25h 01m

Reykjavik Keflavik Intl

Thu 10/1

10:00 am-12:23 pm

1 stop32h 23m

$417

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Tue 9/15

7:10 pm-8:50 am

1 stop31h 40m

Reykjavik Keflavik Intl

Mon 10/5

10:00 am-12:23 pm

1 stop32h 23m

$417

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Tue 10/13

6:00 am-7:55 am

2 stops19h 55m

Reykjavik Keflavik Intl

Tue 10/20

10:00 am-12:22 pm

2 stops32h 22m

$419

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sun 8/16

8:31 pm-8:50 am

1 stop30h 19m

Reykjavik Keflavik Intl

Mon 8/24

9:15 am-10:33 am

1 stop31h 18m

$425

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 8/26

11:59 pm-8:30 am

1 stop26h 31m

Reykjavik Keflavik Intl

Fri 9/4

9:15 am-10:33 am

1 stop31h 18m

$425

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Tue 9/15

7:10 pm-8:50 am

1 stop31h 40m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-10:31 am

1 stop31h 16m

$425

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Thu 10/1

11:25 am-7:55 am

1 stop14h 30m

Reykjavik Keflavik Intl

Sat 10/10

10:00 am-10:22 am

1 stop30h 22m

$428

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 10/12

11:35 am-8:45 am

1 stop15h 10m

Reykjavik Keflavik Intl

Fri 10/16

9:15 am-10:31 am

1 stop31h 16m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Colorado to Iceland

Have a flexible travel schedule? Discover the best time to fly to Iceland from Colorado 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 Colorado to Iceland

What is the cheapest month to book a flight from Colorado to Iceland?

Currently, July is the cheapest month in which you can book a flight from Colorado to Iceland (average of $334). Flying from Colorado to Iceland in September is currently the most expensive (average of $448). 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 CO to IS?

Find hourly flight availability from Colorado to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 16, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Iceland as you normally would.

Weekly flight availability from Colorado to Iceland

Explore weekly flight availability from Colorado to Iceland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 16, 2026.

The most flights from USCO to IS0 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How far ahead should I book a flight from Colorado to Iceland?

The best time to book flights from Colorado to Iceland is 2 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Iceland. 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 Colorado to Iceland?

    United Airlines and Air Canada can get you from Colorado to Iceland in just under 20h 30m. Your travel time can differ by up to 24h 45m. The distance between Colorado and Iceland is about 3556 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Colorado to Iceland?

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

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

    Yes. Cheapflights offers flight deals from Colorado to Iceland 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 Colorado to Iceland?

    Currently, July is the cheapest month in which you can book a flight from Colorado to Iceland (average of $334). Flying from Colorado to Iceland in September is currently the most expensive (average of $448). 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.

See more FAQs

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Alternative routes for Colorado to Iceland

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Colorado to Iceland

Discover the top airline that operate flights from Colorado to Iceland. 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 July 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$432Average$626FlexibilityNo cancel feeOn-time76%

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