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Iceland

$310+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KEF
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheap flight deals from Colorado to Iceland

Best flights from Colorado to Iceland
Discover carefully curated flight deals from Colorado to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 2, 2026.

This KLM deal was found by Cheapflights users on 12/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:31 amDEN - KEF
2 stops16h 59mKLM
Wed 4/2211:25 amKEF - DEN
1 stop17h 24mKLM
Deal found 12/30$580
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:40 amDEN - KEF
1 stop20h 50mDelta
Sun 4/1211:25 amKEF - DEN
1 stop16h 21mDelta
Deal found 12/30$588
This United Airlines deal was found by Cheapflights users on 1/1. 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.
Sun 5/1711:42 amCOS - KEF
1 stop14h 48mUnited Airlines
Tue 5/2612:00 pmKEF - COS
1 stop15h 40mUnited Airlines
Deal found 1/1$817
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:40 amDEN - KEF
1 stop20h 50mDelta
Mon 4/1311:25 amKEF - DEN
1 stop17h 24mDelta
Deal found 12/30$588
This KLM deal was found by Cheapflights users on 12/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:40 amDEN - KEF
1 stop20h 50mKLM
Thu 4/1611:25 amKEF - DEN
1 stop14h 17mKLM
Deal found 12/30$588
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:40 amDEN - KEF
1 stop20h 50mDelta
Sun 4/1211:25 amKEF - DEN
1 stop16h 21mDelta
Deal found 12/30$588
This KLM deal was found by Cheapflights users on 12/31. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:00 pmDEN - KEF
1 stop9h 00mKLM
Sun 5/1711:25 amKEF - DEN
1 stop17h 24mKLM
Deal found 12/31$633
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:30 amDEN - KEF
2 stops22h 00mDelta
Thu 5/711:25 amKEF - DEN
2 stops18h 26mDelta
Deal found 12/31$607
This Delta deal was found by Cheapflights users on 1/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:15 amDEN - KEF
2 stops19h 15mDelta
Wed 5/139:30 amKEF - DEN
1 stop12h 01mDelta
Deal found 1/1$608
This United Airlines deal was found by Cheapflights users on 1/1. 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.
Sun 5/176:00 amCOS - KEF
1 stop20h 30mUnited Airlines
Fri 5/2912:00 pmKEF - COS
1 stop15h 40mUnited Airlines
Deal found 1/1$817
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Sun 5/176:00 amCOS - KEF
1 stop20h 30mUnited Airlines
Wed 5/2711:30 amKEF - COS
2 stops18h 29mUnited Airlines
Deal found 12/31$820
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Sat 5/166:35 pmCOS - KEF
2 stops31h 55mUnited Airlines
Fri 5/2912:00 pmKEF - COS
2 stops15h 58mUnited Airlines
Deal found 12/31$820
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Sat 5/165:13 pmCOS - KEF
2 stops33h 17mUnited Airlines
Tue 5/2612:00 pmKEF - COS
2 stops30h 03mUnited Airlines
Deal found 12/31$820
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:55 pmCOS - KEF
2 stops30h 25mDelta
Fri 5/299:30 amKEF - COS
2 stops18h 59mDelta
Deal found 12/31$820
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Mon 5/186:35 pmCOS - KEF
2 stops31h 55mUnited Airlines
Tue 5/2612:00 pmKEF - COS
2 stops30h 03mUnited Airlines
Deal found 12/31$820
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 amCOS - KEF
2 stops21h 30mDelta
Tue 5/269:30 amKEF - COS
2 stops18h 59mDelta
Deal found 12/31$820
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:55 pmCOS - KEF
2 stops30h 25mDelta
Wed 5/278:50 amKEF - COS
2 stops18h 32mDelta
Deal found 12/31$820
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 amCOS - KEF
2 stops21h 30mDelta
Wed 5/279:30 amKEF - COS
2 stops18h 59mDelta
Deal found 12/31$820
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 amCOS - KEF
2 stops18h 20mDelta
Tue 5/269:30 amKEF - COS
2 stops18h 59mDelta
Deal found 12/31$820
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Mon 6/156:00 pmDRO - KEF
2 stops32h 30mUnited Airlines
Wed 6/2410:00 amKEF - DRO
2 stops42h 05mUnited Airlines
Deal found 12/31$1,144

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 January 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$518
(Kiwi.com)

One-way from

$310
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$638

Good round-trip deal

$459 or less

Good one-way deal

$315 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. 2% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 2, 2026.
Use the filters below to find and compare flights from Colorado to Iceland that are best for you.

Fly from

Colorado

Fly to

Iceland

Route

Depart

Return

Price

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 4/8

10:31 am-9:30 am

2 stops16h 59m

Reykjavik Keflavik Intl

Wed 4/22

11:25 am-10:49 pm

1 stop17h 24m

$580

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Thu 4/9

6:40 am-9:30 am

1 stop20h 50m

Reykjavik Keflavik Intl

Sun 4/12

11:25 am-9:46 pm

1 stop16h 21m

$588

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 4/10

6:40 am-9:30 am

1 stop20h 50m

Reykjavik Keflavik Intl

Mon 4/13

11:25 am-10:49 pm

1 stop17h 24m

$588

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 4/10

6:40 am-9:30 am

1 stop20h 50m

Reykjavik Keflavik Intl

Thu 4/16

11:25 am-7:42 pm

1 stop14h 17m

$588

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 4/10

6:40 am-9:30 am

1 stop20h 50m

Reykjavik Keflavik Intl

Sun 4/12

11:25 am-9:46 pm

1 stop16h 21m

$588

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 4/27

5:30 am-9:30 am

2 stops22h 00m

Reykjavik Keflavik Intl

Thu 5/7

11:25 am-11:51 pm

2 stops18h 26m

$607

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 5/6

8:15 am-9:30 am

2 stops19h 15m

Reykjavik Keflavik Intl

Wed 5/13

9:30 am-3:31 pm

1 stop12h 01m

$608

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sun 5/10

4:00 pm-7:00 am

1 stop9h 00m

Reykjavik Keflavik Intl

Sun 5/17

11:25 am-10:49 pm

1 stop17h 24m

$633

Colorado SpringsReykjavik

COS - KEF

COSKEF

Colorado Springs

Sun 5/17

11:42 am-8:30 am

1 stop14h 48m

Reykjavik Keflavik Intl

Tue 5/26

12:00 pm-9:40 pm

1 stop15h 40m

$817

Colorado SpringsReykjavik

COS - KEF

COSKEF

Colorado Springs

Sun 5/17

6:00 am-8:30 am

1 stop20h 30m

Reykjavik Keflavik Intl

Fri 5/29

12:00 pm-9:40 pm

1 stop15h 40m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 30 results
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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, November is the cheapest month in which you can book a flight from Colorado to Iceland (average of $372). Flying from Colorado to Iceland in December is currently the most expensive (average of $576). 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 January 2, 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.

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?

    KLM, Delta, and United Airlines can get you from Colorado to Iceland in just under 14h 48m. Your travel time can differ by up to 6h 02m. The distance between Colorado and Iceland is about 3618 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, November is the cheapest month in which you can book a flight from Colorado to Iceland (average of $372). Flying from Colorado to Iceland in December is currently the most expensive (average of $576). 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 January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$420Average$666FlexibilityNo cancel feeOn-time76%

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