$380+ Cheap flights from Keflavik Intl (KEF) 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Jan 21 — Jan 281
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Keflavik Intl to Colorado
Best flights from Keflavik Intl to ColoradoDiscover carefully curated flight deals from Keflavik Intl to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2025.
Discover carefully curated flight deals from Keflavik Intl to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2025.
This FlightHub deal was found by Cheapflights users on 12/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Thu 6/48:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$621
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Mon 5/184:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Wed 6/34:40 pmDEN - KEF
Nonstop7h 20mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Tue 5/194:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Sun 5/318:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Sun 5/174:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Mon 6/14:40 pmDEN - KEF
Nonstop7h 20mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Mon 5/184:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Sun 5/318:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Sat 5/2310:30 amKEF - DEN
Nonstop7h 55mIcelandair
Fri 6/58:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Sun 5/174:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Thu 6/48:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/20. 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.
Sat 5/234:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Sun 5/318:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/20![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Sat 5/234:50 pmKEF - DEN
Nonstop8h 10mIcelandair
Sat 6/68:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
This Icelandair deal was found by Cheapflights users on 12/21. 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.
Sat 5/2310:30 amKEF - DEN
Nonstop7h 55mIcelandair
Wed 6/38:10 pmDEN - KEF
Nonstop7h 15mIcelandair
Deal found 12/21![Icelandair logo]()
$632
Find flight deals from Keflavik Intl to Colorado
Keep the following information in mind while searching for Keflavik Intl to Colorado flight deals. Data was last updated December 22, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $564 (ResecentrumGruppen) |
One-way from | $380 (Kiwi.com) |
Good one-way deal | $532 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Keflavik Intl 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 December 22, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Colorado that are best for you.
Fly from
Keflavik Intl
Fly to
Colorado
Route
Depart
Return
Price
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Tue 5/19
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Thu 6/4
8:10 pm-9:25 am
Nonstop7h 15m
$621
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Mon 5/18
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Wed 6/3
4:40 pm-6:00 am
Nonstop7h 20m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Tue 5/19
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Sun 5/31
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sun 5/17
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Mon 6/1
4:40 pm-6:00 am
Nonstop7h 20m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Mon 5/18
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Sun 5/31
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sat 5/23
10:30 am-12:25 pm
Nonstop7h 55m
Denver Intl
Fri 6/5
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sun 5/17
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Thu 6/4
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sat 5/23
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Sun 5/31
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sat 5/23
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Sat 6/6
8:10 pm-9:25 am
Nonstop7h 15m
$632
ReykjavikDenver
KEF - DEN
KEFDEN
Reykjavik Keflavik Intl
Sat 5/23
10:30 am-12:25 pm
Nonstop7h 55m
Denver Intl
Wed 6/3
8:10 pm-9:25 am
Nonstop7h 15m
$632
Showing 1-10 of 22 results
Best time to book a flight from Keflavik Intl to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to Colorado
What is the cheapest time of day to fly from KEF to CO?
Find hourly flight availability from Keflavik Intl 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 December 22, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Reykjavik Keflavik Intl Airport to Colorado as you normally would.