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$322+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$542
(Kiwi.com)

One-way from

$322
(Kiwi.com)

Good one-way deal

$467 or less
From Reykjavik Keflavik Intl to Colorado
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One-way flight from Reykjavik Keflavik Intl to Colorado
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to Colorado.
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Find flight deals from Keflavik Intl to Colorado

Cheapest flights from Keflavik Intl to Colorado
Explore the most affordable flight options available from Keflavik Intl to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:35 amKEF - DEN
1 stop31h 49mWestJet
Fri 9/2612:15 pmDEN - KEF
1 stop14h 00mWestJet
Deal found 7/30$542
This Ticket deal was found by Cheapflights users on 7/31. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:50 pmKEF - DEN
Nonstop8h 05mIcelandair
Fri 10/34:40 pmDEN - KEF
Nonstop7h 20mIcelandair
Deal found 7/31$578
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:35 amKEF - DEN
2 stops15h 48mMultiple Airlines
Fri 9/2612:15 pmDEN - KEF
1 stop14h 00mMultiple Airlines
Deal found 7/30$690
This Justfly.com deal was found by Cheapflights users on 7/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:10 pmKEF - DEN
2 stops35h 25mScandinavian Airlines
Fri 10/36:55 amDEN - KEF
2 stops34h 55mScandinavian Airlines
Deal found 7/31$770

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 July 31, 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

Thu 9/18

9:35 am-11:24 am

1 stop31h 49m

Denver Intl

Fri 9/26

12:15 pm-8:15 am

1 stop14h 00m

$542

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Thu 9/25

4:50 pm-6:55 pm

Nonstop8h 05m

Denver Intl

Fri 10/3

4:40 pm-6:00 am

Nonstop7h 20m

$578

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Thu 9/18

9:35 am-7:23 pm

2 stops15h 48m

Denver Intl

Fri 9/26

12:15 pm-8:15 am

1 stop14h 00m

$690

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Thu 9/25

5:10 pm-10:35 pm

2 stops35h 25m

Denver Intl

Fri 10/3

6:55 am-11:50 pm

2 stops34h 55m

$770

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Wed 9/24

12:25 am-3:35 pm

1 stop21h 10m

Denver Intl

Fri 10/3

4:15 pm-12:10 am

1 stop25h 55m

$1,064

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Fri 9/26

3:05 pm-3:00 pm

1 stop29h 55m

$322

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Fri 8/15

10:35 am-12:30 pm

Nonstop7h 55m

$484

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Sat 8/16

9:35 am-11:27 am

1 stop31h 52m

$624

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Fri 10/3

10:30 am-4:25 pm

1 stop35h 55m

$733

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Fri 9/5

8:45 am-10:09 pm

2 stops19h 24m

$760

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 12 results
1
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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 July 31, 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.

Weekly flight availability from Reykjavik Keflavik Intl Airport to Colorado

Explore weekly flight availability from Keflavik Intl to Colorado. 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 31, 2025.

The most flights from KEF to USCO are scheduled on a Monday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

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 July 31, 2025.
See what other customers who have flown with Finnair, Scandinavian Airlines, and American Airlines from Reykjavik Keflavik Intl Airport to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,316 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Scandinavian Airlines
7.4
Good
1,457 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
WestJet
7.2
Good
2,978 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.0
Good
520 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

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

  • What are the cheapest airlines to fly from Reykjavik Keflavik Intl Airport to Colorado one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $484. Users have also found prices from $624 and $733 on WestJet and American Airlines, respectively.

  • What are the cheapest flights from Reykjavik Keflavik Intl Airport to Colorado?

    Looking at all options, your cheapest flight can be booked for $456. While the most popular route (Reykjavik Keflavik Intl - Denver Intl) can be booked for $583 on average our data indicates $951 when flying from Reykjavik Keflavik Intl Airport to Colorado.

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

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

  • How can I find direct flights from Keflavik Intl to Colorado?

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

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

    Yes. Cheapflights offers flight deals from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Colorado (average of $197). Flying from Reykjavik Keflavik Intl 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.

See more FAQs

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Top airline flying from Keflavik Intl to Colorado

Discover the top airline that operate flights from Keflavik Intl 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$543Average$623FlexibilityNo cancel feeOn-time76%

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