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Keflavik Intl

$247+ Cheap flights from Colorado to Keflavik Intl (KEF)

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KEF
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Colorado to Keflavik Intl

Keep the following information in mind while searching for Colorado to Keflavik Intl flight deals. Data was last updated March 31, 2025.

Round-trip from

$562
(Gotogate)

One-way from

$247
(Cheapflightsfares)

Good round-trip deal

$594 or less

Good one-way deal

$283 or less
From Colorado to Reykjavik Keflavik Intl
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One-way flight from Colorado to Reykjavik Keflavik Intl
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Price to beat on a round-trip flight from Colorado to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Colorado to Reykjavik Keflavik Intl.
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Find flight deals from Colorado to Keflavik Intl

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

This WestJet deal was found by Cheapflights users on 3/30. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/47:40 pmDEN - KEF
1 stop30h 35mWestJet
Wed 7/169:35 amKEF - DEN
1 stop31h 52mWestJet
Deal found 3/30$562
This Gotogate deal was found by Cheapflights users on 3/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/144:40 pmDEN - KEF
Nonstop7h 20mIcelandair
Sat 6/2810:35 amKEF - DEN
Nonstop7h 55mIcelandair
Deal found 3/30$566
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Wed 5/2812:15 pmDEN - KEF
1 stop14h 00mMultiple Airlines
Sat 5/319:35 amKEF - DEN
2 stops19h 45mMultiple Airlines
Deal found 3/30$573
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:30 pmDEN - KEF
1 stop34h 20mAmerican Airlines
Wed 11/1211:45 amKEF - DEN
2 stops27h 35mAmerican Airlines
Deal found 3/30$659
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:25 pmDEN - KEF
1 stop14h 50mLufthansa
Thu 12/43:10 pmKEF - DEN
1 stop30h 30mLufthansa
Deal found 3/30$663
This Delta deal was found by Cheapflights users on 3/31. 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.
Fri 10/1012:59 amDEN - KEF
2 stops23h 21mDelta
Sun 10/198:50 amKEF - DEN
1 stop18h 50mDelta
Deal found 3/31$665
This Priceline deal was found by Cheapflights users on 3/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:32 pmDEN - KEF
2 stops39h 13mBritish Airways
Mon 11/2411:45 amKEF - DEN
2 stops41h 24mBritish Airways
Deal found 3/30$689
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/161:25 pmDEN - KEF
2 stops12h 50mAir Canada
Sat 8/239:30 amKEF - DEN
2 stops32h 54mAir Canada
Deal found 3/30$691
This Aeromexico deal was found by Cheapflights users on 3/31. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/211:50 pmDEN - KEF
2 stops34h 30mAir France
Tue 7/88:50 amKEF - DEN
1 stop14h 37mAir France
Deal found 3/31$766
This United deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:15 amDRO - KEF
2 stops42h 55mUnited Airlines
Tue 7/229:50 amKEF - DRO
2 stops40h 49mUnited Airlines
Deal found 3/31$988
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/81:30 pmDRO - KEF
2 stops28h 05mLufthansa
Tue 7/221:15 amKEF - DRO
2 stops25h 24mLufthansa
Deal found 3/30$1,112

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to Keflavik Intl 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 March 31, 2025.
Use the filters below to find and compare flights from Colorado to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Colorado

Fly to

Keflavik Intl

Route

Depart

Return

Price

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 7/4

7:40 pm-8:15 am

1 stop30h 35m

Reykjavik Keflavik Intl

Wed 7/16

9:35 am-11:27 am

1 stop31h 52m

$562

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 6/14

4:40 pm-6:00 am

Nonstop7h 20m

Reykjavik Keflavik Intl

Sat 6/28

10:35 am-12:30 pm

Nonstop7h 55m

$566

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 5/28

12:15 pm-8:15 am

1 stop14h 00m

Reykjavik Keflavik Intl

Sat 5/31

9:35 am-11:20 pm

2 stops19h 45m

$573

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 8/16

1:25 pm-8:15 am

2 stops12h 50m

Reykjavik Keflavik Intl

Sat 8/23

9:30 am-12:24 pm

2 stops32h 54m

$691

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 7/2

4:03 pm-7:00 am

1 stop8h 57m

Reykjavik Keflavik Intl

Thu 7/17

11:25 am-10:56 pm

1 stop17h 31m

$699

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sun 5/25

4:05 pm-7:00 am

1 stop8h 55m

Reykjavik Keflavik Intl

Tue 6/3

8:50 am-5:30 pm

1 stop14h 40m

$704

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 4/14

10:11 am-1:05 pm

2 stops20h 54m

Reykjavik Keflavik Intl

Wed 4/23

12:25 am-3:55 pm

1 stop21h 30m

$722

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 6/21

1:50 pm-6:20 am

2 stops34h 30m

Reykjavik Keflavik Intl

Tue 7/8

8:50 am-5:27 pm

1 stop14h 37m

$766

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 5/24

5:45 pm-8:30 am

1 stop32h 45m

Reykjavik Keflavik Intl

Sun 6/1

9:30 am-10:27 am

1 stop30h 57m

$781

DurangoReykjavik

DRO - KEF

DROKEF

Durango La Plata County

Tue 7/8

7:15 am-8:10 am

2 stops42h 55m

Reykjavik Keflavik Intl

Tue 7/22

9:50 am-8:39 pm

2 stops40h 49m

$988

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 23 results
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Best time to book a flight from Colorado to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl 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 Reykjavik Keflavik Intl Airport

What is the cheapest month to book a flight from Colorado to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Colorado to Reykjavik Keflavik Intl Airport (average of $328). Flying from Colorado to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 KEF?

Find hourly flight availability from Colorado to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

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

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated March 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Finnair from Colorado to Reykjavik 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.
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Finnair
7.6
Good
1,267 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Air France
7.4
Good
1,425 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Colorado to Keflavik Intl. 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 Colorado to Reykjavik Keflavik Intl Airport one-way?

    The cheapest airlines for a one-way flight from Colorado to Reykjavik Keflavik Intl Airport are WestJet ($247), Icelandair ($383), and Air Canada ($484).

  • What are the most popular routes from Colorado to Reykjavik Keflavik Intl Airport?

    While some choose either Durango La Plata County - Reykjavik Keflavik Intl or Colorado Springs - Reykjavik Keflavik Intl, Denver Intl - Reykjavik Keflavik Intl is the most popular route from Colorado to Reykjavik Keflavik Intl Airport.

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

    Looking for the cheapest flight from Colorado to Reykjavik Keflavik Intl Airport? While on average our users pay $1,583, our data indicates the cheapest price to be $235. The most popular route (Denver Intl - Reykjavik Keflavik Intl), is priced around $552.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Colorado to Reykjavik Keflavik Intl Airport (average of $328). Flying from Colorado to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Colorado to Keflavik Intl

Discover the top 4 airlines that operate flights from Colorado to Keflavik Intl. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$499Average$703FlexibilityNo cancel feeOn-time67%
DeltaCheapest$542Average$762FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$547Average$662FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$592Average$965FlexibilityNo cancel feeOn-time69%
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