$245+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Colorado to Keflavik Intl with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Colorado to Keflavik Intl
Keep the following information in mind while searching for Colorado to Keflavik Intl flight deals. Data was last updated May 1, 2025.
Round-trip from | $564 (WestJet) |
|---|---|
One-way from | $245 (Kiwi.com) |
Good round-trip deal | $563 or less |
Good one-way deal | $308 or less |
Find flight deals from Colorado to Keflavik Intl
Cheapest flights from Colorado to Keflavik IntlExplore 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 May 1, 2025.
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 May 1, 2025.
This WestJet deal was found by Cheapflights users on 4/30. 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.
This Icelandair deal was found by Cheapflights users on 4/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
This American Airlines deal was found by Cheapflights users on 4/30. 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.
This Air Canada deal was found by Cheapflights users on 4/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gurufare deal was found by Cheapflights users on 4/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 5/1. 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.
This KLM deal was found by Cheapflights users on 4/30. 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.
This Lufthansa deal was found by Cheapflights users on 4/30. 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.
This United Airlines deal was found by Cheapflights users on 4/29. 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.
This Air France deal was found by Cheapflights users on 4/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 May 1, 2025.
Use the filters below to find and compare flights from Colorado to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Tue 7/8
12:15 pm-8:15 am
1 stop14h 00m
Reykjavik Keflavik Intl
Sun 7/13
9:35 am-11:27 am
1 stop31h 52m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Fri 9/19
4:40 pm-6:00 am
Nonstop7h 20m
Reykjavik Keflavik Intl
Mon 10/6
4:50 pm-6:55 pm
Nonstop8h 05m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Sun 8/17
7:50 am-8:30 am
1 stop18h 40m
Reykjavik Keflavik Intl
Sun 8/24
9:30 am-12:17 pm
2 stops32h 47m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Wed 7/30
10:52 am-4:55 am
1 stop12h 03m
Reykjavik Keflavik Intl
Tue 8/5
9:35 am-4:00 am
2 stops24h 25m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Wed 8/13
7:50 am-8:10 am
2 stops18h 20m
Reykjavik Keflavik Intl
Fri 8/22
9:30 am-7:35 pm
2 stops16h 05m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Mon 5/12
7:00 am-6:20 am
1 stop17h 20m
Reykjavik Keflavik Intl
Mon 5/19
8:50 am-1:55 pm
1 stop11h 05m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Thu 10/16
12:00 pm-9:30 am
2 stops15h 30m
Reykjavik Keflavik Intl
Wed 10/22
8:45 am-8:20 pm
2 stops17h 35m
DenverReykjavik
DEN - KEF
DENKEF
Denver Intl
Sun 5/11
5:59 pm-11:35 pm
1 stop23h 36m
Reykjavik Keflavik Intl
Sat 5/17
12:25 am-3:35 pm
1 stop21h 10m
DurangoReykjavik
DRO - KEF
DROKEF
Durango La Plata County
Tue 9/23
5:30 am-8:35 am
2 stops21h 05m
Reykjavik Keflavik Intl
Tue 9/30
10:00 am-8:36 pm
2 stops40h 36m
Colorado SpringsReykjavik
COS - KEF
COSKEF
Colorado Springs
Wed 5/14
6:00 am-9:30 am
2 stops45h 30m
Reykjavik Keflavik Intl
Tue 5/20
8:50 am-9:00 pm
2 stops18h 10m
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.
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 May 1, 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 May 1, 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and KLM 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.
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Boarding
Entertainment
Food
Crew
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
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.
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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.
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 May 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$499 | Average$713 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$537 | Average$655 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$542 | Average$720 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$662 | Average$970 | FlexibilityNo cancel fee | On-time69% |