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$431+ Cheap flights from Keflavik Intl (KEF) to Denver (DEN)

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$608
(Booking.com)

One-way from

$431
(Kiwi.com)

Good one-way deal

$481 or less
Provider with most accurate pricing for Reykjavik Keflavik Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-Denver Intl flights.
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From Reykjavik Keflavik Intl to Denver Intl
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One-way flight from Reykjavik Keflavik Intl to Denver Intl
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to Denver Intl.
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Find flight deals from Keflavik Intl to Denver

Cheapest flights from Keflavik Intl to Denver
Explore the most affordable flight options available from Keflavik Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 14, 2026.

This Booking.com deal was found by Cheapflights users on 1/12. 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.
mié. 7/14:50 pm
KEF
-
DEN
Nonstop8h 10m
Icelandair
mar. 7/148:10 pm
DEN
-
KEF
Nonstop7h 15m
Icelandair
Deal found 1/12$608
This flugladen.de deal was found by Cheapflights users on 1/12. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/14:50 pm
KEF
-
DEN
Nonstop8h 10m
Multiple Airlines
mar. 7/1410:34 pm
DEN
-
KEF
1 stop25h 31m
Multiple Airlines
Deal found 1/12$773
This Flighttix deal was found by Cheapflights users on 1/13. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/85:00 pm
KEF
-
DEN
1 stop26h 51m
Multiple Airlines
mar. 3/174:40 pm
DEN
-
KEF
Nonstop7h 25m
Multiple Airlines
Deal found 1/13$777
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/274:50 pm
KEF
-
DEN
1 stop13h 09m
Icelandair
vie. 3/63:40 pm
DEN
-
KEF
Nonstop7h 25m
Icelandair
Deal found 1/13$800
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
vie. 2/274:55 pm
KEF
-
DEN
Nonstop8h 10m
Multiple Airlines
vie. 3/611:59 pm
DEN
-
KEF
3 stops52h 11m
Multiple Airlines
Deal found 1/13$890
This Finnair deal was found by Cheapflights users on 1/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/15:15 pm
KEF
-
DEN
2 stops29h 15m
Finnair
mar. 7/146:40 pm
DEN
-
KEF
2 stops31h 10m
Finnair
Deal found 1/12$939
This Finnair deal was found by Cheapflights users on 1/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/810:00 am
KEF
-
DEN
2 stops40h 05m
Finnair
mar. 3/176:25 pm
DEN
-
KEF
2 stops32h 50m
Finnair
Deal found 1/13$1,019
This Scandinavian Airlines deal was found by Cheapflights users on 1/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/87:35 am
KEF
-
DEN
2 stops21h 48m
Scandinavian Airlines
mar. 3/176:40 am
DEN
-
KEF
3 stops22h 05m
Scandinavian Airlines
Deal found 1/13$1,079

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to Denver 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 enero 14, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Denver that are best for you.

Fly from

Keflavik Intl

Fly to

Denver

Route

Depart

Return

Price

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

mié. 7/1

4:50 pm-7:00 pm

Nonstop8h 10m

Denver Intl

mar. 7/14

8:10 pm-9:25 am

Nonstop7h 15m

$608

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

vie. 2/27

4:50 pm-10:59 pm

1 stop13h 09m

Denver Intl

vie. 3/6

3:40 pm-6:05 am

Nonstop7h 25m

$800

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

dom. 3/8

5:00 pm-1:51 pm

1 stop26h 51m

Denver Intl

mar. 3/17

10:44 pm-9:45 pm

1 stop17h 01m

$846

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

vie. 2/27

4:55 pm-6:05 pm

Nonstop8h 10m

Denver Intl

vie. 3/6

11:59 pm-11:10 am

3 stops52h 11m

$890

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

mié. 7/1

8:20 pm-8:28 am

1 stop18h 08m

Denver Intl

mar. 7/14

10:34 pm-6:05 am

1 stop25h 31m

$891

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

mié. 7/1

5:15 pm-4:30 pm

2 stops29h 15m

Denver Intl

mar. 7/14

6:40 pm-7:50 am

2 stops31h 10m

$939

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

dom. 3/8

10:00 am-8:05 pm

2 stops40h 05m

Denver Intl

mar. 3/17

6:25 pm-9:15 am

2 stops32h 50m

$1,019

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

dom. 3/8

7:35 am-10:23 pm

2 stops21h 48m

Denver Intl

mar. 3/17

6:40 am-10:45 am

3 stops22h 05m

$1,079

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

vie. 2/27

10:00 am-6:00 pm

2 stops39h 00m

Denver Intl

vie. 3/6

12:33 pm-5:15 pm

2 stops21h 42m

$1,116

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

mié. 7/1

10:00 am-7:00 pm

2 stops15h 00m

Denver Intl

mar. 7/14

11:30 am-8:45 am

1 stop15h 15m

$1,159

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 17 results
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Compare providers for flights from Keflavik Intl to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Keflavik Intl to Denver in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Reykjavik Keflavik Intl Airport-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

What is the cheapest time of day to fly from KEF to DEN?

Find hourly flight availability from Keflavik Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 14, 2026.

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 Denver as you normally would.

Related info for your journey

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

  • What airport do you fly into for flights to Denver from Reykjavik Keflavik Intl?

    For a flight from Reykjavik Keflavik Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 0 inbound flights from Reykjavik Keflavik Intl per day. 0 airlines have flights to Denver Intl from Reykjavik Keflavik Intl on a regular basis.

  • How long is the flight from Reykjavik Keflavik Intl Airport to Denver?

    Departing from Reykjavik Keflavik Intl Airport to Denver will take you 8h 10m. Reykjavik Keflavik Intl Airport and Denver are separated by a distance of 3556 mi. Generally, flights for this route are nonstop.

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

    Looking for the cheapest flight from Reykjavik Keflavik Intl Airport to Denver? While on average our users pay $483, our data indicates the cheapest price to be $465. The most popular route (Reykjavik Keflavik Intl - Denver Intl), is priced around $577.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Keflavik Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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