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$260+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$607
(ResecentrumGruppen)

One-way from

$260
(Kiwi.com)

Popular in

March

Cheapest in

November

Average price

$673

Good one-way deal

$455 or less
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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Highest demand for flights based on searches. 10% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This ResecentrumGruppen deal was found by Cheapflights users on 7/3. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/284:50 pmKEF - DEN
Nonstop8h 05mIcelandair
Fri 9/54:40 pmDEN - KEF
Nonstop7h 20mIcelandair
Deal found 7/3$607
This Justfly.com deal was found by Cheapflights users on 7/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:10 pmKEF - DEN
2 stops34h 34mScandinavian Airlines
Sat 8/3012:32 pmDEN - KEF
2 stops29h 18mScandinavian Airlines
Deal found 7/1$744
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/284:50 pmKEF - DEN
Nonstop8h 05mMultiple Airlines
Fri 9/510:03 amDEN - KEF
1 stop14h 32mMultiple Airlines
Deal found 7/3$802

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 July 3, 2025.
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

Thu 8/28

4:50 pm-6:55 pm

Nonstop8h 05m

Denver Intl

Fri 9/5

4:40 pm-6:00 am

Nonstop7h 20m

$607

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Sun 8/24

5:10 pm-9:44 pm

2 stops34h 34m

Denver Intl

Sat 8/30

12:32 pm-11:50 pm

2 stops29h 18m

$744

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Thu 8/28

4:50 pm-6:55 pm

Nonstop8h 05m

Denver Intl

Fri 9/5

10:03 am-6:35 am

1 stop14h 32m

$802

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Thu 10/2

9:35 am-11:24 am

1 stop31h 49m

$260

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Mon 10/6

9:35 am-9:11 pm

2 stops17h 36m

$318

ReykjavikDenver

KEF - DEN

KEFDEN

Reykjavik Keflavik Intl

Sun 10/5

4:50 pm-6:55 pm

Nonstop8h 05m

$482

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 July 3, 2025.

One of the essential ways to save on airfare from Reykjavik Keflavik Intl Airport to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

Weekly flight availability from Reykjavik Keflavik Intl Airport to Denver

Explore weekly flight availability from Keflavik Intl to Denver. 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 3, 2025.

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines, WestJet, and Icelandair from Reykjavik Keflavik Intl Airport to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,416 reviews

Boarding

7.6

Crew

7.9

Overall

7.3

Entertainment

6.6

Comfort

7.2

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2025

DUS - CPH

SAS cancelled my flight on returning by overbooking and sending me to another airline that had also overbooked. All in this resulted in me having to book with another airline that cost me over $3000 so I could get home as I had work duties the next day. SAS refused to help other than to make the initial referral with checking if my itinerary could be accommodated. I have never been treated so poorly by an airline.
Scandinavian Airlines
7.3
Good
1,416 reviews
Scandinavian Airlines
7.3
Good
1,416 reviews

Boarding

7.6

Crew

7.9

Overall

7.3

Entertainment

6.6

Comfort

7.2

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2025

DUS - CPH

SAS cancelled my flight on returning by overbooking and sending me to another airline that had also overbooked. All in this resulted in me having to book with another airline that cost me over $3000 so I could get home as I had work duties the next day. SAS refused to help other than to make the initial referral with checking if my itinerary could be accommodated. I have never been treated so poorly by an airline.
WestJet
7.2
Good
2,917 reviews
Scandinavian Airlines
7.3
Good
1,416 reviews

Boarding

7.6

Crew

7.9

Overall

7.3

Entertainment

6.6

Comfort

7.2

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2025

DUS - CPH

SAS cancelled my flight on returning by overbooking and sending me to another airline that had also overbooked. All in this resulted in me having to book with another airline that cost me over $3000 so I could get home as I had work duties the next day. SAS refused to help other than to make the initial referral with checking if my itinerary could be accommodated. I have never been treated so poorly by an airline.
Icelandair
7.0
Good
514 reviews
Scandinavian Airlines
7.3
Good
1,416 reviews

Boarding

7.6

Crew

7.9

Overall

7.3

Entertainment

6.6

Comfort

7.2

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2025

DUS - CPH

SAS cancelled my flight on returning by overbooking and sending me to another airline that had also overbooked. All in this resulted in me having to book with another airline that cost me over $3000 so I could get home as I had work duties the next day. SAS refused to help other than to make the initial referral with checking if my itinerary could be accommodated. I have never been treated so poorly by an airline.

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 1 inbound flight from Reykjavik Keflavik Intl per day. 1 airline has flights to Denver Intl from Reykjavik Keflavik Intl on a regular basis.

  • What are the cheapest airlines flying from Reykjavik Keflavik Intl Airport to Denver round-trip?

    Cheapflights users have booked flights from Reykjavik Keflavik Intl Airport to Denver round-trip from $607. Another airline that can offer you cheap pricing is Scandinavian Airlines. Icelandair is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • 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 $767, our data indicates the cheapest price to be $455. The most popular route (Reykjavik Keflavik Intl - Denver Intl), is priced around $616.

  • 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.

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

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

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Broomfield
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs

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Top airline flying from Keflavik Intl to Denver

Discover the top airline that operate flights from Keflavik Intl to Denver. 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$543Average$629FlexibilityNo cancel feeOn-time76%

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