£216 Cheap Flights from Reykjavik (KEF) to Denver (DEN)

View £216 flight on Tue, 26 May 2026Opens in a new window

Popular airlines from Keflavik International Airport (KEF) to Denver International Airport (DEN)

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Cheap Flights from Reykjavik (KEF) to Denver (DEN)

Prices were available within the past 7 days and start at £216 for one-way flights and £500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 18 Nov - Wed, 25 Nov
KEF
Reykjavik
DEN
Denver
£500 Return, found 2 days ago
£500
Return
found 2 days ago
Select Icelandair flight, departing Wed, 18 Nov from Reykjavik to Denver, returning Wed, 25 Nov, priced at £500 found 2 days ago
Icelandair
Tue, 7 Jul - Sat, 11 Jul
KEF
Reykjavik
DEN
Denver
£510 Return, found 2 days ago
£510
Return
found 2 days ago
Select Icelandair flight, departing Tue, 7 Jul from Reykjavik to Denver, returning Sat, 11 Jul, priced at £510 found 2 days ago
Icelandair
Wed, 14 Oct - Sun, 18 Oct
KEF
Reykjavik
DEN
Denver
£517 Return, found 1 day ago
£517
Return
found 1 day ago
Select Icelandair flight, departing Wed, 14 Oct from Reykjavik to Denver, returning Sun, 18 Oct, priced at £517 found 1 day ago
Icelandair
Thu, 15 Oct - Sun, 18 Oct
KEF
Reykjavik
DEN
Denver
£517 Return, found 2 days ago
£517
Return
found 2 days ago
Select Icelandair flight, departing Thu, 15 Oct from Reykjavik to Denver, returning Sun, 18 Oct, priced at £517 found 2 days ago
Icelandair
Fri, 2 Oct - Wed, 7 Oct
KEF
Reykjavik
DEN
Denver
£518 Return, found 2 hours ago
£518
Return
found 2 hours ago
Select Icelandair flight, departing Fri, 2 Oct from Reykjavik to Denver, returning Wed, 7 Oct, priced at £518 found 2 hours ago
Icelandair
Thu, 12 Nov - Thu, 19 Nov
KEF
Reykjavik
DEN
Denver
£526 Return, found 2 days ago
£526
Return
found 2 days ago
Select Icelandair flight, departing Thu, 12 Nov from Reykjavik to Denver, returning Thu, 19 Nov, priced at £526 found 2 days ago
WestJet
Fri, 28 Aug - Mon, 7 Sept
KEF
Reykjavik
DEN
Denver
£710 Return, found 1 day ago
£710
Return
found 1 day ago
Select WestJet flight, departing Fri, 28 Aug from Reykjavik to Denver, returning Mon, 7 Sept, priced at £710 found 1 day ago
Finnair
Wed, 14 Oct - Wed, 21 Oct
KEF
Reykjavik
DEN
Denver
£773 Return, found 1 day ago
£773
Return
found 1 day ago
Select Finnair flight, departing Wed, 14 Oct from Reykjavik to Denver, returning Wed, 21 Oct, priced at £773 found 1 day ago
British Airways
Sun, 24 May - Tue, 2 Jun
KEF
Reykjavik
DEN
Denver
£888 Return, found 2 hours ago
£888
Return
found 2 hours ago
Select British Airways flight, departing Sun, 24 May from Reykjavik to Denver, returning Tue, 2 Jun, priced at £888 found 2 hours ago
Air Canada
Wed, 14 Oct - Wed, 21 Oct
KEF
Reykjavik
DEN
Denver
£916 Return, found 1 day ago
£916
Return
found 1 day ago
Select Air Canada flight, departing Wed, 14 Oct from Reykjavik to Denver, returning Wed, 21 Oct, priced at £916 found 1 day ago

Frequently asked questions

Which airlines fly direct from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
Enter KEF to DEN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) will differ from traveller to traveller. If you like to fly early, FI offers early morning flights. If price is the most important factor, FI typically offers the lowest fares. AC offers the most daily flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
There are approximately 2 nonstop flights per day from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.). For even more choice, look at flights that include layovers. You'll find around 16 connecting flights per day. Some common connection points include Pearson Intl. (YYZ), Seattle - Tacoma Intl. (SEA), and Frankfurt Intl. (FRA).
What is the earliest flight from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) typically departs at approximately 12:10 AM local time, operated by Austrian Airlines and Air Canada. This is a seasonal service active in May. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) on a Sunday, with around 24 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, Icelandair, and United Airlines. Sundays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) are between 9am and 12pm. About 55% of passengers prefer this time window. Many major carriers, including United Airlines, Delta and Air Canada, offer flights during this window. This timing works well because it allows for a morning departure, getting you to your destination with plenty of time left in the day.
How long does it take to fly from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
Flying nonstop from KEF to DEN takes around 8 hours 20 minutes, with the route covering approximately 3,559 miles. Flights with a layover typically take 10 hours 40 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
Select the "Business class" and "First class" filters when looking for KEF to DEN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Keflavik Intl. (KEF)?
If you're planning to travel to Denver from Keflavik Intl. (KEF), you can fly into Denver Intl. (DEN) Some flights may connect through major hubs like Frankfurt Intl. (FRA), Pierre Elliott Trudeau Intl. (YUL), Seattle - Tacoma Intl. (SEA) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Reykjavik (KEF-Keflavik Intl.) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Keflavik Intl.
Destination airport
Denver Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, British Airways, Finnair, Icelandair, KLM, Lufthansa, Virgin Atlantic, WestJet
Return price
£500
Distance
5693 km
Average flight time
2 hours 2 mins

Book with confidence

Compare flights from Reykjavik to Denver easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Reykjavik to Denver. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Keflavik Intl. to Denver Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Keflavik Intl. (KEF) to Denver Intl. (DEN)

The easiest way to view the best deals on flights from Reykjavik to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Keflavik Intl. to Denver Intl. start at just £500 and range up to £916.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Reykjavik and Denver
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Reykjavik to Denver flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Keflavik Intl. to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Reykjavik to Denver easily and book with confidence

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