DEN - KEF

$380 Find Cheap Flights from Denver to Reykjavik

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Reykjavik departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik Keflavik Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Reykjavik, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$512
Overall average: $564
Icelandair
Mon 4/6Thu 4/16
DEN - KEF • Non-stop
Cheapest non-stop
$530
Typical prices: $616-$677
Icelandair
Wed 1/21Tue 1/27
DEN - KEF • Non-stop
When to book
7 weeks
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 15% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reykjavik!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Reykjavik (DEN-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Reykjavik

Mon, Apr 6 - Thu, Apr 16
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$512Icelandair
Wed, Jan 21 - Tue, Jan 27
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$530Icelandair
Mon, Feb 16 - Wed, Mar 4
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$547Icelandair
Sat, Feb 21 - Sun, Mar 1
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$552Icelandair
Wed, Jan 21 - Sun, Jan 25
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$557Icelandair
Wed, Jan 21 - Tue, Jan 27
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$558Icelandair
Sun, Feb 1 - Sat, Feb 7
Multiple Airlines Logo
9:10 am - 6:15 am
DEN
-
KEF
14h 05m1 stop
Multiple Airlines Logo
5:00 pm - 11:35 pm
KEF
-
DEN
13h 35m1 stop
$561Multiple Airlines
Mon, Feb 16 - Fri, Feb 20
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$564Icelandair
Wed, Feb 11 - Mon, Feb 23
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$570Icelandair
Thu, May 7 - Wed, May 27
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
10:30 am - 12:25 pm
KEF
-
DEN
7h 55mnonstop
$572Icelandair
Booking Insights

KAYAK's insights & trends for Denver to Reykjavik flights

Get data-powered insights and trends into flights from Denver to Reykjavik to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Denver to Reykjavik Keflavik Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Reykjavik Keflavik Intl Airport is October, where tickets cost $550 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $1,005 and $687 respectively.

Can I save money by flying with a layover from Denver to Reykjavik Keflavik Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $588, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Denver to Reykjavik Keflavik Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Reykjavik Keflavik Intl Airport, you should book around 7 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$380
Best time to beat the crowds but there is an average 54% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Denver to Reykjavik

When to book flights from Denver to Reykjavik

Are your dates flexible? Find out the best times to travel from Denver to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Reykjavik flights

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

    In the last 3 days, the lowest price for a flight from Denver to Reykjavik Keflavik Intl Airport was $380 for a one-way ticket and $512 for a round-trip.

  • Do I need a passport to fly between Denver and Reykjavik?

    Yes, you’ll need a passport to travel to Reykjavik from Denver.

  • Which airports will I be using when flying from Denver to Reykjavik?

    On your way to Reykjavik, you’ll fly out from Denver Intl. You’ll be landing at Reykjavik Keflavik Intl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Reykjavik?

    Lufthansa, United Airlines, Finnair, and American Airlines offer inflight Wi-Fi service on the Denver to Reykjavik flight route.

  • Which aircraft models fly most regularly from Denver to Reykjavik?

    The Boeing 787 Dreamliner is the aircraft model that flies most regularly on the Denver to Reykjavik flight route.

  • On which days can I fly direct from Denver to Reykjavik?

    There are nonstop flights from Denver to Reykjavik on a daily basis.

  • How does KAYAK find such low prices on flights from Denver to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik with an airline and back to Denver with another airline. Booking your flights between Denver and KEF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $393 or less one-way and $460 or less round-trip.

Prefer to fly direct from Denver to Reykjavik?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Reykjavik Keflavik Intl.
Find which airlines fly direct from Denver Intl Airport to Reykjavik Keflavik Intl Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Reykjavik Keflavik Intl

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Direct returns

Reykjavik Keflavik Intl to Denver Intl

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Reviews of the top airline flying from Denver to Reykjavik

 
See real verified KAYAK customer reviews for airlines flying from Denver to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Reykjavik? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IcelandairOverall score based on 586 reviews
6.2Food
7.0Entertainment
7.2Boarding
6.9Comfort
8.0Crew
Airline reviews

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

2.0 MediocrePei, Nov 2025
CDG - KEF
Read more Icelandair reviews

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Everything you need to know for your flight from Denver to Reykjavik

Information on your arrival and departure airports