DEN - KEF

$314 Find Cheap Flights from Denver to Reykjavik - Compare and Save

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 9/1. 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

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Everything you should know

Cheapest round-trip
$576
Typical prices: $604-$778
Icelandair
Sun 7/12Tue 7/21
DEN - KEF • Non-stop
Cheapest one-way
$314
Typical prices: $442-$657
WestJet
Tue 9/1
DEN - KEF • 1 stop
Top airlines
Cheapest • from $576 (round-trip)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Icelandair. Average duration is 7h 17m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $431 (round-trip)
Shortest trip • 10h 10m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
Good to know
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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

Sun, Jul 12 - Tue, Jul 21
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$576Icelandair
Sun, Oct 4 - Mon, Oct 12
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$579Icelandair
Sun, Jul 19 - Fri, Jul 24
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$581Icelandair
Thu, Jul 30 - Thu, Aug 6
Icelandair Logo
8:10 pm - 9:25 am
DEN
-
KEF
7h 15mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$586Icelandair
Wed, Sep 30 - Tue, Oct 13
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$588Icelandair
Sun, Sep 27 - Mon, Oct 5
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$589Icelandair
Wed, Sep 30 - Mon, Oct 12
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$590Icelandair
Sat, Jul 25 - Thu, Jul 30
Icelandair Logo
8:10 pm - 9:25 am
DEN
-
KEF
7h 15mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$592Icelandair
Fri, Sep 25 - Fri, Oct 2
Delta Logo
8:45 am - 7:00 am
DEN
-
KEF
16h 15m
1 stop
Delta Logo
11:25 am - 10:35 pm
KEF
-
DEN
17h 10m
1 stop
$596Delta
Sun, Jul 19 - Wed, Jul 29
Icelandair Logo
8:10 pm - 9:25 am
DEN
-
KEF
7h 15mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$601Icelandair
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.

How much is a round-trip flight from Denver to Reykjavik Keflavik Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Reykjavik Keflavik Intl Airport departing in July.

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 January, where tickets cost $520 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $703 and $682 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $625 on average.

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 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$314
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 4% 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 5 days, the lowest price for a flight from Denver to Reykjavik Keflavik Intl Airport was $314 for a one-way ticket and $576 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, and SWISS offer inflight Wi-Fi service on the Denver to Reykjavik flight route.

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

    The Boeing 787-9 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 $300 or less one-way and $691 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 702 reviews
6.9Entertainment
6.2Food
6.9Comfort
7.2Boarding
8.0Crew
Airline reviews

Crew was very friendly. Need lay flat beds! More snacks

8.0 ExcellentGareth, Jun 2026
DEN - KEF
Read more Icelandair reviews

Crew was very friendly. Need lay flat beds! More snacks

Good. Rxception is the Entertainment - movies and TV shows all out of date…

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

It was too cold in the plane my feet froze

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

Information on your arrival and departure airports