DEN - REK

$368 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 4/23. 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

 
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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Everything you should know

Cheapest round-trip
$519
Overall average: $589
Icelandair
Mon 2/23Wed 3/4
DEN - KEF • Non-stop
Cheapest one-way
$368
Typical prices: $409-$414
Multiple Airlines
Thu 4/23
DEN - KEF • 3 stops
Top airlines
Icelandair
Cheapest • from $536 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DEN
-
KEF
Cheapest
DEN
-
KEF
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 9% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
5 days a week
There are direct flights from Denver to Reykjavik 5 days a week: Mon, Tue, Thu, Fri, Sat.
Direct flights
Direct flights
Direct flights
Direct flights
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-REK)

 
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, Feb 23 - 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
$519Icelandair
Mon, Apr 6 - Mon, Apr 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
$540Icelandair
Mon, Jun 15 - Mon, Jun 22
Icelandair Logo
8:10 pm - 9:25 am
DEN
-
KEF
7h 15mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$541Icelandair
Mon, Feb 23 - Fri, Mar 6
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pm
KEF
-
DEN
8h 10mnonstop
$543Icelandair
Thu, Apr 2 - Sun, Apr 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
$544Icelandair
Sun, Jun 14 - Sat, Jun 20
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$546Icelandair
Mon, Feb 23 - Wed, Mar 11
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 7:05 pm
KEF
-
DEN
8h 10mnonstop
$548Icelandair
Sat, Jul 11 - Tue, Jul 28
Icelandair Logo
8:10 pm - 9:25 am
DEN
-
KEF
7h 15mnonstop
Icelandair Logo
10:45 am - 12:40 pm
KEF
-
DEN
7h 55mnonstop
$555Icelandair
Mon, Feb 23 - Thu, Mar 12
Icelandair Logo
3:40 pm - 6:05 am
DEN
-
KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 7:05 pm
KEF
-
DEN
8h 10mnonstop
$557Icelandair
Thu, Apr 2 - Fri, Apr 10
Icelandair Logo
4:40 pm - 6:00 am
DEN
-
KEF
7h 20mnonstop
Icelandair Logo
4:50 pm - 7:00 pm
KEF
-
DEN
8h 10mnonstop
$559Icelandair
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 Denver to Reykjavik flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Denver to Reykjavik costs $394 on the route between Denver (DEN) and Reykjavik Keflavik Intl Airport (KEF). It is also the most popular route.

What is the cheapest month to fly from Denver to Reykjavik?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Reykjavik, 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 is February, where tickets cost $564 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $685 and $675 respectively.

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

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 $622 on average.

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

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, 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, you should book around 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$368
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Denver to Reykjavik-Keflavik Airport

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 flights from Denver to Reykjavik

  • What is the cheapest flight from Denver to Reykjavik?

    In the last 3 days, the lowest price for a flight from Denver to Reykjavik was $368 for a one-way ticket and $536 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?

    Denver is served by only 1 airport and there are 2 airports in Reykjavik. You will leave Denver from Denver Intl and you will be arriving in Reykjavik at one of these airports: Reykjavik Keflavik Intl or Reykjavik Domestic.

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

    Lufthansa, and United 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.

  • Which is the best airline for flights from Denver to Reykjavik, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Reykjavik are Delta and United Airlines. With an average price for the route of $920 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $973 and an overall rating of 7.4.

  • 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.

  • 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

  • Looking for a cheap flight? 25% of our users found flights on this route for $301 or less one-way and $475 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.
Find which airlines fly direct from Denver Intl Airport to Reykjavik, which days they fly and book direct flights.

Direct departures

Denver Intl to Reykjavik

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

See more direct flights

Direct returns

Reykjavik to Denver Intl

Monday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Reviews of the top 3 airlines serving 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.
7.9
DeltaOverall score based on 8166 reviews
7.8Entertainment
7.9Comfort
7.2Food
8.1Boarding
8.5Crew
Airline reviews

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

2.0 MediocreKeenan, Feb 2026
GEG - SEA
Read more Delta reviews

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

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

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

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

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.

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

Information on your arrival and departure airports