KEF - DEN

$465 Find Cheap Flights from Reykjavik to Denver - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$625
Typical prices: $636-$947
Icelandair
Mon 10/22Sun 10/28
KEF - DEN • Non-stop
Cheapest one-way
$465
Typical prices: $511-$737
Multiple Airlines
Fri 10/26
KEF - DEN • 3 stops
Nonstop flights
You can fly direct with Icelandair. Average duration is 8h 07m
Direct flights
+1
Direct flights
+1
When to travel
Cheapest • 21% price drop
Most popular
Good to know
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Good to know
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Flight Deals

Cheap Flights from Reykjavik to Denver (KEF-DEN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reykjavik to Denver

Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$625Icelandair
Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$647Icelandair
Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$651Icelandair
Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$655Icelandair
Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$658Icelandair
Thu, Oct 22 - Wed, Oct 28
Icelandair Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Icelandair Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$660Icelandair
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Multiple Airlines Logo
7:07 am - 6:15 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
17h 08m1 stop Seattle/Tacoma Intl
$766Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Multiple Airlines Logo
7:07 am - 6:15 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
17h 08m1 stop Seattle/Tacoma Intl
$768Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
5:10 pm - 11:42 amKEF  Reykjavik Keflavik Intl-DEN Denver Intl
24h 32m1 stop Boston Logan Intl
Multiple Airlines Logo
4:40 pm - 6:05 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
7h 25mnonstop
$786Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
4:50 pm - 7:00 pmKEF  Reykjavik Keflavik Intl-DEN Denver Intl
8h 10mnonstop
Multiple Airlines Logo
7:07 am - 6:15 amDEN  Denver Intl-KEF Reykjavik Keflavik Intl
17h 08m1 stop Seattle/Tacoma Intl
$796Multiple Airlines
Booking Insights

Price, demand and travel trends for Reykjavik Keflavik Intl Airport to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Reykjavik Keflavik Intl Airport to Denver with more confidence.

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

Round-trip flights from Reykjavik Keflavik Intl Airport to Denver start at $625. Prices are below average for this route right now, with typical round-trip fares ranging from $636 to $947. The lowest price found in the past 5 days was $625 on Icelandair.

What's the cheapest day of the week to fly from Reykjavik Keflavik Intl Airport to Denver?

Sunday is the cheapest day of the week to fly from Reykjavik Keflavik Intl Airport to Denver, it is 6% cheaper than the average day. Monday is the most expensive day with flight prices 116% higher than average. Based on deals found by KAYAK users in the last 12 months.

Key details for Reykjavik Keflavik Intl Airport to Denver flights

Low season

March

Cheapest flight

$465
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly with an average 19% increase in price.
Flight from Reykjavik Keflavik Intl Airport to Denver

When to book flights from Reykjavik to Denver

Are your dates flexible? Find out the best times to travel from Reykjavik to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Reykjavik to Denver: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Reykjavik to Denver 
Chin KeongFlew with Icelandair-Aug 2026
Avoid 3A. Bring your own device and charge them fully because the charging ports don’t work.
AidanFlew with Icelandair-Mar 2026
Passport control is a fair way past security check and can be busy don’t delay getting through passport control

Your Reykjavik Keflavik Intl Airport to Denver flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on Reykjavik Keflavik Intl Airport to Denver flights?

    Among airlines operating Reykjavik Keflavik Intl Airport to Denver flights:

    • Icelandair: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Reykjavik Keflavik Intl Airport to Denver?

    Only Icelandair operates flights between Reykjavik Keflavik Intl Airport and Denver.

  • Which airports can I use when flying from Reykjavik Keflavik Intl Airport to Denver?

    Flights from Reykjavik Keflavik Intl Airport to Denver usually depart from Reykjavik Keflavik Intl (KEF) and arrive at Denver Intl (DEN).

  • Which airlines include bags at no extra cost on Reykjavik Keflavik Intl Airport to Denver flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Icelandair: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Reykjavik Keflavik Intl Airport to Denver?

    Three cabin classes are available on flights from Reykjavik Keflavik Intl Airport to Denver:

    • Economy Class
    • Business Class
    • First Class

  • What is the standard checked-bag allowance on flights from Reykjavik Keflavik Intl Airport to Denver?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $69–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Reykjavik Keflavik Intl Airport to Denver?

    The Boeing 757-200 (winglets) family is used most often on this route, operated mainly by Icelandair. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • Can I save money by using flexible dates for flights from Reykjavik Keflavik Intl Airport to Denver?

    On the Reykjavik Keflavik Intl Airport to Denver route, being flexible with your departure day can save you up to 57%. Sunday is the cheapest day at $616 round-trip on average, while Monday is the most expensive at $1,409: a $793 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How are flight departures from Reykjavik Keflavik Intl Airport to Denver spread across the day?

    Afternoon is the busiest departure period on Reykjavik Keflavik Intl Airport to Denver flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Union Station Denver and Coors Field. These are among the most viewed places in Denver on KAYAK.

  • What are the earliest and latest flights from Reykjavik Keflavik Intl Airport to Denver?

    These are the earliest and latest flight times available from Reykjavik Keflavik Intl Airport to Denver:

    • Earliest: departs at 10:45 am and lands at 6:52 pm
    • Latest: departs at 4:55 pm and lands at 1:02 am.

    The flight takes about 8h 07m.

  • How long is a flight from Reykjavik Keflavik Intl Airport to Denver?

    A nonstop flight from Reykjavik Keflavik Intl Airport to Denver takes 8h 07m, covering 3,556 miles.

  • Do I need a passport to fly from Reykjavik Keflavik Intl Airport to Denver?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Reykjavik Keflavik Intl Airport to Denver looking right now?

    One-way fares from Reykjavik Keflavik Intl Airport to Denver are currently lower than usual. Average one-way flight prices are about $539, which is 8% below the typical average for this route.

  • What is the time difference between Reykjavik Keflavik Intl Airport and Denver?

    Denver is 6 hours behind Reykjavik Keflavik Intl Airport (Mountain Time vs Greenwich Mean Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:
    · Routes Car & Truck Rentals
    · Ace
    · NU Car
    · Europcar
    · Hertz

  • How much should I expect to pay for a Reykjavik Keflavik Intl Airport to Denver flight?

    Round-trip flights from Reykjavik Keflavik Intl Airport to Denver range from $636 to $947, with an average of $651 over the past 12 months. Anything below $636 counts as a good deal.

Your guide to booking Reykjavik Keflavik Intl Airport to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average $616 - about $793 less than Monday (56% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Reykjavik Keflavik Intl Airport to Denver trip for May. Fares historically average $511 round-trip in that month - typically $898 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.
    - The Westin Denver International Airport

Prefer to fly direct from Reykjavik to Denver?

 
Find which airlines fly direct from Reykjavik Keflavik Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

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

Information on your arrival and departure airports