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Cheap flights from Denver to Reykjavik from $231

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Reykjavik departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Denver to Reykjavik

Cheap round-trip flights

Icelandair Logo
3:40 pm - 6:05 amDEN-KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pmKEF-DEN
8h 10mnonstop
$411Icelandair
Find Deal
Fri, Nov 14 - Wed, Nov 19
Icelandair Logo
4:40 pm - 6:05 amDEN-KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pmKEF-DEN
8h 10mnonstop
$433Icelandair
Find Deal
Thu, Oct 30 - Thu, Nov 6
Icelandair Logo
4:40 pm - 6:05 amDEN-KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pmKEF-DEN
8h 10mnonstop
$435Icelandair
Find Deal
Fri, Oct 31 - Fri, Nov 7
Icelandair Logo
3:40 pm - 6:05 amDEN-KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pmKEF-DEN
8h 10mnonstop
$436Icelandair
Find Deal
Wed, Jan 21 - Tue, Jan 27
Icelandair Logo
3:40 pm - 6:05 amDEN-KEF
7h 25mnonstop
Icelandair Logo
4:55 pm - 6:05 pmKEF-DEN
8h 10mnonstop
$437Icelandair
Find Deal
Sun, Nov 2 - Thu, Nov 13
Multiple Airlines Logo
6:38 am - 4:55 amDEN-KEF
16h 17m1 stop
Multiple Airlines Logo
3:05 pm - 9:08 amKEF-DEN
24h 03m1 stop
$443Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
6:38 am - 4:55 amDEN-KEF
16h 17m1 stop
Multiple Airlines Logo
3:05 pm - 8:12 amKEF-DEN
47h 07m2 stops
$448Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Lufthansa Logo
4:05 pm - 2:20 pmDEN-KEF
39h 15m2 stops
Lufthansa Logo
3:25 pm - 4:00 pmKEF-DEN
31h 35m1 stop
$596Lufthansa
Find Deal
Fri, Nov 14 - Fri, Nov 21
Lufthansa Logo
5:58 pm - 11:35 pmDEN-KEF
23h 37m2 stops
Lufthansa Logo
3:20 pm - 4:00 pmKEF-DEN
31h 40m1 stop
$600Lufthansa
Find Deal
Tue, Oct 7 - Tue, Mar 3
Finnair Logo
5:25 pm - 9:15 amDEN-KEF
32h 50m2 stops
Finnair Logo
10:00 am - 5:41 pmKEF-DEN
38h 41m2 stops
$618Finnair
Find Deal
Mon, Jan 12 - Mon, Jan 19

Icelandair flights from Denver to Reykjavik Keflavik Intl Airport

Our best Icelandair deals on Denver to Reykjavik Keflavik Intl Airport flight tickets
Icelandair
Nov 14
DEN3:40 pmDenver Intl
7h 25m
KEF6:05 amReykjavik Keflavik Intl
Nov 19
KEF4:55 pmReykjavik Keflavik Intl
8h 10m
DEN6:05 pmDenver Intl
$411
Find similar
Icelandair
Oct 30
DEN4:40 pmDenver Intl
7h 25m
KEF6:05 amReykjavik Keflavik Intl
Nov 6
KEF4:55 pmReykjavik Keflavik Intl
8h 10m
DEN6:05 pmDenver Intl
$433
Find similar
Icelandair
Oct 31
DEN4:40 pmDenver Intl
7h 25m
KEF6:05 amReykjavik Keflavik Intl
Nov 7
KEF4:55 pmReykjavik Keflavik Intl
8h 10m
DEN6:05 pmDenver Intl
$435
Find similar

Lufthansa flights from Denver to Reykjavik Keflavik Intl Airport

Our best Lufthansa deals on Denver to Reykjavik Keflavik Intl Airport flight tickets
Lufthansa
Nov 14
DEN4:05 pmDenver Intl
39h 15m
2 stops
KEF2:20 pmReykjavik Keflavik Intl
Nov 21
KEF3:25 pmReykjavik Keflavik Intl
31h 35m
1 stop
DEN4:00 pmDenver Intl
$596
Find similar
Lufthansa
Oct 7
DEN5:58 pmDenver Intl
23h 37m
2 stops
KEF11:35 pmReykjavik Keflavik Intl
Mar 3
KEF3:20 pmReykjavik Keflavik Intl
31h 40m
1 stop
DEN4:00 pmDenver Intl
$600
Find similar
Lufthansa
Dec 3
DEN4:20 pmDenver Intl
14h 55m
1 stop
KEF2:15 pmReykjavik Keflavik Intl
Dec 9
KEF3:20 pmReykjavik Keflavik Intl
31h 40m
1 stop
DEN4:00 pmDenver Intl
$619
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Reykjavik Keflavik Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Denver to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 11/14

3:40 pm-6:05 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Wed 11/19

4:55 pm-6:05 pm

Nonstop8h 10m

$411

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Thu 10/30

4:40 pm-6:05 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Thu 11/6

4:55 pm-6:05 pm

Nonstop8h 10m

$433

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 10/31

4:40 pm-6:05 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Fri 11/7

4:55 pm-6:05 pm

Nonstop8h 10m

$435

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 1/21

3:40 pm-6:05 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Tue 1/27

4:55 pm-6:05 pm

Nonstop8h 10m

$436

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sun 11/2

3:40 pm-6:05 am

Nonstop7h 25m

Reykjavik Keflavik Intl

Thu 11/13

4:55 pm-6:05 pm

Nonstop8h 10m

$437

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 10/15

6:38 am-4:55 am

1 stop16h 17m

Reykjavik Keflavik Intl

Wed 10/22

3:05 pm-9:08 am

1 stop24h 03m

$443

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Wed 10/15

6:38 am-4:55 am

1 stop16h 17m

Reykjavik Keflavik Intl

Wed 10/22

3:05 pm-8:12 am

2 stops47h 07m

$448

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 11/14

4:05 pm-2:20 pm

2 stops39h 15m

Reykjavik Keflavik Intl

Fri 11/21

3:25 pm-4:00 pm

1 stop31h 35m

$596

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Tue 10/7

5:58 pm-11:35 pm

2 stops23h 37m

Reykjavik Keflavik Intl

Tue 3/3

3:20 pm-4:00 pm

1 stop31h 40m

$600

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 1/12

5:25 pm-9:15 am

2 stops32h 50m

Reykjavik Keflavik Intl

Mon 1/19

10:00 am-5:41 pm

2 stops38h 41m

$618

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Reykjavik from

How to get the cheapest flight ticket from Denver to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of October is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from Denver, with most prices found around $562. If you’re not able to fly to Reykjavik Keflavik Intl Airport in October, then February is your next best option. Flight prices from Denver to Reykjavik Keflavik Intl Airport during February average around $563.

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from Denver to Reykjavik Keflavik Intl Airport is on a Wednesday when prices can be found for as low as $587. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Saturday, with ticket prices averaging around $658.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the afternoon when flights can be purchased for as low as $594. Flights at noon are often more expensive with an average ticket price of $762.

What is the cheapest Denver Intl to Reykjavik Keflavik Intl flight route?

Fly from Denver Intl to Reykjavik Keflavik Intl for the best Denver Intl - Reykjavik Keflavik Intl flight prices

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

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $630 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from Denver for as low as $561 on momondo.

What cabin class options are available on Denver Intl to Reykjavik Keflavik Intl flights?

There are 3 cabin classes available to choose from on Denver Intl to Reykjavik Keflavik Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Denver to Reykjavik Keflavik Intl Airport flights?

You could potentially save up to 7% on your flight if you consider stops on a Denver to Reykjavik Keflavik Intl Airport flight.

How have Denver to Reykjavik Keflavik Intl Airport flight prices changed over time?

As of September 2025, prices for Denver to Reykjavik Keflavik Intl Airport flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Reykjavik Keflavik Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Reykjavik Keflavik Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Reykjavik Keflavik Intl Airport (DEN to KEF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Reykjavik Keflavik Intl Airport

Best Price Found

$388

Fastest flight time

6h 20m

Direct flights

Every day
The best one-way flight to Reykjavik Keflavik Intl Airport from Denver in the past 72 hours is $388. The best round-trip flight deal from Denver to Reykjavik Keflavik Intl Airport found on momondo in the last 72 hours is $468.
The fastest flight from Denver to Reykjavik Keflavik Intl Airport takes 6h 20m
Direct flights go from Denver to Reykjavik Keflavik Intl Airport every day.
Search flight deals

  • How far is Denver Intl to Reykjavik Keflavik Intl by plane?

    Reykjavik Keflavik Intl is 3572.3 mi away from Denver Intl. 6h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Denver Intl Airport to Reykjavik Keflavik Intl Airport?

    Prices for flights from Denver Intl Airport to Reykjavik Keflavik Intl Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from Denver Intl Airport to Reykjavik Keflavik Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The travel and health documents required for your trip to Reykjavik Keflavik Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Reykjavik Keflavik Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Denver to Reykjavik Keflavik Intl Airport?

  • What is the most popular airline from Denver to Reykjavik Keflavik Intl Airport?

Best airlines flying from Denver to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from Denver to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $451Free CancellationRating
7.0
545 reviews
Search Icelandair flights
United AirlinesPriceFrom $523Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • Icelandair Flights From Denver to Reykjavik Keflavik Intl Airport

    Across 7 Icelandair flights from Denver to Reykjavik Keflavik Intl Airport this week, the average price was $629, with the best Icelandair deals starting from $451 round-trip. 545 users have rated Icelandair on momondo, with an average score of 7.0/10.

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hveragerdi
Hella
Borgarnes
Kopavogur
Grindavik

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Reykjavik?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Reykjavik. momondo saves you time and could save you money on your trip.

Can I find flights from Denver to Reykjavik with flexible booking policies on momondo?

Flights from Denver to Reykjavik with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Denver to Reykjavik?

Once all potential Denver to Reykjavik flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Denver to Reykjavik right now. Can momondo alert me if prices change?

Price alerts on flights to Reykjavik from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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