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Iceland

$325+ Cheap flights from Denver (DEN) to Iceland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — KEF
Aug 11 — Aug 181
Tue 8/11
Tue 8/18
1 adult, Economy
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Cheap flight deals from Denver to Iceland

Cheapest flights from Denver to Iceland
Explore the most affordable flight options available from Denver to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:25 am
DEN
-
KEF
2 stops17h 05m
Virgin Atlantic
Sat 7/259:30 am
KEF
-
DEN
2 stops16h 31m
Virgin Atlantic
Deal found 7/10$339
This KLM deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:55 pm
DEN
-
KEF
1 stop27h 35m
KLM
Sat 7/1811:25 am
KEF
-
DEN
1 stop17h 20m
KLM
Deal found 7/10$340
This KLM deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:28 pm
DEN
-
KEF
2 stops30h 32m
KLM
Sat 9/1211:25 am
KEF
-
DEN
1 stop17h 10m
KLM
Deal found 7/9$344
This Mytrip deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:35 am
DEN
-
KEF
1 stop15h 10m
Air Canada
Tue 10/1310:00 am
KEF
-
DEN
1 stop30h 22m
Air Canada
Deal found 7/8$407
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:25 am
DEN
-
KEF
1 stop14h 30m
United Airlines
Fri 10/99:15 am
KEF
-
DEN
2 stops39h 10m
United Airlines
Deal found 7/8$410
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:40 pm
DEN
-
KEF
1 stop10h 10m
United Airlines
Fri 10/239:15 am
KEF
-
DEN
2 stops35h 00m
United Airlines
Deal found 7/8$411
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:29 pm
DEN
-
KEF
1 stop30h 21m
United Airlines
Fri 10/169:15 am
KEF
-
DEN
1 stop31h 16m
United Airlines
Deal found 7/8$412
This Flightnetwork deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:05 pm
DEN
-
KEF
1 stop32h 40m
Air Canada
Fri 8/289:15 am
KEF
-
DEN
1 stop15h 40m
Air Canada
Deal found 7/9$415
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:10 pm
DEN
-
KEF
1 stop31h 40m
United Airlines
Mon 10/1910:00 am
KEF
-
DEN
1 stop32h 23m
United Airlines
Deal found 7/8$416
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:10 pm
DEN
-
KEF
1 stop31h 40m
United Airlines
Tue 10/2010:00 am
KEF
-
DEN
1 stop32h 23m
United Airlines
Deal found 7/10$417

Find flight deals from Denver to Iceland

Keep the following information in mind while searching for Denver to Iceland flight deals. Data was last updated July 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(Virgin Atlantic)

One-way from

$325
(Trip.com)

Popular in

August

Cheapest in

February

Average price

$628

Good round-trip deal

$691 or less

Good one-way deal

$300 or less
Provider with most accurate pricing for Denver Intl-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Reykjavik (REK) flights.
Search Deals
From Denver Intl to Iceland
Search Deals
One-way flight from Denver Intl to Iceland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to Iceland.
Search Deals
Price to beat on a one-way flight from Denver Intl to Iceland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Iceland 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, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
Use the filters below to find and compare flights from Denver to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 8/24

6:05 am-9:30 am

2 stops21h 25m

Reykjavik Keflavik Intl

Mon 8/31

9:30 am-7:51 pm

1 stop16h 21m

$339

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 9/21

10:28 am-9:30 am

2 stops17h 02m

Reykjavik Keflavik Intl

Tue 9/29

11:25 am-9:07 pm

2 stops15h 42m

$339

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 7/25

9:19 am-7:40 am

2 stops16h 21m

Reykjavik Keflavik Intl

Wed 7/29

8:45 am-5:56 pm

2 stops15h 11m

$339
Quickest round-trip

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 7/24

11:08 am-7:00 am

1 stop13h 52m

Reykjavik Keflavik Intl

Sat 8/1

9:30 am-8:01 pm

2 stops16h 31m

$339

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Fri 9/25

6:10 pm-7:55 am

2 stops31h 45m

Reykjavik Keflavik Intl

Fri 10/2

9:15 am-2:15 pm

2 stops35h 00m

$414

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Tue 10/6

11:25 am-7:55 am

1 stop14h 30m

Reykjavik Keflavik Intl

Tue 10/20

10:00 am-3:17 pm

2 stops35h 17m

$414

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sun 7/26

9:05 pm-8:50 am

1 stop29h 45m

Reykjavik Keflavik Intl

Tue 8/4

9:15 am-10:33 am

1 stop31h 18m

$425

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 8/1

7:10 pm-8:50 am

1 stop31h 40m

Reykjavik Keflavik Intl

Tue 8/11

9:15 am-10:33 am

1 stop31h 18m

$425

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Sat 10/10

6:00 am-7:55 am

2 stops19h 55m

Reykjavik Keflavik Intl

Wed 10/14

9:15 am-6:46 pm

1 stop15h 31m

$427

DenverReykjavik

DEN - KEF

DENKEF

Denver Intl

Mon 10/12

11:35 am-8:45 am

1 stop15h 10m

Reykjavik Keflavik Intl

Fri 10/16

9:15 am-10:31 am

1 stop31h 16m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Denver to Iceland

Have a flexible travel schedule? Discover the best time to fly to Iceland from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Iceland

What is the cheapest month to book a flight from Denver to Iceland?

Currently, July is the cheapest month in which you can book a flight from Denver to Iceland (average of $334). Flying from Denver to Iceland in September is currently the most expensive (average of $448). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to IS?

Find hourly flight availability from Denver to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 12, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Iceland as you normally would.

Weekly flight availability from Denver to Iceland

Explore weekly flight availability from Denver to Iceland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 12, 2026.

The most flights from DEN to IS0 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How far ahead should I book a flight from Denver to Iceland?

Booking 2 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Iceland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Iceland

Get insights into the airlines that provide service to Iceland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iceland. Reviews last updated July 12, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andIcelandair from Denver to Iceland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,459 reviews

Food

7.2

Overall

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,459 reviews
Delta
7.8
Good
8,459 reviews

Food

7.2

Overall

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,983 reviews
Delta
7.8
Good
8,459 reviews

Food

7.2

Overall

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Icelandair
7.0
Good
704 reviews
Delta
7.8
Good
8,459 reviews

Food

7.2

Overall

7.8

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Denver to Iceland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Iceland?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Iceland. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How long is the flight from Denver to Iceland?

    For as low as $339, Delta can have you in Iceland from Denver in 21h 25m. Denver and Iceland are separated by a distance of 3556 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Denver to Iceland?

    The cheapest flight price from Denver to Iceland is $243. On average you can expect to pay $1,570. The most popular route, (Denver Intl - Reykjavik Keflavik Intl), can usually be booked for $321.

  • Can I find deals for flights from Denver to Iceland that include hotel bookings?

    Yes. In addition to deals on Denver to Iceland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Iceland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Iceland.

  • Can I find deals for business class flights from Denver to Iceland?

    Yes. Cheapflights offers flight deals from Denver to Iceland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Iceland?

    Currently, July is the cheapest month in which you can book a flight from Denver to Iceland (average of $334). Flying from Denver to Iceland in September is currently the most expensive (average of $448). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Denver to Iceland

Discover the top airline that operate flights from Denver to Iceland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$432Average$626FlexibilityNo cancel feeOn-time76%

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