$503+ Cheap flights from Keflavik Intl (KEF) to Denver (DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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Find cheap flights from Keflavik Intl to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Keflavik Intl to Denver
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One-way
Cheapest flights from Keflavik Intl to DenverExplore the most affordable flight options available from Keflavik Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
Explore the most affordable flight options available from Keflavik Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2026.
This Travelis deal was found by Cheapflights users on 9/22. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Fri 11/133:40 pm -
Nonstop7h 25m
Deal found 9/22![Icelandair logo]()
$638
This Gotogate deal was found by Cheapflights users on 9/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:55 pm -
Nonstop8h 05m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/20![Icelandair logo]()
$658
This Gotogate deal was found by Cheapflights users on 9/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/18![Icelandair logo]()
$661
This Booking.com deal was found by Cheapflights users on 9/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Thu 11/123:40 pm -
Nonstop7h 25m
Deal found 9/21![Icelandair logo]()
$668
This Icelandair deal was found by Cheapflights users on 9/18. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Wed 11/111:15 pm -
1 stop10h 15m
Deal found 9/18![Multiple Airlines logo]()
$808
Best flights from Keflavik Intl to DenverDiscover carefully curated flight deals from Keflavik Intl to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
Discover carefully curated flight deals from Keflavik Intl to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 22, 2026.
This Gotogate deal was found by Cheapflights users on 9/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:55 pm -
Nonstop8h 05m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/20![Icelandair logo]()
$658
This Icelandair deal was found by Cheapflights users on 9/18. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Wed 11/111:15 pm -
1 stop10h 15m
Deal found 9/18![Multiple Airlines logo]()
$808
This Gotogate deal was found by Cheapflights users on 9/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/18![Icelandair logo]()
$661
This Booking.com deal was found by Cheapflights users on 9/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Thu 11/123:40 pm -
Nonstop7h 25m
Deal found 9/21![Icelandair logo]()
$668
This Icelandair deal was found by Cheapflights users on 9/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:55 pm -
Nonstop8h 05m
Thu 11/1210:30 am -
2 stops13h 00m
Deal found 9/21![Multiple Airlines logo]()
$847
This Icelandair deal was found by Cheapflights users on 9/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:55 pm -
Nonstop8h 05m
Fri 11/1310:30 am -
2 stops13h 00m
Deal found 9/22![Multiple Airlines logo]()
$851
This Icelandair deal was found by Cheapflights users on 9/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/244:55 pm -
Nonstop8h 05m
Sat 1/307:00 am -
1 stop16h 15m
Deal found 9/22![Icelandair logo]()
$889
Last-minute flights from Keflavik Intl to DenverDiscover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 22, 2026 and is based on user searches.
This Virgin Atlantic deal was found by Cheapflights users on 9/20. 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.
Wed 9/2311:25 am -
2 stops16h 07m
Tue 9/293:58 pm -
1 stop9h 02m
Deal found 9/20![Virgin Atlantic logo]()
$1,216
This Trip.com deal was found by Cheapflights users on 9/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:45 pm -
1 stop32h 52m
Fri 10/235:57 pm -
1 stop30h 18m
Deal found 9/18![Multiple Airlines logo]()
$880
This Priceline deal was found by Cheapflights users on 9/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:15 pm -
2 stops35h 37m
Fri 10/232:29 pm -
2 stops36h 46m
Deal found 9/18![Finnair logo]()
$1,171
This Icelandair deal was found by Cheapflights users on 9/19. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:50 pm -
1 stop18h 30m
Tue 10/274:40 pm -
Nonstop7h 25m
Deal found 9/19![Multiple Airlines logo]()
$853
This Gotogate deal was found by Cheapflights users on 9/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:50 pm -
Nonstop8h 10m
Tue 10/274:40 pm -
Nonstop7h 25m
Deal found 9/19![Icelandair logo]()
$860
One-way flights from Keflavik Intl to DenverSearch for one-way flight options from Keflavik Intl to Denver. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
Search for one-way flight options from Keflavik Intl to Denver. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This oojo deal was found by Cheapflights users on 9/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Icelandair logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:20 pm -
3 stops46h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/84:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Icelandair logo]()
$526
This oojo deal was found by Cheapflights users on 9/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/194:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Icelandair logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/74:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Icelandair logo]()
$564
This Mytrip deal was found by Cheapflights users on 9/20. 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.
Tue 10/205:00 pm -
2 stops21h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/58:25 pm -
3 stops56h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/14:45 pm -
1 stop21h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$586
Find flight deals from Keflavik Intl to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $658 (Gotogate) |
One-way from | $503 (oojo) |
Good one-way deal | $533 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Keflavik Intl to Denver 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 7,457,451 searches. Data last updated September 22, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Mon 11/16
5:00 pm-8:22 am
2 stops22h 22m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$559
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 10/20
5:00 pm-8:06 am
2 stops21h 06m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$567
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Fri 1/1
4:45 pm-7:42 am
1 stop21h 57m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$586
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sat 12/19
4:45 pm-7:42 am
1 stop21h 57m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$634
Quickest round-trip
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 10/20
4:50 pm-7:00 pm
Nonstop8h 10m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$641
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Wed 11/4
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Wed 11/11
3:40 pm-6:05 am
Nonstop7h 25m
$658
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Thu 11/5
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Wed 11/11
3:40 pm-6:05 am
Nonstop7h 25m
$661
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 1/5
5:00 pm-9:16 am
1 stop23h 16m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$666
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Thu 11/5
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Thu 11/12
3:40 pm-6:05 am
Nonstop7h 25m
$668
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Mon 10/19
4:25 pm-9:49 pm
2 stops35h 24m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$671
Showing 1-10 of 14 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Keflavik Intl to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Keflavik Intl with our price prediction graph.
KEF-DEN
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 Reykjavik Keflavik Intl Airport to Denver
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