$505+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Oct 10 — Oct 171
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
Cheapest
Best
Last-minute
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 10, 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 10, 2026.
This Booking.com deal was found by Cheapflights users on 9/7. 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 10/294:55 pm -
Nonstop8h 05m
Wed 11/43:40 pm -
Nonstop7h 25m
Deal found 9/7![Icelandair logo]()
$658
This Gotogate deal was found by Cheapflights users on 9/7. 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 10/224:50 pm -
Nonstop8h 10m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/7![Icelandair logo]()
$664
This Gotogate deal was found by Cheapflights users on 9/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:50 pm -
Nonstop8h 10m
Sun 10/254:40 pm -
Nonstop7h 25m
Deal found 9/8![Icelandair logo]()
$675
This Gotogate deal was found by Cheapflights users on 9/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:50 pm -
Nonstop8h 10m
Sat 10/314:40 pm -
Nonstop7h 25m
Deal found 9/9![Icelandair logo]()
$695
This Gotogate deal was found by Cheapflights users on 9/5. 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 9/5![Icelandair logo]()
$743
This Ticket deal was found by Cheapflights users on 9/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:55 pm -
Nonstop8h 05m
Sun 11/13:40 pm -
Nonstop7h 25m
Deal found 9/10![Icelandair logo]()
$762
This Icelandair deal was found by Cheapflights users on 9/7. 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 10/294:55 pm -
Nonstop8h 05m
Wed 11/41:15 pm -
1 stop10h 15m
Deal found 9/7![Multiple Airlines logo]()
$800
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 10, 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 10, 2026.
This oojo deal was found by Cheapflights users on 9/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:50 pm -
Nonstop8h 10m
Thu 10/297:07 am -
1 stop17h 08m
Deal found 9/8![Icelandair logo]()
$797
This Icelandair deal was found by Cheapflights users on 9/7. 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 10/294:55 pm -
Nonstop8h 05m
Wed 11/41:15 pm -
1 stop10h 15m
Deal found 9/7![Multiple Airlines logo]()
$805
This Icelandair deal was found by Cheapflights users on 9/5. 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 10/205:00 pm -
1 stop21h 20m
Tue 10/274:40 pm -
Nonstop7h 25m
Deal found 9/5![Multiple Airlines logo]()
$845
This Icelandair deal was found by Cheapflights users on 9/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:45 pm -
1 stop21h 17m
Sat 10/312:05 pm -
1 stop10h 25m
Deal found 9/9![Multiple Airlines logo]()
$907
This Icelandair deal was found by Cheapflights users on 9/7. 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 10/224:45 pm -
1 stop20h 15m
Thu 10/2912:40 pm -
1 stop11h 25m
Deal found 9/7![Multiple Airlines logo]()
$917
Last-minute flights from Keflavik Intl to DenverDiscover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 10, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/5. 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 9/5![Icelandair logo]()
$743
This Gotogate deal was found by Cheapflights users on 9/7. 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 10/224:50 pm -
Nonstop8h 10m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/7![Icelandair logo]()
$664
This Gotogate deal was found by Cheapflights users on 9/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:50 pm -
Nonstop8h 10m
Sun 10/254:40 pm -
Nonstop7h 25m
Deal found 9/8![Icelandair logo]()
$675
This Gotogate deal was found by Cheapflights users on 9/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:50 pm -
Nonstop8h 10m
Sat 10/314:40 pm -
Nonstop7h 25m
Deal found 9/9![Icelandair logo]()
$695
This Ticket deal was found by Cheapflights users on 9/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:55 pm -
Nonstop8h 05m
Sun 11/13:40 pm -
Nonstop7h 25m
Deal found 9/10![Icelandair logo]()
$762
This Booking.com deal was found by Cheapflights users on 9/7. 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 10/294:55 pm -
Nonstop8h 05m
Wed 11/43:40 pm -
Nonstop7h 25m
Deal found 9/7![Icelandair logo]()
$658
This Icelandair deal was found by Cheapflights users on 9/7. 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 10/294:55 pm -
Nonstop8h 05m
Wed 11/41:15 pm -
1 stop10h 15m
Deal found 9/7![Multiple Airlines logo]()
$800
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 10, 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 10, 2026.
This oojo deal was found by Cheapflights users on 9/7. 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.
Fri 10/304:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$505
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/174:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$506
This Booking.com deal was found by Cheapflights users on 9/5. 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.
Wed 12/234:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Icelandair logo]()
$507
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Wed 10/214:50 pm -
Nonstop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$509
This FlightHub deal was found by Cheapflights users on 9/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Wed 12/304:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Wed 10/284:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$527
This Icelandair deal was found by Cheapflights users on 9/7. 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 11/14:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$528
This oojo deal was found by Cheapflights users on 9/7. 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.
Fri 1/14:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$543
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $647 (Gotogate) |
One-way from | $505 (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 10, 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
Quickest round-trip
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 12/22
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$507
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sun 11/1
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$528
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Thu 10/8
7:50 pm-8:20 am
2 stops42h 30m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$601
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Wed 10/21
5:00 pm-9:49 pm
2 stops34h 49m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$628
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sun 10/4
11:50 pm-8:21 pm
3 stops50h 31m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$629
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Thu 11/12
5:00 pm-8:13 am
2 stops22h 13m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$634
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Wed 12/30
4:45 pm-6:20 pm
1 stop32h 35m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$638
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sat 10/31
4:05 pm-4:10 pm
1 stop30h 05m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$646
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
$681
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Thu 12/17
9:55 pm-12:36 am
3 stops33h 41m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$686
Showing 1-10 of 15 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
Related info for your journey
Find useful and relevant information for your journey from Keflavik Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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