$390+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — DEN
Oct 4 — Oct 111
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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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 4, 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 4, 2026.
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Fri 11/64:55 pm -
Nonstop8h 05m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/3![Icelandair logo]()
$390
This Priceline deal was found by Cheapflights users on 9/3. 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 11/65:00 pm -
1 stop27h 07m
Wed 11/113:40 pm -
Nonstop7h 25m
Deal found 9/3![Multiple Airlines logo]()
$636
This Gotogate deal was found by Cheapflights users on 8/30. 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
Wed 10/284:40 pm -
Nonstop7h 25m
Deal found 8/30![Icelandair logo]()
$647
This Gotogate deal was found by Cheapflights users on 9/1. 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.
Fri 10/234:50 pm -
Nonstop8h 10m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/1![Icelandair logo]()
$656
This Booking.com deal was found by Cheapflights users on 9/3. 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 9/3![Icelandair logo]()
$658
This oojo deal was found by Cheapflights users on 9/2. 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.
Sun 12/64:55 pm -
Nonstop8h 05m
Thu 1/711:35 am -
1 stop11h 35m
Deal found 9/2![Icelandair logo]()
$664
This Gotogate deal was found by Cheapflights users on 8/30. 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.
Fri 9/410:45 am -
Nonstop7h 55m
Sun 9/134:40 pm -
Nonstop7h 20m
Deal found 8/30![Icelandair logo]()
$760
This Flysmarter deal was found by Cheapflights users on 9/1. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:55 pm -
1 stop21h 47m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/1![Multiple Airlines logo]()
$762
This lol.travel deal was found by Cheapflights users on 9/2. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:10 pm -
1 stop24h 32m
Wed 10/284:40 pm -
Nonstop7h 25m
Deal found 9/2![Multiple Airlines logo]()
$765
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 4, 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 4, 2026.
This Icelandair deal was found by Cheapflights users on 9/2. 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 10/224:50 pm -
Nonstop8h 10m
Wed 10/2812:45 pm -
1 stop11h 50m
Deal found 9/2![Multiple Airlines logo]()
$819
This Icelandair deal was found by Cheapflights users on 8/30. 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.
Wed 2/35:00 pm -
1 stop13h 17m
Sat 2/67:00 am -
1 stop16h 15m
Deal found 8/30![Icelandair logo]()
$901
This Icelandair deal was found by Cheapflights users on 9/2. 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 12/65:00 pm -
1 stop13h 55m
Thu 1/77:35 am -
1 stop15h 55m
Deal found 9/2![Multiple Airlines logo]()
$846
This Icelandair deal was found by Cheapflights users on 8/30. 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 10/107:50 pm -
1 stop19h 45m
Mon 2/13:40 pm -
Nonstop7h 25m
Deal found 8/30![Multiple Airlines logo]()
$872
This Icelandair deal was found by Cheapflights users on 9/3. 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 11/410:55 am -
2 stops12h 15m
Deal found 9/3![Multiple Airlines logo]()
$876
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 11/64:55 pm -
Nonstop8h 05m
Wed 11/1110:39 am -
3 stops48h 11m
Deal found 9/3![Multiple Airlines logo]()
$889
Last-minute flights from Keflavik Intl to DenverDiscover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Denver. Data last updated September 4, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/30. 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.
Fri 9/410:45 am -
Nonstop7h 55m
Sun 9/134:40 pm -
Nonstop7h 20m
Deal found 8/30![Icelandair logo]()
$760
This Gotogate deal was found by Cheapflights users on 8/30. 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
Wed 10/284:40 pm -
Nonstop7h 25m
Deal found 8/30![Icelandair logo]()
$647
This lol.travel deal was found by Cheapflights users on 9/2. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:10 pm -
1 stop24h 32m
Wed 10/284:40 pm -
Nonstop7h 25m
Deal found 9/2![Multiple Airlines logo]()
$765
This Gotogate deal was found by Cheapflights users on 9/1. 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.
Fri 10/234:50 pm -
Nonstop8h 10m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/1![Icelandair logo]()
$656
This Flysmarter deal was found by Cheapflights users on 9/1. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:55 pm -
1 stop21h 47m
Thu 10/294:40 pm -
Nonstop7h 25m
Deal found 9/1![Multiple Airlines logo]()
$762
This Booking.com deal was found by Cheapflights users on 9/3. 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 9/3![Icelandair logo]()
$658
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 4, 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 4, 2026.
This Mytrip deal was found by Cheapflights users on 8/30. 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 10/274:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Icelandair logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/74:50 pm -
Nonstop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Icelandair logo]()
$525
This Icelandair deal was found by Cheapflights users on 8/31. 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 2/24:55 pm -
Nonstop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Icelandair logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/35:00 pm -
3 stops53h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$540
This Icelandair deal was found by Cheapflights users on 8/31. 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 9/1010:45 am -
Nonstop7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Icelandair logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/135:00 pm -
2 stops21h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Multiple Airlines logo]()
$585
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/275:00 pm -
2 stops34h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Multiple Airlines logo]()
$590
This oojo deal was found by Cheapflights users on 8/30. 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 10/104:50 pm -
Nonstop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Icelandair logo]()
$593
This Trip.com deal was found by Cheapflights users on 8/30. 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.
Sat 10/107:50 pm -
2 stops34h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Multiple Airlines logo]()
$600
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/94:45 pm -
1 stop29h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Multiple Airlines logo]()
$603
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/84:50 pm -
Nonstop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Icelandair logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/124:50 pm -
Nonstop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Icelandair logo]()
$609
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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $390 (Mytrip) |
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 4, 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 2/2
4:55 pm-6:00 pm
Nonstop8h 05m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$527
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 10/27
5:00 pm-9:33 pm
2 stops34h 33m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$590
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sun 10/11
7:45 pm-8:19 am
1 stop18h 34m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$617
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Fri 9/25
5:00 pm-9:24 pm
2 stops34h 24m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$626
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sat 1/30
11:55 am-3:10 pm
1 stop34h 15m
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
Tue 10/13
7:50 pm-5:47 pm
3 stops27h 57m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$639
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Fri 10/9
5:00 pm-8:17 am
2 stops21h 17m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$640
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Tue 9/15
4:45 pm-4:01 pm
3 stops29h 16m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$756
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Sun 1/3
10:00 am-4:56 pm
1 stop13h 56m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$783
ReykjavikDenver
KEF Reykjavik Keflavik Intl - DEN Denver Intl
KEFDEN
Reykjavik Keflavik Intl
Fri 9/18
5:20 pm-9:35 am
1 stop22h 15m
Denver Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$794
Showing 1-10 of 16 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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