$442 Cheap Icelandair flights Denver (DEN) to Reykjavik (KEF)

View $442 flight on Sun, Jan 25, 2026Opens in a new window

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$442 Cheap Icelandair flights Denver (DEN) to Reykjavik (KEF)

Prices were available within the past 7 days and start at $442 for one-way flights and $467 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Tue, Oct 21 - Sat, Nov 8
DEN
Denver
KEF
Reykjavik
$467 Roundtrip, found 4 days ago
$467
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue, Oct 21 from Denver to Reykjavik, returning Sat, Nov 8, priced at $467 found 4 days ago
Icelandair
Sun, Oct 12 - Tue, Oct 21
DEN
Denver
KEF
Reykjavik
$484 Roundtrip, found 4 days ago
$484
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sun, Oct 12 from Denver to Reykjavik, returning Tue, Oct 21, priced at $484 found 4 days ago
Icelandair
Tue, Jan 6 - Sun, Jan 11
DEN
Denver
KEF
Reykjavik
$487 Roundtrip, found 5 days ago
$487
Roundtrip
found 5 days ago
Select Icelandair flight, departing Tue, Jan 6 from Denver to Reykjavik, returning Sun, Jan 11, priced at $487 found 5 days ago
Icelandair
Tue, Aug 12 - Mon, Sep 1
DEN
Denver
KEF
Reykjavik
$525 Roundtrip, found 5 days ago
$525
Roundtrip
found 5 days ago
Select Icelandair flight, departing Tue, Aug 12 from Denver to Reykjavik, returning Mon, Sep 1, priced at $525 found 5 days ago
Icelandair
Sun, Oct 12 - Tue, Oct 21
DEN
Denver
KEF
Reykjavik
$544 Roundtrip, found 4 days ago
$544
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sun, Oct 12 from Denver to Reykjavik, returning Tue, Oct 21, priced at $544 found 4 days ago
Icelandair
Fri, Sep 5 - Thu, Sep 18
DEN
Denver
KEF
Reykjavik
$557 Roundtrip, found 5 days ago
$557
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Sep 5 from Denver to Reykjavik, returning Thu, Sep 18, priced at $557 found 5 days ago
Icelandair
Sat, Sep 27 - Sun, Oct 5
DEN
Denver
KEF
Reykjavik
$562 Roundtrip, found 4 days ago
$562
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Sep 27 from Denver to Reykjavik, returning Sun, Oct 5, priced at $562 found 4 days ago
Flights from Denver (DEN) to Reykjavik (KEF)
Origin airport
Denver Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Icelandair, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Icelandair
Distance
3558 mi
Average flight time
13 hours 17 mins

Frequently asked questions

How much is an Icelandair flight from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF)?
You'll discover cheap round-trip Icelandair flights from $467 from DEN to KEF by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from $442 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to KEF with Icelandair?
Search for one-way or round-trip flights to Reykjavik in January or April. You could find lower fares with Icelandair during these off-peak months.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF) with Icelandair?
To get affordable flights from DEN to KEF with Icelandair, start your search about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Icelandair fly nonstop from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF)?
Depart on one of Icelandair's 4 weekly direct flights from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF). To see what's available, enter your origin, dates and destination and hit search. Then apply the "Nonstop" and "Airline" filters.
How long does it take to fly from DEN to KEF with Icelandair?
It takes around 7h 25m to fly nonstop from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF) with Icelandair.
What is the earliest Icelandair flight from DEN to KEF?
The first flight from DEN to KEF with Icelandair leaves at 3:40PM UTC-7. You'll touch down at 6:05AM UTC+0. The last Icelandair flight of the day takes off at 3:40PM UTC-7 and arrives at 6:05AM UTC+0. With approximately 20% fewer cancellations for morning and mid-morning flights, beginning your travel day early is generally the best way to go.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Icelandair fly into in Reykjavik?
Keflavik Intl. Airport (KEF) is the primary Reykjavik hub for Icelandair flights from Denver Intl. Airport (DEN).
What kind of luggage can I take on an Icelandair flight from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF)?
On Icelandair, you can fly standard economy from DEN to KEF with a small personal item and 1 cabin bag. Your carry-on bag should be no bigger than 21 inches x 7 inches x 13 inches and weigh under 13 lb. Going over these limits could lead to additional fees, so check your airline's latest guidelines before booking.
Why fly with Icelandair from DEN to KEF?
Icelandair makes traveling from DEN to KEF more enjoyable with top-tier customer service and a rewarding loyalty program. You also have the chance to earn points with Icelandair Saga Club. Don't forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Icelandair fly from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF)?
Hop on an Icelandair flight from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF), and you'll likely be flying on a Boeing 737 MAX 8. Bear in mind though, that the aircraft type can vary due to operational reasons.
Can I change or cancel my Icelandair flight from Denver Intl. Airport (DEN) to Keflavik Intl. Airport (KEF)?
Depending on your fare type, a fee is typically charged if you modify or cancel your booking more than 24 hours after confirmation. To secure flexible plane tickets, select our "Changes included" and "No cancel fee" boxes when you search for flights. For additional information on canceling or changing your reservation, head to "Trips," select your flight and tick "Manage Booking."

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