DEN - EYW

$127 Find Cheap Flights from Denver to Key West

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Key West departing on 12/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Key West, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Key West, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Denver to Key West (DEN-EYW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Key West that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Key West

Sat, Dec 6 - Thu, Dec 11
Multiple Airlines Logo
11:59 pm - 3:44 pmDEN-EYW
13h 45m1 stop
Multiple Airlines Logo
4:34 pm - 7:15 amEYW-DEN
40h 41m2 stops
$218Multiple Airlines
Find Deal
Sat, Dec 6 - Thu, Dec 11
Multiple Airlines Logo
11:59 pm - 3:44 pmDEN-EYW
13h 45m1 stop
Multiple Airlines Logo
4:34 pm - 8:24 amEYW-DEN
17h 50m1 stop
$220Multiple Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
Multiple Airlines Logo
11:00 pm - 10:19 amDEN-EYW
9h 19m1 stop
Multiple Airlines Logo
11:45 am - 10:18 amEYW-DEN
24h 33m2 stops
$221Multiple Airlines
Find Deal
Sun, Dec 7 - Thu, Dec 11
Multiple Airlines Logo
11:12 am - 1:39 pmDEN-EYW
24h 27m1 stop
Multiple Airlines Logo
4:34 pm - 8:24 amEYW-DEN
17h 50m1 stop
$229Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
8:33 am - 12:39 pmDEN-EYW
26h 06m1 stop
Multiple Airlines Logo
4:34 pm - 7:15 amEYW-DEN
40h 41m2 stops
$230Multiple Airlines
Find Deal
Tue, Feb 17 - Wed, Feb 25
American Airlines Logo
6:20 am - 3:56 pmDEN-EYW
7h 36m1 stop
American Airlines Logo
1:36 pm - 8:20 pmEYW-DEN
8h 44m1 stop
$231American Airlines
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Sat, Dec 6 - Sun, Dec 14
Multiple Airlines Logo
11:59 pm - 3:44 pmDEN-EYW
13h 45m1 stop
Multiple Airlines Logo
10:27 pm - 9:10 amEYW-DEN
12h 43m1 stop
$232Multiple Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
10:34 am - 8:06 pmDEN-EYW
7h 32m1 stop
Delta Logo
3:02 pm - 8:30 pmEYW-DEN
7h 28m1 stop
$237Delta
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Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
11:29 am - 11:56 pmDEN-EYW
10h 27m2 stops
American Airlines Logo
1:36 pm - 9:28 pmEYW-DEN
9h 52m2 stops
$241American Airlines
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Thu, Nov 20 - Mon, Nov 24
Allegiant Air Logo
8:45 am - 1:15 pmDEN-EYW
26h 30m1 stop
Allegiant Air Logo
3:13 pm - 8:25 amEYW-DEN
19h 12m1 stop
$282Allegiant Air
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $231 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to Key West
Watch video
Watch video
Watch video
Watch video
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 26% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$218
Overall average: $443
Multiple Airlines
Sat 12/6Thu 12/11
DEN - EYW • 1 stop
Cheapest one-way
$127
Typical prices: $180-$377
Multiple Airlines
Mon 12/29
DEN - EYW • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Key West!
Booking Insights

KAYAK's insights & trends for Denver to Key West flights

Get data-powered insights and trends into flights from Denver to Key West to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Key West
Find cheap flights to Key West

Planning a trip from Denver to Key West? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Denver to Key West?

The average price of all round-trip flights from Denver to Key West clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Key West on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Denver to Key West. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Denver to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Key West, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Key West is August, where tickets cost $298 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $529 and $472 respectively.

How far in advance should I book a flight from Denver to Key West?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Key West, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Key West, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$127
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Denver to Key West

When to book flights from Denver to Key West

Are your dates flexible? Find out the best times to travel from Denver to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Key West

  • What amenities does EYW airport offer nursing mothers?

    Nursing mothers flying through this airport have a chance to use the private, secure lactation rooms that they can use to breastfeed and pump milk for their infants. The rooms are equipped with a sink, diaper changing table, electrical appliances, soft lighting and rocking chairs.

  • Are there onsite hotels at EYW airport?

    Passengers arriving late and looking for accommodation near the airport for easy access can consider staying at the Key West Marriott Beachside hotel, which is located 0.2 miles away from the airport. The hotel offers free shuttle services, a beautiful view of the airport, comfortable bed and breakfast.

  • Where can I spend the night at DEN airport?

    Passengers having early morning flights or connecting flights and would like to spend the night at this airport can head to terminal 5, where they can spend the night at the free rest zone area. You should remember to carry with you an extra warm travel blanket for more comfort.

  • What activities can I engage in at DEN airport?

    There are a few activities that you can engage in at this airport, there is always live music playing, art, and gaming, and you can also unwind in one of the lounges like USO Lounge Denver International Airport, where you can eat and drink at.

  • What is the cheapest flight from Denver to Key West?

    In the last 3 days, the lowest price for a flight from Denver to Key West was $127 for a one-way ticket and $218 for a round-trip.

  • Do I need a passport to fly between Denver and Key West?

    No

  • Which airports will I be using when flying from Denver to Key West?

    On your way to Key West, you’ll fly out from Denver Intl. You’ll be landing at Key West.

  • Which aircraft models fly most regularly from Denver to Key West?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Key West?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Denver and Key West, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Denver to Key West, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Key West are Delta and United Airlines. With an average price for the route of $390 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $560 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Key West?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Key West.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Key West?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Key West?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key West with an airline and back to Denver with another airline. Booking your flights between Denver and EYW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Key West?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key West from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Key West

  • Denver International Airport (DEN) provides a variety of parking lot locations for you to use if you are leaving Denver and have no idea where to leave your car. You can use the parking lots at terminal 3 if you intend to travel for a long time. On the other hand, there are several short-term parking lots on terminal 1 and at the garage next to the gate where shuttle drivers pick up and drop off passengers.
  • The distance between the city center to the DEN airport is approximately 19 miles. If you are running late to the airport, you can take a cab which will take approximately 25 minutes to the airport, depending on the traffic. It is the quickest and most reasonable mode of transportation. You can also opt for a bus which is the cheapest way to get to the airport if you are on a tight budget. It will take 40 minutes to cover the same distance.
  • Make sure you inform the airline that you are flying with if you are going to need assistance with a wheelchair or something else when you land at Key West International Airport (EYW). This is for quick and easy communication with the airport staff in charge of the amenities.
  • Before booking your flight, inquire about the inflight services that the airline you are flying with offers. For instance, if you are looking for entertainment onboard, ensure you confirm availability. This is because flights from DEN to EYW are commonly operated by the same airlines, and many of those flights offer the same amenities.
  • When you arrive at EYW airport, before you board your shuttle or taxis to your final destination, you can make use of lounges like LoungeBuddy, where you can relax, freshen up, eat and drink.

Reviews of the top 3 airlines serving from Denver to Key West

 
See real verified KAYAK customer reviews for airlines flying from Denver to Key West. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Key West? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7992 reviews
8.2Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

The flight was an hour and a half late departing which was inconvenient

8.0 ExcellentDan, Oct 2025SLC - MCO
Read more Delta reviews

The flight was an hour and a half late departing which was inconvenient

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Movie selection was meh. Food was great. Crew as always great. I paid for premium because that’s the only way not to feel like a sardine. That’s how economy should be imo. Sadly passengers have to pay an extra $1000 to get what they should at base price but that’s all airlines. The airline industry in general treats passengers as cargo.

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

We didn't take off until an hour after we boarded.

Wish they had the seat-back video screens for watching movies or playing games.

Very good but wish they had the seat-back video screens for movies & games

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Everything you need to know for your flight from Denver to Key West

Information on your arrival and departure airports

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