DEN - EYW

$145 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 5/5. 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.
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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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Cheap Flights from Denver to Key West

 
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.

Recent round-trip flight deals from Denver to Key West

KAYAK's recommended round-trip deals from the most popular airlines that fly from Denver to Key West.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
7:01 am - 4:18 pmDEN-EYW
7h 17m1 stop
American Airlines Logo
2:31 pm - 7:39 pmEYW-DEN
7h 08m1 stop
$231American Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
American Airlines Logo
7:01 am - 4:18 pmDEN-EYW
7h 17m1 stop
American Airlines Logo
11:26 am - 10:55 pmEYW-DEN
13h 29m2 stops
$236American Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Delta Logo
12:59 am - 10:51 amDEN-EYW
7h 52m1 stop
Delta Logo
11:48 am - 5:39 pmEYW-DEN
7h 51m1 stop
$277Delta
Find Deal
Mon, May 26 - Tue, Jun 3
Delta Logo
9:40 am - 8:07 pmDEN-EYW
8h 27m1 stop
Delta Logo
6:00 pm - 10:19 pmEYW-DEN
6h 19m1 stop
$288Delta
Find Deal
Sun, May 25 - Sat, Aug 16
 Logo
6:00 am - 6:05 pmDEN-EYW
10h 05m2 stops
 Logo
2:45 pm - 11:59 pmEYW-DEN
11h 14m1 stop
Fri, Jun 13 - Thu, Jun 19
United Airlines Logo
6:05 pm - 8:00 amDEN-EYW
11h 55m1 stop
United Airlines Logo
1:41 pm - 10:57 pmEYW-DEN
11h 16m1 stop
$377United Airlines
Find Deal
Wed, Jun 25 - Wed, Jul 2
Allegiant Air Logo
8:41 am - 3:27 pmDEN-EYW
28h 46m1 stop
Allegiant Air Logo
8:53 am - 7:10 amEYW-DEN
24h 17m2 stops
$389Allegiant Air
Find Deal
Wed, Jun 4 - Sun, Jun 8
Allegiant Air Logo
4:53 pm - 3:03 pmDEN-EYW
20h 10m2 stops
Allegiant Air Logo
8:53 am - 7:10 amEYW-DEN
24h 17m2 stops
$396Allegiant Air
Find Deal
Fri, Jun 13 - Thu, Jun 19
United Airlines Logo
11:59 pm - 8:00 amDEN-EYW
6h 01m1 stop
United Airlines Logo
6:45 pm - 6:20 pmEYW-DEN
25h 35m1 stop
$436United Airlines
Find Deal
Fri, Jul 25 - Mon, Jul 28
 Logo
4:53 pm - 3:03 pmDEN-EYW
20h 10m2 stops
 Logo
10:32 am - 6:45 pmEYW-DEN
34h 13m3 stops
Fri, Jun 13 - Thu, Jun 19
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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 September, where tickets cost $326 (return) on average. On the other hand, the most expensive months are March and October, where the average cost of round-trip tickets is $568 and $488 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. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonSeptember
High seasonApril
Cheapest flight$145
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 7% 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 $145 for a one-way ticket and $231 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Key West, with SkyTeam 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 $382 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $566 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.

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.
8.0
DeltaOverall score based on 7934 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

This was a code share Latam Airlines flight - everything very good except there was no seatback entertainment

Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.

Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …

My flight was cancelled twice and the third time I tried to rebook it online I cancelled the flight because it looked like I would get a refund to my credit card. Instead I now have a credit. I was also on hold for three hours waiting for a representative and then disconnected. I will never fly delta again.

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

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

Plane still had screens for watching movies. Good selection too.

There was no air on the plane and it was very hot.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Any sort of gluten free snack option would be nice

Would have thought that they would gas up plane before everyone got on board

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Standard. No different than a discount carrier on a short trip.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Checking in at the counter was very disappointing. The lady had a very bad attitude and smart at me. She had no smile, did not greet me by name, or acknowledge me as a valued customer. Poor reflection of the airline.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

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

Information on your arrival and departure airports

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