DEN - EYW

$134 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 6/3. 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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Everything you should know

Cheapest round-trip
$271
Typical prices: $581-$343
Delta
Tue 7/7Tue 7/14
DEN - EYW • 1 stop
Cheapest one-way
$134
Typical prices: $269-$313
Multiple Airlines
Wed 6/3
DEN - EYW • 2 stops
Top airlines
Cheapest • from $271 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Key West. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $284 (round-trip)
Shortest trip • 6h 12m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Key West!
Flight Deals
Booking Insights
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

Tue, Jul 7 - Tue, Jul 14
Delta Logo
7:15 am - 5:23 pm
DEN
-
EYW
8h 08m
1 stop
Delta Logo
6:18 pm - 12:23 am
EYW
-
DEN
8h 05m
1 stop
$271Delta
Sat, Jun 27 - Fri, Jul 3
Delta Logo
5:45 am - 2:55 pm
DEN
-
EYW
7h 10m
1 stop
Delta Logo
1:23 pm - 8:44 pm
EYW
-
DEN
9h 21m
1 stop
$297Delta
Sat, Jul 4 - Wed, Jul 8
Multiple Airlines Logo
3:47 pm - 10:05 am
DEN
-
EYW
16h 18m
1 stop
Multiple Airlines Logo
11:46 am - 3:56 am
EYW
-
DEN
18h 10m
2 stops
$307Multiple Airlines
Mon, Jun 22 - Mon, Jun 29
Delta Logo
12:40 am - 11:02 am
DEN
-
EYW
8h 22m
1 stop
Delta Logo
7:50 am - 3:00 pm
EYW
-
DEN
9h 10m
1 stop
$310Delta
Wed, Jun 24 - Tue, Jun 30
Multiple Airlines Logo
11:13 am - 10:06 am
DEN
-
EYW
20h 53m
1 stop
Multiple Airlines Logo
1:14 pm - 9:03 am
EYW
-
DEN
21h 49m
2 stops
$313Multiple Airlines
Mon, Jun 22 - Tue, Jun 30
Multiple Airlines Logo
11:59 pm - 12:34 pm
DEN
-
EYW
10h 35m
1 stop
Multiple Airlines Logo
1:14 pm - 9:03 am
EYW
-
DEN
21h 49m
2 stops
$323Multiple Airlines
Tue, Jun 23 - Mon, Jun 29
Multiple Airlines Logo
6:30 am - 11:06 am
DEN
-
EYW
26h 36m
2 stops
Multiple Airlines Logo
10:31 am - 10:12 pm
EYW
-
DEN
13h 41m
1 stop
$325Multiple Airlines
Wed, Jun 24 - Fri, Jul 3
Multiple Airlines Logo
11:13 am - 10:06 am
DEN
-
EYW
20h 53m
1 stop
Multiple Airlines Logo
12:07 pm - 11:54 pm
EYW
-
DEN
37h 47m
2 stops
$328Multiple Airlines
Sat, Jun 27 - Tue, Jun 30
Multiple Airlines Logo
3:53 pm - 10:06 am
DEN
-
EYW
16h 13m
1 stop
Multiple Airlines Logo
1:14 pm - 9:03 am
EYW
-
DEN
21h 49m
2 stops
$329Multiple Airlines
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
6:41 am - 4:11 pm
DEN
-
EYW
7h 30m
1 stop
American Airlines Logo
11:28 am - 9:32 pm
EYW
-
DEN
12h 04m
2 stops
$334American Airlines
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.

How much is a round-trip flight from Denver to Key West?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Key West departing in July.

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 $288 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $477 and $459 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 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$134
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 4% increase in price.
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 $134 for a one-way ticket and $271 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 $377 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 $397 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 8459 reviews
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

8.0 ExcellentPaul A, Apr 2026
ATL - MIA
Read more Delta reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

N Everything was perfect from boarding to assistance to baggage in Tampa

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The whole experience was excellent. As it most often is with Delta

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

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..

Cancelled BOYH legs of our flight home 30 min before initial boarding

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

I was able to get the AA customer Service desk to put me on an earlier flight without any issues.

Incredibly delayed. First delay was due to plane coming in being late. Resulted in 30 minute delay. Boarded and then had multiple mechanical issues. Was on plane for an hour until they told people they could get off if they wanted but couldn't come back. Then gate agent rushed in and said they had lost control of who went off and we would all have to deplane and then get back on. They said flight had not been cancelled. Then while sitting waiting to board again they announced it would take two hours to get new plane and to wait at new gate. New plane arrived, reboarded only to find out that pilots had timed out. Waited for new pilots. In that time one of the flight attendants timed out. Never received food or water while waiting. Was confusing mess as to what was happening. Even flight attendants and gate agents were getting frustrated. Almost 6 hours delayed. Called American to received flight credit but can't get anywhere as Kayak reservation and don't have a ticket number. Reached out to Kayak but never heard back.

Very disappointing. Flight was delayed by 1.5 hours and food options are very underwhelming even for first class seats (same food given to economy seats)

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

I would have liked vegetarian and gluten free options for evening dinner time flight. I would have like a pillow on the international overnight flight . The veg wrap and oaten desert on the international flight was good

We hoarded. Then we deplaned. Then we waited for 10 hours in the MSP airport due to a wheel misfunction. We understand safety but communication between crew and airport staff was horrible. When we did finally board, we were rushed on and because we were waiting for a “fresh” pilot and crew, we sat in a roasting plane with no A/C for an hour. My question is why was this flight not cancelled right away when they knew this would be a huge issue OR, why did AA not get a substitute plane, considering this was already a full flight? To me, this appears to be a complete breakdown in leadership and utter systems failure. The compensation for completely disrupting travel plans for hundreds, which we paid dearly for, was measly. While we appreciated the lodging for the night, $12 in meal vouchers isn’t going to sustain anyone for over 12 hours. “We apologize; our hands are tied” is no longer an acceptable explanation. We are so completely turned off by this experience and will definitely seek alternative avenues when we need to fly.

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

Information on your arrival and departure airports