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Florida Keys

$75+ Cheap flights from Denver (DEN) to Florida Keys

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Denver to Florida Keys

Cheapest flights from Denver to Florida Keys
Explore the most affordable flight options available from Denver to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:06 pmDEN - MIA
Nonstop3h 54mFrontier
Wed 1/76:16 pmMIA - DEN
Nonstop4h 49mFrontier
Deal found 12/17$132
This Cheapflightsfares deal was found by Cheapflights users on 12/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:06 pmDEN - MIA
Nonstop3h 54mFrontier
Tue 1/67:05 amMIA - DEN
1 stop28h 58mFrontier
Deal found 12/18$175
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:00 amDEN - MIA
1 stop20h 35mFrontier
Wed 12/247:05 amMIA - DEN
1 stop27h 59mFrontier
Deal found 12/17$233
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:06 pmDEN - MIA
Nonstop3h 54mFrontier
Mon 1/56:05 amMIA - DEN
Nonstop4h 43mFrontier
Deal found 12/17$235
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:45 amDEN - MIA
1 stop8h 09mDelta
Wed 12/313:01 pmMIA - DEN
1 stop8h 44mDelta
Deal found 12/17$237
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amDEN - EYW
1 stop8h 29mUnited Airlines
Wed 12/314:29 pmEYW - DEN
1 stop7h 36mUnited Airlines
Deal found 12/17$294
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amDEN - EYW
1 stop8h 29mUnited Airlines
Thu 1/14:08 pmEYW - DEN
1 stop9h 30mUnited Airlines
Deal found 12/16$295
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:42 pmDEN - EYW
1 stop6h 16mDelta
Wed 1/76:06 pmEYW - DEN
1 stop6h 49mDelta
Deal found 12/17$297
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/317:00 amDEN - EYW
2 stops23h 15mMultiple Airlines
Mon 1/1211:04 amEYW - DEN
1 stop12h 45mMultiple Airlines
Deal found 12/17$307
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/317:00 amDEN - EYW
2 stops23h 15mMultiple Airlines
Fri 1/91:06 pmEYW - DEN
1 stop11h 53mMultiple Airlines
Deal found 12/17$313
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:42 pmDEN - EYW
1 stop6h 16mDelta
Tue 1/136:06 pmEYW - DEN
1 stop6h 49mDelta
Deal found 12/17$328
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:33 amDEN - EYW
1 stop9h 11mAmerican Airlines
Tue 1/62:58 pmEYW - DEN
1 stop7h 55mAmerican Airlines
Deal found 12/17$336

Find flight deals from Denver to Florida Keys

Keep the following information in mind while searching for Denver to Florida Keys flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$120
(CheapOair)

One-way from

$75
(CheapOair)

Popular in

December

Cheapest in

August

Average price

$395
Provider with most accurate pricing for Denver Intl-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Miami flights.
Search Deals
From Denver Intl to Florida Keys
Search Deals
One-way flight from Denver Intl to Florida Keys
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Florida Keys 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Denver to Florida Keys that are best for you.

Fly from

Denver

Fly to

Florida Keys

Route

Depart

Return

Price

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Thu 2/19

11:59 pm-5:51 am

Nonstop3h 52m

Miami

Tue 2/24

7:21 am-10:00 am

Nonstop4h 39m

$208

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 3/26

10:44 pm-11:57 am

1 stop11h 13m

Key West

Wed 4/1

12:30 pm-10:17 pm

1 stop11h 47m

$221

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 3/26

10:44 pm-11:57 am

1 stop11h 13m

Key West

Tue 3/31

12:30 pm-10:17 pm

1 stop11h 47m

$221

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 1/17

9:02 pm-9:37 pm

2 stops22h 35m

Key West

Sat 1/24

10:49 am-6:59 pm

1 stop10h 10m

$227

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 4/15

8:38 am-6:23 pm

1 stop7h 45m

Key West

Tue 4/21

4:02 pm-11:35 pm

2 stops9h 33m

$236

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 2/17

6:20 am-3:56 pm

1 stop7h 36m

Key West

Wed 2/25

1:36 pm-9:41 pm

2 stops10h 05m

$236

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 2/10

10:50 am-7:40 pm

1 stop6h 50m

Key West

Wed 2/18

6:07 pm-10:48 pm

1 stop6h 41m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 2/16

12:59 am-10:59 am

1 stop8h 00m

Key West

Fri 2/20

6:07 pm-12:25 am

1 stop8h 18m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 5/5

12:59 am-10:58 am

1 stop7h 59m

Key West

Tue 5/12

6:00 pm-10:18 pm

1 stop6h 18m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 2/16

12:59 am-10:59 am

1 stop8h 00m

Key West

Tue 2/24

6:07 pm-12:25 am

1 stop8h 18m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 40 results
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Best time to book a flight from Denver to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Denver with our price prediction graph.
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 Denver to Florida Keys

What is the cheapest month to book a flight from Denver to Florida Keys?

Currently, April is the cheapest month in which you can book a flight from Denver to Florida Keys (average of $198). Flying from Denver to Florida Keys in June is currently the most expensive (average of $282). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Florida Keys. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Denver to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue
Delta
7.9
Good
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue
United Airlines
7.4
Good
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue
Frontier
5.8
Fair
3,081 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

7.9

Food

7.0

Reviews

1 / 20
8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Denver to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Florida Keys?

    If you book a flight to Florida Keys from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver.

  • How long is the flight from Denver to Florida Keys?

    For as low as $208, United Airlines can have you in Florida Keys from Denver in 3h 52m. There are 1707 mi between Denver and Florida Keys. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Denver to Florida Keys one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $49. Users have also found prices from $88 and $88 on American Airlines and United Airlines, respectively.

  • Can I find deals for flights from Denver to Florida Keys that include hotel bookings?

    Yes. In addition to deals on Denver to Florida Keys flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Florida Keys.

  • Can I find deals for business class flights from Denver to Florida Keys?

    Yes. Cheapflights offers flight deals from Denver to Florida Keys by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Florida Keys?

    Currently, April is the cheapest month in which you can book a flight from Denver to Florida Keys (average of $198). Flying from Denver to Florida Keys in June is currently the most expensive (average of $282). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Denver to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Denver to Florida Keys

Discover the top 3 airlines that operate flights from Denver to Florida Keys. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$230Average$371FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$355FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$284Average$533FlexibilityNo cancel feeOn-time69%

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