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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $89. Users have also found prices from $100 and $106 on American Airlines and Southwest, respectively.

How far in advance should I book a flight from Colorado to Florida Keys?

To save on the cost of your flight from Colorado to Florida Keys, book at least 31 days before your planned departure. Booking around this time can save you about 52% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $251 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $425.

What is the cheapest month to fly from Colorado to Florida Keys?

Our data shows that September tends to be the cheapest month to fly to Florida Keys from Colorado. Users have commonly found prices around $278 for the month, but tickets can be as low as $52. Due to multiple factors, prepare for potentially higher prices in March.

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

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

How can I find direct flights from Colorado to Florida Keys?

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

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

Yes. Cheapflights offers flight deals from Colorado 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.

$89+ Flights from Colorado to Florida Keys

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Colorado to Florida Keys with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Florida Keys

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$153 (CheapOair)
One-way from	$89 (Cheapflightsfares)
Popular in	March
Cheapest in	September
Average price	$287

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 Colorado to Florida Keys

Search Deals

One-way flight from Colorado to Florida Keys

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($48 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 April 2025

Search Deals

Find flight deals from Colorado to Florida Keys

Cheapest flights from Colorado to Florida Keys
Explore the most affordable flight options available from Colorado to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Tue 7/112:34 amDEN - MIA

Nonstop3h 56mFrontier

Tue 7/86:00 amMIA - DEN

Nonstop4h 21mFrontier

Deal found 4/25

$153

Wed 7/25:55 pmDEN - MIA

Nonstop4h 04mUnited Airlines

Tue 7/83:17 pmMIA - DEN

Nonstop4h 41mUnited Airlines

Deal found 4/23

$211

Tue 6/241:25 pmDEN - MIA

Nonstop4h 11mAmerican Airlines

Wed 7/238:22 pmMIA - DEN

Nonstop4h 19mAmerican Airlines

Deal found 4/24

$221

Tue 5/1312:05 pmDEN - MIA

1 stop6h 50mSouthwest

Tue 5/208:30 amMIA - DEN

Nonstop4h 30mSouthwest

Deal found 4/24

$234

Wed 12/310:45 amDEN - EYW

1 stop6h 59mDelta

Wed 12/106:00 pmEYW - DEN

1 stop6h 15mDelta

Deal found 4/24

$237

Mon 6/2312:55 amDEN - MIA

1 stop8h 46mDelta

Wed 7/162:30 pmMIA - DEN

1 stop9h 58mDelta

Deal found 4/25

$237

Sat 9/207:12 amDEN - EYW

2 stops9h 19mAmerican Airlines

Sat 9/277:31 pmEYW - DEN

1 stop5h 44mAmerican Airlines

Deal found 4/24

$242

Thu 6/510:38 pmDEN - MIA

1 stop9h 38mJetBlue

Mon 6/97:00 amMIA - DEN

1 stop8h 43mJetBlue

Deal found 4/25

$281

Fri 6/611:22 amASE - MIA

1 stop7h 08mAmerican Airlines

Sun 6/85:18 amMIA - ASE

1 stop6h 34mAmerican Airlines

Deal found 4/24

$287

Wed 6/2512:34 amDEN - MIA

Nonstop3h 56mMultiple Airlines

Sat 7/1912:20 pmMIA - DEN

1 stop23h 35mMultiple Airlines

Deal found 4/24

$288

Tue 7/16:00 amCOS - MIA

1 stop6h 54mDelta

Wed 7/162:03 pmMIA - COS

1 stop8h 26mDelta

Deal found 4/24

$294

Sat 11/810:02 amDEN - MIA

1 stop22h 49mSun Country Air

Sun 11/1611:53 amMIA - DEN

1 stop24h 49mSun Country Air

Deal found 4/25

$295

Best flights from Colorado to Florida Keys
Discover carefully curated flight deals from Colorado to Florida Keys that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 25, 2025.

Tue 7/112:34 amDEN - MIA

Nonstop3h 56mFrontier

Tue 7/86:00 amMIA - DEN

Nonstop4h 21mFrontier

Deal found 4/25

$153

Wed 7/25:55 pmDEN - MIA

Nonstop4h 04mUnited Airlines

Tue 7/83:17 pmMIA - DEN

Nonstop4h 41mUnited Airlines

Deal found 4/23

$211

Tue 6/2411:40 pmDEN - MIA

Nonstop3h 58mAmerican Airlines

Wed 7/168:22 pmMIA - DEN

Nonstop4h 19mAmerican Airlines

Deal found 4/25

$221

Tue 5/1312:05 pmDEN - MIA

1 stop6h 50mSouthwest

Tue 5/208:30 amMIA - DEN

Nonstop4h 30mSouthwest

Deal found 4/24

$234

Mon 6/2312:55 amDEN - MIA

1 stop8h 46mDelta

Wed 7/162:30 pmMIA - DEN

1 stop9h 58mDelta

Deal found 4/25

$237

Fri 7/45:35 pmDEN - MIA

1 stop15h 35mMultiple Airlines

Mon 7/76:00 amMIA - DEN

Nonstop4h 21mMultiple Airlines

Deal found 4/25

$269

Thu 6/510:38 pmDEN - MIA

1 stop9h 38mJetBlue

Mon 6/97:00 amMIA - DEN

1 stop8h 43mJetBlue

Deal found 4/25

$281

Wed 6/48:41 amDEN - EYW

1 stop28h 46mAllegiant Air

Sun 6/84:17 pmEYW - DEN

1 stop25h 46mAllegiant Air

Deal found 4/24

$336

Wed 8/208:39 amDEN - EYW

1 stop5h 31mAmerican Airlines

Sun 8/247:30 pmEYW - DEN

1 stop5h 55mAmerican Airlines

Deal found 4/24

$237

Tue 7/16:00 amCOS - MIA

1 stop6h 54mDelta

Wed 7/162:03 pmMIA - COS

1 stop8h 26mDelta

Deal found 4/24

$294

Fri 6/611:22 amASE - MIA

1 stop6h 19mAmerican Airlines

Sun 6/86:35 amMIA - ASE

1 stop8h 29mAmerican Airlines

Deal found 4/25

$287

Wed 5/281:45 pmEGE - MIA

1 stop8h 05mUnited Airlines

Tue 6/38:00 amMIA - EGE

1 stop8h 36mUnited Airlines

Deal found 4/25

$335

Last-minute flights from Colorado to Florida Keys
Discover last-minute flight deals from Colorado to Florida Keys. Data last updated April 25, 2025 and is based on user searches.

Thu 5/15:45 pmDEN - MIA

Nonstop4h 01mUnited Airlines

Tue 5/137:53 amMIA - DEN

Nonstop4h 38mUnited Airlines

Deal found 4/24

$378

Thu 5/16:30 pmDEN - MIA

2 stops28h 07mMultiple Airlines

Sun 5/41:53 pmMIA - DEN

2 stops29h 34mMultiple Airlines

Deal found 4/24

$430

Thu 5/111:59 pmDEN - MIA

1 stop11h 07mJetBlue

Wed 5/77:00 amMIA - DEN

1 stop8h 43mJetBlue

Deal found 4/25

$604

Thu 5/11:40 pmDRO - MIA

1 stop8h 06mUnited Airlines

Tue 5/69:30 amMIA - DRO

1 stop7h 15mUnited Airlines

Deal found 4/24

$634

Fri 5/26:05 pmDEN - MIA

1 stop9h 45mDelta

Sat 5/104:59 pmMIA - DEN

1 stop6h 49mDelta

Deal found 4/25

$397

Sat 5/311:56 pmDEN - MIA

Nonstop3h 49mAmerican Airlines

Sun 5/48:48 amMIA - DEN

Nonstop4h 30mAmerican Airlines

Deal found 4/24

$451

Sat 5/38:00 amEGE - MIA

2 stops11h 47mAmerican Airlines

Wed 5/287:21 amMIA - EGE

2 stops13h 31mAmerican Airlines

Deal found 4/25

$664

Sun 5/411:25 pmDEN - MIA

Nonstop3h 57mFrontier

Wed 5/76:00 amMIA - DEN

Nonstop4h 29mFrontier

Deal found 4/24

$217

Mon 5/512:15 pmDEN - EYW

1 stop6h 15mDelta

Thu 5/86:25 pmEYW - DEN

1 stop7h 39mDelta

Deal found 4/24

$388

Mon 5/56:15 amDEN - EYW

1 stop8h 25mAmerican Airlines

Thu 5/83:17 pmEYW - DEN

2 stops10h 42mAmerican Airlines

Deal found 4/24

$393

Mon 5/510:00 amDEN - MIA

2 stops9h 35mSouthwest

Thu 5/87:00 amMIA - DEN

2 stops14h 05mSouthwest

Deal found 4/24

$419

Mon 5/511:59 pmDEN - EYW

1 stop11h 04mUnited Airlines

Thu 5/82:18 pmEYW - DEN

1 stop10h 27mUnited Airlines

Deal found 4/25

$477

One-way flights from Colorado to Florida Keys
Search for one-way flight options from Colorado to Florida Keys. Find affordable one-way fares based on user searches. Data last updated April 25, 2025.

Sun 5/1811:25 pmDEN - MIA

Nonstop3h 57mFrontier

Deal found 4/25

$89

Wed 5/1411:58 amDEN - MIA

Nonstop3h 57mAmerican Airlines

Deal found 4/23

$100

Tue 5/273:40 pmDEN - MIA

Nonstop3h 50mSouthwest

Deal found 4/25

$106

Tue 5/276:25 pmDEN - MIA

1 stop10h 00mDelta

Deal found 4/25

$119

Mon 5/268:03 amDEN - MIA

1 stop12h 21mMultiple Airlines

Deal found 4/25

$132

Sun 6/111:59 pmDEN - MIA

1 stop9h 47mJetBlue

Deal found 4/25

$134

Thu 5/295:45 pmDEN - MIA

Nonstop4h 05mUnited Airlines

Deal found 4/24

$139

Fri 6/136:13 pmDEN - MIA

1 stop14h 57mSun Country Air

Deal found 4/24

$150

Sat 5/2411:59 pmDEN - EYW

1 stop10h 54mUnited Airlines

Deal found 4/25

$154

Tue 7/82:27 pmASE - MIA

1 stop6h 26mAmerican Airlines

Deal found 4/24

$169

Tue 7/226:00 amCOS - MIA

1 stop7h 48mDelta

Deal found 4/24

$176

Wed 5/149:40 amDEN - EYW

1 stop8h 27mDelta

Deal found 4/24

$181

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Tue 7/1

12:34 am-6:30 am

Nonstop3h 56m

Miami

Tue 7/8

6:00 am-8:21 am

Nonstop4h 21m

$153

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Wed 7/2

5:55 pm-11:59 pm

Nonstop4h 04m

Miami

Tue 7/8

3:17 pm-5:58 pm

Nonstop4h 41m

$211

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Tue 6/24

11:40 pm-5:38 am

Nonstop3h 58m

Miami

Wed 7/16

8:22 pm-10:41 pm

Nonstop4h 19m

$221

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Tue 5/13

12:05 pm-8:55 pm

1 stop6h 50m

Miami

Tue 5/20

8:30 am-11:00 am

Nonstop4h 30m

$234

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Mon 6/23

12:55 am-11:41 am

1 stop8h 46m

Miami

Wed 7/16

2:30 pm-10:28 pm

1 stop9h 58m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 8/20

8:39 am-4:10 pm

1 stop5h 31m

Key West

Sun 8/24

7:30 pm-11:25 pm

1 stop5h 55m

$237

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Thu 6/5

10:38 pm-10:16 am

1 stop9h 38m

Miami

Mon 6/9

7:00 am-1:43 pm

1 stop8h 43m

$281

AspenMiami

ASE - MIA

ASEMIA

Aspen Pitkin County

Fri 6/6

11:22 am-8:30 pm

1 stop7h 08m

Miami

Sun 6/8

5:18 am-9:52 am

1 stop6h 34m

$287

DenverMiami

DEN - MIA

DENMIA

Denver Intl

Wed 6/25

12:34 am-6:30 am

Nonstop3h 56m

Miami

Sat 7/19

12:20 pm-9:55 am

1 stop23h 35m

$288

Colorado SpringsMiami

COS - MIA

COSMIA

Colorado Springs

Tue 7/1

6:00 am-2:54 pm

1 stop6h 54m

Miami

Wed 7/16

2:03 pm-8:29 pm

1 stop8h 26m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 54 results

...

Best time to book a flight from Colorado to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Colorado 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 Colorado to Florida Keys

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

Currently, August is the cheapest month in which you can book a flight from Colorado to Florida Keys (average of $328). Flying from Colorado to Florida Keys in March is currently the most expensive (average of $493). 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.

What is the cheapest time of day to fly from CO to EOA?

When flying from Colorado to Florida Keys, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Florida Keys by month

In terms of precipitation, rainfall in Florida Keys ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Florida Keys when rainfall is around 1.6 in.

Temperature in Florida Keys by month

If weather is an important factor for your trip to Florida Keys, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Florida Keys

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Colorado to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,927 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,289 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,685 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

JetBlue

7.3

Good

2,922 reviews

Alaska Airlines

8.0

Very good

9,927 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What are the cheapest airlines to fly from Colorado to Florida Keys one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $89. Users have also found prices from $100 and $106 on American Airlines and Southwest, respectively.
Can I find deals for flights from Colorado to Florida Keys that include hotel bookings?
Yes. In addition to deals on Colorado to Florida Keys flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Colorado to Florida Keys?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Florida Keys.
Can I find deals for business class flights from Colorado to Florida Keys?
Yes. Cheapflights offers flight deals from Colorado 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 Colorado to Florida Keys?
Currently, August is the cheapest month in which you can book a flight from Colorado to Florida Keys (average of $328). Flying from Colorado to Florida Keys in March is currently the most expensive (average of $493). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Colorado to Florida Keys

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$236	Average$554	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$439	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$357	Average$588	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$89+ Cheap flights from Colorado 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Colorado to Florida Keys with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Colorado to Florida Keys

Keep the following information in mind while searching for Colorado to Florida Keys flight deals. Data was last updated April 25, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Colorado to Florida Keys

Cheapest flights from Colorado to Florida KeysExplore the most affordable flight options available from Colorado to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Explore the most affordable flight options available from Colorado to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado to Florida Keys that are best for you.

Best time to book a flight from Colorado to Florida Keys

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

Cheapflights Insights

Everything you need to know about your flight from Colorado to Florida Keys

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

What is the cheapest time of day to fly from CO to EOA?

Find hourly flight availability from Colorado to Florida Keys. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

Rainfall in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average rainfall totals by month.

Temperature in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average temperature totals by month.

Reviews of airlines servicing Florida Keys

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Colorado to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Colorado 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 are the cheapest airlines to fly from Colorado to Florida Keys one-way?

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

How can I find direct flights from Colorado to Florida Keys?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Colorado to Florida Keys

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Colorado to Florida Keys
Explore the most affordable flight options available from Colorado to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.