How long is the flight from Missouri to Florida Keys?

On average, it takes 12h 55m to fly from Missouri to Florida Keys if you fly out of St. Louis (the most popular airport in Missouri) and into Copenhagen (the most popular airport in Florida Keys). If you’re flying out of Kansas City and into Copenhagen, then the flight time is around 15h 43m.

How many flights depart from Missouri to Florida Keys on average per week?

The number of flights available between Missouri and Florida Keys is 58 per week as of February 2026. The most frequent departure day is Wed, with 24% of weekly flights leaving on this day.

What is the cheapest airline that flies from Missouri to Florida Keys?

Frontier, Spirit Airlines, and United Airlines are the most popular carriers operating from Missouri to Florida Keys

What airlines fly to Florida Keys?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Florida Keys from Missouri according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 3 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Missouri to Florida Keys?

Prices for flights from Missouri to Florida Keys refresh daily.

How many operators does momondo search for flights from Missouri to Florida Keys?

The number of operators available for flights from Missouri to Florida Keys is 6 as of February 2026.

How old do you have to be to fly from Missouri to Florida Keys?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The required travel and health documents for your Florida Keys trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Florida Keys. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$59 Cheap Flights from Missouri to Florida Keys in 2026

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Find the cheapest flights from Missouri to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:49 pm - 9:06 am

STL

EYW

16h 17m

1 stop

9:46 am - 11:59 pm

EYW

STL

15h 13m

1 stop

$185Multiple Airlines

Sat, Feb 21 - Thu, Feb 26

3:49 pm - 9:06 am

STL

EYW

16h 17m

1 stop

9:46 am - 11:59 pm

EYW

STL

15h 13m

1 stop

$186Multiple Airlines

Sat, Feb 21 - Thu, Feb 26

5:08 pm - 10:34 am

MCI

MIA

16h 26m

1 stop

7:59 pm - 7:55 pm

MIA

MCI

24h 56m

1 stop

$190Frontier

Mon, Mar 9 - Fri, Mar 13

5:00 am - 9:15 am

MCI

MIA

3h 15mnonstop

8:05 pm - 10:49 pm

MIA

MCI

3h 44mnonstop

$199American Airlines

Mon, Feb 23 - Thu, Feb 26

10:14 am - 4:51 pm

MCI

MIA

5h 37m

1 stop

5:05 am - 9:53 am

MIA

MCI

5h 48m

1 stop

$207Frontier

Sun, Feb 22 - Mon, Feb 23

11:22 am - 7:12 pm

STL

EYW

6h 50m

1 stop

6:49 pm - 11:44 pm

EYW

STL

5h 55m

1 stop

$223American Airlines

Wed, Mar 18 - Wed, Mar 25

11:26 am - 1:30 pm

MCI

EYW

25h 04m

1 stop

2:25 pm - 10:30 am

EYW

MCI

21h 05m

1 stop

$251Spirit Airlines

Thu, Feb 26 - Thu, Mar 5

11:26 am - 1:30 pm

MCI

EYW

25h 04m

1 stop

2:25 pm - 3:29 pm

EYW

MCI

26h 04m

2 stops

$275Spirit Airlines

Thu, Feb 26 - Mon, Mar 2

5:32 pm - 12:53 am

SGF

MIA

6h 21m

1 stop

12:01 pm - 6:11 pm

MIA

SGF

7h 10m

1 stop

$279Delta

Wed, Mar 4 - Wed, Mar 11

10:48 am - 5:23 pm

MCI

EYW

5h 35m

1 stop

6:18 pm - 11:50 pm

EYW

MCI

6h 32m

1 stop

$283Delta

Tue, Apr 28 - Sat, May 2

Frontier flights from Missouri to Florida Keys

Our best Frontier deals on Missouri to Florida Keys flight tickets

Frontier

Mar 9

MCI5:08 pmKansas City

16h 26m

1 stop

MIA10:34 amMiami

Mar 13

MIA7:59 pmMiami

24h 56m

1 stop

MCI7:55 pmKansas City

$190

Frontier

Feb 22

MCI10:14 amKansas City

5h 37m

1 stop

MIA4:51 pmMiami

Feb 23

MIA5:05 amMiami

5h 48m

1 stop

MCI9:53 amKansas City

$207

Frontier

Feb 21

MCI8:36 pmKansas City

7h 38m

1 stop

MIA5:14 amMiami

Feb 25

MIA5:45 amMiami

10h 59m

1 stop

MCI3:44 pmKansas City

$211

American Airlines flights from Missouri to Florida Keys

Our best American Airlines deals on Missouri to Florida Keys flight tickets

American Airlines

Feb 23

MCI5:00 amKansas City

3h 15m

MIA9:15 amMiami

Feb 26

MIA8:05 pmMiami

3h 44m

MCI10:49 pmKansas City

$199

American Airlines

Mar 18

STL11:22 amLambert-St Louis

6h 50m

1 stop

EYW7:12 pmKey West

Mar 25

EYW6:49 pmKey West

5h 55m

1 stop

STL11:44 pmLambert-St Louis

$223

American Airlines

Feb 23

MCI7:05 amKansas City

3h 15m

MIA11:20 amMiami

Feb 26

MIA9:55 pmMiami

3h 44m

MCI12:39 amKansas City

$234

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Sat 2/21

3:49 pm-9:06 am

1 stop16h 17m

Key West

Thu 2/26

9:46 am-11:59 pm

1 stop15h 13m

$185

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Sat 2/21

3:49 pm-9:06 am

1 stop16h 17m

Key West

Thu 2/26

9:46 am-11:59 pm

1 stop15h 13m

$186

Kansas CityMiami

MCI - MIA

MCIMIA

Kansas City

Mon 3/9

5:08 pm-10:34 am

1 stop16h 26m

Miami

Fri 3/13

7:59 pm-7:55 pm

1 stop24h 56m

$190

Kansas CityMiami

MCI - MIA

MCIMIA

Kansas City

Mon 2/23

5:00 am-9:15 am

Nonstop3h 15m

Miami

Thu 2/26

8:05 pm-10:49 pm

Nonstop3h 44m

$199

Kansas CityMiami

MCI - MIA

MCIMIA

Kansas City

Sun 2/22

10:14 am-4:51 pm

1 stop5h 37m

Miami

Mon 2/23

5:05 am-9:53 am

1 stop5h 48m

$207

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Wed 3/18

11:22 am-7:12 pm

1 stop6h 50m

Key West

Wed 3/25

6:49 pm-11:44 pm

1 stop5h 55m

$223

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Thu 2/26

11:26 am-1:30 pm

1 stop25h 04m

Key West

Thu 3/5

2:25 pm-10:30 am

1 stop21h 05m

$251

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Thu 2/26

11:26 am-1:30 pm

1 stop25h 04m

Key West

Mon 3/2

2:25 pm-3:29 pm

2 stops26h 04m

$275

SpringfieldMiami

SGF - MIA

SGFMIA

Springfield-Branson

Wed 3/4

5:32 pm-12:53 am

1 stop6h 21m

Miami

Wed 3/11

12:01 pm-6:11 pm

1 stop7h 10m

$279

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Tue 4/28

10:48 am-5:23 pm

1 stop5h 35m

Key West

Sat 5/2

6:18 pm-11:50 pm

1 stop6h 32m

$283

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to Florida Keys

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from Missouri averaging around $333.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Missouri to Florida Keys is on a Sunday when prices can be found for as low as $520. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $588.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the evening. momondo users have found flights departing from Missouri to Florida Keys in the evening for as low as $432. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $567.

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

You are more likely to see cheaper flights to Florida Keys from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $398 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Missouri for as low as $325 on momondo.

Can stopping save me money on Missouri to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Missouri to Florida Keys.

Cheap Missouri to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Florida Keys

Fastest flight time	2h 40m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from Missouri to Florida Keys takes 2h 40m

Direct flights go from Missouri to Florida Keys every day.

There are 3 airports in Florida Keys. From Missouri there are direct flights to Miami (MIA).

Search flight deals

When did momondo last update prices for flights from Missouri to Florida Keys?
Prices for flights from Missouri to Florida Keys refresh daily.
How many operators does momondo search for flights from Missouri to Florida Keys?
The number of operators available for flights from Missouri to Florida Keys is 6 as of February 2026.
How old do you have to be to fly from Missouri to Florida Keys?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The required travel and health documents for your Florida Keys trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Florida Keys. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Missouri to Florida Keys?
momondo data reveals that the most frequently booked plane model on the route from Missouri to Florida Keys is Boeing 737 MAX 8, representing 25.87% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 17.21%, Boeing 737-800 at 6.01%, and Embraer 175 at 5.56%.

Best airlines flying from Missouri to Florida Keys

Compare and see reviews for airlines that fly from Missouri to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $189	Free Cancellation	Rating 7.9 8,151 reviews	Search Delta flights
American Airlines	PriceFrom $222	Free Cancellation	Rating 7.2 11,237 reviews	Search American Airlines flights
United Airlines	PriceFrom $245	Free Cancellation	Rating 7.4 9,240 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Florida Keys?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Florida Keys for you.

Can I find flights from Missouri to Florida Keys with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missouri to Florida Keys flights to just show those with flexible booking policies.

How can momondo help me find flights from Missouri to Florida Keys?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Florida Keys from Missouri.

I’m not ready to book a flight from Missouri to Florida Keys right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Missouri to Florida Keys flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Florida Keys

Flights to New Yorkfrom $49

Flights to Los Angelesfrom $46

Flights to Miamifrom $27

Flights to Chicagofrom $50

Flights to Orlandofrom $50

Flights to San Franciscofrom $54

Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $51

Flights to Bostonfrom $50

Flights to Atlantafrom $49

Flights to Dallasfrom $49

Flights to Seattlefrom $83

Cheap flights from Missouri to Florida Keys from $59

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Florida Keys departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Missouri to Florida Keys

Our best Frontier deals on Missouri to Florida Keys flight tickets

American Airlines flights from Missouri to Florida Keys

Our best American Airlines deals on Missouri to Florida Keys flight tickets

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

See travel insights to Florida Keys from

How to get the cheapest flight ticket from Missouri to Florida Keys

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from Missouri averaging around $333.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Missouri to Florida Keys is on a Sunday when prices can be found for as low as $520. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $588.

What is the cheapest time of day to depart on your flight to Florida Keys?

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

Can stopping save me money on Missouri to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Missouri to Florida Keys.

What is the cheapest airline that flies from Missouri to Florida Keys?

Frontier, Spirit Airlines, and United Airlines are the most popular carriers operating from Missouri to Florida Keys

What airlines fly to Florida Keys?

How many flights depart from Missouri to Florida Keys on average per week?

The number of flights available between Missouri and Florida Keys is 58 per week as of February 2026. The most frequent departure day is Wed, with 24% of weekly flights leaving on this day.

How long is the flight from Missouri to Florida Keys?

On average, it takes 12h 55m to fly from Missouri to Florida Keys if you fly out of St. Louis (the most popular airport in Missouri) and into Copenhagen (the most popular airport in Florida Keys). If you’re flying out of Kansas City and into Copenhagen, then the flight time is around 15h 43m.

Cheap Missouri to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Florida Keys

Fastest flight time

Direct flights

Airports in Florida Keys

When did momondo last update prices for flights from Missouri to Florida Keys?

How many operators does momondo search for flights from Missouri to Florida Keys?

How old do you have to be to fly from Missouri to Florida Keys?

What documentation or ID do you need to fly to Florida Keys?

What is the most popular plane model from Missouri to Florida Keys?

Best airlines flying from Missouri to Florida Keys

Compare and see reviews for airlines that fly from Missouri to Florida Keys with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Florida Keys?

Can I find flights from Missouri to Florida Keys with flexible booking policies on momondo?

How can momondo help me find flights from Missouri to Florida Keys?

I’m not ready to book a flight from Missouri to Florida Keys right now. Can momondo alert me if prices change?

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Florida Keys

Popular cities in Florida Keys

Popular flights according to clicks in the last 7 days on momondo

Missouri flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Florida Keys

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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