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Cheap flights from Houston to Florida Keys from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Florida Keys departing on 11/22. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:37 pm - 11:08 pmIAH-MIA
2h 31mnonstop
Frontier Logo
7:10 am - 9:37 amMIA-IAH
3h 27mnonstop
$74Frontier
Find Deal
vie., nov. 28 - mar., dic. 23
Frontier Logo
6:00 am - 3:39 pmIAH-MIA
8h 39m1 stop
Frontier Logo
7:10 am - 9:37 amMIA-IAH
3h 27mnonstop
$75Frontier
Find Deal
sáb., dic. 6 - dom., dic. 21
Spirit Airlines Logo
5:25 pm - 8:54 pmIAH-MIA
2h 29mnonstop
Spirit Airlines Logo
5:05 am - 7:04 amMIA-IAH
2h 59mnonstop
$79Spirit Airlines
Find Deal
sáb., dic. 6 - dom., dic. 7
Spirit Airlines Logo
5:00 am - 8:23 amIAH-MIA
2h 23mnonstop
Spirit Airlines Logo
5:05 am - 7:04 amMIA-IAH
2h 59mnonstop
$80Spirit Airlines
Find Deal
jue., dic. 4 - jue., dic. 11
Southwest Logo
8:05 pm - 11:25 pmHOU-MIA
2h 20mnonstop
Southwest Logo
4:55 pm - 10:10 pmMIA-HOU
6h 15m1 stop
$163Southwest
Find Deal
dom., dic. 14 - vie., ene. 9
Southwest Logo
7:25 am - 1:35 pmHOU-MIA
5h 10m1 stop
Southwest Logo
5:25 pm - 7:30 pmMIA-HOU
3h 05mnonstop
$167Southwest
Find Deal
mié., feb. 4 - sáb., feb. 7
Delta Logo
6:47 pm - 12:46 amHOU-MIA
4h 59m1 stop
Delta Logo
6:30 pm - 10:48 pmMIA-HOU
5h 18m1 stop
$197Delta
Find Deal
jue., dic. 4 - jue., dic. 11
Delta Logo
6:00 am - 1:06 pmHOU-MIA
6h 06m1 stop
Delta Logo
12:36 pm - 5:52 pmMIA-HOU
6h 16m1 stop
$198Delta
Find Deal
mar., dic. 2 - mar., dic. 9
American Airlines Logo
11:07 am - 7:35 pmIAH-EYW
7h 28m2 stops
American Airlines Logo
6:33 pm - 12:09 amEYW-IAH
6h 36m1 stop
$254American Airlines
Find Deal
mié., dic. 3 - mié., dic. 10
American Airlines Logo
11:07 am - 7:35 pmIAH-EYW
7h 28m2 stops
American Airlines Logo
7:00 am - 4:22 pmEYW-IAH
10h 22m2 stops
$259American Airlines
Find Deal
mié., dic. 3 - mié., dic. 10

Frontier flights from Houston to Florida Keys

Our best Frontier deals on Houston to Florida Keys flight tickets
Frontier
Nov 28
IAH7:37 pmHouston George Bush Intcntl
2h 31m
MIA11:08 pmMiami
Dec 23
MIA7:10 amMiami
3h 27m
IAH9:37 amHouston George Bush Intcntl
$74
Find similar
Frontier
Dec 6
IAH6:00 amHouston George Bush Intcntl
8h 39m
1 stop
MIA3:39 pmMiami
Dec 21
MIA7:10 amMiami
3h 27m
IAH9:37 amHouston George Bush Intcntl
$75
Find similar
Frontier
Nov 14
IAH11:02 amHouston George Bush Intcntl
2h 28m
MIA2:30 pmMiami
Nov 17
MIA8:00 amMiami
3h 07m
IAH10:07 amHouston George Bush Intcntl
$77
Find similar

Spirit Airlines flights from Houston to Florida Keys

Our best Spirit Airlines deals on Houston to Florida Keys flight tickets
Spirit Airlines
Dec 6
IAH5:25 pmHouston George Bush Intcntl
2h 29m
MIA8:54 pmMiami
Dec 7
MIA5:05 amMiami
2h 59m
IAH7:04 amHouston George Bush Intcntl
$79
Find similar
Spirit Airlines
Dec 4
IAH5:00 amHouston George Bush Intcntl
2h 23m
MIA8:23 amMiami
Dec 11
MIA5:05 amMiami
2h 59m
IAH7:04 amHouston George Bush Intcntl
$80
Find similar
Spirit Airlines
Nov 29
IAH8:10 pmHouston George Bush Intcntl
2h 33m
MIA11:43 pmMiami
Dec 9
MIA2:10 pmMiami
2h 58m
IAH4:08 pmHouston George Bush Intcntl
$81
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston 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, momondo users made 832,500 searches. Data last updated noviembre 6, 2025.
Use the filters below to find and compare flights from Houston to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

vie. 11/28

7:37 pm-11:08 pm

Nonstop2h 31m

Miami

mar. 12/23

7:10 am-9:37 am

Nonstop3h 27m

$74

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

sáb. 12/6

6:00 am-3:39 pm

1 stop8h 39m

Miami

dom. 12/21

7:10 am-9:37 am

Nonstop3h 27m

$75

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

sáb. 12/6

5:25 pm-8:54 pm

Nonstop2h 29m

Miami

dom. 12/7

5:05 am-7:04 am

Nonstop2h 59m

$79

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

jue. 12/4

5:00 am-8:23 am

Nonstop2h 23m

Miami

jue. 12/11

5:05 am-7:04 am

Nonstop2h 59m

$80

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

dom. 12/14

8:05 pm-11:25 pm

Nonstop2h 20m

Miami

vie. 1/9

4:55 pm-10:10 pm

1 stop6h 15m

$163

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

mié. 2/4

7:25 am-1:35 pm

1 stop5h 10m

Miami

sáb. 2/7

5:25 pm-7:30 pm

Nonstop3h 05m

$167

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

jue. 12/4

6:47 pm-12:46 am

1 stop4h 59m

Miami

jue. 12/11

6:30 pm-10:48 pm

1 stop5h 18m

$197

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

mar. 12/2

6:00 am-1:06 pm

1 stop6h 06m

Miami

mar. 12/9

12:36 pm-5:52 pm

1 stop6h 16m

$198

HoustonKey West

IAH - EYW

IAHEYW

Houston George Bush Intcntl

mié. 12/3

11:07 am-7:35 pm

2 stops7h 28m

Key West

mié. 12/10

6:33 pm-12:09 am

1 stop6h 36m

$254

HoustonKey West

IAH - EYW

IAHEYW

Houston George Bush Intcntl

mié. 12/3

11:07 am-7:35 pm

2 stops7h 28m

Key West

mié. 12/10

7:00 am-4:22 pm

2 stops10h 22m

$259

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Florida Keys from

How to get the cheapest flight ticket from Houston 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

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 Houston averaging around $153.

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

The cheapest day to depart from Houston to Florida Keys is on a Sunday when prices can be found for as low as $204. The most expensive day to fly to Florida Keys is Thursday, with ticket prices averaging around $460.

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 Houston to Florida Keys in the evening for as low as $176. 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 $520.

What is the cheapest Houston to Florida Keys flight route?

Fly from Houston George Bush Intcntl to Key West for the best Houston - Florida Keys flight prices

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

You are more likely to see cheaper flights to Florida Keys from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $196 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Houston for as low as $139 on momondo.

What cabin class options are available on Houston to Florida Keys flights?

There are 2 cabin classes available to choose from on Houston to Florida Keys flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to Florida Keys flight deals and tips

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

Fastest flight time

2h 15m

Direct flights

Every day

Airports in Florida Keys

1 airport
The fastest flight from Houston to Florida Keys takes 2h 15m
Direct flights go from Houston to Florida Keys every day.
There is 1 airport near Florida Keys: Miami (MIA)
Search flight deals

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

    Prices for flights from Houston to Florida Keys were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston 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.

Best airlines flying from Houston to Florida Keys

Compare and see reviews for airlines that fly from Houston to Florida Keys with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
DeltaPriceFrom $220Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $230Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to Florida Keys. momondo saves you time and could save you money on your trip.

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

Flights from Houston to Florida Keys with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Florida Keys from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Florida Keys from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Florida Keys trip

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