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Cheap flights from Houston to Florida Keys from $48

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 11/6. 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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Find the cheapest flights from Houston to Florida Keys

Cheap round-trip flights

Frontier Logo
10:54 am - 2:36 pmIAH-MIA
2h 42mnonstop
Frontier Logo
8:00 am - 9:54 amMIA-IAH
2h 54mnonstop
$71Frontier
Find Deal
Sat, Oct 4 - Mon, Oct 6
Logo
10:54 am - 2:36 pmIAH-MIA
2h 42mnonstop
Logo
7:23 pm - 9:17 pmMIA-IAH
2h 54mnonstop
$72
Find Deal
Sat, Oct 4 - Wed, Oct 8
Spirit Airlines Logo
2:48 pm - 6:11 pmIAH-MIA
2h 23mnonstop
Spirit Airlines Logo
7:23 pm - 9:17 pmMIA-IAH
2h 54mnonstop
$73Spirit Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
Spirit Airlines Logo
2:48 pm - 6:11 pmIAH-MIA
2h 23mnonstop
Spirit Airlines Logo
7:23 pm - 9:17 pmMIA-IAH
2h 54mnonstop
$74Spirit Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 16
Southwest Logo
7:55 pm - 11:15 pmHOU-MIA
2h 20mnonstop
Southwest Logo
7:30 pm - 9:20 pmMIA-HOU
2h 50mnonstop
$127Southwest
Find Deal
Fri, Oct 24 - Thu, Oct 30
Southwest Logo
7:55 pm - 11:15 pmHOU-MIA
2h 20mnonstop
Southwest Logo
6:55 am - 10:25 amMIA-HOU
4h 30m1 stop
$140Southwest
Find Deal
Fri, Oct 17 - Wed, Oct 29
American Airlines Logo
9:07 am - 4:16 pmHOU-EYW
6h 09m1 stop
American Airlines Logo
2:39 pm - 8:20 pmEYW-HOU
6h 41m1 stop
$249American Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
American Airlines Logo
5:35 am - 1:29 pmIAH-EYW
6h 54m1 stop
American Airlines Logo
2:32 pm - 8:08 pmEYW-IAH
6h 36m1 stop
$249American Airlines
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Sun, Oct 5 - Wed, Oct 8
United Airlines Logo
9:54 pm - 3:00 pmIAH-EYW
16h 06m1 stop
United Airlines Logo
4:53 pm - 7:06 pmEYW-IAH
3h 13mnonstop
$410United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
9:54 pm - 3:00 pmIAH-EYW
16h 06m1 stop
United Airlines Logo
4:53 pm - 7:06 pmEYW-IAH
3h 13mnonstop
$442United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7

Spirit Airlines flights from Houston to Florida Keys

Our best Spirit Airlines deals on Houston to Florida Keys flight tickets
Spirit Airlines
Oct 7
IAH2:48 pmHouston George Bush Intcntl
2h 23m
MIA6:11 pmMiami
Oct 11
MIA7:23 pmMiami
2h 54m
IAH9:17 pmHouston George Bush Intcntl
$73
Find similar
Spirit Airlines
Oct 14
IAH2:48 pmHouston George Bush Intcntl
2h 23m
MIA6:11 pmMiami
Oct 16
MIA7:23 pmMiami
2h 54m
IAH9:17 pmHouston George Bush Intcntl
$74
Find similar
Spirit Airlines
Sep 29
IAH2:27 pmHouston George Bush Intcntl
2h 37m
MIA6:04 pmMiami
Oct 3
MIA3:50 pmMiami
3h 04m
IAH5:54 pmHouston George Bush Intcntl
$76
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Southwest flights from Houston to Florida Keys

Our best Southwest deals on Houston to Florida Keys flight tickets
Southwest
Oct 24
HOU7:55 pmHouston Hobby
2h 20m
MIA11:15 pmMiami
Oct 30
MIA7:30 pmMiami
2h 50m
HOU9:20 pmHouston Hobby
$127
Find similar
Southwest
Oct 17
HOU7:55 pmHouston Hobby
2h 20m
MIA11:15 pmMiami
Oct 29
MIA6:55 amMiami
4h 30m
1 stop
HOU10:25 amHouston Hobby
$140
Find similar
Southwest
Oct 23
HOU7:55 pmHouston Hobby
2h 20m
MIA11:15 pmMiami
Oct 27
MIA6:50 amMiami
6h 55m
1 stop
HOU12:45 pmHouston Hobby
$152
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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 September 15, 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

Sat 10/4

10:54 am-2:36 pm

Nonstop2h 42m

Miami

Mon 10/6

8:00 am-9:54 am

Nonstop2h 54m

$71

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Sat 10/4

10:54 am-2:36 pm

Nonstop2h 42m

Miami

Wed 10/8

7:23 pm-9:17 pm

Nonstop2h 54m

$72

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Tue 10/7

2:48 pm-6:11 pm

Nonstop2h 23m

Miami

Sat 10/11

7:23 pm-9:17 pm

Nonstop2h 54m

$73

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Tue 10/14

2:48 pm-6:11 pm

Nonstop2h 23m

Miami

Thu 10/16

7:23 pm-9:17 pm

Nonstop2h 54m

$74

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Fri 10/24

7:55 pm-11:15 pm

Nonstop2h 20m

Miami

Thu 10/30

7:30 pm-9:20 pm

Nonstop2h 50m

$127

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Fri 10/17

7:55 pm-11:15 pm

Nonstop2h 20m

Miami

Wed 10/29

6:55 am-10:25 am

1 stop4h 30m

$140

HoustonKey West

HOU - EYW

HOUEYW

Houston Hobby

Sat 11/15

9:07 am-4:16 pm

1 stop6h 09m

Key West

Wed 11/19

2:39 pm-8:20 pm

1 stop6h 41m

$249

HoustonKey West

IAH - EYW

IAHEYW

Houston George Bush Intcntl

Sun 10/5

5:35 am-1:29 pm

1 stop6h 54m

Key West

Wed 10/8

2:32 pm-8:08 pm

1 stop6h 36m

$249

HoustonKey West

IAH - EYW

IAHEYW

Houston George Bush Intcntl

Tue 3/3

9:54 pm-3:00 pm

1 stop16h 06m

Key West

Sat 3/7

4:53 pm-7:06 pm

Nonstop3h 13m

$410

HoustonKey West

IAH - EYW

IAHEYW

Houston George Bush Intcntl

Tue 3/3

9:54 pm-3:00 pm

1 stop16h 06m

Key West

Sat 3/7

4:53 pm-7:06 pm

Nonstop3h 13m

$442

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 September is another great option to travel to Florida Keys, with average flight prices from Houston averaging around $172.

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 $177. 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 $544.

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 $203 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 $147 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
8,931 reviews
Search United Airlines flights
DeltaPriceFrom $220Free CancellationRating
7.9
7,956 reviews
Search Delta flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
10,000 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

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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