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Cheap flights from Houston to Florida Keys from $44

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 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Houston to Florida Keys

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
8:30 am - 11:56 am
IAH
-
MIA
2h 26mnonstop
Spirit Airlines Logo
7:00 am - 3:19 pm
MIA
-
IAH
9h 19m1 stop
$71Spirit Airlines
Wed, Feb 4 - Mon, Feb 9
Spirit Airlines Logo
4:20 pm - 7:46 pm
IAH
-
MIA
2h 26mnonstop
Spirit Airlines Logo
8:51 pm - 10:56 pm
MIA
-
IAH
3h 05mnonstop
$72Spirit Airlines
Mon, Jan 19 - Mon, Jan 26
Frontier Logo
6:25 pm - 9:59 pm
IAH
-
MIA
2h 34mnonstop
Frontier Logo
6:30 am - 8:40 am
MIA
-
IAH
3h 10mnonstop
$73Frontier
Sat, Feb 28 - Sun, Mar 1
Multiple Airlines Logo
4:20 pm - 7:46 pm
IAH
-
MIA
2h 26mnonstop
Multiple Airlines Logo
6:00 am - 8:27 am
MIA
-
IAH
3h 27mnonstop
$75Multiple Airlines
Sat, Jan 10 - Sun, Jan 11
Multiple Airlines Logo
11:38 am - 11:14 pm
IAH
-
MIA
10h 36m1 stop
Multiple Airlines Logo
7:45 am - 9:58 am
MIA
-
IAH
3h 13mnonstop
$77Multiple Airlines
Sat, Jan 17 - Sun, Jan 18
Frontier Logo
2:32 pm - 6:01 pm
IAH
-
MIA
2h 29mnonstop
Frontier Logo
1:41 pm - 3:57 pm
MIA
-
IAH
3h 16mnonstop
$80Frontier
Thu, Jan 29 - Sun, Feb 1
Southwest Logo
4:15 pm - 10:00 pm
HOU
-
MIA
4h 45m1 stop
Southwest Logo
7:50 am - 2:30 pm
MIA
-
HOU
7h 40m1 stop
$162Southwest
Tue, Jan 20 - Sat, Jan 24
Southwest Logo
4:15 pm - 10:00 pm
HOU
-
MIA
4h 45m1 stop
Southwest Logo
7:50 am - 7:20 pm
MIA
-
HOU
12h 30m2 stops
$173Southwest
Tue, Jan 20 - Sat, Jan 24
Delta Logo
5:04 pm - 10:48 pm
HOU
-
MIA
4h 44m1 stop
Delta Logo
5:50 am - 10:21 am
MIA
-
HOU
5h 31m1 stop
$197Delta
Tue, Jan 20 - Sat, Jan 24
Delta Logo
5:04 pm - 10:48 pm
HOU
-
MIA
4h 44m1 stop
Delta Logo
6:00 am - 10:01 am
MIA
-
HOU
5h 01m1 stop
$198Delta
Mon, Feb 9 - Sat, Feb 21

Spirit Airlines flights from Houston to Florida Keys

Our best Spirit Airlines deals on Houston to Florida Keys flight tickets
Spirit Airlines
Feb 4
IAH8:30 amHouston George Bush Intcntl
2h 26m
MIA11:56 amMiami
Feb 9
MIA7:00 amMiami
9h 19m
1 stop
IAH3:19 pmHouston George Bush Intcntl
$71
Find similar
Spirit Airlines
Jan 19
IAH4:20 pmHouston George Bush Intcntl
2h 26m
MIA7:46 pmMiami
Jan 26
MIA8:51 pmMiami
3h 05m
IAH10:56 pmHouston George Bush Intcntl
$72
Find similar
Spirit Airlines
Jan 9
IAH4:20 pmHouston George Bush Intcntl
2h 26m
MIA7:46 pmMiami
Jan 17
MIA8:51 pmMiami
3h 05m
IAH10:56 pmHouston George Bush Intcntl
$74
Find similar

Southwest flights from Houston to Florida Keys

Our best Southwest deals on Houston to Florida Keys flight tickets
Southwest
Jan 20
HOU4:15 pmHouston Hobby
4h 45m
1 stop
MIA10:00 pmMiami
Jan 24
MIA7:50 amMiami
7h 40m
1 stop
HOU2:30 pmHouston Hobby
$162
Find similar
Southwest
Jan 20
HOU4:15 pmHouston Hobby
4h 45m
1 stop
MIA10:00 pmMiami
Jan 24
MIA7:50 amMiami
12h 30m
2 stops
HOU7:20 pmHouston Hobby
$173
Find similar
Southwest
Jan 21
HOU2:15 pmHouston Hobby
6h 15m
1 stop
MIA9:30 pmMiami
Jan 28
MIA7:15 amMiami
9h 00m
1 stop
HOU3:15 pmHouston Hobby
$177
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 December 23, 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

Wed 2/4

8:30 am-11:56 am

Nonstop2h 26m

Miami

Mon 2/9

7:00 am-3:19 pm

1 stop9h 19m

$71

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Mon 1/19

4:20 pm-7:46 pm

Nonstop2h 26m

Miami

Mon 1/26

8:51 pm-10:56 pm

Nonstop3h 05m

$72

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Sat 2/28

6:25 pm-9:59 pm

Nonstop2h 34m

Miami

Sun 3/1

6:30 am-8:40 am

Nonstop3h 10m

$73

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Sat 1/10

4:20 pm-7:46 pm

Nonstop2h 26m

Miami

Sun 1/11

6:00 am-8:27 am

Nonstop3h 27m

$75

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Sat 1/17

11:38 am-11:14 pm

1 stop10h 36m

Miami

Sun 1/18

7:45 am-9:58 am

Nonstop3h 13m

$77

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Thu 1/29

2:32 pm-6:01 pm

Nonstop2h 29m

Miami

Sun 2/1

1:41 pm-3:57 pm

Nonstop3h 16m

$80

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Tue 1/20

4:15 pm-10:00 pm

1 stop4h 45m

Miami

Sat 1/24

7:50 am-2:30 pm

1 stop7h 40m

$162

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Tue 1/20

4:15 pm-10:00 pm

1 stop4h 45m

Miami

Sat 1/24

7:50 am-7:20 pm

2 stops12h 30m

$173

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Tue 1/20

5:04 pm-10:48 pm

1 stop4h 44m

Miami

Sat 1/24

5:50 am-10:21 am

1 stop5h 31m

$197

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Mon 2/9

5:04 pm-10:48 pm

1 stop4h 44m

Miami

Sat 2/21

6:00 am-10:01 am

1 stop5h 01m

$198

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 $142.

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 Tuesday, with ticket prices averaging around $380.

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 $167. 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 $518.

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 $190 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 $138 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 20m

Direct flights

Every day

Airports in Florida Keys

3 airports
The fastest flight from Houston to Florida Keys takes 2h 20m
Direct flights go from Houston to Florida Keys every day.
There are 3 airports in Florida Keys. From Houston there are direct flights to 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
9,105 reviews
Search United Airlines flights
DeltaPriceFrom $220Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,054 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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