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Cheap flights from Florida Keys to Houston 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 Florida Keys to Houston departing on 4/14. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Florida Keys to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:54 pm - 11:29 pm
MIA
-
IAH
8h 35m
1 stop
Multiple Airlines Logo
9:40 pm - 1:09 am
IAH
-
MIA
2h 29mnonstop
$87Multiple Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
12:53 pm - 11:29 pm
MIA
-
IAH
11h 36m
1 stop
Multiple Airlines Logo
9:40 pm - 1:09 am
IAH
-
MIA
2h 29mnonstop
$88Multiple Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
3:54 pm - 11:29 pm
MIA
-
IAH
8h 35m
1 stop
Multiple Airlines Logo
9:40 pm - 1:09 am
IAH
-
MIA
2h 29mnonstop
$89Multiple Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
2:25 pm - 4:16 pm
MIA
-
IAH
2h 51mnonstop
Multiple Airlines Logo
9:17 pm - 12:44 am
IAH
-
MIA
2h 27mnonstop
$90Multiple Airlines
Wed, May 6 - Fri, May 8
Spirit Airlines Logo
6:30 am - 8:23 am
MIA
-
IAH
2h 53mnonstop
Spirit Airlines Logo
6:00 pm - 9:32 pm
IAH
-
MIA
2h 32mnonstop
$91Spirit Airlines
Tue, Apr 28 - Sat, May 2
Frontier Logo
5:35 pm - 7:55 pm
MIA
-
IAH
3h 20mnonstop
Frontier Logo
6:14 pm - 12:49 am
IAH
-
MIA
5h 35m
1 stop
$92Frontier
Thu, Apr 30 - Sat, May 2
Southwest Logo
6:15 am - 8:05 am
MIA
-
HOU
2h 50mnonstop
Southwest Logo
3:05 pm - 6:20 pm
HOU
-
MIA
2h 15mnonstop
$169Southwest
Tue, May 19 - Tue, May 26
Southwest Logo
12:35 pm - 8:55 pm
MIA
-
HOU
9h 20m
1 stop
Southwest Logo
3:05 pm - 6:20 pm
HOU
-
MIA
2h 15mnonstop
$179Southwest
Tue, May 19 - Tue, May 26
American Airlines Logo
2:01 pm - 8:36 pm
EYW
-
IAH
7h 35m
1 stop
American Airlines Logo
11:19 am - 7:10 pm
IAH
-
EYW
6h 51m
1 stop
$309American Airlines
Wed, May 20 - Wed, May 27
American Airlines Logo
4:20 pm - 11:59 pm
EYW
-
IAH
8h 39m
2 stops
American Airlines Logo
11:19 am - 7:10 pm
IAH
-
EYW
6h 51m
1 stop
$314American Airlines
Wed, May 20 - Wed, May 27

Southwest flights from Florida Keys to Houston

Our best Southwest deals on Florida Keys to Houston flight tickets
Southwest
May 19
MIA6:15 amMiami
2h 50m
HOU8:05 amHouston Hobby
May 26
HOU3:05 pmHouston Hobby
2h 15m
MIA6:20 pmMiami
$169
Southwest
May 19
MIA12:35 pmMiami
9h 20m
1 stop
HOU8:55 pmHouston Hobby
May 26
HOU3:05 pmHouston Hobby
2h 15m
MIA6:20 pmMiami
$179
Southwest
May 19
MIA7:00 amMiami
7h 40m
2 stops
HOU1:40 pmHouston Hobby
May 26
HOU3:05 pmHouston Hobby
2h 15m
MIA6:20 pmMiami
$184

Delta flights from Florida Keys to Houston

Our best Delta deals on Florida Keys to Houston flight tickets
Delta
May 27
MIA6:00 amMiami
7h 11m
1 stop
HOU12:11 pmHouston Hobby
Jun 9
HOU6:00 amHouston Hobby
6h 04m
1 stop
MIA1:04 pmMiami
$196
Delta
May 28
MIA8:05 amMiami
5h 06m
1 stop
HOU12:11 pmHouston Hobby
Jun 9
HOU6:00 amHouston Hobby
6h 04m
1 stop
MIA1:04 pmMiami
$206
Delta
May 6
MIA6:00 amMiami
4h 58m
1 stop
HOU9:58 amHouston Hobby
May 7
HOU1:06 pmHouston Hobby
7h 21m
1 stop
MIA9:27 pmMiami
$208

momondo Fare Finder

 
Customize your flight search to find flights from Florida Keys to Houston 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 April 10, 2026.
Use the filters below to find and compare flights from Florida Keys to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 4/30

3:54 pm-11:29 pm

1 stop8h 35m

Houston George Bush Intcntl

Sun 5/3

9:40 pm-1:09 am

Nonstop2h 29m

$87

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 4/30

12:53 pm-11:29 pm

1 stop11h 36m

Houston George Bush Intcntl

Sun 5/3

9:40 pm-1:09 am

Nonstop2h 29m

$88

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 4/30

3:54 pm-11:29 pm

1 stop8h 35m

Houston George Bush Intcntl

Sun 5/3

9:40 pm-1:09 am

Nonstop2h 29m

$89

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 5/6

2:25 pm-4:16 pm

Nonstop2h 51m

Houston George Bush Intcntl

Fri 5/8

9:17 pm-12:44 am

Nonstop2h 27m

$90

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 4/28

6:30 am-8:23 am

Nonstop2h 53m

Houston George Bush Intcntl

Sat 5/2

6:00 pm-9:32 pm

Nonstop2h 32m

$91

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 4/30

5:35 pm-7:55 pm

Nonstop3h 20m

Houston George Bush Intcntl

Sat 5/2

6:14 pm-12:49 am

1 stop5h 35m

$92
Quickest round-trip

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 5/19

6:15 am-8:05 am

Nonstop2h 50m

Houston Hobby

Tue 5/26

3:05 pm-6:20 pm

Nonstop2h 15m

$169

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 5/19

12:35 pm-8:55 pm

1 stop9h 20m

Houston Hobby

Tue 5/26

3:05 pm-6:20 pm

Nonstop2h 15m

$179

Key WestHouston

EYW - IAH

EYWIAH

Key West

Wed 5/20

2:01 pm-8:36 pm

1 stop7h 35m

Houston George Bush Intcntl

Wed 5/27

11:19 am-7:10 pm

1 stop6h 51m

$309

Key WestHouston

EYW - IAH

EYWIAH

Key West

Wed 5/20

4:20 pm-11:59 pm

2 stops8h 39m

Houston George Bush Intcntl

Wed 5/27

11:19 am-7:10 pm

1 stop6h 51m

$314

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 Houston from

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

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 Houston?

The month of October is, on average, the cheapest month to fly to Houston from Florida Keys, with most prices found around $137. The month of September is another great option to travel to Houston, with average flight prices from Florida Keys averaging around $146.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from Florida Keys is on a Friday. momondo users have found tickets for Friday departures for as low as $317. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Tuesday is $417.

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

Our data shows that the cheapest Florida Keys to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $175. Try not to purchase tickets in the morning because they tend to be around $344. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Florida Keys to Houston flight route?

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

How far in advance should I book a flight to Houston?

You are more likely to see cheaper flights to Houston from Florida Keys when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $178 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Florida Keys for as low as $134 on momondo.

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

There are 3 cabin classes available to choose from on Florida Keys to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Florida Keys to Houston flight deals and tips

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

Fastest flight time

2h 45m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from Florida Keys to Houston takes 2h 45m
Direct flights go from Florida Keys to Houston every day.
There are 2 airports in Houston. From Florida Keys there are direct flights to Houston George Bush Intcntl (IAH), Houston Hobby (HOU).
Search flight deals

Frequently asked questions about flying from Florida Keys to Houston

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

    Prices for flights from Florida Keys to Houston refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Florida Keys to Houston.

  • What documentation or ID do you need to fly to Houston?

    The travel and health documents required for your trip to Houston can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Florida Keys to Houston

Compare and see reviews for airlines that fly from Florida Keys to Houston with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $218Free CancellationRating
7.1
11,564 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Florida Keys to Houston. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Houston from Florida Keys on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Florida Keys to Houston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Houston from Florida Keys. 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.

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