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$44+ Cheap flights from Key Largo, FL to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HOU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Key Largo to Houston are usually found in October or September, booked 62 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap flight deals from Key Largo to Houston

Keep the following information in mind while searching for Key Largo to Houston flight deals. Data was last updated February 20, 2025.

Round-trip from

$79
(Frontier)

One-way from

$44
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$159
From Key Largo to Houston
Search Deals
One-way flight from Key Largo to Houston
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Key Largo to Houston

Cheapest flights from Key Largo to Houston
Explore the most affordable flight options available from Key Largo to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This eDestinos deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/149:28 amMIA - IAH
Nonstop3h 08mSpirit Airlines
Tue 3/182:38 pmIAH - MIA
Nonstop2h 27mSpirit Airlines
Deal found 2/20$80
This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/107:10 pmMIA - IAH
Nonstop3h 13mMultiple Airlines
Mon 3/178:47 pmIAH - MIA
Nonstop2h 26mMultiple Airlines
Deal found 2/20$81
This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/127:42 amMIA - IAH
Nonstop3h 05mFrontier
Sat 3/155:44 pmIAH - MIA
1 stop5h 41mFrontier
Deal found 2/20$85
This Mytrip deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:25 amMIA - HOU
1 stop28h 07mFrontier
Sat 4/1912:27 pmHOU - MIA
1 stop15h 32mFrontier
Deal found 2/19$116
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:00 amMIA - IAH
1 stop7h 46mDelta
Tue 5/62:51 pmIAH - MIA
1 stop5h 47mDelta
Deal found 2/20$199
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/114:47 pmMIA - HOU
1 stop7h 19mDelta
Wed 3/1210:41 amHOU - MIA
1 stop5h 21mDelta
Deal found 2/20$217
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/33:45 pmMIA - HOU
Nonstop2h 55mSouthwest
Sun 4/68:50 pmHOU - MIA
Nonstop2h 15mSouthwest
Deal found 2/20$222
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/38:04 pmMIA - IAH
Nonstop3h 21mAmerican Airlines
Sun 4/65:27 amIAH - MIA
Nonstop2h 27mAmerican Airlines
Deal found 2/20$223
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/158:20 amMIA - HOU
1 stop7h 48mAmerican Airlines
Mon 3/176:33 pmHOU - MIA
1 stop5h 16mAmerican Airlines
Deal found 2/19$282

Find flights from Key Largo to Houston within your budget

Customize your flight search to find flights from Key Largo 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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Key Largo

Fly to

Houston

Route

Depart

Return

Price

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 3/14

9:28 am-11:36 am

Nonstop3h 08m

Houston George Bush Intcntl

Tue 3/18

2:38 pm-6:05 pm

Nonstop2h 27m

$80

MiamiHouston

MIA - IAH

MIAIAH

Miami

Mon 3/10

7:10 pm-9:23 pm

Nonstop3h 13m

Houston George Bush Intcntl

Mon 3/17

8:47 pm-12:13 am

Nonstop2h 26m

$81

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 3/12

7:42 am-9:47 am

Nonstop3h 05m

Houston George Bush Intcntl

Sat 3/15

5:44 pm-12:25 am

1 stop5h 41m

$85

MiamiHouston

MIA - HOU

MIAHOU

Miami

Thu 4/17

6:25 am-9:32 am

1 stop28h 07m

Houston Hobby

Sat 4/19

12:27 pm-4:59 am

1 stop15h 32m

$116

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 4/30

7:00 am-1:46 pm

1 stop7h 46m

Houston George Bush Intcntl

Tue 5/6

2:51 pm-9:38 pm

1 stop5h 47m

$199

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 3/11

4:47 pm-11:06 pm

1 stop7h 19m

Houston Hobby

Wed 3/12

10:41 am-5:02 pm

1 stop5h 21m

$217

MiamiHouston

MIA - HOU

MIAHOU

Miami

Tue 3/25

4:20 pm-6:15 pm

Nonstop2h 55m

Houston Hobby

Wed 3/26

6:30 am-5:05 pm

1 stop9h 35m

$218

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 4/3

10:18 pm-12:18 am

Nonstop3h 00m

Houston George Bush Intcntl

Sun 4/6

5:27 am-8:54 am

Nonstop2h 27m

$223

MiamiHouston

MIA - HOU

MIAHOU

Miami

Sat 3/15

8:20 am-3:08 pm

1 stop7h 48m

Houston Hobby

Mon 3/17

6:33 pm-12:49 am

1 stop5h 16m

$282

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 3/19

7:25 pm-9:38 pm

Nonstop3h 13m

$47

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 21 results
1
2
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Best time to book a flight from Key Largo to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Key Largo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Key Largo to Houston

Get recent, data-driven insights about flights from Key Largo to Houston including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Houston. Price data was last updated on February 14, 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Houston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo to Houston?

Currently, September is the cheapest month in which you can book a flight from Key Largo to Houston (average of $230). Flying from Key Largo to Houston in March is currently the most expensive (average of $334). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to HOU?

Find hourly flight availability from Key Largo to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Houston as you normally would.

What is the cheapest day to fly from Key Largo to Houston?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Houston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Houston flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Key Largo to Houston to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Key Largo to Houston one-way?

    One-way options have recently been found by users for as low as $44 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $47 and Southwest from $90 one-way.

  • What are the cheapest flights from Key Largo to Houston?

    While on average a flight from Key Largo to Houston is generally $249, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Miami - Houston Hobby), you can expect to pay $46 for that flight.

  • Can I find deals for flights from Key Largo to Houston that include hotel bookings?

    Yes. In addition to deals on Key Largo to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to Houston.

  • Can I find deals for business class flights from Key Largo to Houston?

    Yes. Cheapflights offers flight deals from Key Largo to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Key Largo to Houston?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to Houston (average of $230). Flying from Key Largo to Houston in March is currently the most expensive (average of $334). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 6 airlines flying from Key Largo to Houston

Discover the top 6 airlines that operate flights from Key Largo to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$129FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$71Average$163FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$151Average$313FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$156Average$321FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$158Average$321FlexibilityNo cancel feeOn-time63%
DeltaCheapest$227Average$416FlexibilityNo cancel feeOn-timeN/A
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