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$51+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HOU
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Houston are usually found in October or September, booked 39 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 April 24, 2025.

Round-trip from

$86
(Cheapflightsfares)

One-way from

$52
(FlightHub)

Popular in

July

Cheapest in

October

Average price

$197
From Key Largo to Houston
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One-way flight from Key Largo to Houston
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Highest demand for flights based on searches. 13% potential increase in price ($30 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 April 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 April 24, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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.
Thu 5/225:15 pmMIA - IAH
Nonstop3h 13mFrontier
Sun 5/258:13 pmIAH - MIA
Nonstop2h 30mFrontier
Deal found 4/23$87
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 5/217:56 pmMIA - IAH
Nonstop2h 53mSpirit Airlines
Wed 5/283:08 pmIAH - MIA
Nonstop2h 37mSpirit Airlines
Deal found 4/21$91
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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.
Tue 5/2010:29 amMIA - IAH
Nonstop2h 47mMultiple Airlines
Sun 5/258:13 pmIAH - MIA
Nonstop2h 30mMultiple Airlines
Deal found 4/23$96
This Southwest deal was found by Cheapflights users on 4/23. 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.
Wed 7/94:30 pmMIA - HOU
Nonstop2h 45mSouthwest
Sat 7/127:55 pmHOU - MIA
Nonstop2h 25mSouthwest
Deal found 4/23$184
This Delta deal was found by Cheapflights users on 4/22. 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 9/168:05 amMIA - HOU
1 stop8h 01mDelta
Sat 9/201:00 pmHOU - MIA
1 stop4h 48mDelta
Deal found 4/22$197
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 6/310:04 amMIA - IAH
1 stop7h 26mAmerican Airlines
Tue 6/36:29 pmIAH - MIA
1 stop5h 09mAmerican Airlines
Deal found 4/22$205
This Delta deal was found by Cheapflights users on 4/22. 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.
Sat 5/318:40 amMIA - IAH
1 stop7h 43mDelta
Tue 6/36:00 amIAH - MIA
1 stop6h 15mDelta
Deal found 4/22$207
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 8/512:04 pmMIA - HOU
1 stop6h 55mAmerican Airlines
Wed 8/1310:18 amHOU - MIA
1 stop5h 09mAmerican Airlines
Deal found 4/23$231

Cheapflights Fare Finder

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 April 24, 2025.
Use the filters below to find and compare flights from Key Largo to Houston that are best for you.

Fly from

Key Largo

Fly to

Houston

Route

Depart

Return

Price

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 5/22

5:15 pm-7:28 pm

Nonstop3h 13m

Houston George Bush Intcntl

Sun 5/25

8:13 pm-11:43 pm

Nonstop2h 30m

$87

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 5/21

7:56 pm-9:49 pm

Nonstop2h 53m

Houston George Bush Intcntl

Wed 5/28

3:08 pm-6:45 pm

Nonstop2h 37m

$91

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 5/20

10:29 am-12:16 pm

Nonstop2h 47m

Houston George Bush Intcntl

Sun 5/25

8:13 pm-11:43 pm

Nonstop2h 30m

$96

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 7/9

4:30 pm-6:15 pm

Nonstop2h 45m

Houston Hobby

Sat 7/12

7:55 pm-11:20 pm

Nonstop2h 25m

$184

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 6/3

10:04 am-4:30 pm

1 stop7h 26m

Houston George Bush Intcntl

Tue 6/3

6:29 pm-12:38 am

1 stop5h 09m

$205

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 5/31

8:40 am-3:23 pm

1 stop7h 43m

Houston George Bush Intcntl

Wed 6/4

5:06 pm-12:37 am

1 stop6h 31m

$207

MiamiHouston

MIA - HOU

MIAHOU

Miami

Sat 5/17

5:35 am-12:17 pm

1 stop7h 42m

Houston Hobby

Tue 5/20

10:22 am-6:25 pm

1 stop7h 03m

$228

MiamiHouston

MIA - HOU

MIAHOU

Miami

Wed 6/11

5:18 am-9:43 am

1 stop5h 25m

Houston Hobby

Wed 7/2

10:13 am-6:28 pm

1 stop7h 15m

$232

MiamiHouston

MIA - HOU

MIAHOU

Miami

Thu 6/19

3:00 pm-5:36 pm

2 stops27h 36m

Houston Hobby

Thu 7/3

6:00 pm-5:45 am

3 stops34h 45m

$536

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 5/9

7:12 am-9:25 am

Nonstop3h 13m

$51

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 21 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Key Largo to Houston

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 April 18, 2025.

Booking 39 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 April 24, 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 Wednesday 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 April 24, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 $52 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $57 and United Airlines from $86 one-way.

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

    While on average a flight from Key Largo to Houston is generally $370, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Miami - Houston Hobby), you can expect to pay $89 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$129FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$75Average$164FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$146Average$311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$157Average$310FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$165Average$318FlexibilityNo cancel feeOn-time63%
DeltaCheapest$214Average$416FlexibilityNo cancel feeOn-timeN/A

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