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Key Largo

$42+ Cheap flights from Houston to Key Largo, FL

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — MIA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Key Largo are usually found in August or May, booked 44 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Houston to Key Largo

Keep the following information in mind while searching for Houston to Key Largo flight deals. Data was last updated April 29, 2025.

Round-trip from

$86
(Cheapflightsfares)

One-way from

$42
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$221
From Houston to Key Largo
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One-way flight from Houston to Key Largo
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Highest demand for flights based on searches. 11% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 Houston to Key Largo

Cheapest flights from Houston to Key Largo
Explore the most affordable flight options available from Houston to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
Sun 6/297:58 pmIAH - MIA
Nonstop2h 39mFrontier
Thu 7/35:07 pmMIA - IAH
Nonstop2h 56mFrontier
Deal found 4/28$86
This eDestinos deal was found by Cheapflights users on 4/29. 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.
Wed 5/73:08 pmIAH - MIA
Nonstop2h 37mSpirit Airlines
Thu 5/299:07 pmMIA - IAH
Nonstop2h 54mSpirit Airlines
Deal found 4/29$87
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/46:00 amIAH - MIA
Nonstop2h 34mMultiple Airlines
Thu 6/55:20 pmMIA - IAH
Nonstop2h 56mMultiple Airlines
Deal found 4/29$89
This Southwest deal was found by Cheapflights users on 4/29. 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.
Sat 8/96:00 pmHOU - MIA
Nonstop2h 25mSouthwest
Sat 8/168:05 amMIA - HOU
Nonstop2h 40mSouthwest
Deal found 4/29$171
This Delta deal was found by Cheapflights users on 4/29. 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 5/206:00 amIAH - MIA
1 stop6h 15mDelta
Wed 6/42:26 pmMIA - IAH
1 stop6h 54mDelta
Deal found 4/29$208
This Delta deal was found by Cheapflights users on 4/29. 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 7/306:00 amHOU - MIA
1 stop6h 07mDelta
Thu 8/710:33 amMIA - HOU
1 stop5h 48mDelta
Deal found 4/29$208
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 6/46:31 pmHOU - MIA
1 stop5h 07mAmerican Airlines
Wed 6/115:18 amMIA - HOU
1 stop5h 25mAmerican Airlines
Deal found 4/28$211
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/276:40 amIAH - MIA
1 stop5h 27mAmerican Airlines
Tue 6/311:45 amMIA - IAH
1 stop5h 45mAmerican Airlines
Deal found 4/29$232
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Fri 6/206:30 pmHOU - MIA
1 stop15h 40mSun Country Air
Sun 6/222:08 pmMIA - HOU
1 stop27h 52mSun Country Air
Deal found 4/28$361

Cheapflights Fare Finder

Customize your flight search to find flights from Houston to Key Largo 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 29, 2025.
Use the filters below to find and compare flights from Houston to Key Largo that are best for you.

Fly from

Houston

Fly to

Key Largo

Route

Depart

Return

Price

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Sun 6/29

7:58 pm-11:37 pm

Nonstop2h 39m

Miami

Thu 7/3

5:07 pm-7:03 pm

Nonstop2h 56m

$86

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Wed 5/21

6:00 am-9:34 am

Nonstop2h 34m

Miami

Wed 6/4

10:29 am-12:16 pm

Nonstop2h 47m

$87

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Wed 6/4

6:00 am-9:34 am

Nonstop2h 34m

Miami

Thu 6/5

5:20 pm-7:16 pm

Nonstop2h 56m

$89

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Mon 6/23

8:25 pm-11:55 pm

Nonstop2h 30m

Miami

Fri 6/27

7:15 am-8:55 am

Nonstop2h 40m

$185

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Tue 5/20

6:00 am-1:15 pm

1 stop6h 15m

Miami

Wed 6/4

2:26 pm-8:20 pm

1 stop6h 54m

$208

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Wed 6/4

6:31 pm-12:38 am

1 stop5h 07m

Miami

Wed 6/11

5:18 am-9:43 am

1 stop5h 25m

$211

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Sat 7/26

12:50 pm-9:18 pm

1 stop7h 28m

Miami

Sat 8/2

5:30 am-12:01 pm

1 stop7h 31m

$217

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

Tue 5/27

6:40 am-1:07 pm

1 stop5h 27m

Miami

Tue 6/3

11:45 am-4:30 pm

1 stop5h 45m

$232

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Fri 6/20

6:30 pm-11:10 am

1 stop15h 40m

Miami

Sun 6/22

2:08 pm-5:00 pm

1 stop27h 52m

$361

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

Thu 6/19

6:30 pm-11:52 pm

2 stops28h 22m

Miami

Sun 6/22

2:08 pm-5:00 pm

1 stop27h 52m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 23 results
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Best time to book a flight from Houston to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Houston 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 Houston to Key Largo

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

Use this chart to determine the optimal time to book a round-trip flight from Houston to Key Largo. Price data was last updated on April 25, 2025.

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Key Largo. 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 Houston to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Houston to Key Largo (average of $228). Flying from Houston to Key Largo in March is currently the most expensive (average of $289). 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 HOU to KE9?

Find hourly flight availability from Houston to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

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

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

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

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

Rainfall in Key Largo by month

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

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

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

If weather is an important factor for your trip to Key Largo, 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 68.0 F).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Houston to Key Largo by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Houston to Key Largo. 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 Houston to Key Largo one-way?

    The cheapest airlines for a one-way flight from Houston to Key Largo are Spirit Airlines ($42), Frontier ($43), and United Airlines ($86).

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

    Looking for the cheapest flight from Houston to Key Largo? While on average our users pay $240, our data indicates the cheapest price to be $123. The most popular route (Houston Hobby - Miami), is priced around $81.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Houston to Key Largo 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 Houston to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Houston to Key Largo (average of $228). Flying from Houston to Key Largo in March is currently the most expensive (average of $289). 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 Houston to Key Largo

Discover the top 6 airlines that operate flights from Houston to Key Largo. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$162FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$74Average$162FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$157Average$378FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$161Average$402FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$189Average$380FlexibilityNo cancel feeOn-time63%
DeltaCheapest$208Average$388FlexibilityNo cancel feeOn-timeN/A

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