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Key Largo

$45+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — MIA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Houston to Key Largo are usually found in August or May, booked 44 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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 febrero 20, 2025.

Round-trip from

$77
(Frontier)

One-way from

$47
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$226
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. 10% potential increase in price ($24 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 February 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 febrero 20, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/85:44 pmIAH - MIA
1 stop5h 41mFrontier
mar. 3/115:42 pmMIA - IAH
Nonstop3h 05mFrontier
Deal found 2/19$77
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/52:48 pmIAH - MIA
Nonstop2h 27mMultiple Airlines
mar. 3/185:42 pmMIA - IAH
Nonstop3h 05mMultiple Airlines
Deal found 2/19$78
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/76:04 amIAH - MIA
Nonstop2h 26mSpirit Airlines
jue. 4/1011:15 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Deal found 2/20$82
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/210:50 amHOU - MIA
Nonstop2h 20mSouthwest
mar. 4/86:10 pmMIA - HOU
Nonstop2h 50mSouthwest
Deal found 2/19$179
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/156:00 amIAH - MIA
1 stop5h 45mDelta
mié. 4/307:00 amMIA - IAH
1 stop7h 46mDelta
Deal found 2/19$199
This Delta deal was found by Cheapflights users on 2/18. 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.
mié. 3/1910:41 amHOU - MIA
1 stop5h 21mDelta
mar. 3/254:47 pmMIA - HOU
1 stop7h 19mDelta
Deal found 2/18$209
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.
sáb. 4/57:22 amIAH - MIA
Nonstop2h 28mAmerican Airlines
lun. 4/79:17 amMIA - IAH
Nonstop2h 59mAmerican Airlines
Deal found 2/19$217
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.
sáb. 4/512:27 pmHOU - MIA
1 stop15h 32mFrontier
dom. 4/136:30 amMIA - HOU
1 stop28h 02mFrontier
Deal found 2/19$231
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.
sáb. 4/56:31 pmHOU - MIA
1 stop5h 02mAmerican Airlines
sáb. 4/196:17 pmMIA - HOU
1 stop5h 23mAmerican Airlines
Deal found 2/19$262

Find flights from Houston to Key Largo within your budget

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 febrero 20, 2025.

Fly from

Houston

Fly to

Key Largo

Route

Depart

Return

Price

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

sáb. 3/8

5:44 pm-12:25 am

1 stop5h 41m

Miami

mar. 3/11

5:42 pm-7:47 pm

Nonstop3h 05m

$77

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

mié. 3/5

2:48 pm-6:15 pm

Nonstop2h 27m

Miami

mar. 3/18

5:42 pm-7:47 pm

Nonstop3h 05m

$78

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

lun. 4/7

6:04 am-9:30 am

Nonstop2h 26m

Miami

jue. 4/10

11:15 am-1:15 pm

Nonstop3h 00m

$82

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

mié. 4/2

10:50 am-2:10 pm

Nonstop2h 20m

Miami

mar. 4/8

6:10 pm-8:00 pm

Nonstop2h 50m

$179

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

mar. 4/15

6:00 am-1:50 pm

1 stop6h 50m

Miami

mar. 4/29

10:25 am-3:46 pm

1 stop6h 21m

$199

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

mié. 3/19

10:41 am-5:02 pm

1 stop5h 21m

Miami

mar. 3/25

4:47 pm-11:06 pm

1 stop7h 19m

$209

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

sáb. 4/5

7:22 am-10:50 am

Nonstop2h 28m

Miami

lun. 4/7

9:17 am-11:16 am

Nonstop2h 59m

$217

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

sáb. 4/5

12:27 pm-4:59 am

1 stop15h 32m

Miami

dom. 4/13

6:30 am-9:32 am

1 stop28h 02m

$231

HoustonMiami

HOU - MIA

HOUMIA

Houston Hobby

sáb. 4/5

6:31 pm-12:33 am

1 stop5h 02m

Miami

sáb. 4/19

6:17 pm-10:40 pm

1 stop5h 23m

$262

HoustonMiami

IAH - MIA

IAHMIA

Houston George Bush Intcntl

mié. 3/19

8:41 am-8:56 pm

1 stop11h 15m

$45

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 20 results
1
2

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.

Travel insights for flights from Houston to Key Largo

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

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 February 14, 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 $231). 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 febrero 20, 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. Monday 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 febrero 20, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines 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.
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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.2
Good
10,000 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

8.0
Excellent

Justin,May 2024

AUS - SAN

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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 ($47), Frontier ($50), and Southwest ($90).

  • 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 $313, our data indicates the cheapest price to be $88. The most popular route (Houston Hobby - Miami), is priced around $47.

  • 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 $231). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$164FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$69Average$161FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$157Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$161Average$399FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$198Average$423FlexibilityNo cancel feeOn-time63%
DeltaCheapest$208Average$403FlexibilityNo cancel feeOn-timeN/A
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