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George Bush Intcntl

$40+ Cheap flights from Key Largo, FL to George Bush Intcntl (IAH)

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — IAH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Houston George Bush Intcntl are usually found in January or October, booked 26 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Key Largo to George Bush Intcntl

Keep the following information in mind while searching for Key Largo to George Bush Intcntl flight deals. Data was last updated September 16, 2025.

Round-trip from

$75
(Kiwi.com)

One-way from

$40
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$181
From Key Largo to Houston George Bush Intcntl
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One-way flight from Key Largo to Houston George Bush Intcntl
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Highest demand for flights based on searches. 5% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Key Largo to George Bush Intcntl

Cheapest flights from Key Largo to George Bush Intcntl
Explore the most affordable flight options available from Key Largo to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/108:00 amMIA - IAH
Nonstop3h 00mMultiple Airlines
Mon 10/138:35 amIAH - MIA
Nonstop2h 25mMultiple Airlines
Deal found 9/15$75
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Fri 10/36:59 pmMIA - IAH
Nonstop3h 08mSpirit Airlines
Mon 10/68:35 amIAH - MIA
Nonstop2h 25mSpirit Airlines
Deal found 9/15$77
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 9/306:59 pmMIA - IAH
Nonstop3h 08mSpirit Airlines
Tue 10/72:48 pmIAH - MIA
Nonstop2h 23mSpirit Airlines
Deal found 9/16$78
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/97:23 pmMIA - IAH
Nonstop2h 54mSpirit Airlines
Tue 10/142:48 pmIAH - MIA
Nonstop2h 23mSpirit Airlines
Deal found 9/14$79
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 9/298:00 amMIA - IAH
Nonstop2h 54mFrontier
Mon 10/610:49 amIAH - MIA
Nonstop2h 42mFrontier
Deal found 9/14$81
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/101:31 pmMIA - IAH
Nonstop2h 49mSpirit Airlines
Mon 10/138:35 amIAH - MIA
Nonstop2h 25mSpirit Airlines
Deal found 9/15$82
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:47 pmMIA - IAH
Nonstop2h 51mMultiple Airlines
Mon 10/1310:55 amIAH - MIA
Nonstop2h 43mMultiple Airlines
Deal found 9/14$83
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/108:00 amMIA - IAH
Nonstop3h 00mMultiple Airlines
Sun 10/126:43 pmIAH - MIA
Nonstop2h 26mMultiple Airlines
Deal found 9/14$84
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/97:23 pmMIA - IAH
Nonstop2h 54mSpirit Airlines
Mon 10/138:35 amIAH - MIA
Nonstop2h 25mSpirit Airlines
Deal found 9/14$86
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:23 pmMIA - IAH
Nonstop2h 54mSpirit Airlines
Wed 10/222:48 pmIAH - MIA
Nonstop2h 23mSpirit Airlines
Deal found 9/15$87
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/117:42 pmMIA - IAH
1 stop4h 43mSpirit Airlines
Mon 10/138:35 amIAH - MIA
Nonstop2h 25mSpirit Airlines
Deal found 9/15$88
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/233:47 pmMIA - IAH
Nonstop2h 51mMultiple Airlines
Sat 10/258:00 pmIAH - MIA
Nonstop2h 43mMultiple Airlines
Deal found 9/15$90

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to George Bush Intcntl 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 September 16, 2025.
Use the filters below to find and compare flights from Key Largo to Houston George Bush Intcntl Airport that are best for you.

Fly from

Key Largo

Fly to

George Bush Intcntl

Route

Depart

Return

Price

MiamiHouston

MIA - IAH

MIAIAH

Miami

Wed 10/15

7:23 pm-9:17 pm

Nonstop2h 54m

Houston George Bush Intcntl

Sat 10/18

8:00 pm-11:43 pm

Nonstop2h 43m

$83

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 11/8

8:00 am-10:00 am

Nonstop3h 00m

Houston George Bush Intcntl

Sun 11/9

6:18 pm-9:59 pm

Nonstop2h 41m

$83

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 10/16

7:23 pm-9:17 pm

Nonstop2h 54m

Houston George Bush Intcntl

Sun 10/19

6:43 pm-10:09 pm

Nonstop2h 26m

$86

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 12/2

6:30 am-8:32 am

Nonstop3h 02m

Houston George Bush Intcntl

Sat 12/6

6:18 pm-9:59 pm

Nonstop2h 41m

$103

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 9/26

3:50 pm-5:54 pm

Nonstop3h 04m

Houston George Bush Intcntl

Sun 9/28

5:25 am-9:01 am

Nonstop2h 36m

$105

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 10/4

12:18 pm-9:52 pm

1 stop10h 34m

Houston George Bush Intcntl

Mon 10/13

10:55 am-2:38 pm

Nonstop2h 43m

$107

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 11/8

8:00 am-10:00 am

Nonstop3h 00m

Houston George Bush Intcntl

Sun 11/9

5:28 pm-6:07 pm

1 stop23h 39m

$109

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 10/30

3:47 pm-5:38 pm

Nonstop2h 51m

Houston George Bush Intcntl

Mon 11/3

7:21 am-5:05 pm

1 stop8h 44m

$111

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 11/14

11:07 am-9:53 pm

1 stop11h 46m

Houston George Bush Intcntl

Mon 11/17

6:18 pm-9:59 pm

Nonstop2h 41m

$112

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 11/8

9:00 am-10:57 am

Nonstop2h 57m

Houston George Bush Intcntl

Sun 11/16

6:25 pm-9:58 pm

Nonstop2h 33m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Key Largo to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl 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 George Bush Intcntl Airport

How far ahead should I book a flight from Key Largo to Houston George Bush Intcntl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to George Bush Intcntl. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Key Largo to Houston George Bush Intcntl Airport, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Key Largo to Houston George Bush Intcntl Airport?

Currently, August is the cheapest month in which you can book a flight from Key Largo to Houston George Bush Intcntl Airport (average of $241). Flying from Key Largo to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 IAH?

Find hourly flight availability from Key Largo to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 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 George Bush Intcntl Airport as you normally would.

What is the cheapest day to fly from Key Largo to Houston George Bush Intcntl Airport?

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

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

Weekly flight availability from Key Largo to Houston George Bush Intcntl Airport

Explore weekly flight availability from Key Largo to George Bush Intcntl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 16, 2025.

The most flights from KE9 to IAH are scheduled on a Monday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Spirit Airlines from Key Largo to Houston George Bush Intcntl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
Spirit Airlines
6.3
Okay
8,019 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
Frontier
5.8
Fair
3,174 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

Related info for your journey

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

  • How long is the flight from Key Largo to Houston George Bush Intcntl Airport?

    There are many flights that can get you from Key Largo to Houston George Bush Intcntl Airport in 2h 54m. Fly via Spirit Airlines to get the fastest option. Key Largo and Houston George Bush Intcntl Airport are separated by a distance of 962 mi. Generally, flights for this route are nonstop.

  • What are the most reliable airlines from Key Largo to Houston George Bush Intcntl Airport?

    Before booking your flight to Houston George Bush Intcntl Airport from Key Largo, check out the most reliable airlines to get you to your destination on time: Air Chathams (100%), Envoy Air (96%), ANA( 92%).

  • What are the cheapest flights from Key Largo to Houston George Bush Intcntl Airport?

    Looking for the cheapest flight from Key Largo to Houston George Bush Intcntl Airport? While on average our users pay $866, our data indicates the cheapest price to be $53. The most popular route (Miami - Houston George Bush Intcntl), is priced around $65.

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

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

  • How can I find direct flights from Key Largo to George Bush Intcntl?

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

  • Can I find deals for business class flights from Key Largo to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Key Largo to George Bush Intcntl 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 George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Key Largo to Houston George Bush Intcntl Airport (average of $241). Flying from Key Largo to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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Top 4 airlines flying from Key Largo to George Bush Intcntl

Discover the top 4 airlines that operate flights from Key Largo to George Bush Intcntl. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$26Average$114FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$73Average$166FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$108Average$308FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$122Average$311FlexibilityNo cancel feeOn-time69%

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