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George Bush Intcntl

$41+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — IAH
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Houston George Bush Intcntl are usually found in November or October, booked 46 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap 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 December 23, 2025.

This American Airlines deal was found by Cheapflights users on 12/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:54 pmMIA - IAH
Nonstop3h 04mAmerican Airlines
Thu 1/15:31 amIAH - MIA
Nonstop2h 39mAmerican Airlines
Deal found 12/21$127
This Super.com deal was found by Cheapflights users on 12/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Tue 1/138:30 amIAH - MIA
Nonstop2h 26mSpirit Airlines
Deal found 12/22$139
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - IAH
Nonstop3h 00mMultiple Airlines
Thu 1/1512:13 pmIAH - MIA
Nonstop2h 31mMultiple Airlines
Deal found 12/22$144
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Wed 1/148:30 amIAH - MIA
Nonstop2h 26mSpirit Airlines
Deal found 12/22$148
This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Thu 1/154:20 pmIAH - MIA
Nonstop2h 26mSpirit Airlines
Deal found 12/22$164
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - IAH
Nonstop3h 00mMultiple Airlines
Sun 1/112:36 pmIAH - MIA
Nonstop2h 31mMultiple Airlines
Deal found 12/22$165
This CheapOair deal was found by Cheapflights users on 12/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Tue 1/138:30 amIAH - MIA
Nonstop2h 26mSpirit Airlines
Deal found 12/21$166
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Thu 1/155:05 amIAH - MIA
1 stop5h 51mSpirit Airlines
Deal found 12/22$167
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:32 amMIA - IAH
Nonstop3h 27mMultiple Airlines
Wed 1/74:10 pmIAH - MIA
Nonstop2h 35mMultiple Airlines
Deal found 12/21$170
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:00 amMIA - IAH
Nonstop3h 00mSpirit Airlines
Wed 1/148:30 amIAH - MIA
Nonstop2h 26mSpirit Airlines
Deal found 12/22$174
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:30 amMIA - IAH
1 stop7h 44mMultiple Airlines
Wed 1/148:30 amIAH - MIA
Nonstop2h 26mMultiple Airlines
Deal found 12/22$176

Find 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 December 23, 2025.

Round-trip from

$74
(Cheapflightsfares)

One-way from

$41
(Frontier)

Popular in

June

Cheapest in

November

Average price

$206
From Key Largo to Houston George Bush Intcntl
Search Deals
One-way flight from Key Largo to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 23, 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

Fri 2/6

7:00 am-3:19 pm

1 stop9h 19m

Houston George Bush Intcntl

Mon 2/9

4:20 pm-7:46 pm

Nonstop2h 26m

$82

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 1/16

8:51 pm-10:56 pm

Nonstop3h 05m

Houston George Bush Intcntl

Mon 1/19

4:20 pm-7:46 pm

Nonstop2h 26m

$86

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 1/20

1:01 pm-3:08 pm

Nonstop3h 07m

Houston George Bush Intcntl

Tue 1/27

4:15 pm-11:56 am

1 stop18h 41m

$98

MiamiHouston

MIA - IAH

MIAIAH

Miami

Fri 1/16

7:00 am-3:19 pm

1 stop9h 19m

Houston George Bush Intcntl

Mon 1/19

3:56 pm-7:22 pm

Nonstop2h 26m

$107

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 2/19

6:02 am-3:15 pm

1 stop10h 13m

Houston George Bush Intcntl

Mon 2/23

6:00 am-12:16 pm

1 stop5h 16m

$125

MiamiHouston

MIA - IAH

MIAIAH

Miami

Thu 1/8

6:02 am-3:15 pm

1 stop10h 13m

Houston George Bush Intcntl

Mon 1/12

5:05 am-11:56 am

1 stop5h 51m

$131

MiamiHouston

MIA - IAH

MIAIAH

Miami

Sat 1/10

5:54 am-6:22 pm

1 stop13h 28m

Houston George Bush Intcntl

Mon 1/12

5:05 am-11:56 am

1 stop5h 51m

$132

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 1/13

9:10 am-7:36 pm

1 stop11h 26m

Houston George Bush Intcntl

Tue 1/20

10:30 am-5:12 pm

1 stop29h 42m

$163

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 3/3

6:02 am-3:15 pm

1 stop10h 13m

$44

MiamiHouston

MIA - IAH

MIAIAH

Miami

Tue 1/13

7:00 am-3:19 pm

1 stop9h 19m

$44

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 20 results
1
2

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 December 19, 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 46 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, March is the cheapest month in which you can book a flight from Key Largo to Houston George Bush Intcntl Airport (average of $39). Flying from Key Largo to Houston George Bush Intcntl Airport in June is currently the most expensive (average of $111). 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 December 23, 2025.

One of the essential ways to save on airfare from Key Largo to Houston George Bush Intcntl Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 44% on airfare.

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 Saturday mornings 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 December 23, 2025.

The most flights from KE9 to IAH are scheduled on a Monday (27 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 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 December 23, 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
9,109 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,109 reviews
United Airlines
7.4
Good
9,109 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
11,050 reviews
United Airlines
7.4
Good
9,109 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
8,194 reviews
United Airlines
7.4
Good
9,109 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
3,073 reviews
United Airlines
7.4
Good
9,109 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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 9h 19m. 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.

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

    The cheapest airlines for a one-way flight from Key Largo to Houston George Bush Intcntl Airport are Frontier ($40), Spirit Airlines ($40), and United Airlines ($63).

  • 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%), Finnair (100%), Republic Airways( 100%).

  • 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 $855, our data indicates the cheapest price to be $49. The most popular route (Miami - Houston George Bush Intcntl), is priced around $51.

  • 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, March is the cheapest month in which you can book a flight from Key Largo to Houston George Bush Intcntl Airport (average of $39). Flying from Key Largo to Houston George Bush Intcntl Airport in June is currently the most expensive (average of $111). 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
Spring
Montgomery
Katy
The Woodlands
Tomball
Jersey Village
Humble
Conroe
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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$26Average$118FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$71Average$148FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$107Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$124Average$284FlexibilityNo cancel feeOn-time69%

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