$73+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HOU
Aug 31 — Sep 71
Round-trip
1 adult, Economy
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Find cheap flights from Key Largo to Houston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Key Largo to Houston are usually found in October or September, booked 80 days in advance, depart on a Thursday or Tuesday and return on a Monday
Cheap flight deals from Key Largo to Houston
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Cheapest flights from Key Largo to HoustonExplore 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 August 1, 2026.
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 August 1, 2026.
This Booking.com deal was found by Cheapflights users on 7/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Thu 9/102:18 pm
IAH
- MIA
Nonstop2h 41m
Frontier
Deal found 7/27![Frontier logo]()
$106
This Frontier deal was found by Cheapflights users on 8/1. 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.
Thu 8/276:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Fri 8/288:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 8/1![Frontier logo]()
$107
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 9/1210:58 am
IAH
- MIA
Nonstop2h 41m
Frontier
Deal found 7/29![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 8/188:10 am
MIA
- IAH
1 stop15h 04m
Frontier
Tue 8/2510:49 am
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/30![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 7/30. 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.
Thu 9/105:32 am
MIA
- IAH
1 stop6h 51m
Frontier
Tue 9/152:18 pm
IAH
- MIA
Nonstop2h 41m
Frontier
Deal found 7/30![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:10 am
MIA
- IAH
1 stop12h 04m
Frontier
Sat 8/2212:38 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/29![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:10 am
MIA
- IAH
1 stop12h 04m
Frontier
Mon 8/248:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/28![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 7/30. 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.
Sun 9/66:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Mon 9/1410:30 am
IAH
- MIA
1 stop13h 16m
Frontier
Deal found 7/30![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 8/285:28 pm
MIA
- IAH
1 stop14h 52m
Frontier
Mon 8/318:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/31![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:10 am
MIA
- IAH
1 stop15h 04m
Frontier
Mon 8/248:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/28![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:10 am
MIA
- IAH
1 stop21h 10m
Frontier
Mon 8/318:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/27![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 8/224:32 pm
IAH
- MIA
1 stop20h 00m
Frontier
Deal found 7/29![Frontier logo]()
$124
Best flights from Key Largo to HoustonDiscover carefully curated flight deals from Key Largo to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
Discover carefully curated flight deals from Key Largo to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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 9/56:30 am
MIA
- HOU
1 stop6h 25m
Southwest
Tue 9/86:25 pm
HOU
- MIA
Nonstop2h 30m
Southwest
Deal found 7/27![Southwest logo]()
$179
This Booking.com deal was found by Cheapflights users on 7/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:25 am
MIA
- IAH
Nonstop3h 08m
Frontier
Thu 9/2412:08 pm
IAH
- MIA
1 stop7h 25m
Frontier
Deal found 7/31![Frontier logo]()
$180
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:01 pm
MIA
- IAH
Nonstop3h 02m
United Airlines
Wed 10/217:55 am
IAH
- MIA
Nonstop2h 44m
United Airlines
Deal found 7/31![United Airlines logo]()
$191
This Delta deal was found by Cheapflights users on 7/30. 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 12/86:00 am
MIA
- IAH
1 stop6h 25m
Delta
Wed 1/611:50 am
IAH
- MIA
1 stop5h 59m
Delta
Deal found 7/30![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/27. 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.
Thu 8/205:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Mon 8/245:05 am
HOU
- MIA
1 stop5h 20m
Southwest
Deal found 7/27![Southwest logo]()
$179
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
MIA
- IAH
1 stop6h 05m
Delta
Wed 9/94:59 pm
IAH
- MIA
1 stop6h 56m
Delta
Deal found 7/28![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/27. 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.
Thu 8/207:15 am
MIA
- HOU
2 stops7h 40m
Southwest
Thu 9/106:30 pm
HOU
- MIA
Nonstop2h 30m
Southwest
Deal found 7/27![Southwest logo]()
$184
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:35 am
MIA
- IAH
1 stop6h 07m
Delta
Mon 8/244:37 pm
IAH
- MIA
1 stop5h 14m
Delta
Deal found 7/28![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/31. 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.
Thu 8/275:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Mon 8/316:30 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 7/31![Southwest logo]()
$191
This Delta deal was found by Cheapflights users on 7/29. 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 9/97:18 am
MIA
- HOU
1 stop7h 00m
Delta
Wed 9/95:26 pm
HOU
- MIA
1 stop6h 29m
Delta
Deal found 7/29![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/29. 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.
Mon 8/244:00 pm
MIA
- HOU
1 stop9h 15m
Southwest
Sat 9/126:40 am
HOU
- MIA
2 stops8h 35m
Southwest
Deal found 7/29![Southwest logo]()
$194
This Delta deal was found by Cheapflights users on 7/31. 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.
Thu 10/156:00 am
MIA
- HOU
1 stop5h 08m
Delta
Mon 10/195:28 pm
HOU
- MIA
1 stop6h 25m
Delta
Deal found 7/31![Delta logo]()
$211
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:25 pm
MIA
- HOU
1 stop5h 20m
Southwest
Mon 9/287:00 am
HOU
- MIA
2 stops6h 40m
Southwest
Deal found 7/28![Southwest logo]()
$194
This Southwest deal was found by Cheapflights users on 7/31. 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.
Tue 9/157:10 am
MIA
- HOU
2 stops8h 50m
Southwest
Tue 9/229:30 am
HOU
- MIA
1 stop5h 35m
Southwest
Deal found 7/31![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 7/29. 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 11/245:00 pm
MIA
- IAH
1 stop6h 11m
Delta
Tue 12/17:00 am
IAH
- MIA
1 stop7h 55m
Delta
Deal found 7/29![Delta logo]()
$238
This Delta deal was found by Cheapflights users on 7/27. 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 8/2610:35 am
MIA
- IAH
1 stop6h 07m
Delta
Sun 8/308:05 am
IAH
- MIA
1 stop5h 49m
Delta
Deal found 7/27![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 7/27. 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 8/227:00 am
MIA
- IAH
1 stop5h 15m
Delta
Sun 8/307:00 am
IAH
- MIA
1 stop6h 54m
Delta
Deal found 7/27![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 11/197:45 pm
MIA
- IAH
1 stop5h 14m
Delta
Mon 11/236:13 pm
IAH
- MIA
1 stop5h 46m
Delta
Deal found 7/29![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 9/66:00 am
MIA
- IAH
1 stop6h 15m
Delta
Mon 9/146:49 pm
IAH
- MIA
1 stop5h 06m
Delta
Deal found 7/30![Delta logo]()
$272
Last-minute flights from Key Largo to HoustonDiscover last-minute flight deals from Key Largo to Houston. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Houston. Data last updated August 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 8/188:10 am
MIA
- IAH
1 stop15h 04m
Frontier
Tue 8/2510:49 am
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/30![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:10 am
MIA
- IAH
1 stop12h 04m
Frontier
Mon 8/248:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/28![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:10 am
MIA
- IAH
1 stop12h 04m
Frontier
Sat 8/2212:38 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/29![Frontier logo]()
$116
This Booking.com deal was found by Cheapflights users on 7/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Thu 9/102:18 pm
IAH
- MIA
Nonstop2h 41m
Frontier
Deal found 7/27![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 8/224:32 pm
IAH
- MIA
1 stop20h 00m
Frontier
Deal found 7/29![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:10 am
MIA
- IAH
1 stop15h 04m
Frontier
Mon 8/248:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/28![Frontier logo]()
$122
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 9/1210:58 am
IAH
- MIA
Nonstop2h 41m
Frontier
Deal found 7/29![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:10 am
MIA
- IAH
1 stop21h 10m
Frontier
Mon 8/318:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/27![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 8/1. 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.
Thu 8/276:50 am
MIA
- IAH
Nonstop2h 54m
Frontier
Fri 8/288:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 8/1![Frontier logo]()
$107
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:28 pm
MIA
- IAH
1 stop5h 46m
Frontier
Mon 8/318:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/30![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 8/285:28 pm
MIA
- IAH
1 stop14h 52m
Frontier
Mon 8/318:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/31![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 7/30. 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.
Sat 8/293:07 pm
MIA
- IAH
1 stop8h 07m
Frontier
Sun 9/68:11 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 7/30![Frontier logo]()
$120
One-way flights from Key Largo to HoustonSearch for one-way flight options from Key Largo to Houston. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
Search for one-way flight options from Key Largo to Houston. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Tue 9/111:10 am
MIA
- IAH
1 stop21h 10m
Frontier
Deal found 7/31![Frontier logo]()
$73
This Jettzy deal was found by Cheapflights users on 7/30. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:28 pm
MIA
- IAH
1 stop5h 46m
Frontier
Deal found 7/30![Frontier logo]()
$75
This Gotogate deal was found by Cheapflights users on 7/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:28 pm
MIA
- IAH
1 stop5h 46m
Frontier
Deal found 7/30![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 9/2811:25 am
MIA
- IAH
Nonstop3h 08m
Frontier
Deal found 7/27![Frontier logo]()
$77
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:10 am
MIA
- IAH
1 stop15h 04m
Frontier
Deal found 7/29![Frontier logo]()
$78
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:45 am
MIA
- IAH
1 stop6h 55m
Frontier
Deal found 7/28![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1911:10 am
MIA
- IAH
1 stop12h 04m
Frontier
Deal found 7/27![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/255:32 am
MIA
- IAH
1 stop26h 45m
Frontier
Deal found 7/27![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/318:10 am
MIA
- IAH
1 stop24h 10m
Frontier
Deal found 7/27![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Tue 9/299:43 pm
MIA
- IAH
1 stop25h 47m
Frontier
Deal found 7/31![Frontier logo]()
$84
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 10/249:45 pm
MIA
- IAH
Nonstop3h 02m
American Airlines
Deal found 7/30![American Airlines logo]()
$85
This Southwest deal was found by Cheapflights users on 7/29. 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.
Thu 8/275:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Deal found 7/29![Southwest logo]()
$85
Find 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 August 1, 2026.
Round-trip from | $106 (Super.com) |
|---|---|
One-way from | $73 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $171 |
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 August 1, 2026.
Use the filters below to find and compare flights from Key Largo to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MiamiHouston
MIA - HOU
MIAHOU
Miami
Sat 9/5
6:30 am-11:55 am
1 stop6h 25m
Houston Hobby
Tue 9/8
6:25 pm-9:55 pm
Nonstop2h 30m
$179
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 8/20
5:45 am-7:20 am
Nonstop2h 35m
Houston Hobby
Mon 8/24
5:05 am-11:25 am
1 stop5h 20m
$179
MiamiHouston
MIA - IAH
MIAIAH
Miami
Thu 9/17
11:25 am-1:33 pm
Nonstop3h 08m
Houston George Bush Intcntl
Thu 9/24
12:08 pm-8:33 pm
1 stop7h 25m
$180
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 8/20
7:15 am-1:55 pm
2 stops7h 40m
Houston Hobby
Thu 9/10
6:30 pm-10:00 pm
Nonstop2h 30m
$184
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 9/23
5:01 pm-7:03 pm
Nonstop3h 02m
Houston George Bush Intcntl
Wed 10/21
7:55 am-11:39 am
Nonstop2h 44m
$191
Quickest round-trip
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 8/27
5:45 am-7:20 am
Nonstop2h 35m
Houston Hobby
Mon 8/31
6:30 pm-9:55 pm
Nonstop2h 25m
$191
MiamiHouston
MIA - HOU
MIAHOU
Miami
Mon 8/24
4:00 pm-12:15 am
1 stop9h 15m
Houston Hobby
Sat 9/12
6:40 am-4:15 pm
2 stops8h 35m
$194
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 9/24
6:25 pm-10:45 pm
1 stop5h 20m
Houston Hobby
Mon 9/28
7:00 am-2:40 pm
2 stops6h 40m
$194
MiamiHouston
MIA - IAH
MIAIAH
Miami
Tue 12/8
6:00 am-11:25 am
1 stop6h 25m
Houston George Bush Intcntl
Wed 1/6
11:50 am-6:49 pm
1 stop5h 59m
$197
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 9/9
6:00 am-11:05 am
1 stop6h 05m
Houston George Bush Intcntl
Wed 9/9
4:59 pm-12:55 am
1 stop6h 56m
$197
Showing 1-10 of 36 resultsSorted by cheapest first
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.
MIA-IAH
MIA-HOU
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
KE9-HO1
MIA-IAH
MIA-HOU
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 August 1, 2026.
One of the essential ways to save on airfare from Key Largo to Houston is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 36% on airfare.
How much does it cost to fly round-trip from Key Largo to Houston?
Airfare is below average for this route at the moment.
Key Largo to Houston flights typically cost between $125 and $234 in August.The cheapest round-trip price found within the last 5 days was $106 on Frontier (Aug 22-Aug 24).
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 August 1, 2026.
Travelers seeking maximum savings on their Key Largo to Houston flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 1, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Key Largo to Houston 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.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
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.
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Alternative routes for Key Largo to Houston
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Key Largo and Houston flights
Browse other Key Largo and Houston flight options. Last updated on August 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$161 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$300 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$117 | Average$277 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$122 | Average$294 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$127 | Average$310 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$164 | Average$232 | FlexibilityNo cancel fee | On-time62% |