$61+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HOU
Jul 16 — Jul 231
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 67 days in advance, depart on a Thursday or Friday 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 June 16, 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 June 16, 2026.
This Super.com deal was found by Cheapflights users on 6/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Wed 7/158:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/14![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 6/12. 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.
Wed 8/269:35 am
MIA
- IAH
Nonstop2h 59m
Frontier
Sun 8/308:37 pm
IAH
- MIA
Nonstop2h 39m
Frontier
Deal found 6/12![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 6/11. 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 7/296:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Wed 8/58:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/11![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 8/158:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/15![Frontier logo]()
$107
This Super.com deal was found by Cheapflights users on 6/13. 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.
Sat 8/86:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Mon 8/108:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/13![Frontier logo]()
$109
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Mon 8/108:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/15![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Thu 8/68:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/15![Frontier logo]()
$112
This Frontier deal was found by Cheapflights users on 6/12. 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 8/96:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sat 8/158:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/12![Frontier logo]()
$113
This Super.com deal was found by Cheapflights users on 6/12. 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.
Thu 7/166:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Thu 8/68:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/12![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:35 am
MIA
- IAH
Nonstop2h 59m
Frontier
Sun 8/308:37 pm
IAH
- MIA
Nonstop2h 39m
Frontier
Deal found 6/15![Frontier logo]()
$116
This Southwest deal was found by Cheapflights users on 6/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Wed 8/56:25 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 6/14![Southwest logo]()
$169
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Thu 8/136:30 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 6/15![Southwest logo]()
$186
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 June 16, 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 June 16, 2026.
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:20 am
MIA
- IAH
Nonstop3h 10m
United Airlines
Tue 11/1712:00 pm
IAH
- MIA
Nonstop2h 25m
United Airlines
Deal found 6/16![United Airlines logo]()
$169
This Southwest deal was found by Cheapflights users on 6/13. 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.
Wed 7/15:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Wed 7/87:25 pm
HOU
- MIA
Nonstop2h 30m
Southwest
Deal found 6/13![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:10 am
MIA
- IAH
1 stop7h 23m
Delta
Wed 7/295:20 pm
IAH
- MIA
1 stop5h 19m
Delta
Deal found 6/15![Delta logo]()
$211
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:00 am
MIA
- IAH
1 stop5h 15m
Delta
Wed 9/92:44 pm
IAH
- MIA
1 stop5h 26m
Delta
Deal found 6/15![Delta logo]()
$211
This Southwest deal was found by Cheapflights users on 6/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Tue 9/811:25 am
HOU
- MIA
2 stops7h 45m
Southwest
Deal found 6/14![Southwest logo]()
$218
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:40 pm
MIA
- IAH
1 stop5h 30m
Delta
Tue 11/105:55 am
IAH
- MIA
1 stop6h 01m
Delta
Deal found 6/16![Delta logo]()
$211
This Southwest deal was found by Cheapflights users on 6/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:25 am
MIA
- HOU
2 stops8h 20m
Southwest
Tue 8/47:20 am
HOU
- MIA
1 stop7h 10m
Southwest
Deal found 6/14![Southwest logo]()
$226
This Delta deal was found by Cheapflights users on 6/14. 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 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 8/302:37 pm
IAH
- MIA
1 stop5h 27m
Delta
Deal found 6/14![Delta logo]()
$220
This Southwest deal was found by Cheapflights users on 6/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:25 am
MIA
- HOU
2 stops9h 40m
Southwest
Tue 8/410:10 am
HOU
- MIA
2 stops8h 50m
Southwest
Deal found 6/14![Southwest logo]()
$235
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:03 pm
MIA
- IAH
1 stop5h 56m
Delta
Tue 1/195:55 am
IAH
- MIA
1 stop6h 01m
Delta
Deal found 6/15![Delta logo]()
$233
This Southwest deal was found by Cheapflights users on 6/12. 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.
Fri 7/245:10 am
MIA
- HOU
Nonstop2h 35m
Southwest
Mon 7/272:10 pm
HOU
- MIA
2 stops7h 00m
Southwest
Deal found 6/12![Southwest logo]()
$248
This Delta deal was found by Cheapflights users on 6/13. 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 11/243:35 pm
MIA
- IAH
1 stop6h 35m
Delta
Tue 12/15:55 am
IAH
- MIA
1 stop6h 01m
Delta
Deal found 6/13![Delta logo]()
$233
This Southwest deal was found by Cheapflights users on 6/11. 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 7/165:25 am
MIA
- HOU
2 stops8h 20m
Southwest
Mon 7/209:00 pm
HOU
- MIA
Nonstop2h 30m
Southwest
Deal found 6/11![Southwest logo]()
$252
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:25 am
MIA
- IAH
1 stop6h 02m
Delta
Mon 8/104:37 pm
IAH
- MIA
1 stop7h 30m
Delta
Deal found 6/14![Delta logo]()
$235
This Delta deal was found by Cheapflights users on 6/12. 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 8/226:00 am
MIA
- IAH
1 stop6h 15m
Delta
Sun 8/304:37 pm
IAH
- MIA
1 stop7h 30m
Delta
Deal found 6/12![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:25 am
MIA
- HOU
2 stops7h 20m
Southwest
Thu 8/610:40 am
HOU
- MIA
2 stops9h 05m
Southwest
Deal found 6/15![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am
MIA
- IAH
1 stop6h 06m
Delta
Mon 11/164:10 pm
IAH
- MIA
1 stop7h 42m
Delta
Deal found 6/15![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 6/13. 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 8/87:45 am
MIA
- HOU
1 stop11h 35m
Southwest
Mon 8/107:20 am
HOU
- MIA
1 stop7h 50m
Southwest
Deal found 6/13![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sun 7/125:00 am
MIA
- HOU
Nonstop2h 35m
Southwest
Sun 7/199:10 pm
HOU
- MIA
Nonstop2h 30m
Southwest
Deal found 6/11![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 6/11. 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.
Fri 7/175:10 am
MIA
- HOU
Nonstop2h 35m
Southwest
Mon 7/207:30 am
HOU
- MIA
2 stops9h 40m
Southwest
Deal found 6/11![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 6/12. 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.
Fri 6/265:25 am
MIA
- HOU
1 stop5h 10m
Southwest
Sat 6/2711:20 am
HOU
- MIA
1 stop10h 05m
Southwest
Deal found 6/12![Southwest logo]()
$352
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:40 am
MIA
- HOU
Nonstop2h 35m
Southwest
Sun 6/289:10 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 6/15![Southwest logo]()
$357
Last-minute flights from Key Largo to HoustonDiscover last-minute flight deals from Key Largo to Houston. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Houston. Data last updated June 16, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Tue 8/48:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/14![Frontier logo]()
$116
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Thu 7/26:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Mon 7/68:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/11![Frontier logo]()
$125
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Fri 7/36:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Mon 7/68:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/11![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 6/12. 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 7/46:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Mon 7/68:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/12![Frontier logo]()
$119
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sun 7/128:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/15![Frontier logo]()
$117
This Super.com deal was found by Cheapflights users on 6/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Wed 7/158:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/14![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Tue 7/148:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/15![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Tue 7/218:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/15![Frontier logo]()
$127
This Super.com deal was found by Cheapflights users on 6/12. 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.
Thu 7/166:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Thu 8/68:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/12![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 6/11. 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 7/236:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Sun 7/268:37 pm
IAH
- MIA
Nonstop2h 54m
Frontier
Deal found 6/11![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 6/11. 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 7/296:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Wed 8/58:37 pm
IAH
- MIA
Nonstop2h 44m
Frontier
Deal found 6/11![Frontier logo]()
$106
This Southwest deal was found by Cheapflights users on 6/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Wed 8/56:25 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 6/14![Southwest logo]()
$169
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 June 16, 2026.
Search for one-way flight options from Key Largo to Houston. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Trip.com deal was found by Cheapflights users on 6/13. 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.
Sun 9/206:45 am
MIA
- IAH
Nonstop3h 00m
Frontier
Deal found 6/13![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/306:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Deal found 6/15![Frontier logo]()
$68
This Super.com deal was found by Cheapflights users on 6/12. 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.
Thu 7/26:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Deal found 6/12![Frontier logo]()
$72
This iWofly deal was found by Cheapflights users on 6/14. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Deal found 6/14![Frontier logo]()
$73
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:30 am
MIA
- IAH
Nonstop2h 52m
United Airlines
Deal found 6/16![United Airlines logo]()
$85
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Deal found 6/15![Southwest logo]()
$85
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/92:37 pm
MIA
- IAH
Nonstop2h 47m
American Airlines
Deal found 6/12![American Airlines logo]()
$86
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:00 am
MIA
- IAH
Nonstop2h 50m
American Airlines
Deal found 6/14![American Airlines logo]()
$87
This Frontier deal was found by Cheapflights users on 6/12. 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.
Mon 7/136:30 am
MIA
- IAH
Nonstop2h 54m
Frontier
Deal found 6/12![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 6/11. 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.
Fri 7/36:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Deal found 6/11![Frontier logo]()
$92
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:40 am
MIA
- HOU
1 stop11h 25m
Southwest
Deal found 6/15![Southwest logo]()
$100
This Delta deal was found by Cheapflights users on 6/12. 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 8/116:00 am
MIA
- HOU
1 stop7h 16m
Delta
Deal found 6/12![Delta logo]()
$101
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 June 16, 2026.
Round-trip from | $98 (Super.com) |
|---|---|
One-way from | $61 (Trip.com) |
Popular in | June |
Cheapest in | October |
Average price | $284 |
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 June 16, 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 - IAH
MIAIAH
Miami
Tue 11/10
6:20 am-8:30 am
Nonstop3h 10m
Houston George Bush Intcntl
Tue 11/17
12:00 pm-3:25 pm
Nonstop2h 25m
$169
MiamiHouston
MIA - HOU
MIAHOU
Miami
Wed 7/1
5:45 am-7:20 am
Nonstop2h 35m
Houston Hobby
Wed 7/8
7:25 pm-10:55 pm
Nonstop2h 30m
$207
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 7/22
7:10 am-1:33 pm
1 stop7h 23m
Houston George Bush Intcntl
Wed 7/29
5:20 pm-11:39 pm
1 stop5h 19m
$211
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 9/2
7:00 am-11:15 am
1 stop5h 15m
Houston George Bush Intcntl
Wed 9/9
2:44 pm-9:10 pm
1 stop5h 26m
$211
MiamiHouston
MIA - IAH
MIAIAH
Miami
Tue 11/3
4:40 pm-9:10 pm
1 stop5h 30m
Houston George Bush Intcntl
Tue 11/10
5:55 am-12:56 pm
1 stop6h 01m
$211
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 9/3
5:45 am-7:20 am
Nonstop2h 35m
Houston Hobby
Tue 9/8
11:25 am-8:10 pm
2 stops7h 45m
$218
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 8/26
10:35 am-3:42 pm
1 stop6h 07m
Houston George Bush Intcntl
Sun 8/30
2:37 pm-9:04 pm
1 stop5h 27m
$220
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 7/23
5:25 am-12:45 pm
2 stops8h 20m
Houston Hobby
Tue 8/4
7:20 am-3:30 pm
1 stop7h 10m
$226
MiamiHouston
MIA - IAH
MIAIAH
Miami
Tue 10/6
2:03 pm-6:59 pm
1 stop5h 56m
Houston George Bush Intcntl
Tue 1/19
5:55 am-12:56 pm
1 stop6h 01m
$233
MiamiHouston
MIA - IAH
MIAIAH
Miami
Tue 11/24
3:35 pm-9:10 pm
1 stop6h 35m
Houston George Bush Intcntl
Tue 12/1
5:55 am-12:56 pm
1 stop6h 01m
$233
Showing 1-10 of 42 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-HOU
MIA-IAH
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-HOU
MIA-IAH
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 June 16, 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 40% on airfare.
How much does it cost to fly round-trip from Key Largo to Houston?
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 June 13, 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. Sunday mornings 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 June 16, 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
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Overall
7.9
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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Key Largo and Houston flights
Browse other Key Largo and Houston flight options. Last updated on June 16, 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 June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$159 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$288 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$107 | Average$249 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$107 | Average$259 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$107 | Average$285 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$164 | Average$242 | FlexibilityNo cancel fee | On-time62% |