$43+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HOU
Jun 4 — Jun 111
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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Best
Last-minute
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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 May 5, 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 May 5, 2026.
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:34 am
MIA
- IAH
Nonstop3h 01m
Multiple Airlines
Mon 6/89:17 pm
IAH
- MIA
Nonstop2h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$85
This Expedia deal was found by Cheapflights users on 4/30. 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.
Wed 5/202:25 pm
MIA
- IAH
Nonstop2h 51m
Multiple Airlines
Mon 5/259:17 pm
IAH
- MIA
Nonstop2h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$86
This Frontier deal was found by Cheapflights users on 5/2. 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 5/279:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Mon 6/158:37 pm
IAH
- MIA
Nonstop2h 35m
Frontier
Deal found 5/2![Frontier logo]()
$87
This eDestinos deal was found by Cheapflights users on 4/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Mon 5/259:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 4/30![Frontier logo]()
$90
This WAYA deal was found by Cheapflights users on 5/1. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Mon 6/15:45 am
IAH
- MIA
1 stop6h 35m
Frontier
Deal found 5/1![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/239:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Tue 6/166:30 am
IAH
- MIA
1 stop9h 01m
Frontier
Deal found 5/2![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/45:22 pm
MIA
- IAH
1 stop6h 28m
Frontier
Mon 6/89:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 5/4![Frontier logo]()
$94
This Expedia deal was found by Cheapflights users on 4/30. 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.
Tue 6/22:25 pm
MIA
- IAH
Nonstop2h 51m
Multiple Airlines
Mon 6/89:17 pm
IAH
- MIA
Nonstop2h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$97
This Expedia deal was found by Cheapflights users on 4/30. 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.
Sat 5/232:59 pm
MIA
- IAH
1 stop6h 33m
Frontier
Mon 5/259:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 4/30![Frontier logo]()
$98
This CheapOair deal was found by Cheapflights users on 5/4. 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.
Tue 6/29:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Sat 6/69:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 5/4![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 4/29. 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.
Wed 6/36:15 am
MIA
- HOU
Nonstop2h 50m
Southwest
Tue 6/97:25 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 4/29![Southwest logo]()
$169
This Southwest deal was found by Cheapflights users on 5/4. 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 6/312:35 pm
MIA
- HOU
1 stop9h 20m
Southwest
Wed 6/107:25 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 5/4![Southwest logo]()
$179
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 May 5, 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 May 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/95:26 pm
MIA
- IAH
1 stop6h 22m
Frontier
Sat 6/208:37 pm
IAH
- MIA
Nonstop2h 35m
Frontier
Deal found 5/4![Frontier logo]()
$129
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2411:24 am
MIA
- IAH
Nonstop3h 01m
Spirit Airlines
Mon 5/254:20 pm
IAH
- MIA
Nonstop2h 28m
Spirit Airlines
Deal found 4/29![Spirit Airlines logo]()
$150
This Southwest deal was found by Cheapflights users on 5/4. 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
Wed 7/221:30 pm
HOU
- MIA
2 stops7h 20m
Southwest
Deal found 5/4![Southwest logo]()
$184
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:38 pm
MIA
- IAH
1 stop9h 46m
Delta
Tue 6/238:05 am
IAH
- MIA
1 stop7h 55m
Delta
Deal found 5/1![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/284:53 pm
MIA
- IAH
Nonstop3h 03m
United Airlines
Mon 6/112:00 pm
IAH
- MIA
Nonstop2h 47m
United Airlines
Deal found 4/30![United Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/69:38 pm
MIA
- IAH
2 stops34h 56m
Frontier
Fri 7/38:37 pm
IAH
- MIA
Nonstop2h 35m
Frontier
Deal found 5/4![Frontier logo]()
$187
This Delta deal was found by Cheapflights users on 5/4. 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 6/176:05 pm
MIA
- IAH
1 stop6h 51m
Delta
Tue 6/235:40 am
IAH
- MIA
1 stop6h 24m
Delta
Deal found 5/4![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:30 am
MIA
- HOU
Nonstop2h 50m
Southwest
Mon 5/253:10 pm
HOU
- MIA
Nonstop2h 15m
Southwest
Deal found 4/30![Southwest logo]()
$199
This Expedia deal was found by Cheapflights users on 5/4. 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.
Wed 7/1510:06 pm
MIA
- IAH
1 stop15h 41m
Frontier
Wed 7/2210:36 am
IAH
- MIA
1 stop8h 57m
Frontier
Deal found 5/4![Frontier logo]()
$190
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:30 am
MIA
- HOU
Nonstop2h 50m
Southwest
Mon 6/13:10 pm
HOU
- MIA
Nonstop2h 15m
Southwest
Deal found 4/30![Southwest logo]()
$199
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/306:33 am
MIA
- IAH
1 stop10h 19m
Delta
Tue 6/28:29 am
IAH
- MIA
1 stop7h 17m
Delta
Deal found 4/30![Delta logo]()
$208
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:39 pm
MIA
- IAH
1 stop5h 15m
Delta
Thu 6/45:55 am
IAH
- MIA
1 stop6h 01m
Delta
Deal found 5/1![Delta logo]()
$208
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:10 pm
MIA
- HOU
1 stop8h 45m
Southwest
Mon 6/89:00 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 4/30![Southwest logo]()
$209
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 5/306:33 am
MIA
- IAH
1 stop10h 19m
Delta
Wed 6/108:05 am
IAH
- MIA
1 stop5h 50m
Delta
Deal found 4/29![Delta logo]()
$208
This Southwest deal was found by Cheapflights users on 5/4. 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 6/68:45 pm
MIA
- HOU
1 stop13h 25m
Southwest
Fri 7/39:00 pm
HOU
- MIA
Nonstop2h 25m
Southwest
Deal found 5/4![Southwest logo]()
$224
This Southwest deal was found by Cheapflights users on 5/4. 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 6/45:25 am
MIA
- HOU
2 stops9h 20m
Southwest
Mon 6/81:30 pm
HOU
- MIA
2 stops8h 05m
Southwest
Deal found 5/4![Southwest logo]()
$229
This Southwest deal was found by Cheapflights users on 5/4. 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 6/95:45 am
MIA
- HOU
Nonstop2h 35m
Southwest
Sat 6/201:20 pm
HOU
- MIA
2 stops8h 40m
Southwest
Deal found 5/4![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 5/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:40 am
MIA
- HOU
2 stops8h 20m
Southwest
Sat 6/65:25 am
HOU
- MIA
1 stop7h 50m
Southwest
Deal found 5/1![Southwest logo]()
$304
Last-minute flights from Key Largo to HoustonDiscover last-minute flight deals from Key Largo to Houston. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Houston. Data last updated May 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/2. 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 5/95:57 pm
MIA
- HOU
1 stop5h 29m
Delta
Wed 5/2710:27 am
HOU
- MIA
1 stop7h 07m
Delta
Deal found 5/2![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 5/2. 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 5/95:40 pm
MIA
- HOU
Nonstop2h 50m
Southwest
Wed 5/2710:25 am
HOU
- MIA
1 stop5h 25m
Southwest
Deal found 5/2![Southwest logo]()
$342
This Expedia deal was found by Cheapflights users on 5/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:25 pm
MIA
- IAH
Nonstop2h 51m
Multiple Airlines
Fri 6/59:17 pm
IAH
- MIA
Nonstop2h 27m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$148
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:15 am
MIA
- HOU
Nonstop2h 50m
Southwest
Thu 5/283:10 pm
HOU
- MIA
Nonstop2h 15m
Southwest
Deal found 4/30![Southwest logo]()
$327
This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Mon 5/189:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 4/29![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/142:25 pm
MIA
- IAH
Nonstop2h 51m
Multiple Airlines
Mon 5/189:17 pm
IAH
- MIA
Nonstop2h 27m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$122
This Super.com deal was found by Cheapflights users on 5/2. 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 5/146:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Sun 5/179:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 5/2![Frontier logo]()
$128
This Flightnetwork deal was found by Cheapflights users on 5/2. 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.
Thu 5/146:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Tue 6/212:57 pm
IAH
- MIA
Nonstop2h 30m
Frontier
Deal found 5/2![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Thu 5/1411:24 am
MIA
- IAH
Nonstop3h 01m
Multiple Airlines
Thu 5/2812:27 pm
IAH
- MIA
1 stop5h 31m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$134
This Frontier deal was found by Cheapflights users on 4/30. 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 5/146:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Fri 5/159:17 pm
IAH
- MIA
Nonstop2h 27m
Frontier
Deal found 4/30![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:24 am
MIA
- IAH
Nonstop3h 01m
Spirit Airlines
Thu 5/284:20 pm
IAH
- MIA
Nonstop2h 28m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$140
This Southwest deal was found by Cheapflights users on 5/2. 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 5/145:30 am
MIA
- HOU
Nonstop2h 50m
Southwest
Tue 6/23:05 pm
HOU
- MIA
Nonstop2h 15m
Southwest
Deal found 5/2![Southwest logo]()
$343
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 May 5, 2026.
Search for one-way flight options from Key Largo to Houston. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Super.com deal was found by Cheapflights users on 4/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:15 am
MIA
- IAH
Nonstop3h 27m
Frontier
Deal found 4/30![Frontier logo]()
$43
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:34 am
MIA
- IAH
Nonstop3h 01m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$44
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:25 pm
MIA
- IAH
Nonstop2h 51m
Spirit Airlines
Deal found 5/1![Spirit Airlines logo]()
$48
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Fri 5/156:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Deal found 5/2![Frontier logo]()
$49
This Frontier deal was found by Cheapflights users on 4/30. 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.
Fri 7/36:00 am
MIA
- IAH
Nonstop3h 02m
Frontier
Deal found 4/30![Frontier logo]()
$52
This eDestinos deal was found by Cheapflights users on 5/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Deal found 5/2![Frontier logo]()
$58
This Travelocity deal was found by Cheapflights users on 4/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:25 pm
MIA
- IAH
Nonstop2h 51m
Spirit Airlines
Deal found 4/30![Spirit Airlines logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Sun 5/176:00 am
MIA
- IAH
Nonstop3h 18m
Frontier
Deal found 4/30![Frontier logo]()
$64
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:15 am
MIA
- HOU
Nonstop2h 50m
Southwest
Deal found 4/30![Southwest logo]()
$85
This Trip.com deal was found by Cheapflights users on 5/4. 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 6/238:17 am
MIA
- HOU
1 stop4h 55m
Delta
Deal found 5/4![Delta logo]()
$93
This Southwest deal was found by Cheapflights users on 5/4. 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 6/173:05 pm
MIA
- HOU
1 stop8h 05m
Southwest
Deal found 5/4![Southwest logo]()
$95
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 5/274:05 pm
MIA
- HOU
1 stop7h 21m
Delta
Deal found 4/30![Delta logo]()
$99
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 May 5, 2026.
Round-trip from | $85 (Orbitz) |
|---|---|
One-way from | $43 (Super.com) |
Popular in | March |
Cheapest in | October |
Average price | $168 |
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 May 5, 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 6/9
5:26 pm-10:48 pm
1 stop6h 22m
Houston George Bush Intcntl
Sat 6/20
8:37 pm-12:12 am
Nonstop2h 35m
$129
MiamiHouston
MIA - IAH
MIAIAH
Miami
Sun 5/24
11:24 am-1:25 pm
Nonstop3h 01m
Houston George Bush Intcntl
Mon 5/25
4:20 pm-7:48 pm
Nonstop2h 28m
$150
MiamiHouston
MIA - HOU
MIAHOU
Miami
Wed 7/15
5:45 am-7:20 am
Nonstop2h 35m
Houston Hobby
Wed 7/22
1:30 pm-9:50 pm
2 stops7h 20m
$184
MiamiHouston
MIA - IAH
MIAIAH
Miami
Sat 6/6
9:38 pm-7:34 am
2 stops34h 56m
Houston George Bush Intcntl
Fri 7/3
8:37 pm-12:12 am
Nonstop2h 35m
$187
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 7/15
10:06 pm-12:47 pm
1 stop15h 41m
Houston George Bush Intcntl
Wed 7/22
10:36 am-8:33 pm
1 stop8h 57m
$190
MiamiHouston
MIA - IAH
MIAIAH
Miami
Tue 6/16
1:38 pm-10:24 pm
1 stop9h 46m
Houston George Bush Intcntl
Tue 6/23
8:05 am-5:00 pm
1 stop7h 55m
$197
MiamiHouston
MIA - IAH
MIAIAH
Miami
Wed 6/17
6:05 pm-11:56 pm
1 stop6h 51m
Houston George Bush Intcntl
Tue 6/23
5:40 am-1:04 pm
1 stop6h 24m
$197
Quickest round-trip
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 5/21
5:30 am-7:20 am
Nonstop2h 50m
Houston Hobby
Mon 5/25
3:10 pm-6:25 pm
Nonstop2h 15m
$199
MiamiHouston
MIA - HOU
MIAHOU
Miami
Thu 5/28
5:30 am-7:20 am
Nonstop2h 50m
Houston Hobby
Mon 6/1
3:10 pm-6:25 pm
Nonstop2h 15m
$199
MiamiHouston
MIA - IAH
MIAIAH
Miami
Sat 5/30
6:33 am-3:52 pm
1 stop10h 19m
Houston George Bush Intcntl
Tue 6/2
8:29 am-4:46 pm
1 stop7h 17m
$208
Showing 1-10 of 39 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 May 5, 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 43% on airfare.
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 May 2, 2026.
Travelers seeking maximum savings on their Key Largo to Houston flight should consider departing on Saturday 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.
How much does it cost to fly round-trip from Key Largo to Houston?
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 May 5, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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.
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
7.9
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 May 5, 2026.
Popular flight searches
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Top 5 airlines flying from Key Largo to Houston
Discover the top 5 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 May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$130 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$67 | Average$155 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$107 | Average$240 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$107 | Average$243 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$107 | Average$278 | FlexibilityNo cancel fee | On-time69% |