$166+ Cheap flights from Houston to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — ISP
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Islip 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.Cheap flight deals from Houston to Islip
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Cheapest flights from Houston to IslipExplore the most affordable flight options available from Houston to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Houston to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This Orbitz deal was found by Cheapflights users on 10/30. 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 11/1912:27 pm -
1 stop26h 18m
Sun 11/224:40 pm -
1 stop8h 45m
Deal found 10/30![Frontier logo]()
$340
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:01 am -
1 stop9h 44m
Tue 12/112:00 pm -
2 stops29h 00m
Deal found 11/2![Multiple Airlines logo]()
$413
This Frontier deal was found by Cheapflights users on 11/2. 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.
Fri 11/205:01 am -
1 stop9h 44m
Fri 11/274:40 pm -
1 stop8h 45m
Deal found 11/2![Frontier logo]()
$419
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:27 pm -
1 stop28h 04m
Mon 11/166:00 am -
1 stop11h 56m
Deal found 10/30![Multiple Airlines logo]()
$443
This Frontier deal was found by Cheapflights users on 11/3. 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 11/235:01 am -
1 stop9h 44m
Fri 11/274:40 pm -
1 stop8h 45m
Deal found 11/3![Frontier logo]()
$449
This Southwest deal was found by Cheapflights users on 11/1. 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.
Mon 11/167:30 am -
2 stops7h 45m
Fri 11/205:40 pm -
1 stop6h 05m
Deal found 11/1![Southwest logo]()
$583
This Southwest deal was found by Cheapflights users on 11/3. 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 11/248:30 pm -
1 stop11h 15m
Tue 12/14:05 pm -
1 stop5h 50m
Deal found 11/3![Southwest logo]()
$623
This Southwest deal was found by Cheapflights users on 11/4. 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 11/124:20 pm -
1 stop5h 30m
Wed 11/184:05 pm -
1 stop5h 50m
Deal found 11/4![Southwest logo]()
$741
This Southwest deal was found by Cheapflights users on 11/1. 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.
Thu 11/124:20 pm -
1 stop5h 30m
Thu 11/194:05 pm -
1 stop5h 50m
Deal found 11/1![Southwest logo]()
$742
Best flights from Houston to IslipDiscover carefully curated flight deals from Houston to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Houston to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:01 am -
1 stop9h 44m
Tue 12/112:00 pm -
2 stops29h 00m
Deal found 11/2![Multiple Airlines logo]()
$413
This JetBlue deal was found by Cheapflights users on 11/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:10 pm -
1 stop8h 30m
Tue 12/86:00 am -
1 stop7h 18m
Deal found 11/3![JetBlue logo]()
$519
This Mytrip deal was found by Cheapflights users on 10/30. 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 11/199:14 pm -
2 stops17h 31m
Sun 11/224:40 pm -
2 stops20h 39m
Deal found 10/30![Frontier logo]()
$573
This Southwest deal was found by Cheapflights users on 11/1. 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.
Mon 11/166:30 am -
2 stops8h 45m
Fri 11/201:35 pm -
2 stops8h 55m
Deal found 11/1![Southwest logo]()
$588
This CheapOair deal was found by Cheapflights users on 11/4. 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.
Sat 11/147:05 am -
1 stop13h 32m
Sun 11/156:33 pm -
1 stop28h 04m
Deal found 11/4![Multiple Airlines logo]()
$568
This JetBlue deal was found by Cheapflights users on 11/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:45 pm -
1 stop7h 52m
Thu 11/196:00 am -
1 stop10h 28m
Deal found 11/2![JetBlue logo]()
$618
This Southwest deal was found by Cheapflights users on 11/3. 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 11/248:30 pm -
1 stop11h 15m
Tue 12/14:05 pm -
1 stop5h 50m
Deal found 11/3![Southwest logo]()
$623
This Frontier deal was found by Cheapflights users on 10/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:01 am -
1 stop9h 44m
Sun 11/294:40 pm -
1 stop8h 45m
Deal found 10/31![Frontier logo]()
$664
This JetBlue deal was found by Cheapflights users on 11/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:45 pm -
1 stop7h 52m
Mon 11/236:00 am -
1 stop10h 28m
Deal found 11/4![JetBlue logo]()
$618
This JetBlue deal was found by Cheapflights users on 11/1. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:45 pm -
1 stop7h 52m
Sun 11/226:00 am -
1 stop7h 38m
Deal found 11/1![JetBlue logo]()
$634
This JetBlue deal was found by Cheapflights users on 11/1. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:59 pm -
1 stop7h 51m
Sun 12/206:00 am -
1 stop7h 07m
Deal found 11/1![JetBlue logo]()
$634
This JetBlue deal was found by Cheapflights users on 11/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/261:30 pm -
1 stop8h 10m
Fri 11/279:40 am -
1 stop6h 48m
Deal found 11/2![JetBlue logo]()
$634
This Southwest deal was found by Cheapflights users on 11/4. 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 11/142:50 pm -
1 stop6h 00m
Sun 11/151:35 pm -
2 stops10h 55m
Deal found 11/4![Southwest logo]()
$872
This JetBlue deal was found by Cheapflights users on 11/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/121:15 pm -
1 stop7h 41m
Sat 1/166:00 am -
1 stop10h 55m
Deal found 11/3![JetBlue logo]()
$684
Last-minute flights from Houston to IslipDiscover last-minute flight deals from Houston to Islip. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Islip. Data last updated November 4, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 11/4. 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 11/124:20 pm -
1 stop5h 30m
Wed 11/184:05 pm -
1 stop5h 50m
Deal found 11/4![Southwest logo]()
$741
This Southwest deal was found by Cheapflights users on 11/1. 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.
Thu 11/124:20 pm -
1 stop5h 30m
Thu 11/194:05 pm -
1 stop5h 50m
Deal found 11/1![Southwest logo]()
$742
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:27 pm -
1 stop28h 04m
Mon 11/166:00 am -
1 stop11h 56m
Deal found 10/30![Multiple Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 11/1. 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.
Mon 11/167:30 am -
2 stops7h 45m
Fri 11/205:40 pm -
1 stop6h 05m
Deal found 11/1![Southwest logo]()
$583
This Orbitz deal was found by Cheapflights users on 10/30. 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 11/1912:27 pm -
1 stop26h 18m
Sun 11/224:40 pm -
1 stop8h 45m
Deal found 10/30![Frontier logo]()
$340
This Frontier deal was found by Cheapflights users on 11/2. 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.
Fri 11/205:01 am -
1 stop9h 44m
Fri 11/274:40 pm -
1 stop8h 45m
Deal found 11/2![Frontier logo]()
$419
This Frontier deal was found by Cheapflights users on 11/3. 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 11/235:01 am -
1 stop9h 44m
Fri 11/274:40 pm -
1 stop8h 45m
Deal found 11/3![Frontier logo]()
$449
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Tue 11/245:01 am -
1 stop9h 44m
Tue 12/112:00 pm -
2 stops29h 00m
Deal found 11/2![Multiple Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 11/3. 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 11/248:30 pm -
1 stop11h 15m
Tue 12/14:05 pm -
1 stop5h 50m
Deal found 11/3![Southwest logo]()
$623
One-way flights from Houston to IslipSearch for one-way flight options from Houston to Islip. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Houston to Islip. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Frontier deal was found by Cheapflights users on 11/1. 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.
Tue 11/245:01 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$166
This Frontier deal was found by Cheapflights users on 11/3. 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 11/255:01 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$186
This Frontier deal was found by Cheapflights users on 11/2. 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.
Fri 11/205:01 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/255:01 am -
2 stops11h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$233
This Frontier deal was found by Cheapflights users on 11/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:01 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/246:09 pm -
3 stops22h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$244
This Southwest deal was found by Cheapflights users on 11/3. 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 11/254:35 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Southwest logo]()
$257
This JetBlue deal was found by Cheapflights users on 11/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/261:30 pm -
1 stop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![JetBlue logo]()
$258
This JetBlue deal was found by Cheapflights users on 11/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/310:09 am -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![JetBlue logo]()
$261
This Frontier deal was found by Cheapflights users on 11/2. 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.
Thu 12/172:22 pm -
2 stops19h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$298
This Southwest deal was found by Cheapflights users on 11/3. 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 11/248:30 pm -
1 stop11h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Southwest logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/2410:50 am -
3 stops46h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$688
Find flight deals from Houston to Islip
Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 4, 2026.
Round-trip from | $340 (Frontier) |
|---|---|
One-way from | $166 (Frontier) |
Popular in | December |
Cheapest in | January |
Average price | $356 |
Cheapflights Fare Finder
Customize your flight search to find flights from Houston to Islip 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 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Houston to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Tue 11/24
5:01 am-3:45 pm
1 stop9h 44m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$166
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Fri 11/27
5:01 am-3:45 pm
1 stop9h 44m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$242
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Tue 11/24
6:09 pm-5:33 pm
3 stops22h 24m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$244
Quickest round-trip
HoustonIslip
HOU Houston Hobby - ISP Islip Long Island
HOUISP
Houston Hobby
Wed 11/25
4:35 pm-11:40 pm
1 stop6h 05m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$257
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Thu 11/26
1:30 pm-10:40 pm
1 stop8h 10m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$258
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Wed 3/3
10:09 am-5:29 pm
1 stop6h 20m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$261
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Thu 12/17
2:22 pm-10:31 am
2 stops19h 09m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$298
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Wed 11/25
6:09 pm-3:45 pm
2 stops44h 36m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$332
HoustonIslip
IAH Houston George Bush Intcntl - ISP Islip Long Island
IAHISP
Houston George Bush Intcntl
Wed 11/18
12:45 pm-9:37 pm
1 stop7h 52m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$375
HoustonIslip
HOU Houston Hobby - ISP Islip Long Island
HOUISP
Houston Hobby
Tue 11/24
2:30 pm-11:50 pm
2 stops8h 20m
Islip Long Island
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$379
Showing 1-10 of 25 resultsSorted by cheapest first
Best time to book a flight from Houston to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Houston with our price prediction graph.
HO1-ISP
IAH-ISP
HOU-ISP
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 Houston to Islip
HO1-ISP
IAH-ISP
HOU-ISP
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Islip
Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated November 4, 2026.
See what other customers who have flown with Southwest from Houston to Islip have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from Houston to Islip. 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 Houston to Islip
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Other flights to Islip
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Houston and Islip flights
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Top airline flying from Houston to Islip
Discover the top airline that operate flights from Houston to Islip. 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 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$491 | FlexibilityNo cancel fee | On-time63% |