$137 Find Cheap Flights from Islip to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Houston departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Houston, as well as popular online travel agencies
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Cheap Flights from Islip to Houston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Houston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Islip to Houston

KAYAK's recommended round-trip deals from the most popular airlines that fly from Islip to Houston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
7:15 pm - 10:37 amISP-IAH
16h 22m1 stop
Frontier Logo
9:05 pm - 10:12 amIAH-ISP
12h 07m1 stop
$261Frontier
Find Deal
Tue, May 13 - Wed, May 14
Frontier Logo
8:51 am - 4:08 pmISP-IAH
8h 17m1 stop
Frontier Logo
9:30 pm - 7:51 amIAH-ISP
9h 21m1 stop
$300Frontier
Find Deal
Thu, Jun 5 - Sun, Jun 8
Frontier Logo
8:21 pm - 10:38 amISP-IAH
15h 17m1 stop
Frontier Logo
9:33 pm - 1:05 pmIAH-ISP
14h 32m1 stop
$301Frontier
Find Deal
Tue, May 27 - Thu, May 29
Southwest Logo
5:45 pm - 11:15 pmISP-HOU
6h 30m1 stop
Southwest Logo
7:15 pm - 9:10 amHOU-ISP
12h 55m1 stop
$325Southwest
Find Deal
Mon, Jul 21 - Tue, Jul 22
Southwest Logo
5:05 am - 12:40 pmISP-HOU
8h 35m2 stops
Southwest Logo
7:15 pm - 9:10 amHOU-ISP
12h 55m1 stop
$331Southwest
Find Deal
Mon, Jul 21 - Tue, Jul 22
Frontier Logo
8:21 pm - 4:11 pmISP-IAH
20h 50m1 stop
Frontier Logo
8:56 pm - 7:36 pmIAH-ISP
21h 40m1 stop
$332Frontier
Find Deal
Fri, May 30 - Fri, Jun 13
Frontier Logo
8:21 pm - 4:01 pmISP-IAH
20h 40m1 stop
Frontier Logo
8:42 pm - 7:26 pmIAH-ISP
21h 44m1 stop
$333Frontier
Find Deal
Fri, May 23 - Mon, May 26
Southwest Logo
3:05 pm - 8:50 pmISP-HOU
6h 45m1 stop
Southwest Logo
10:30 am - 5:00 pmHOU-ISP
5h 30m1 stop
$337Southwest
Find Deal
Fri, Aug 22 - Sun, Aug 24
Southwest Logo
3:05 pm - 8:50 pmISP-HOU
6h 45m1 stop
Southwest Logo
9:35 am - 7:50 pmHOU-ISP
9h 15m2 stops
$347Southwest
Find Deal
Fri, Aug 22 - Sun, Aug 24
 Logo
3:59 pm - 12:07 amISP-IAH
33h 08m3 stops
 Logo
8:44 pm - 1:15 pmIAH-ISP
15h 31m3 stops
Fri, May 23 - Mon, May 26
Useful Info

KAYAK's insights & trends for Islip to Houston flights

Get data-powered insights and trends into flights from Islip to Houston to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Islip to Houston?

The average price of all round-trip flights from Islip to Houston clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Islip to Houston, look for departures on Saturdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Houston, Thursday is the cheapest day to fly and Tuesday is the most expensive.

Good to know

Cheapest flight$137
Flight from Islip to Houston George Bush Airport

When to book flights from Islip to Houston

Are your dates flexible? Find out the best times to travel from Islip to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to Houston

  • What is the cheapest flight from Islip to Houston?

    In the last 3 days, the lowest price for a flight from Islip to Houston was $137 for a one-way ticket and $261 for a round-trip.

  • Do I need a passport to fly between Islip and Houston?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Islip and on arrival in Houston.

  • Which airports will I be using when flying from Islip to Houston?

    When flying out of Islip you will be using Islip Long Island. You will be landing at one of these airports: Houston Hobby or Houston George Bush Intcntl.

  • Which aircraft models fly most regularly from Islip to Houston?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Houston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Houston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Houston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Houston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston with an airline and back to Islip with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Houston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Islip to Houston

 
See real verified KAYAK customer reviews for airlines flying from Islip to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Houston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
7.6Entertainment
8.6Crew
8.0Comfort
7.1Food
Airline reviews

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

2.0 MediocreAnonymous, Dec 2024MCI - DAL
Read more Southwest reviews

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

It was 2 hours 45 minutes late, for no apparently clear reason.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

It went well. Plane wasn't full. Will be great when assigned seating is in place

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Easy to book and to get check in and get on and off.

First time I’ve ever missed a flight and it was an international flight.. Southwest put me on the next flight and it was the best experience possible.

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Southwest is amazing. The only issues I would have to say is. I don't like the unassigned seating, and the fact that the flight is completely sold out. It makes for a very tight fit. Other than that. Crew was great fun professional and attentive.

Everything you need to know for your flight from Islip to Houston

Information on your arrival and departure airports

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