Cheap flights from Islip to Houston (ISP - IAH)

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Home North America USA Texas Houston Cheap flights from Islip to Houston

How to find the cheapest flight from
Islip (ISP) to Houston (IAH)

What is the cheapest day to fly round-trip from Islip to Houston?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 51% when planning your travel around this day of the week.

How far in advance should I book a flight from Islip to Houston?

Travelers have found it’s best to book a flight 44 days in advance to save up to 26% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip to Houston 1-2 weeks in advance for as low as $118, or $157 for flights within the next 24 hours.

What is the cheapest month to fly from Islip to Houston?

The best pricing can be found in the month of February. Prices to Houston from Islip average $134. You can even find prices in February for less than $134, as users have found deals to Houston from as low as $68. The month of December appears to be one of the more expensive times to travel to Houston from Islip. Flying in the targeted month can save you up to 46%.

When is the cheapest time to fly from Islip to Houston (ISP - IAH)?

A simple way to save on the total cost of your ticket is to fly from Islip to Houston at noon. If you’re flexible enough to do this you can expect to save up to 60% on your trip compared to booking a flight in the morning.

Cheap flights from Islip to Houston in March, April 2021

27 Apr - 2 May
$133pp
ISP
Islip Long Island
Frontier
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ISP
Islip Long Island
27 Apr - 2 May
$156pp
ISP
Islip Long Island
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Multiple Airlines
   
2 STOPS
ISP
Islip Long Island
27 Apr - 2 May
$160pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ISP
Islip Long Island

Islip to Houston 2021 flight deals

27 Apr - 2 May
$133pp
ISP
Islip Long Island
Frontier
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ISP
Islip Long Island
27 Apr - 2 May
$156pp
ISP
Islip Long Island
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Multiple Airlines
   
2 STOPS
ISP
Islip Long Island
27 Apr - 2 May
$160pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ISP
Islip Long Island

Last minute flights from Islip to Houston

13 Mar - 14 Mar
$549pp
ISP
Islip Long Island
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
 
1 STOP
ISP
Islip Long Island
12 Mar - 15 Mar
$553pp
ISP
Islip Long Island
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
 
1 STOP
ISP
Islip Long Island

One-way flights to Houston from Islip

8:54 am - 3:43 am
Frontier
2 Stops
43h 49m
ISP - IAH
Frontier
$94
Kiwi.com
4:00 am - 3:09 pm
Multiple Airlines
1 Stop
12h 09m
ISP - IAH
Multiple Airlines
$127
FlyFar
2:15 am - 6:13 pm
American Airlines
3 Stops
16h 58m
ISP - IAH
American Airlines
$325

Related info for your journey

Flight FAQs

From Islip to Houston

Are flight prices decreasing from Islip to Houston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Islip and Houston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Islip Long Island to Houston George Bush Intcntl have flexible changes due to COVID-19?

One of the carriers operating flights from Islip Long Island to Houston George Bush Intcntl that may be offering flexible change policies is American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Islip to Houston for under $200 on Cheapflights?

Yes, there are multiple flights from Islip to Houston for under $200. The cheapest flight booked recently is on Frontier for just $133, but on average you can expect to pay $266.

Are there nonstop flights from Islip to Houston for under $100 on Cheapflights?

There are no nonstop flights from Islip to Houston, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Islip to Houston for under $600?

There are currently 2+ open flights from Islip to Houston within the next 7 days for less than $600.

What days are nonstop flights available from Islip to Houston?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Saturday.

Does it rain more in Islip or Houston?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Islip is typically similar to Houston. We can gather that this will continue over the next 15 days.

Is Islip weather warmer or cooler than Houston?

Our data indicates that the weather will be 86 °F on average in the month of August. The temperature in Houston is typically hotter than in Islip. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Islip to Houston?

Airlines like American Airlines and Frontier fly from Islip to Houston in about 5h 53m. The time it takes to get you to your destination can typically vary by up to 17h 45m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Islip to Houston round-trip?

Frontier, at $133, was found to be the cheapest airline from Islip to Houston. An alternate airline flying to your destination would be American Airlines.

What are the cheapest airlines to fly from Islip to Houston one-way?

The cheapest airlines for a one-way flight from Islip to Houston are Frontier ($94) and American Airlines ($139).

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Alternative routes for Islip to Houston

Buffalo to El Paso from $313 pp

Destination information for Houston

Average temperature for March in Houston
66.2 °F

Airports servicing Islip

Islip (ISP)

Airports servicing Houston

Houston (IAH)

Popular flight searches

Home North America USA Texas Houston Cheap flights from Islip to Houston