Cheap flights from Islip to Houston (ISP - IAH)

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

All the information you need to plan the best ISP to IAH flight in 2021: compare Islip to Houston flight prices with the expected peak season, weather and rainfall in Houston.
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 109% 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)?

When flying from Islip to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Islip to Houston in June, July 2021

The best prices found for ISP to IAH flights for June, July
8 Jul - 12 Jul
$263pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
   
2 STOPS
ISP
Islip Long Island
8 Jul - 12 Jul
$289pp
ISP
Islip Long Island
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
   
2 STOPS
ISP
Islip Long Island
29 Jul - 1 Aug
$299pp
ISP
Islip Long Island
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
ISP
Islip Long Island

Islip to Houston 2021 flight deals

Cheap flights to Houston from Islip found for this year
27 Oct - 30 Oct
$235pp
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
29 Sep - 2 Oct
$238pp
ISP
Islip Long Island
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
   
2 STOPS
ISP
Islip Long Island
27 Oct - 31 Oct
$239pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
 
1 STOP
ISP
Islip Long Island

Last minute flights from Islip to Houston

Late deals on round-trip flights to Houston from Islip, departing today and this week
28 Jun - 4 Jul
$384pp
ISP
Islip Long Island
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
   
2 STOPS
ISP
Islip Long Island
28 Jun - 4 Jul
$388pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
   
2 STOPS
ISP
Islip Long Island
30 Jun - 8 Jul
$437pp
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

The cheapest one-way flights from Islip to Houston
7:02 am - 2:17 pm
Frontier
1 Stop
8h 15m
ISP - IAH
Frontier
$229
SmartFares
2:25 am - 6:46 pm
American Airlines
2 Stops
17h 21m
ISP - IAH
American Airlines
5:15 am - 5:45 pm
Multiple Airlines
3 Stops
13h 30m
ISP - IAH
Multiple Airlines
$1,989
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Islip</span> to <span class="emphasized">Houston</span> flights.

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 $300 on Cheapflights?

Yes, there are multiple flights from Islip to Houston for under $300. The cheapest flight booked recently is on American Airlines for just $235, but on average you can expect to pay $284.

Are there nonstop flights from Islip to Houston for under $200 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 $400?

There are currently 10+ open flights from Islip to Houston within the next 7 days for less than $400.

What days are nonstop flights available from Islip to Houston?

Nonstop flights can be found on the following days: Monday.

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 less than 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 fly from Islip to Houston in about 6h 53m. The time it takes to get you to your destination can typically vary by up to .

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

American Airlines, at $235, was found to be the cheapest airline from Islip to Houston. An alternate airline flying to your destination would be Frontier.

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 American Airlines ($118) and Frontier ($229).

Alternative routes for Islip to Houston

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Houston

Things to know before you go - useful duration and weather info for your trip from Islip to Houston.
Average temperature for June in Houston
82.4 °F
Avg rainfall for June in Houston
0.0 ″

Airports servicing Islip

Airports servicing Houston

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