$99 Cheap Frontier Airlines flights Houston (HOU) to Islip (ISP)

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$99 Cheap Frontier Airlines flights Houston (HOU) to Islip (ISP)

Prices were available within the past 7 days and start at $99 for one-way flights and $183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flights from Houston (IAH) to Islip (ISP)
Origin airport
George Bush Intercontinental
Destination airport
MacArthur
Airlines serving
Southwest Airlines
Popular airline
Southwest Airlines
Distance
1452 mi
Average flight time
5 hours 30 mins

Frequently asked questions

How much is a Frontier Airlines flight from William P. Hobby Airport (HOU) to MacArthur Airport (ISP)?
Finding cheap one-way Frontier Airlines flights from HOU to ISP from $99 on Expedia is easy --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $183 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from HOU to ISP with Frontier Airlines?
Frontier Airlines flights to Islip are usually more affordable in the quieter months of January and February. Whether you're searching for a round-trip or one-way ticket, you could land a better deal then.
What is the cheapest time to book flights from William P. Hobby Airport (HOU) to MacArthur Airport (ISP) with Frontier Airlines?
Look for affordable Frontier Airlines flights from William P. Hobby Airport (HOU) to MacArthur Airport (ISP) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the ideal day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from William P. Hobby Airport (HOU) to MacArthur Airport (ISP)?
Simply enter your dates, hit search and select "Nonstop" on Expedia to browse any direct flights from HOU to ISP with Frontier Airlines or other carriers.
What is the earliest Frontier Airlines flight from HOU to ISP?
Find Frontier Airlines's earliest flights from HOU to ISP by selecting our "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Islip?
MacArthur Airport (ISP) is the main Islip gateway for Frontier Airlines flights from William P. Hobby Airport (HOU).
Why fly with Frontier Airlines from HOU to ISP?
A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to leave from HOU to ISP with Frontier Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* on top of Frontier Airlines's loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from William P. Hobby Airport (HOU) to MacArthur Airport (ISP)?
In most cases, you can cancel or reschedule your flight, although additional charges may apply if your booking was made more than 24 hours ago. Want to keep your options open? Make use of Expedia's "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you have to alter your plans. To make changes, head to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.