Cheap Frontier Airlines flights Pensacola (PNS) to Islip (ISP)

Use the “Price (lowest to highest)” filter on Expedia to find cheap Frontier Airlines round-trip flights from PNS to ISP. Affordable one-way tickets are available as well.**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.

January is one of the cheapest months to travel to Islip with Frontier Airlines. You could also find excellent prices on return and one-way tickets in February.

Start searching one to three months ahead of your travel date to score cheap fares on Frontier Airlines flights from Pensacola Intl. Airport (PNS) to MacArthur Airport (ISP). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*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.

To figure out if there’s a direct trip from PNS to ISP with Frontier Airlines or other airlines, select the “Nonstop” filter when looking for flights.

Sort your results by “Early Morning” and “Morning” to find the earliest departures from PNS to ISP. Taking off early means you’re 20% less likely to experience cancellations.**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.

MacArthur Airport (ISP) is the primary Islip gateway for Frontier Airlines flights from Pensacola Intl. Airport (PNS).

Offering a rewarding loyalty program, Frontier Airlines is a favorite of many travelers flying from PNS to ISP. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee generally applies if you change or cancel your booking more than 24 hours after it’s been confirmed. To secure plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes while searching for flights. For more details on canceling or modifying your reservation, head to “Trips,” select your flight and tick “Manage Booking.”