$86 Cheap Frontier Airlines flights Tampa (TPA) to Islip (ISP)

Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap Frontier Airlines round-trip flights from $123 from TPA to ISP. Affordable one-way options from $86 are also available.**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.

Start searching one to three months ahead of your departure date to score cheap fares on Frontier Airlines flights from Tampa Intl. Airport (TPA) to MacArthur Airport (ISP). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to 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 trips.*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.

The first flight from TPA to ISP with Frontier Airlines leaves at 5:10AM UTC-5. You'll land at 7:54AM UTC-5. The final Frontier Airlines flight of the day leaves at 4:35PM UTC-5 and arrives at 7:23PM UTC-5. With around 20% fewer cancellations for departures before midday, setting off early is typically the smartest option.**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.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to depart from TPA to ISP with Frontier Airlines. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to Frontier Airlines's loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.