Cheap Cape Air flights White Plains (HPN) to Nantucket (ACK)

Set the "Price (lowest to highest)" filter on Expedia to search for cheap Cape Air round-trip flights from HPN to ACK. Affordable one-way options are also on offer.**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.

For cheap Cape Air fares from Westchester County Airport (HPN) to Nantucket Memorial Airport (ACK), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect how much you pay. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**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.

Browse Cape Air's earliest flights from HPN to ACK by selecting the "Morning" and "Early Morning" filters. Not only will you get to your destination sooner, early departures also experience 20% fewer 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.

Top-tier customer service and the ability to rack up points through MileagePlus are the start of the reasons to depart from HPN to ACK with Cape Air. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* alongside Cape Air's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.