$295 Cheap JetBlue Airways flights Phoenix (PHX) to Nantucket (ACK)

Scoring cheap one-way JetBlue Airways flights from PHX to ACK from $295 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our affordable return fares from $523 for your next exciting adventure.**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.

Look for cheap JetBlue Airways flights from Sky Harbor Intl. Airport (PHX) to Nantucket Memorial Airport (ACK) one to three months before your day of departure. 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. No matter the fare type and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be 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.

To find the earliest departure from PHX to ACK with JetBlue Airways, filter your results by "Morning" and "Early Morning." Booking an early flight usually means you'll experience 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.