$120 Cheap Frontier Airlines flights Tucson (TUS) to Philadelphia (PHL)

Landing cheap one-way Frontier Airlines flights from TUS to PHL from $120 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $228 for your next break.**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 one-way or return flights to Philadelphia in January or February. You could find cheaper fares with Frontier Airlines during these off-peak months.

To find cheap Frontier Airlines fares from Tucson Intl. Airport (TUS) to Philadelphia Intl. Airport (PHL), start searching one to three months before your intended departure. Securing 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 influence the overall price. Sunday tends to be 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.

To find out if there’s a direct route from TUS to PHL with Frontier Airlines or other carriers, select the “Nonstop” filter when browsing for flights.

To find the earliest departure from TUS to PHL with Frontier Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight generally means cancellations are less likely.**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.

Frontier Airlines flights from Tucson Intl. Airport (TUS) to Philadelphia land at Philadelphia Intl. Airport (PHL). This is the main gateway here.

A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to travel from TUS to PHL with Frontier Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside 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.

Depending on your ticket type, a fee typically applies if you cancel or reschedule your flight more than 24 hours after it’s confirmed. To find plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes while searching for flights. To learn more about canceling or modifying your reservation, head to “Trips,” select your flight and click on “Manage Booking.”