$172 Cheap United flights Philadelphia (PHL) to Tucson (TUS)

View $172 flight on Wed, Aug 20, 2025Opens in a new window

$172 Cheap United flights Philadelphia (PHL) to Tucson (TUS)

Prices were available within the past 7 days and start at $172 for one-way flights and $321 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jul 30 - Thu, Jul 31
PHL
Philadelphia
TUS
Tucson
$321 Roundtrip, found 2 days ago
$321
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 30 from Philadelphia to Tucson, returning Thu, Jul 31, priced at $321 found 2 days ago
United
Thu, Aug 21 - Mon, Aug 25
PHL
Philadelphia
TUS
Tucson
$343 Roundtrip, found 14 hours ago
$343
Roundtrip
found 14 hours ago
Select United flight, departing Thu, Aug 21 from Philadelphia to Tucson, returning Mon, Aug 25, priced at $343 found 14 hours ago
Flights from Philadelphia (PHL) to Tucson (TUS)
Origin airport
Philadelphia Intl.
Destination airport
Tucson Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
2051 mi

Frequently asked questions

How much is a United Airlines flight from Philadelphia Intl. Airport (PHL) to Tucson Intl. Airport (TUS)?
Landing cheap one-way United Airlines flights from PHL to TUS from $172 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $321 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.
What is the cheapest month to fly from PHL to TUS with United Airlines?
United Airlines flights to Tucson tend to be cheaper in the off-peak months of June and July. Whether you're searching for a one-way or round-trip ticket, you could score a better deal then.
What is the cheapest time to book flights from Philadelphia Intl. Airport (PHL) to Tucson Intl. Airport (TUS) with United Airlines?
Look for affordable United Airlines flights from Philadelphia Intl. Airport (PHL) to Tucson Intl. Airport (TUS) 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 class 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.
Does United Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to Tucson Intl. Airport (TUS)?
To find out if there's a direct journey from PHL to TUS with United Airlines or other airlines, select the "Nonstop" filter when looking for flights.
What is the earliest United Airlines flight from PHL to TUS?
Browse United Airlines's earliest flights from PHL to TUS by selecting our "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures are also 20% less likely to be canceled.**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.
What airports does United Airlines fly into in Tucson?
Tucson Intl. Airport (TUS) is the main Tucson hub for United Airlines flights from Philadelphia Intl. Airport (PHL).
Why fly with United Airlines from PHL to TUS?
Journey from PHL to TUS with United Airlines and you'll enjoy a range of benefits including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Philadelphia Intl. Airport (PHL) to Tucson Intl. Airport (TUS)?
Depending on your ticket type, a fee will generally apply if you change or cancel your flight more than 24 hours after it has been confirmed. To secure tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when you look for flights. To learn more about canceling or modifying your reservation, head to "Trips," select your flight and tick "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.