American Airlines Flight AA478 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

American Airlines Flight 478 Route Deals From $129

The cheapest prices found with in the last 7 days for return flights were $257 and $129 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Thu, Aug 7
PHX
Sky Harbor Intl.
PHL
Philadelphia Intl.
$257 Roundtrip, found 1 hour ago
$257
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Jul 30 from Sky Harbor Intl. to Philadelphia Intl., returning Thu, Aug 7, priced at $257 found 1 hour ago

Frequently asked questions

What route does flight number AA478 take?
AA478 is used on multiple routes. Most commonly, AA478 flies straight from PHX to Philadelphia Airport. If this is your route, you’ll be up above the clouds for around 4 hours and 45 minutes.
How often is AA478 on time?
If you’re flying with American Airlines on flight number AA478 between Phoenix Sky Harbor Intl. Airport and Philadelphia Intl. Airport (PHL), your trip will be on time 94% of the time — when you’re running on a tight schedule, it’s a relief knowing that your airline does too. If there happens to be an unforeseen delay, the average set back is just 9 minutes. This flight has a 4.05-star rating.
What terminal does AA478 fly out of?
AA478 flights from Phoenix Sky Harbor Intl. Airport usually leave from Terminal 4. This flight number runs on a variety of routes, but the most popular one is Phoenix Sky Harbor Intl. Airport to Philadelphia Airport.
What kind of plane is on flight number AA478?
Chances are you’ll travel aboard an Airbus A321 if you’re booked on flight AA478 from PHX to PHL. This is the most commonly used type of aircraft on this popular route.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AA478 flight with Travelocity, please visit our Customer Service Portal.