American Airlines Flight 4604 Deals & Information (2026/2027)

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 4604 Route Deals From $205

The cheapest prices found with in the last 7 days for return flights were $260 and $205 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 9 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$260 Roundtrip, found 10 hours ago
$260
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sat, Dec 12, priced at $260 found 10 hours ago
Thu, Dec 10 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$280 Roundtrip, found 10 hours ago
$280
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Dec 10 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sat, Dec 12, priced at $280 found 10 hours ago
Wed, Dec 9 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$315 Roundtrip, found 10 hours ago
$315
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sat, Dec 12, priced at $315 found 10 hours ago
Wed, Dec 9 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$335 Roundtrip, found 10 hours ago
$335
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Sat, Dec 12, priced at $335 found 10 hours ago

Frequently asked questions

What route does flight number AA4604 take?
AA4604 flies straight between Portland Intl. Jetport Airport (PWM) and O'Hare Airport in about 2 hours and 52 minutes. It can sometimes take other routes though, some of which may be multi-stop trips. Keep this in mind when booking your seat to avoid any confusion.
What kind of plane is on flight number AA4604?
If you're on flight AA4604 from Portland, ME Airport (PWM-Portland Intl. Jetport) to O'Hare Intl. Airport (ORD), you'll likely be jetting off on an Embraer 175. Flight AA4604 serves several routes, but this is the most popular one.
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 AA4604 flight with Travelocity, please visit our Customer Service Portal.