American Airlines Flight 4578 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 4578 Route Deals From $200

The cheapest prices found with in the last 7 days for return flights were $339 and $200 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 21 - Mon, Aug 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$339 Roundtrip, found 2 hours ago
$339
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 21 from Piedmont Triad Intl. to LaGuardia, returning Mon, Aug 30, priced at $339 found 2 hours ago
Sat, Aug 21 - Mon, Aug 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$349 Roundtrip, found 2 hours ago
$349
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 21 from Piedmont Triad Intl. to LaGuardia, returning Mon, Aug 30, priced at $349 found 2 hours ago
Fri, Dec 11 - Mon, Dec 14
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$356 Roundtrip, found 2 hours ago
$356
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Dec 11 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 14, priced at $356 found 2 hours ago
Sat, Aug 21 - Mon, Aug 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$359 Roundtrip, found 2 hours ago
$359
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Aug 21 from Piedmont Triad Intl. to LaGuardia, returning Mon, Aug 30, priced at $359 found 2 hours ago
Fri, Dec 11 - Mon, Dec 14
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$365 Roundtrip, found 2 hours ago
$365
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Dec 11 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 14, priced at $365 found 2 hours ago
Thu, Dec 3 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$379 Roundtrip, just found
$379
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 3 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $379 just found
Fri, Dec 4 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$386 Roundtrip, found 9 hours ago
$386
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Dec 4 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $386 found 9 hours ago
Thu, Dec 3 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$389 Roundtrip, just found
$389
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 3 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $389 just found
Fri, Nov 27 - Fri, Dec 4
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$397 Roundtrip, found 4 hours ago
$397
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, Nov 27 from Piedmont Triad Intl. to LaGuardia, returning Fri, Dec 4, priced at $397 found 4 hours ago
Wed, Dec 2 - Mon, Dec 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$415 Roundtrip, found 2 hours ago
$415
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 2 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 7, priced at $415 found 2 hours ago

Frequently asked questions

What route does flight number AA4578 take?
AA4578 is used on a number of routes. Mostly, AA4578 flies directly from PHL to PBI. If you've booked a seat on this route, you'll be traveling for about 2 hours and 54 minutes.
What kind of plane is on flight number AA4578?
It's likely you'll be aboard the Embraer 175 if you're going from PHL to PBI, one route used for flight AA4578.
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 AA4578 flight with Travelocity, please visit our Customer Service Portal.