American Airlines Flight 4578 Deals & Information (2026/2027)

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American Airlines Flight 4578 Route Deals From $184

The cheapest prices found with in the last 7 days for return flights were $199 and $184 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Apr 15 - Wed, Apr 22
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Apr 15 from Piedmont Triad Intl. to LaGuardia, returning Wed, Apr 22, priced at $199 found 1 day ago
Sat, Feb 28 - Mon, Mar 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$204 Roundtrip, found 5 days ago
$204
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Feb 28 from Piedmont Triad Intl. to LaGuardia, returning Mon, Mar 2, priced at $204 found 5 days ago
Tue, Mar 3 - Sat, Mar 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Mar 3 from Piedmont Triad Intl. to LaGuardia, returning Sat, Mar 7, priced at $222 found 2 days ago
Fri, Apr 24 - Tue, Apr 28
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$231 Roundtrip, found 1 day ago
$231
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, Apr 28, priced at $231 found 1 day ago
Fri, Apr 17 - Sun, Apr 19
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Apr 17 from Piedmont Triad Intl. to LaGuardia, returning Sun, Apr 19, priced at $244 found 3 days ago
Mon, Mar 23 - Sat, Mar 28
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$252 Roundtrip, found 2 days ago
$252
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Mar 23 from Piedmont Triad Intl. to LaGuardia, returning Sat, Mar 28, priced at $252 found 2 days ago
Fri, Apr 24 - Tue, Apr 28
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$255 Roundtrip, found 1 day ago
$255
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, Apr 28, priced at $255 found 1 day ago
Tue, Jun 2 - Sat, Jun 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$264 Roundtrip, found 13 hours ago
$264
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Tue, Jun 2 from Piedmont Triad Intl. to LaGuardia, returning Sat, Jun 6, priced at $264 found 13 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.