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

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American Airlines Flight 4578 Route Deals From $206

The cheapest prices found with in the last 7 days for return flights were $306 and $206 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 22 - Tue, Jul 28
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$306 Roundtrip, found 1 day ago
$306
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jul 22 from Piedmont Triad Intl. to LaGuardia, returning Tue, Jul 28, priced at $306 found 1 day ago
Tue, Jul 28 - Sun, Aug 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$339 Roundtrip, found 10 hours ago
$339
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sun, Aug 2, priced at $339 found 10 hours ago
Tue, Jul 28 - Sat, Aug 1
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$344 Roundtrip, found 19 hours ago
$344
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sat, Aug 1, priced at $344 found 19 hours ago
Tue, Jul 28 - Sun, Aug 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$346 Roundtrip, found 10 hours ago
$346
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sun, Aug 2, priced at $346 found 10 hours ago
Tue, Jul 28 - Sun, Aug 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$349 Roundtrip, found 10 hours ago
$349
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sun, Aug 2, priced at $349 found 10 hours ago
Tue, Jul 28 - Sat, Aug 1
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$354 Roundtrip, found 19 hours ago
$354
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sat, Aug 1, priced at $354 found 19 hours ago
Tue, Jul 28 - Sun, Aug 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$356 Roundtrip, found 10 hours ago
$356
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sun, Aug 2, priced at $356 found 10 hours ago
Wed, Jul 22 - Tue, Jul 28
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$362 Roundtrip, found 1 day ago
$362
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jul 22 from Piedmont Triad Intl. to LaGuardia, returning Tue, Jul 28, priced at $362 found 1 day ago
Tue, Jul 28 - Sat, Aug 1
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$364 Roundtrip, found 19 hours ago
$364
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sat, Aug 1, priced at $364 found 19 hours ago
Thu, Jul 9 - Sun, Jul 12
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$369 Roundtrip, found 1 hour ago
$369
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Jul 9 from Piedmont Triad Intl. to LaGuardia, returning Sun, Jul 12, priced at $369 found 1 hour 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.