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

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American Airlines Flight 4578 Route Deals From $165

The cheapest prices found with in the last 7 days for return flights were $329 and $165 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 3 - Tue, Aug 17
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$329 Roundtrip, found 6 hours ago
$329
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Aug 3 from Piedmont Triad Intl. to LaGuardia, returning Tue, Aug 17, priced at $329 found 6 hours ago
Fri, Dec 4 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$335 Roundtrip, found 3 hours ago
$335
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Dec 4 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $335 found 3 hours ago
Tue, Aug 3 - Tue, Aug 17
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$339 Roundtrip, found 6 hours ago
$339
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Aug 3 from Piedmont Triad Intl. to LaGuardia, returning Tue, Aug 17, priced at $339 found 6 hours ago
Sat, Dec 5 - Tue, Dec 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$345 Roundtrip, found 3 days ago
$345
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Dec 5 from Piedmont Triad Intl. to LaGuardia, returning Tue, Dec 8, priced at $345 found 3 days ago
Tue, Aug 3 - Tue, Aug 17
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$349 Roundtrip, found 6 hours ago
$349
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Aug 3 from Piedmont Triad Intl. to LaGuardia, returning Tue, Aug 17, priced at $349 found 6 hours ago
Fri, Dec 4 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$355 Roundtrip, found 3 hours ago
$355
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Dec 4 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $355 found 3 hours ago
Fri, Dec 4 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$361 Roundtrip, found 3 hours ago
$361
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Dec 4 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $361 found 3 hours ago
Tue, Aug 3 - Tue, Aug 17
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$374 Roundtrip, found 6 hours ago
$374
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Aug 3 from Piedmont Triad Intl. to LaGuardia, returning Tue, Aug 17, priced at $374 found 6 hours ago
Thu, Dec 10 - Tue, Dec 15
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$381 Roundtrip, found 9 hours ago
$381
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Thu, Dec 10 from Piedmont Triad Intl. to LaGuardia, returning Tue, Dec 15, priced at $381 found 9 hours ago
Mon, Nov 16 - Mon, Jan 25
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$382 Roundtrip, found 5 days ago
$382
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Nov 16 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jan 25, priced at $382 found 5 days 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.