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

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American Airlines Flight 4578 Route Deals From $193

The cheapest prices found with in the last 7 days for return flights were $239 and $193 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 19 - Tue, Aug 25
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$239 Roundtrip, found 22 hours ago
$239
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Aug 19 from Piedmont Triad Intl. to LaGuardia, returning Tue, Aug 25, priced at $239 found 22 hours ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Jun 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $243 found 3 days ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$253 Roundtrip, found 3 days ago
$253
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Jun 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $253 found 3 days ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$263 Roundtrip, found 3 days ago
$263
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Jun 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $263 found 3 days ago
Fri, Apr 24 - Tue, May 26
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$263 Roundtrip, found 7 hours ago
$263
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, May 26, priced at $263 found 7 hours ago
Fri, Apr 24 - Tue, May 26
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$264 Roundtrip, found 7 hours ago
$264
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, May 26, priced at $264 found 7 hours ago
Fri, Apr 17 - Sun, Apr 19
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$294 Roundtrip, found 5 hours ago
$294
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Fri, Apr 17 from Piedmont Triad Intl. to LaGuardia, returning Sun, Apr 19, priced at $294 found 5 hours ago
Fri, Apr 24 - Tue, May 26
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$315 Roundtrip, found 7 hours ago
$315
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, May 26, priced at $315 found 7 hours ago
Fri, Apr 24 - Tue, May 26
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$315 Roundtrip, found 7 hours ago
$315
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Apr 24 from Piedmont Triad Intl. to LaGuardia, returning Tue, May 26, priced at $315 found 7 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.