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

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American Airlines Flight 4578 Route Deals From $200

The cheapest prices found with in the last 7 days for return flights were $329 and $200 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 3 - Sat, Dec 5
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$329 Roundtrip, found 1 day ago
$329
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 3 from Piedmont Triad Intl. to LaGuardia, returning Sat, Dec 5, priced at $329 found 1 day ago
Fri, Dec 4 - Sun, Dec 6
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$335 Roundtrip, found 1 day ago
$335
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Dec 4 from Piedmont Triad Intl. to LaGuardia, returning Sun, Dec 6, priced at $335 found 1 day ago
Thu, Dec 3 - Sat, Dec 5
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$339 Roundtrip, found 1 day ago
$339
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 3 from Piedmont Triad Intl. to LaGuardia, returning Sat, Dec 5, priced at $339 found 1 day ago
Wed, Dec 2 - Mon, Dec 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$344 Roundtrip, found 13 hours ago
$344
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Dec 2 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 7, priced at $344 found 13 hours ago
Fri, Dec 11 - Mon, Dec 14
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$345 Roundtrip, found 17 hours ago
$345
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Fri, Dec 11 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 14, priced at $345 found 17 hours ago
Thu, Dec 3 - Sat, Dec 5
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$349 Roundtrip, found 1 day ago
$349
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 3 from Piedmont Triad Intl. to LaGuardia, returning Sat, Dec 5, priced at $349 found 1 day ago
Sat, Aug 21 - Mon, Aug 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$349 Roundtrip, found 1 day ago
$349
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 21 from Piedmont Triad Intl. to LaGuardia, returning Mon, Aug 30, priced at $349 found 1 day ago
Wed, Dec 2 - Mon, Dec 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$354 Roundtrip, found 13 hours ago
$354
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Dec 2 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 7, priced at $354 found 13 hours ago
Fri, Dec 11 - Mon, Dec 14
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$355 Roundtrip, found 17 hours ago
$355
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Fri, Dec 11 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 14, priced at $355 found 17 hours ago
Wed, Dec 2 - Mon, Dec 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$364 Roundtrip, found 13 hours ago
$364
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Dec 2 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 7, priced at $364 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.