American Airlines Flight 4578 Deals & Information (2025/2026)

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American Airlines Flight 4578 Route Deals From $175

The cheapest prices found with in the last 7 days for return flights were $189 and $175 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 30 - Mon, Feb 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$189 Roundtrip, found 15 hours ago
$189
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Fri, Jan 30 from Piedmont Triad Intl. to LaGuardia, returning Mon, Feb 2, priced at $189 found 15 hours ago
Fri, Dec 5 - Mon, Dec 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$194 Roundtrip, found 1 day ago
$194
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Dec 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Dec 8, priced at $194 found 1 day ago
Tue, Nov 4 - Tue, Nov 11
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 4 from Piedmont Triad Intl. to LaGuardia, returning Tue, Nov 11, priced at $197 found 6 days ago
Fri, Nov 7 - Mon, Nov 10
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$202 Roundtrip, found 3 days ago
$202
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Nov 7 from Piedmont Triad Intl. to LaGuardia, returning Mon, Nov 10, priced at $202 found 3 days ago
Fri, Jan 30 - Mon, Feb 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$224 Roundtrip, found 15 hours ago
$224
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Fri, Jan 30 from Piedmont Triad Intl. to LaGuardia, returning Mon, Feb 2, priced at $224 found 15 hours ago
Wed, Nov 19 - Mon, Nov 24
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Nov 19 from Piedmont Triad Intl. to LaGuardia, returning Mon, Nov 24, priced at $228 found 1 hour ago
Tue, Nov 4 - Tue, Nov 11
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$232 Roundtrip, found 6 days ago
$232
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 4 from Piedmont Triad Intl. to LaGuardia, returning Tue, Nov 11, priced at $232 found 6 days ago
Tue, Nov 4 - Tue, Nov 11
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$237 Roundtrip, found 6 days ago
$237
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 4 from Piedmont Triad Intl. to LaGuardia, returning Tue, Nov 11, priced at $237 found 6 days ago
Fri, Nov 7 - Mon, Nov 10
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Nov 7 from Piedmont Triad Intl. to LaGuardia, returning Mon, Nov 10, priced at $242 found 3 days ago
Wed, Dec 10 - Sat, Dec 13
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Dec 10 from Piedmont Triad Intl. to LaGuardia, returning Sat, Dec 13, priced at $243 found 3 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.