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

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American Airlines Flight 4578 Route Deals From $205

The cheapest prices found with in the last 7 days for return flights were $255 and $205 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 10 - Mon, Jul 13
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$255 Roundtrip, found 21 hours ago
$255
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Fri, Jul 10 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jul 13, priced at $255 found 21 hours ago
Fri, Jul 10 - Mon, Jul 13
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$265 Roundtrip, found 21 hours ago
$265
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Fri, Jul 10 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jul 13, priced at $265 found 21 hours ago
Fri, Jul 10 - Mon, Jul 13
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$275 Roundtrip, found 21 hours ago
$275
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Fri, Jul 10 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jul 13, priced at $275 found 21 hours ago
Thu, Jun 4 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Jun 4 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $279 found 2 days ago
Sat, Dec 12 - Tue, Dec 15
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 12 from Piedmont Triad Intl. to LaGuardia, returning Tue, Dec 15, priced at $284 found 1 day ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$286 Roundtrip, found 3 days ago
$286
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 $286 found 3 days ago
Thu, Jun 4 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Jun 4 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $289 found 2 days ago
Fri, Jul 10 - Sat, Jul 11
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$291 Roundtrip, found 23 hours ago
$291
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Fri, Jul 10 from Piedmont Triad Intl. to LaGuardia, returning Sat, Jul 11, priced at $291 found 23 hours ago
Sat, Dec 12 - Tue, Dec 15
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$294 Roundtrip, found 1 day ago
$294
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Dec 12 from Piedmont Triad Intl. to LaGuardia, returning Tue, Dec 15, priced at $294 found 1 day ago
Tue, Jul 28 - Sun, Aug 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$294 Roundtrip, found 4 hours ago
$294
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Jul 28 from Piedmont Triad Intl. to LaGuardia, returning Sun, Aug 2, priced at $294 found 4 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.