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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

American Airlines Flight 4578 Route Deals From $209

The cheapest prices found with in the last 7 days for return flights were $255 and $209 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jun 17 - Mon, Jun 22
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$255 Roundtrip, found 2 hours ago
$255
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Jun 17 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 22, priced at $255 found 2 hours ago
Wed, Jun 17 - Mon, Jun 22
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$265 Roundtrip, found 2 hours ago
$265
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Jun 17 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 22, priced at $265 found 2 hours ago
Thu, Jun 4 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$269 Roundtrip, found 7 hours ago
$269
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Jun 4 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $269 found 7 hours ago
Wed, Jun 17 - Mon, Jun 22
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$275 Roundtrip, found 2 hours ago
$275
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Jun 17 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 22, priced at $275 found 2 hours ago
Thu, Jun 4 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$279 Roundtrip, found 7 hours ago
$279
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Jun 4 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $279 found 7 hours ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$286 Roundtrip, found 9 hours ago
$286
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Jun 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $286 found 9 hours ago
Thu, Jun 4 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$289 Roundtrip, found 7 hours ago
$289
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Jun 4 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $289 found 7 hours ago
Wed, Jul 15 - Sat, Jul 18
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$291 Roundtrip, found 4 hours ago
$291
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jul 15 from Piedmont Triad Intl. to LaGuardia, returning Sat, Jul 18, priced at $291 found 4 hours ago
Fri, Jun 5 - Mon, Jun 8
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$296 Roundtrip, found 9 hours ago
$296
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Jun 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Jun 8, priced at $296 found 9 hours ago
Wed, Jul 15 - Sat, Jul 18
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$301 Roundtrip, found 4 hours ago
$301
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jul 15 from Piedmont Triad Intl. to LaGuardia, returning Sat, Jul 18, priced at $301 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.