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

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American Airlines Flight 4578 Route Deals From $210

The cheapest prices found with in the last 7 days for return flights were $309 and $210 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 23 - Wed, Dec 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$309 Roundtrip, found 4 days ago
$309
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 23 from Piedmont Triad Intl. to LaGuardia, returning Wed, Dec 30, priced at $309 found 4 days ago
Wed, Dec 23 - Wed, Dec 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$319 Roundtrip, found 4 days ago
$319
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 23 from Piedmont Triad Intl. to LaGuardia, returning Wed, Dec 30, priced at $319 found 4 days ago
Wed, Dec 23 - Wed, Dec 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$329 Roundtrip, found 4 days ago
$329
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 23 from Piedmont Triad Intl. to LaGuardia, returning Wed, Dec 30, priced at $329 found 4 days ago
Sun, Oct 11 - Tue, Oct 20
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Oct 11 from Piedmont Triad Intl. to LaGuardia, returning Tue, Oct 20, priced at $344 found 2 days ago
Fri, Sep 11 - Mon, Sep 14
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$351 Roundtrip, found 5 days ago
$351
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Sep 11 from Piedmont Triad Intl. to LaGuardia, returning Mon, Sep 14, priced at $351 found 5 days ago
Sat, Oct 31 - Mon, Nov 2
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$359 Roundtrip, found 5 days ago
$359
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Oct 31 from Piedmont Triad Intl. to LaGuardia, returning Mon, Nov 2, priced at $359 found 5 days ago
Sat, Sep 5 - Mon, Sep 7
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$361 Roundtrip, found 4 days ago
$361
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 5 from Piedmont Triad Intl. to LaGuardia, returning Mon, Sep 7, priced at $361 found 4 days ago
Sun, Oct 11 - Tue, Oct 20
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$364 Roundtrip, found 2 days ago
$364
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Oct 11 from Piedmont Triad Intl. to LaGuardia, returning Tue, Oct 20, priced at $364 found 2 days ago
Wed, Dec 23 - Wed, Dec 30
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$364 Roundtrip, found 4 days ago
$364
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 23 from Piedmont Triad Intl. to LaGuardia, returning Wed, Dec 30, priced at $364 found 4 days ago
Sat, Apr 17 - Sat, Apr 24
GSO
Piedmont Triad Intl.
LGA
LaGuardia
$369 Roundtrip, found 6 days ago
$369
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Apr 17 from Piedmont Triad Intl. to LaGuardia, returning Sat, Apr 24, priced at $369 found 6 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.