American Airlines Flight AC4542 Deals & Information (2025/2026)

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American Airlines Flight 4542 Route Deals From $167

The cheapest prices found with in the last 7 days for return flights were $193 and $167 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 8 - Sun, Nov 16
YYZ
Pearson Intl.
LGA
LaGuardia
$193 Roundtrip, found 1 day ago
$193
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 8 from Pearson Intl. to LaGuardia, returning Sun, Nov 16, priced at $193 found 1 day ago

Frequently asked questions

What route does flight number AA4542 take?
AA4542 takes a number of routes. The most popular is Pensacola Airport to LaGuardia Airport (LGA), which flies direct. This service takes around 2 hours and 50 minutes. However, there are likely to be other flights with this number that are multi-stop.
What kind of plane is on flight number AA4542?
If you have a seat on flight AA4542 from Pensacola, FL Airport (PNS-Pensacola Intl.) to LGA, there's an excellent chance you'll be traveling on the Embraer 175. Flight AA4542 serves several routes, but this is the most common one.
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 AA4542 flight with Travelocity, please visit our Customer Service Portal.