American Airlines Flight 4538 Deals & Information (2026/2027)

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American Airlines Flight 4538 Route Deals From $129

The cheapest prices found with in the last 7 days for return flights were $247 and $129 for one-way flights to Pittsburgh Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Nov 13 - Sat, Nov 14
LGA
LaGuardia
PIT
Pittsburgh Intl.
$247 Roundtrip, found 14 hours ago
$247
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Fri, Nov 13 from LaGuardia to Pittsburgh Intl., returning Sat, Nov 14, priced at $247 found 14 hours ago
Fri, Nov 13 - Sat, Nov 14
LGA
LaGuardia
PIT
Pittsburgh Intl.
$257 Roundtrip, found 14 hours ago
$257
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Fri, Nov 13 from LaGuardia to Pittsburgh Intl., returning Sat, Nov 14, priced at $257 found 14 hours ago
Wed, Oct 21 - Sat, Oct 31
LGA
LaGuardia
PIT
Pittsburgh Intl.
$261 Roundtrip, found 3 hours ago
$261
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 21 from LaGuardia to Pittsburgh Intl., returning Sat, Oct 31, priced at $261 found 3 hours ago
Sat, Nov 14 - Mon, Nov 16
LGA
LaGuardia
PIT
Pittsburgh Intl.
$277 Roundtrip, found 2 days ago
$277
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Nov 14 from LaGuardia to Pittsburgh Intl., returning Mon, Nov 16, priced at $277 found 2 days ago
Wed, Oct 21 - Wed, Oct 28
LGA
LaGuardia
PIT
Pittsburgh Intl.
$281 Roundtrip, found 1 day ago
$281
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 21 from LaGuardia to Pittsburgh Intl., returning Wed, Oct 28, priced at $281 found 1 day ago
Fri, Nov 13 - Sat, Nov 14
LGA
LaGuardia
PIT
Pittsburgh Intl.
$281 Roundtrip, found 14 hours ago
$281
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Fri, Nov 13 from LaGuardia to Pittsburgh Intl., returning Sat, Nov 14, priced at $281 found 14 hours ago
Tue, Dec 1 - Sat, Dec 5
LGA
LaGuardia
PIT
Pittsburgh Intl.
$287 Roundtrip, found 12 hours ago
$287
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Dec 1 from LaGuardia to Pittsburgh Intl., returning Sat, Dec 5, priced at $287 found 12 hours ago
Wed, Oct 21 - Sat, Oct 31
LGA
LaGuardia
PIT
Pittsburgh Intl.
$291 Roundtrip, found 3 hours ago
$291
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 21 from LaGuardia to Pittsburgh Intl., returning Sat, Oct 31, priced at $291 found 3 hours ago
Fri, Nov 20 - Sun, Nov 22
LGA
LaGuardia
PIT
Pittsburgh Intl.
$295 Roundtrip, found 8 hours ago
$295
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Nov 20 from LaGuardia to Pittsburgh Intl., returning Sun, Nov 22, priced at $295 found 8 hours ago
Tue, Oct 20 - Wed, Oct 21
LGA
LaGuardia
PIT
Pittsburgh Intl.
$296 Roundtrip, found 5 hours ago
$296
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Tue, Oct 20 from LaGuardia to Pittsburgh Intl., returning Wed, Oct 21, priced at $296 found 5 hours ago

Frequently asked questions

What route does flight number AA4538 take?
AA4538 takes a number of routes. The most popular is Buffalo, NY Airport (BUF-Buffalo Niagara Intl.) to DCA, which is a direct flight. This flight generally takes 1 hour and 21 minutes. That said, there may possibly be other flights with the same number that have one or more stops.
What kind of plane is on flight number AA4538?
It's likely you'll be enjoying the services of an Embraer 175 if you've booked a fare on flight AA4538 from Buffalo Niagara Intl. Airport (BUF) to Washington, DC Airport (DCA-Ronald Reagan Washington National). It's the most commonly used aircraft type on this popular route.
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 AA4538 flight with Travelocity, please visit our Customer Service Portal.