American Airlines Flight 4557 Deals & Information (2025/2026)

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American Airlines Flight 4557 Route Deals From $89

The cheapest prices found with in the last 7 days for return flights were $177 and $89 for one-way flights to Buffalo Niagara Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 7 - Thu, Oct 9
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$177 Roundtrip, found 11 hours ago
$177
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Tue, Oct 7 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Thu, Oct 9, priced at $177 found 11 hours ago
Tue, Sep 2 - Sun, Sep 7
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$180 Roundtrip, found 4 days ago
$180
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 2 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sun, Sep 7, priced at $180 found 4 days ago
Wed, Aug 27 - Sat, Aug 30
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$180 Roundtrip, found 5 days ago
$180
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 27 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sat, Aug 30, priced at $180 found 5 days ago
Fri, Aug 8 - Mon, Aug 11
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$186 Roundtrip, found 1 day ago
$186
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 8 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $186 found 1 day ago
Fri, Aug 22 - Sun, Aug 24
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 22 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sun, Aug 24, priced at $191 found 1 day ago
Fri, Aug 22 - Sun, Aug 24
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 22 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sun, Aug 24, priced at $201 found 1 day ago
Thu, Sep 11 - Sat, Sep 13
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 11 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sat, Sep 13, priced at $201 found 1 day ago
Tue, Oct 7 - Thu, Oct 9
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$204 Roundtrip, found 11 hours ago
$204
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Tue, Oct 7 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Thu, Oct 9, priced at $204 found 11 hours ago
Tue, Jul 29 - Sat, Aug 2
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jul 29 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sat, Aug 2, priced at $209 found 1 day ago
Thu, Sep 11 - Sat, Sep 13
DCA
Ronald Reagan Washington National
BUF
Buffalo Niagara Intl.
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 11 from Ronald Reagan Washington National to Buffalo Niagara Intl., returning Sat, Sep 13, priced at $214 found 1 day ago

Frequently asked questions

What route does flight number AA4557 take?
AA4557 takes a number of routes. The most frequently flown is between LaGuardia Airport and STL, which is a direct flight. This service usually takes 2 hours and 47 minutes. That said, there may possibly be other flights with the same number that are multi-stop.
How often is AA4557 on time?
If you're taking to the skies with American Airlines on flight number AA4557 from LGA to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), your service will be on time 95% of the time — when you're running on a tight schedule, it's a relief knowing that your airline does too. In the rare event of an unforeseen delay, the average delay is just 1 hour and 33 minutes. This journey has a 2.7-star rating.
What terminal does AA4557 fly out of?
If you're flying out of LaGuardia Airport (LGA), there's a good chance you'll board the aircraft from Terminal B. The most frequented route for flight number AA4557 is LaGuardia Airport to Lambert Field, which is a direct flight.
What kind of plane is on flight number AA4557?
If you're taking flight AA4557 from New York, NY Airport (LGA-LaGuardia) to Lambert-St. Louis Intl. Airport (STL), you'll most likely be cruising aboard the Embraer 170. Flight AA4557 serves a number of different routes, but this is the most popular.
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 AA4557 flight with Travelocity, please visit our Customer Service Portal.