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

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American Airlines Flight 4557 Route Deals From $131

The cheapest prices found with in the last 7 days for return flights were $277 and $131 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 1 - Tue, Nov 4
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$277 Roundtrip, found 4 days ago
$277
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Nov 1 from Ronald Reagan Washington National to George Bush Intercontinental, returning Tue, Nov 4, priced at $277 found 4 days ago
Sat, Nov 1 - Tue, Nov 4
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$290 Roundtrip, found 4 days ago
$290
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Nov 1 from Ronald Reagan Washington National to George Bush Intercontinental, returning Tue, Nov 4, priced at $290 found 4 days ago
Sat, Nov 1 - Tue, Nov 4
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$300 Roundtrip, found 4 days ago
$300
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Nov 1 from Ronald Reagan Washington National to George Bush Intercontinental, returning Tue, Nov 4, priced at $300 found 4 days ago
Thu, Oct 9 - Mon, Oct 27
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 9 from Ronald Reagan Washington National to George Bush Intercontinental, returning Mon, Oct 27, priced at $309 found 3 days ago
Mon, Dec 8 - Wed, Dec 10
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Dec 8 from Ronald Reagan Washington National to George Bush Intercontinental, returning Wed, Dec 10, priced at $323 found 3 days ago
Sat, Nov 8 - Mon, Nov 10
DCA
Ronald Reagan Washington National
IAH
George Bush Intercontinental
$324 Roundtrip, found 2 days ago
$324
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Nov 8 from Ronald Reagan Washington National to George Bush Intercontinental, returning Mon, Nov 10, priced at $324 found 2 days 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.