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AA 4521 St. Louis to New York Flight Status

American Airlines Flight AA4521 from St. Louis Lambert International Airport STL to New York LaGuardia Airport LGA is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on May 20th, 2026.
Check the table below for AA4521's most recent flight history:

AA 4521 Flight Status & Schedule

Date Departure Arrival Status
May 20 15:42 19:19
Cancelled
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May 19 15:46 18:45
Landed
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May 18 16:05 19:17
Landed
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May 17 15:50 18:51
Landed
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May 15 15:53 18:57
Landed
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American Airlines AA 4521 St. Louis to New York Flight Information

American Airlines Flight AA4521 connects St. Louis, United States to New York, United States, taking off from St. Louis Lambert International Airport STL and landing at New York LaGuardia Airport LGA.

How long is the AA4521 flight from St. Louis to New York?

The average flight time from St. Louis to New York is 2 hours and 4 minutes. The flight distance is 1426 km / 886 miles and the average flight speed is 674 km/h / 419 mph.

What is the On-Time Performance (OTP) of American Airlines Flight AA4521 St. Louis to New York?

The Airportia On-Time Performance Rating for American Airlines Flight AA4521 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AA4521 arriving at?

Flight AA4521 arrives at New York LaGuardia Airport (LGA) Terminal B.

When was the latest AA4521 flight?

The latest flight was scheduled for Wednesday, May 20th, 2026 but was cancelled.

How else can the flight AA4521 be referenced as?

This American Airlines flight can also be referenced as AAL4521, AA 4521, AAL 4521.

How often is flight AA4521 delayed?

On average, 0% of all AA4521 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled AA4521 flight or baggage issues?

If your AA4521 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our AA4521 Flight Tracker above for more details.

AA4521 Flight Delay Compensation up to 600€!

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Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >

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AA4521 and St. Louis STL to New York LGA Flights

Other flights departing from St. Louis STL: WN1370, AA5541, WN1325, AA9940

Other flights arriving at New York LGA: AA4590, AA4490, PD607, AA4503

All flights connecting St. Louis STL to New York LGA.

AA4521 American Airlines Flight: St. Louis to New York Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.