AA4521 American Airlines - Flight Status

Which is the frequency of flight AA4521?
The flight AA4521 is scheduled to flight on Tuesday, Wednesday, Thursday, Sunday on a weekly basis.

Which is the distance of flight AA4521?
The distance between the two airports is 887 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in New York: 2026-04-16 18:16:23
Current Time in Saint Louis: 2026-04-16 17:16:23

The following airlines serves the same route between New York and Saint Louis:

American Airlines
- Flight Number: AA4353. (On Time performance: 89 - Average Delay: 3 minutes)
- Flight Number: AA4383. (On Time performance: 61 - Average Delay: 30 minutes)
- Flight Number: AA4461. (On Time performance: 77 - Average Delay: 21 minutes)
- Flight Number: AA4533. (On Time performance: 88 - Average Delay: 11 minutes)
- Flight Number: AA4658. (On Time performance: 100 - Average Delay: 1 minutes)

Delta Air Lines
- Flight Number: DL4905. (On Time performance: 67 - Average Delay: 23 minutes)
- Flight Number: DL4939. (On Time performance: 90 - Average Delay: 7 minutes)
- Flight Number: DL5600. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: DL5602. (On Time performance: 83 - Average Delay: 12 minutes)
- Flight Number: DL5603. (On Time performance: 49 - Average Delay: 39 minutes)
- Flight Number: DL5613. (On Time performance: 61 - Average Delay: 39 minutes)
- Flight Number: DL5617. (On Time performance: 73 - Average Delay: 19 minutes)

Southwest Airlines
- Flight Number: WN1430. (On Time performance: 75 - Average Delay: 7 minutes)
- Flight Number: WN1748. (On Time performance: 42 - Average Delay: 29 minutes)
- Flight Number: WN2255. (On Time performance: 74 - Average Delay: 14 minutes)
- Flight Number: WN2940. (On Time performance: 100 - Average Delay: 1 minutes)
- Flight Number: WN2942. (On Time performance: 100 - Average Delay: 3 minutes)
- Flight Number: WN3060. (On Time performance: 97 - Average Delay: 2 minutes)
- Flight Number: WN3105. (On Time performance: 86 - Average Delay: 6 minutes)
- Flight Number: WN3757. (On Time performance: 66 - Average Delay: 16 minutes)

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from June 05, 2025 to September 02, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.