CSB7521 21 Air - Flight Status

Which is the frequency of flight CSB7521?
The flight CSB7521 is scheduled to flight on daily basis.

Which is the distance of flight CSB7521?
The distance between the two airports is 1681 kilometers.

Which is the flight time of flight CSB7521?
The scheduled flight time gate to gate is: 03:13 hours.
The real flight time gate to gate on average is: 02:59 hours.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

The following airlines serves the same route between Miami and San Juan:

Atlas Air
- Flight Number: 5Y8617. (On Time performance: 38 - Average Delay: 34 minutes)

American Airlines
- Flight Number: AA1172. (On Time performance: 64 - Average Delay: 25 minutes)
- Flight Number: AA1613. (On Time performance: 86 - Average Delay: 7 minutes)
- Flight Number: AA1999. (On Time performance: 39 - Average Delay: 42 minutes)
- Flight Number: AA2035. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: AA2141. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: AA2682. (On Time performance: 62 - Average Delay: 69 minutes)
- Flight Number: AA2685. (On Time performance: 41 - Average Delay: 47 minutes)
- Flight Number: AA3146. (On Time performance: 79 - Average Delay: 13 minutes)
- Flight Number: AA3149. (On Time performance: 73 - Average Delay: 25 minutes)
- Flight Number: AA993. (On Time performance: 95 - Average Delay: 3 minutes)

21 Air
- Flight Number: CSB231. (On Time performance: 44 - Average Delay: 66 minutes)
- Flight Number: CSB7505. (On Time performance: 64 - Average Delay: 20 minutes)

Frontier Airlines
- Flight Number: F92284. (On Time performance: 86 - Average Delay: 16 minutes)
- Flight Number: F92384. (On Time performance: 69 - Average Delay: 17 minutes)

Amerijet International
- Flight Number: M68643. (On Time performance: 40 - Average Delay: 46 minutes)

Spirit Airlines
- Flight Number: NK462. (On Time performance: 74 - Average Delay: 23 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from February 04, 2026 to March 04, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

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

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from February 04, 2026 to February 28, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.