UA3521 United Airlines - Flight Status

Which is the frequency of flight UA3521?
The flight UA3521 is scheduled to flight on daily basis.

Which is the distance of flight UA3521?
The distance between the two airports is 416 miles.

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 Newark and Raleigh/Durham:

Delta Air Lines
- Flight Number: DL5120. (On Time performance: 76 - Average Delay: 11 minutes)
- Flight Number: DL5260. (On Time performance: 77 - Average Delay: 48 minutes)
- Flight Number: DL5468. (On Time performance: 79 - Average Delay: 14 minutes)

Spirit Airlines
- Flight Number: NK2232. (On Time performance: 85 - Average Delay: 8 minutes)

United Airlines
- Flight Number: UA1407. (On Time performance: 63 - Average Delay: 11 minutes)
- Flight Number: UA1890. (On Time performance: 93 - Average Delay: 4 minutes)
- Flight Number: UA1920. (On Time performance: 61 - Average Delay: 18 minutes)
- Flight Number: UA2192. (On Time performance: 65 - Average Delay: 30 minutes)
- Flight Number: UA2485. (On Time performance: 68 - Average Delay: 30 minutes)
- Flight Number: UA3516. (On Time performance: 88 - Average Delay: 14 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 Weekday: We have gathered available data from last six months, spanning from May 01, 2025 to October 18, 2025. 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 October 02, 2024 to September 27, 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.