WN4012 Southwest Airlines - Flight Status

Which is the frequency of flight WN4012?
The flight WN4012 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday on a weekly basis.

Which is the distance of flight WN4012?
The distance between the two airports is 447 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 San Diego and San Francisco:

Alaska Airlines
- Flight Number: AS2121. (On Time performance: 42 - Average Delay: 41 minutes)
- Flight Number: AS2211. (On Time performance: 47 - Average Delay: 31 minutes)
- Flight Number: AS2265. (On Time performance: 82 - Average Delay: 13 minutes)
- Flight Number: AS2312. (On Time performance: 59 - Average Delay: 24 minutes)
- Flight Number: AS2427. (On Time performance: 74 - Average Delay: 18 minutes)
- Flight Number: AS2466. (On Time performance: 50 - Average Delay: 19 minutes)
- Flight Number: AS2467. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: AS2480. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: AS3305. (On Time performance: 55 - Average Delay: 61 minutes)
- Flight Number: AS3347. (On Time performance: 59 - Average Delay: 39 minutes)
- Flight Number: AS3376. (On Time performance: 70 - Average Delay: 12 minutes)
- Flight Number: AS3463. (On Time performance: 85 - Average Delay: 9 minutes)
- Flight Number: AS3482. (On Time performance: 73 - Average Delay: 24 minutes)
- Flight Number: AS720. (On Time performance: 86 - Average Delay: 4 minutes)

Frontier Airlines
- Flight Number: F93381. (On Time performance: 67 - Average Delay: 51 minutes)

United Airlines
- Flight Number: UA1032. (On Time performance: 96 - Average Delay: 1 minutes)
- Flight Number: UA1111. (On Time performance: 89 - Average Delay: 13 minutes)
- Flight Number: UA1763. (On Time performance: 82 - Average Delay: 10 minutes)
- Flight Number: UA1871. (On Time performance: 71 - Average Delay: 24 minutes)
- Flight Number: UA1986. (On Time performance: 18 - Average Delay: 124 minutes)
- Flight Number: UA2038.
- Flight Number: UA2076.
- Flight Number: UA2117. (On Time performance: 73 - Average Delay: 21 minutes)
- Flight Number: UA2149. (On Time performance: 33 - Average Delay: 23 minutes)
- Flight Number: UA2309.
- Flight Number: UA285. (On Time performance: 70 - Average Delay: 21 minutes)
- Flight Number: UA2855. (On Time performance: 85 - Average Delay: 9 minutes)
- Flight Number: UA2863. (On Time performance: 58 - Average Delay: 21 minutes)
- Flight Number: UA505. (On Time performance: 58 - Average Delay: 27 minutes)
- Flight Number: UA5403. (On Time performance: 43 - Average Delay: 68 minutes)

Southwest Airlines
- Flight Number: WN1021.
- Flight Number: WN1438.
- Flight Number: WN2328. (On Time performance: 70 - Average Delay: 14 minutes)
- Flight Number: WN2337. (On Time performance: 60 - Average Delay: 21 minutes)
- Flight Number: WN2476. (On Time performance: 50 - Average Delay: 46 minutes)
- Flight Number: WN2956. (On Time performance: 56 - Average Delay: 39 minutes)
- Flight Number: WN3260. (On Time performance: 50 - Average Delay: 55 minutes)
- Flight Number: WN3421.
- Flight Number: WN4010.
- Flight Number: WN4249. (On Time performance: 91 - Average Delay: 3 minutes)
- Flight Number: WN4250. (On Time performance: 43 - Average Delay: 42 minutes)
- Flight Number: WN4252. (On Time performance: 57 - Average Delay: 40 minutes)
- Flight Number: WN4253. (On Time performance: 42 - Average Delay: 41 minutes)
- Flight Number: WN4789. (On Time performance: 39 - Average Delay: 51 minutes)
- Flight Number: WN956.

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 August 07, 2025 to September 29, 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.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from January 06, 2025 to September 29, 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.