WN4857 Southwest Airlines - Flight Status

Which is the frequency of flight WN4857?
The flight WN4857 is scheduled to flight on daily basis.

Which is the distance of flight WN4857?
The distance between the two airports is 338 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 Los Angeles and San Francisco:

American Airlines
- Flight Number: AA2567. (On Time performance: 70 - Average Delay: 25 minutes)
- Flight Number: AA6188. (On Time performance: 25 - Average Delay: 33 minutes)
- Flight Number: AA6221. (On Time performance: 35 - Average Delay: 27 minutes)
- Flight Number: AA6260. (On Time performance: 54 - Average Delay: 28 minutes)
- Flight Number: AA6289.
- Flight Number: AA6330. (On Time performance: 34 - Average Delay: 49 minutes)
- Flight Number: AA6336. (On Time performance: 84 - Average Delay: 14 minutes)
- Flight Number: AA6510. (On Time performance: 75 - Average Delay: 12 minutes)

Alaska Airlines
- Flight Number: AS1328. (On Time performance: 6 - Average Delay: 55 minutes)
- Flight Number: AS1439. (On Time performance: 54 - Average Delay: 29 minutes)
- Flight Number: AS1487. (On Time performance: 100 - Average Delay: 1 minutes)
- Flight Number: AS1522. (On Time performance: 25 - Average Delay: 40 minutes)
- Flight Number: AS1601. (On Time performance: 25 - Average Delay: 72 minutes)
- Flight Number: AS1603. (On Time performance: 67 - Average Delay: 18 minutes)
- Flight Number: AS1607. (On Time performance: 25 - Average Delay: 28 minutes)
- Flight Number: AS1610. (On Time performance: 50 - Average Delay: 22 minutes)
- Flight Number: AS1625. (On Time performance: 100 - Average Delay: 1 minutes)
- Flight Number: AS221. (On Time performance: 18 - Average Delay: 44 minutes)
- Flight Number: AS239. (On Time performance: 7 - Average Delay: 74 minutes)
- Flight Number: AS3067. (On Time performance: 18 - Average Delay: 41 minutes)
- Flight Number: AS498. (On Time performance: 64 - Average Delay: 30 minutes)
- Flight Number: AS514. (On Time performance: 64 - Average Delay: 13 minutes)

Delta Air Lines
- Flight Number: DL1421. (On Time performance: 93 - Average Delay: 3 minutes)
- Flight Number: DL1559. (On Time performance: 57 - Average Delay: 26 minutes)
- Flight Number: DL1715. (On Time performance: 44 - Average Delay: 36 minutes)
- Flight Number: DL2197. (On Time performance: 39 - Average Delay: 33 minutes)
- Flight Number: DL2267. (On Time performance: 29 - Average Delay: 44 minutes)
- Flight Number: DL2272. (On Time performance: 51 - Average Delay: 28 minutes)
- Flight Number: DL2725. (On Time performance: 67 - Average Delay: 13 minutes)
- Flight Number: DL2986. (On Time performance: 42 - Average Delay: 28 minutes)

Frontier Airlines
- Flight Number: F94593. (On Time performance: 47 - Average Delay: 28 minutes)

ABX Air
- Flight Number: GB1920. (On Time performance: 51 - Average Delay: 18 minutes)

Kalitta Air
- Flight Number: K4520. (On Time performance: 10 - Average Delay: 60 minutes)

Korean Air
- Flight Number: KE214. (On Time performance: 88 - Average Delay: 6 minutes)

AIRZETA
- Flight Number: KJ284. (On Time performance: 61 - Average Delay: 15 minutes)
- Flight Number: KJ286. (On Time performance: 63 - Average Delay: 14 minutes)

United Airlines
- Flight Number: UA1195. (On Time performance: 25 - Average Delay: 38 minutes)
- Flight Number: UA1372. (On Time performance: 61 - Average Delay: 30 minutes)
- Flight Number: UA1791. (On Time performance: 41 - Average Delay: 30 minutes)
- Flight Number: UA2019. (On Time performance: 58 - Average Delay: 22 minutes)
- Flight Number: UA2056. (On Time performance: 48 - Average Delay: 30 minutes)
- Flight Number: UA233. (On Time performance: 77 - Average Delay: 14 minutes)
- Flight Number: UA2647. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: UA2681. (On Time performance: 32 - Average Delay: 41 minutes)
- Flight Number: UA433. (On Time performance: 31 - Average Delay: 42 minutes)
- Flight Number: UA469. (On Time performance: 71 - Average Delay: 19 minutes)
- Flight Number: UA5407.

Southwest Airlines
- Flight Number: WN1105. (On Time performance: 97 - Average Delay: 3 minutes)
- Flight Number: WN2233.
- Flight Number: WN2426. (On Time performance: 91 - Average Delay: 4 minutes)
- Flight Number: WN2427. (On Time performance: 17 - Average Delay: 53 minutes)
- Flight Number: WN2429.
- Flight Number: WN2433. (On Time performance: 64 - Average Delay: 17 minutes)
- Flight Number: WN270.
- Flight Number: WN2713.
- Flight Number: WN2891. (On Time performance: 9 - Average Delay: 53 minutes)
- Flight Number: WN311.
- Flight Number: WN3161.
- Flight Number: WN3168.
- Flight Number: WN4950. (On Time performance: 7 - Average Delay: 58 minutes)
- Flight Number: WN947.

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 December 22, 2025 to June 21, 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 November 25, 2025 to January 04, 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.

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