(WN) Southwest Airlines 857 On-Time Performance Rating

Date Range:

01-Feb-2026 to 31-Mar-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

On-Time Performance Chart

(using rounded numbers)

On-Time

100%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

Min

Max

WN 857 On-Time Performance Details

Overall Rating

4.3 of 5

Good

Percentage On-Time 100%

Average Delay Time 6 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.

On-Time Performance Rating

5.0 of 5

Very Good

Percentage On-Time 100%

This flight has an on-time performance of 100%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.

Delay Performance

3.5 of 5

Average

Average Delay Time 6 min

This flight has an average delay of 6 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.