(WN) Southwest Airlines 1277 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(GEG) Spokane International Airport

Spokane, WA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)

On-Time

63%

Late

14%

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

45.964285714285715

Standard Deviation

59.4

Min

Max

209

WN 1277 On-Time Performance Details

Overall Rating

0.3 of 5

Very Poor

Percentage On-Time 63%

Average Delay Time 45.964285714285715 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.

On-Time Performance Rating

0.1 of 5

Very Poor

Percentage On-Time 63%

This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.

Delay Performance

0.4 of 5

Very Poor

Average Delay Time 45.964285714285715 min

This flight has an average delay of 45.964285714285715 minutes with a standard deviation of 59.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.