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(WN) Southwest Airlines 1637 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(MIA) Miami International Airport

Miami, FL, US

(BNA) Nashville International Airport

Nashville, TN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
45%
Late
9
24%
Very Late
5
13%
Excessive
7
18%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
30
Codeshares
0
Average Delay (min.)
36.233333333333334
Standard Deviation
45.3
Min
0
Max
234

WN 1637 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 45%
Average Delay Time 36.233333333333334 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 45%
This flight has an on-time performance of 45%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 36.233333333333334 min
This flight has an average delay of 36.233333333333334 minutes with a standard deviation of 45.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

Other Stops for WN 1637