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(WN) Southwest Airlines 1634 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(DEN) Denver International Airport

Denver, CO, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
41
91%
Late
1
2%
Very Late
2
4%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
20.2
Standard Deviation
23.2
Min
0
Max
73

WN 1634 On-Time Performance Details

Overall Rating
4.4 of 5
Good
Percentage On-Time 91%
Average Delay Time 20.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 20.2 min
This flight has an average delay of 20.2 minutes with a standard deviation of 23.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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