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(WN) Southwest Airlines 3677 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
3
38%
Late
1
13%
Very Late
1
13%
Excessive
3
38%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
42.5
Standard Deviation
40.8
Min
8
Max
121

WN 3677 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 38%
Average Delay Time 42.5 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 38%
This flight has an on-time performance of 38%. 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 42.5 min
This flight has an average delay of 42.5 minutes with a standard deviation of 40.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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