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(G4) Allegiant Air 637 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(AZA) Phoenix-Mesa Gateway Airport

Mesa, AZ, US

(RFD) Chicago Rockford International Airport

Rockford, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
3
60%
Late
2
40%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
5
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
17.666666666666668
Standard Deviation
13.1
Min
0
Max
28

G4 637 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 60%
Average Delay Time 17.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 45% of all other flights in the FlightStats database.
On-Time Performance Rating
1.1 of 5
Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 17.666666666666668 min
This flight has an average delay of 17.666666666666668 minutes with a standard deviation of 13.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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