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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

(FCA) Glacier Park International Airport

Kalispell, MT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
4
80%
Late
1
20%
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 )
2
Codeshares
0
Average Delay (min.)
14
Standard Deviation
12.7
Min
0
Max
23

G4 637 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 80%
Average Delay Time 14 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 65% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 14 min
This flight has an average delay of 14 minutes with a standard deviation of 12.7 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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