Skip to content
WanderNerd

Flight Reliability

G4 388 · Allegiant Air

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and G4 388 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

69%
Arrive within 15 minutes
28 min
Average arrival delay
0%
Cancelled
2 min early
Median arrival delay

Based on 96 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(13 flights)
  • Tue(0 flights)
  • Wed(0 flights)
  • Thu73%(30 flights)
  • Fri(5 flights)
  • Sat62%(13 flights)
  • Sun66%(35 flights)
On-time by departure window
  • 6–9 AM(5 flights)
  • 9 AM–12 PM(2 flights)
  • 12–3 PM83%(40 flights)
  • 3–6 PM60%(30 flights)
  • 6–9 PM53%(17 flights)
  • 9 PM–12 AM(2 flights)
On-time trend by month
80%
May

Jun 46% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%13
July 202531%13
August 202580%10
April 202685%13
May 202680%10
Departures on time
72%
Diverted
0%
Flights flown
96
Months covered
12

Based on 96 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.