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Route Reliability

BIS → AZA

BIS–AZA · 1,092 miles · BIS Airport to AZA Airport

78
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
14 min
Average arrival delay
0.8%
Cancelled
250
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 75% of the time across 250 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

BIS–AZA flights departing between 12–3 PM arrived on time 81% of the time, versus 65% between 9 PM–12 AM.

Thursdays have been rough.

BIS–AZA flights arrived on time 93% of the time on Tuesdays and just 62% on Thursdays. That gap is worth planning around.

Recent months have been rougher.

BIS–AZA flights arrived on time 64% of the time over the last three months in the data, compared with 73% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon75%(52 flights)
  • Tue93%(14 flights)
  • Wed79%(43 flights)
  • Thu62%(21 flights)
  • Fri71%(52 flights)
  • Sat79%(43 flights)
  • Sun70%(23 flights)
On-time by departure window
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM81%(107 flights)
  • 3–6 PM67%(12 flights)
  • 6–9 PM73%(74 flights)
  • 9 PM–12 AM65%(46 flights)
On-time trend by month
57%
May

Jun 82% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%17
July 202586%14
August 2025100%10
October 202584%19
November 202575%20
December 202570%23
January 202668%28
February 202683%29
March 202673%37
April 202661%28
May 202657%14

Keep nerding

Based on 250 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.