FlightRecord

Billings (BIL) to Phoenix (AZA): On-Time Performance

Data through May 2026

Billings (BIL) to Phoenix (AZA) is a thinner route than most in this dataset — 174 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 77% arrived on time.

On-time
77%
arrived <15 min late
Avg delay
19 min
completed flights
Cancelled
0.5%
Flights/day
0.48
last 12 months
Duration
2h 25m
scheduled
Distance
878 mi

Monthly on-time trend

Monthly on-time percentage for BIL to AZA flights50%75%100%June 2024: 67% on-time (21 flights)67Jun 2024July 2024: 60% on-time (26 flights)60August 2024: 73% on-time (16 flights)73September 2024: 85% on-time (13 flights)85Sep 2024October 2024: 92% on-time (13 flights)92November 2024: 75% on-time (16 flights)75December 2024: 68% on-time (19 flights)68Dec 2024January 2025: 61% on-time (18 flights)61February 2025: 63% on-time (16 flights)63March 2025: 78% on-time (23 flights)78Mar 2025April 2025: 77% on-time (17 flights)77May 2025: 83% on-time (12 flights)83June 2025: 92% on-time (13 flights)92Jun 2025July 2025: 81% on-time (16 flights)81August 2025: 100% on-time (9 flights)100September 2025: 92% on-time (12 flights)92Sep 2025October 2025: 79% on-time (14 flights)79November 2025: 82% on-time (17 flights)82December 2025: 76% on-time (21 flights)76Dec 2025January 2026: 94% on-time (16 flights)94February 2026: 92% on-time (13 flights)92March 2026: 81% on-time (16 flights)81Mar 2026April 2026: 85% on-time (13 flights)85May 2026: 57% on-time (14 flights)57

Best time to fly from BIL to AZA

Aim for departures around 4 p.m. (86% on-time); avoid 6 p.m. departures (62%).

On-time percentage by scheduled departure hour, BIL to AZA12 p.m.: 89% on-time (27 flights)121 p.m.: 83% on-time (43 flights)132 p.m.: 79% on-time (38 flights)143 p.m.: 76% on-time (38 flights)154 p.m.: 86% on-time (43 flights)165 p.m.: 63% on-time (68 flights)176 p.m.: 62% on-time (53 flights)18scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday79%11 min
Tuesdaybest90%7 min
Wednesday81%15 min
Thursday51%43 min
Friday82%12 min
Saturday73%41 min
Sunday75%18 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft44%
  • Airline operations34%
  • National airspace system15%
  • Weather7%

Frequently asked questions

How often are flights from BIL to AZA delayed?
23% of BIL–AZA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 19 minutes.
What is the best time of day to fly from BIL to AZA?
Departures around 4 p.m. have the best record (86% on-time), while departures around 6 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from BIL to AZA?
The scheduled BIL–AZA flight time averages 2h 25m over 878 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
How often are BIL to AZA flights cancelled?
0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What day of the week is most reliable for BIL to AZA?
Friday flights have the best record at 82% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 51%.

Based on 384 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.