AZA to BIL flight delays
Phoenix, AZ (AZA) Billings, MT (BIL) · 878 miles
178 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
86.44%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
52 min
When late, late by
Average across delayed arrivals
8 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Only Allegiant Air flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Phoenix to Billings keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, Allegiant Air arrived on time most often on AZA to BIL. Flights ran closest to schedule in February and worst in May.
Every airline on AZA to BIL
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Allegiant Air | 178 | 86.44% | 0% | 52 min | A |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
BIL to AZA Billings back to Phoenix 82.02% on time BOther routes from Phoenix
- AZA → PVU · Provo B
- AZA → FAR · Fargo A
- AZA → FSD · Sioux Falls B
- AZA → ATW · Appleton B
- AZA → BIS · Bismarck/Mandan B
- AZA → IDA · Idaho Falls B
- AZA → PIA · Peoria A
- AZA → GRR · Grand Rapids C
- AZA → RAP · Rapid City B
- AZA → CID · Cedar Rapids/Iowa City C
- AZA → SGF · Springfield B
- AZA → RFD · Rockford B
Common questions
Are flights from Phoenix to Billings usually delayed?
86.44% of flights on the AZA to BIL route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Phoenix to Billings?
Only Allegiant Air appears in the published record on this route, with 178 flights and 86.44% arriving on time.
How often are AZA to BIL flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
When AZA to BIL flights are late, how late are they?
About 52 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on AZA to BIL during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →