ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
PVU → AZA
Provo to Mesa: 705 nonstop flights a year
On time (12 months)
86%
Cancelled
0.1%
avg delay 21 min
Best time to leave
9 AM to noon
92% on time vs 72% 6 to 9 PM
Most reliable airline
Allegiant
86% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Allegiant 3215
10:00 AM → 10:42 AM1h 43m nonstop
Local times, typical schedule. Last flown 2026-05-18.
87%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 87% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 54 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 92% on time; 6 to 9 PM: 72%).
- Short track record (54 flights), so its score leans on the airline's record at this hour.
Limited track record · 54 flights
Find Allegiant 3215 fares Opens this date on Aviasales#2 · Allegiant 3223
12:00 PM → 12:42 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-18.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 26 min
- Arrived on time 89% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 35 scheduled flights.
- Short track record (35 flights), so its score leans on the airline's record at this hour.
Limited track record · 35 flights
Find Allegiant 3223 fares Opens this date on Aviasales#3 · Allegiant 1588
12:25 PM → 1:11 PM1h 46m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Allegiant 1604, 1601; its record covers all of them.
83%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 40 min
- Arrived on time 81% of the time (81 flights, Jun 2025 to May 2026).
- Never cancelled in 81 scheduled flights.
Moderate track record · 81 flights
Find Allegiant 1588 fares Opens this date on Aviasales#4 · Allegiant 1603
1:43 PM → 2:25 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-19.
82%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 82% of the time (66 flights, Jun 2025 to May 2026).
- Never cancelled in 66 scheduled flights.
Moderate track record · 66 flights
Find Allegiant 1603 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Allegiant Air86%
705 flights · 86% on time as flown · 0.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
275 flights · avg delay 27 min
- 9 AM to noon92%
192 flights · avg delay 13 min
- Noon to 3 PM78%
167 flights · avg delay 19 min
- 3 to 6 PM76%
34 flights · avg delay 30 min
- 6 to 9 PM72%
36 flights · avg delay 17 min
Best day: Wednesday (89%). Worst: Thursday (78%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure