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.
SFB → FNT
Orlando to Flint: 348 nonstop flights a year
On time (12 months)
76%
Cancelled
0.3%
avg delay 22 min
Best time to leave
Before 9 AM
90% on time vs 45% 3 to 6 PM
Most reliable airline
Allegiant
76% 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 1539
10:24 AM → 1:06 PM2h 42m nonstop
Local times, typical schedule. Last flown 2026-05-17.
77%
chance on time
- On time (history)
- 74%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 74% of the time (19 flights, Jun 2025 to May 2026).
- 84% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find Allegiant 1539 fares Opens this date on Aviasales#2 · Allegiant 2827
1:42 PM → 4:24 PM2h 42m nonstop
Local times, typical schedule. Last flown 2026-05-13.
76%
chance on time
- On time (history)
- 73%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 73% of the time (11 flights, Jun 2025 to May 2026).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find Allegiant 2827 fares Opens this date on Aviasales#3 · Allegiant 1534
5:54 PM → 8:36 PM2h 42m nonstop
Local times, typical schedule. Last flown 2026-05-18.
60%
chance on time
- On time (history)
- 50%
- Cancelled
- 0.0%
- Avg arrival delay
- 19 min
- Arrived on time 50% of the time (20 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 45% on time; Before 9 AM: 90%).
- 56% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find Allegiant 1534 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Allegiant Air76%
348 flights · 76% on time as flown · 0.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
94 flights · avg delay 9 min
- 9 AM to noon86%
88 flights · avg delay 10 min
- Noon to 3 PM70%
44 flights · avg delay 17 min
- 3 to 6 PM45%
60 flights · avg delay 57 min
- 6 to 9 PM74%
62 flights · avg delay 31 min
Best day: Tuesday (91%). Worst: Monday (65%).
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