Route on-time record
KOA to SMF: most on-time flights and the best time to fly
Kailua-Kona (Ellison Onizuka Kona International Airport at Keāhole) to Sacramento (Sacramento International Airport). 521 nonstop flights in Jun 2025 to May 2026, 90% arrived within 15 minutes and 0.0% were cancelled. The most reliable flight number was Southwest 2527 at 10:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
KOA → SMF
Kailua-Kona to Sacramento: 521 nonstop flights a year
On time (12 months)
90%
Cancelled
0.0%
avg delay 7 min
Best time to leave
9 AM to noon
91% on time vs 79% noon to 3 PM
Most reliable airline
Southwest
91% 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 · Southwest 2527
10:00 AM → 6:20 PM5h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3482; its record covers all of them.
90%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 86% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 91% on time; Noon to 3 PM: 79%).
Moderate track record · 87 flights
Find Southwest 2527 fares Opens this date on Aviasales#2 · Alaska 974
11:59 AM → 8:13 PM5h 14m nonstop
Local times, typical schedule. Last flown 2026-04-20.
84%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 82% of the time (17 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 91% on time; Noon to 3 PM: 79%).
- 82% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find Alaska 974 fares Opens this date on Aviasales#3 · Alaska 966
12:32 PM → 8:55 PM5h 23m nonstop
Local times, typical schedule. Last flown 2026-05-30.
83%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 82% of the time (17 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 79% on time; 9 AM to noon: 91%).
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find Alaska 966 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines91%
365 flights · 92% on time as flown · 0.0% cancel
- Hawaiian Airlines88%
92 flights · 88% on time as flown · 0.0% cancel
- Alaska Airlines88%
64 flights · 84% on time as flown · 0.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon91%
486 flights · avg delay 7 min
- Noon to 3 PM79%
34 flights · avg delay 5 min
Best day: Tuesday (98%). Worst: Thursday (86%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)69%
- Air traffic control and airport volume20%
- Late-arriving aircraft10%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
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
KOA to SMF questions
- What time of day is best to fly KOA to SMF?
- 9 AM to noon: 91% of flights arrived on time, against 79% for departures noon to 3 PM.
- Which airline is most on time from KOA to SMF?
- Southwest, with a season-adjusted 91% chance of operating and arriving on time over 365 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on KOA to SMF?
- February (79% on time); the best was June (98%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from KOA
- SMF to KOA (return)
- KOA to HNL 85%
- KOA to LAX 86%
- KOA to OGG 87%
- KOA to SEA 86%
- KOA to SFO 83%
- KOA to PHX 93%
- KOA to DEN 91%
- KOA to LIH 93%
- KOA to LAS 95%
- KOA to SAN 71%
- KOA to PDX 74%
Live status: FAA delays and ground stops