Route on-time record
KOA to LAS: most on-time flights and the best time to fly
Kailua-Kona (Ellison Onizuka Kona International Airport at Keāhole) to Las Vegas (Harry Reid International Airport). 365 nonstop flights in Jun 2025 to May 2026, 95% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was Southwest 2525 at 8:25 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
KOA → LAS
Kailua-Kona to Las Vegas: 365 nonstop flights a year
On time (12 months)
95%
Cancelled
0.8%
avg delay 2 min
Best time to leave
No clear winner
Most reliable airline
Southwest
95% 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 2525
8:25 PM → 5:10 AM5h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3480; its record covers all of them.
94%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 92% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
Moderate track record · 87 flights
Find Southwest 2525 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines95%
365 flights · 95% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 6 to 9 PM97%
239 flights · avg delay 3 min
- After 9 PM93%
126 flights · avg delay 2 min
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)74%
- Air traffic control and airport volume20%
- Late-arriving aircraft3%
- Security3%
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 LAS questions
- Which airline is most on time from KOA to LAS?
- Southwest, with a season-adjusted 95% 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 LAS?
- February (91% on time); the best was April (99%), 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
- LAS 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 SMF 90%
- KOA to PHX 93%
- KOA to DEN 91%
- KOA to LIH 93%
- KOA to SAN 71%
- KOA to PDX 74%
Live status: FAA delays and ground stops