Route on-time record
LAS to CLE: most on-time flights and the best time to fly
Las Vegas (Harry Reid International Airport) to Cleveland (Cleveland Hopkins International Airport). 977 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 0.7% were cancelled. The most reliable flight number was Southwest 4258 at 10:55 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LAS → CLE
Las Vegas to Cleveland: 977 nonstop flights a year
On time (12 months)
78%
Cancelled
0.7%
avg delay 14 min
Best time to leave
Before 9 AM
83% on time vs 69% 3 to 6 PM
Most reliable airline
Southwest
78% chance on time
Lowest nonstop fare seen in the next two months: $153 (Southwest 4031 on 2026-11-01). 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 4258
10:55 AM → 6:05 PM4h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Departs inside LAS's trouble window: 51% of its 107 ground stops and delay programs started between 10 AM and 4 PM.
Limited track record · 32 flights
Find Southwest 4258 fares Opens this date on Aviasales#2 · Frontier 3232
1:11 PM → 8:33 PM4h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.4%
- Avg arrival delay
- 15 min
- Arrived on time 81% of the time (341 flights, Jun 2025 to May 2026).
- Departs inside LAS's trouble window: 51% of its 107 ground stops and delay programs started between 10 AM and 4 PM.
Strong track record · 341 flights
Find Frontier 3232 fares Opens this date on Aviasales#3 · Frontier 1822
12:29 AM → 7:32 AM4h 03m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 59%
- Cancelled
- 0.0%
- Avg arrival delay
- 25 min
- Arrived on time 59% of the time (27 flights, Jun 2025 to May 2026).
- Departs outside LAS's trouble window (10 AM to 4 PM, when 51% of its 107 ground stops and delay programs started).
Limited track record · 27 flights
Find Frontier 1822 fares Opens this date on Aviasales#4 · Southwest 3731
12:25 PM → 7:30 PM4h 05m nonstop
Local times, typical schedule. Last flown 2026-05-29.
62%
chance on time
- On time (history)
- 43%
- Cancelled
- 0.0%
- Avg arrival delay
- 27 min
- Arrived on time 43% of the time (23 flights, Jun 2025 to May 2026).
- Departs inside LAS's trouble window: 51% of its 107 ground stops and delay programs started between 10 AM and 4 PM.
Limited track record · 23 flights
Find Southwest 3731 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines78%
373 flights · 79% on time as flown · 0.2% cancel
- Frontier Airlines77%
601 flights · 78% on time as flown · 1.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM83%
228 flights · avg delay 13 min
- 9 AM to noon82%
299 flights · avg delay 10 min
- Noon to 3 PM74%
166 flights · avg delay 14 min
- 3 to 6 PM69%
35 flights · avg delay 11 min
- After 9 PM74%
249 flights · avg delay 20 min
Best day: Wednesday (86%). Worst: Sunday (70%).
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)50%
- Late-arriving aircraft36%
- Air traffic control and airport volume12%
- 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
LAS to CLE questions
- What time of day is best to fly LAS to CLE?
- Before 9 AM: 83% of flights arrived on time, against 69% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from LAS to CLE?
- Southwest, with a season-adjusted 78% chance of operating and arriving on time over 373 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 LAS to CLE?
- July (67% on time); the best was November (87%), 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 LAS
- CLE to LAS (return)
- LAS to LAX 79%
- LAS to DEN 77%
- LAS to SAN 68%
- LAS to PHX 78%
- LAS to SFO 66%
- LAS to SEA 82%
- LAS to ORD 77%
- LAS to DFW 81%
- LAS to ATL 84%
- LAS to SNA 82%
- LAS to SMF 79%
- LAS to BUR 80%
Most on-time flights from LAS on every route →
Live status: FAA delays and ground stops