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.
SNA → LAS
Santa Ana to Las Vegas: 4,386 nonstop flights a year
On time (12 months)
83%
Cancelled
0.7%
avg delay 12 min
Best time to leave
Before 9 AM
96% on time vs 76% 6 to 9 PM
Most reliable airline
Spirit
87% chance on time
Lowest nonstop fare seen in the next two months: $27 (Frontier 3738 on 2026-11-16). 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 2662
6:45 AM → 8:10 AM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-30. Same departure also flew as Southwest 2240; its record covers all of them.
95%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 96% of the time (80 flights, Jun 2025 to May 2026).
- Never cancelled in 80 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 76%).
Moderate track record · 80 flights
Find Southwest 2662 fares Opens this date on Aviasales#2 · Spirit 714
6:45 AM → 7:49 AM1h 05m nonstop
Local times, typical schedule. Last flown 2026-05-01.
92%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.9%
- Avg arrival delay
- 6 min
- Arrived on time 93% of the time (227 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 76%).
Strong track record · 227 flights
Find Spirit 714 fares Opens this date on Aviasales#3 · Southwest 264
7:20 AM → 8:30 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 96% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 76%).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 264 fares Opens this date on Aviasales#4 · Southwest 1892
8:00 AM → 9:10 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
92%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 97% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 76%).
- Short track record (33 flights), so its score leans on the airline's record at this hour.
Limited track record · 33 flights
Find Southwest 1892 fares Opens this date on Aviasales#5 · SkyWest 4074 · sold as United Express, Delta Connection, American Eagle or Alaska
5:31 PM → 6:49 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-04-12.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.6%
- Avg arrival delay
- 23 min
- Arrived on time 92% of the time (157 flights, Jun 2025 to May 2026).
Moderate track record · 157 flights
Find 5:31 PM flight fares Opens this date on Aviasales#6 · Southwest 2131
8:50 AM → 10:00 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-29.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 76%).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 2131 fares Opens this date on Aviasales#7 · Spirit 1012
9:00 AM → 10:08 AM1h 08m nonstop
Local times, typical schedule. Last flown 2026-05-01.
90%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find Spirit 1012 fares Opens this date on Aviasales#8 · Southwest 4272
11:40 AM → 12:55 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 91% of the time (45 flights, Jun 2025 to May 2026).
- Never cancelled in 45 scheduled flights.
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find Southwest 4272 fares Opens this date on Aviasales#9 · Southwest 1896
9:10 AM → 10:20 AM1h 10m nonstop
Local times, typical schedule. Last flown 2026-05-30.
87%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 1896 fares Opens this date on Aviasales#10 · SkyWest 4078 · sold as United Express, Delta Connection, American Eagle or Alaska
11:00 AM → 12:19 PM1h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 86% of the time (349 flights, Jun 2025 to May 2026).
- Never cancelled in 349 scheduled flights.
- Lands inside LAS's trouble window: 51% of its 104 ground stops and delay programs started between 10 AM and 4 PM.
Strong track record · 349 flights
Find 11:00 AM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Spirit Airlines87%
890 flights · 89% on time as flown · 1.4% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)85%
786 flights · 86% on time as flown · 0.8% cancel
- Southwest Airlines81%
2,500 flights · 81% on time as flown · 0.4% cancel
- Frontier Airlines75%
210 flights · 74% on time as flown · 0.9% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
910 flights · avg delay 3 min
- 9 AM to noon86%
939 flights · avg delay 10 min
- Noon to 3 PM79%
625 flights · avg delay 14 min
- 3 to 6 PM79%
957 flights · avg delay 14 min
- 6 to 9 PM76%
891 flights · avg delay 19 min
Best day: Saturday (90%). Worst: Friday (73%).
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