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.
DEN → LAX
Denver to Los Angeles: 7,728 nonstop flights a year
On time (12 months)
79%
Cancelled
0.5%
avg delay 14 min
Best time to leave
Before 9 AM
90% on time vs 67% 6 to 9 PM
Most reliable airline
United
85% chance on time
Lowest nonstop fare seen in the next two months: $36 (Frontier 4339 on 2026-11-03). 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 · United 1093
6:00 AM → 7:36 AM2h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 97% of the time (141 flights, Jun 2025 to May 2026).
- Never cancelled in 142 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 67%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Moderate track record · 141 flights
Find United 1093 fares Opens this date on Aviasales#2 · United 405
9:40 AM → 11:16 AM2h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 93% of the time (328 flights, Jun 2025 to May 2026).
- Never cancelled in 328 scheduled flights.
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 328 flights
Find United 405 fares Opens this date on Aviasales#3 · United 1638
7:45 AM → 9:21 AM2h 36m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 92% of the time (365 flights, Jun 2025 to May 2026).
- Never cancelled in 365 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 67%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 365 flights
Find United 1638 fares Opens this date on Aviasales#4 · United 774
1:25 PM → 3:05 PM2h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 92% of the time (88 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Moderate track record · 88 flights
Find United 774 fares Opens this date on Aviasales#5 · Delta 2002
7:25 AM → 8:57 AM2h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.7%
- Avg arrival delay
- 11 min
- Arrived on time 89% of the time (265 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 6 to 9 PM: 67%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 265 flights
Find Delta 2002 fares Opens this date on Aviasales#6 · United 1013
11:24 AM → 1:02 PM2h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 88% of the time (365 flights, Jun 2025 to May 2026).
- Never cancelled in 365 scheduled flights.
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 365 flights
Find United 1013 fares Opens this date on Aviasales#7 · Frontier 2341
9:00 AM → 10:49 AM2h 40m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.3%
- Avg arrival delay
- 11 min
- Arrived on time 90% of the time (290 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 290 flights
Find Frontier 2341 fares Opens this date on Aviasales#8 · SkyWest 4957 · sold as United Express, Delta Connection, American Eagle or Alaska
11:31 AM → 1:14 PM2h 43m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 11:31 AM flight fares Opens this date on Aviasales#9 · United 1195
3:55 PM → 5:30 PM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 88% of the time (217 flights, Jun 2025 to May 2026).
- Never cancelled in 217 scheduled flights.
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 217 flights
Find United 1195 fares Opens this date on Aviasales#10 · SkyWest 4999 · sold as United Express, Delta Connection, American Eagle or Alaska
12:41 PM → 2:18 PM2h 37m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as SkyWest 3694; its record covers all of them.
85%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 87% of the time (104 flights, Jun 2025 to May 2026).
- Never cancelled in 104 scheduled flights.
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Moderate track record · 104 flights
Find 12:41 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines85%
3,059 flights · 85% on time as flown · 0.0% cancel
- Delta Air Lines81%
746 flights · 81% on time as flown · 1.2% cancel
- Frontier Airlines79%
731 flights · 80% on time as flown · 0.8% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)79%
1,260 flights · 80% on time as flown · 0.8% cancel
- Southwest Airlines69%
1,932 flights · 69% on time as flown · 0.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
1,624 flights · avg delay 7 min
- 9 AM to noon88%
1,278 flights · avg delay 7 min
- Noon to 3 PM83%
1,303 flights · avg delay 10 min
- 3 to 6 PM75%
1,062 flights · avg delay 17 min
- 6 to 9 PM67%
1,658 flights · avg delay 25 min
- After 9 PM68%
803 flights · avg delay 19 min
Best day: Tuesday (82%). Worst: Friday (77%).
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