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Showing United only (incl. its regional partners)All airlines ×
2,335 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 96% arrive on time from ORD
Best single flight UA 574 ORD 07:11 → LAS 09:19 · 97% on time Avoid UA 1875 ORD 15:54 → LAS 17:57 · 75% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
ORD
95
87
84
88
86
90
91
76
76
66
50
71
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
UA 574 ORD 07:11 LAS 09:19 97%
UA 2440 ORD 11:00 LAS 13:05 87%
UA 777 ORD 12:40 LAS 14:45 76%
UA 1875 ORD 15:54 LAS 17:57 75%

All 10 United flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
UA 574 ORD 07:11 LAS 09:19 4h 08m 272 97% 0.0% 70 min
UA 723 ORD 09:00 LAS 11:08 4h 08m 37 89% 2.7% 32 min
UA 2137 ORD 09:00 LAS 11:08 4h 08m 87 83% 0.0% 74 min
UA 2440 ORD 11:00 LAS 13:05 4h 05m 271 87% 0.0% 59 min
UA 1733 ORD 11:00 LAS 13:05 4h 05m 35 83% 0.0% 62 min
UA 777 ORD 12:40 LAS 14:45 4h 05m 364 76% 0.8% 83 min
UA 1875 ORD 15:54 LAS 17:57 4h 03m 225 75% 0.9% 74 min
UA 1215 ORD 16:30 LAS 18:33 4h 03m 27 67% 0.0% 125 min
UA 2199 ORD 19:50 LAS 21:59 4h 09m 16 56% 0.0% 114 min
UA 2242 ORD 19:50 LAS 21:59 4h 09m 36 78% 0.0% 121 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
United ORD LAS 4h 09m 81% 0.5% 2,335 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON