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5,237 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 72%.

Best time to leave 6–7 am 93% arrive on time from LAS
Best single flight UA 2102 LAS 23:30 → ORD 05:11 · 92% on time Avoid UA 706 LAS 14:25 → ORD 20:23 · 67% 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).

5
6
7
8
9
10
11
12
13
14
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20
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LAS
94
91
82
84
86
85
79
61
79
65
65
67
56
72
77
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Spirit 199 85% 2.0% 57 min
United 2,337 80% 0.5% 78 min
American 1,889 76% 2.3% 109 min
Southwest 608 69% 0.3% 61 min
Frontier 204 69% 3.9% 98 min

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 2102 LAS 23:30 ORD 05:11 92%
AA 2258 LAS 07:20 ORD 13:16 89%
UA 664 LAS 07:00 ORD 12:48 89%
UA 1583 LAS 10:25 ORD 16:21 83%
F9 2146 LAS 23:49 ORD 05:37 70%
· · ·
UA 706 LAS 14:25 ORD 20:23 67%
All 16 flights on this route →

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 LAS ORD 3h 47m 80% 0.5% 2,337 Flying now
American LAS ORD 3h 49m 76% 2.3% 1,889 Flying now
Frontier LAS ORD 3h 48m 69% 3.9% 204 Flying now
Spirit LAS ORD 3h 38m 85% 2.0% 199 Not flying now
Southwest LAS ORD 3h 45m 69% 0.3% 608 Not 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