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Sun, Oct 4 has passed, so this is the 12-month record.

11,769 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Burbank: 95% depart on time. After 4 pm it’s 73%.

Best time to leave 5–6 am 92% arrive on time from LAX
Best airport pair ONT → MDW 91% on time, fewest cancelled (0.3%), 360 flights
Best single flight AA 383 LAX 06:00 → ORD 12:27 · 91% on time Avoid F9 2446 LAX 23:59 → ORD 06:17 · 61% 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
15
16
17
18
19
20
21
22
23
LAX
90
93
91
89
74
75
60
73
70
75
63
72
64
70
77
76
BUR
95
96
83
79
LGB
90
85
81
71
SNA
97
88
81
87
69
76
81
65
ONT
91
85
82
% 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.
Southwest 2,264 83% 0.6% 43 min
United 4,720 81% 0.7% 70 min
Spirit LAX→ORD only 189 78% 4.2% 84 min
American 4,209 74% 1.9% 94 min
Delta LAX→ORD only 151 73% 0.0% 76 min
Frontier LAX→ORD only 236 61% 5.1% 144 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.
AA 383 LAX 06:00 ORD 12:27 91%
UA 1941 LAX 07:00 ORD 13:14 91%
AA 1598 LAX 08:00 ORD 14:27 90%
AA 2590 SNA 07:45 ORD 14:08 88%
UA 212 LAX 17:00 ORD 23:16 87%
· · ·
UA 2487 LAX 14:26 ORD 20:40 69%
UA 1352 SNA 14:10 ORD 20:26 68%
F9 2446 LAX 23:59 ORD 06:17 61%
All 42 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.
Southwest ONT MDW 3h 45m 91% 0.3% 360 Flying now
Southwest BUR MDW 4h 00m 88% 0.6% 322 Flying now
Southwest LGB MDW 3h 50m 84% 1.1% 284 Flying now
United ONT ORD 4h 03m 81% 1.4% 291 Flying now
United LAX ORD 4h 12m 81% 0.7% 3,388 Flying now
United SNA ORD 4h 11m 80% 0.6% 1,041 Flying now
Southwest LAX MDW 3h 55m 79% 0.6% 1,298 Flying now
American SNA ORD 4h 17m 75% 1.8% 1,148 Flying now
American LAX ORD 4h 12m 74% 2.0% 3,061 Flying now
Delta LAX ORD 4h 10m 73% 0.0% 151 Flying now
Frontier LAX ORD 4h 18m 61% 5.1% 236 Flying now
Spirit LAX ORD 4h 08m 78% 4.2% 189 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