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11,766 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Midway: 9 in 10 depart on time. After 4 pm it’s 62%.

Best time to leave 5–6 am 89% arrive on time from MDW
Best airport pair MDW → BUR 81% on time, fewest cancelled (0.6%), 322 flights
Best single flight UA 2361 ORD 07:00 → LAX 09:33 · 90% on time Avoid UA 2499 ORD 20:18 → LAX 22:55 · 58% 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
ORD
87
92
83
79
80
75
70
79
80
68
71
61
67
62
60
60
57
MDW
89
95
89
89
86
83
67
62
55
55
59
57
38
72
43
31
% 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.
United 4,718 77% 0.6% 67 min
Delta ORD→LAX only 151 75% 0.0% 66 min
Spirit ORD→LAX only 186 75% 4.3% 93 min
Southwest 2,264 73% 1.0% 51 min
American 4,210 71% 1.9% 76 min
Frontier ORD→LAX only 237 65% 4.6% 76 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 2361 ORD 07:00 LAX 09:33 90%
AA 607 ORD 06:00 LAX 08:20 88%
UA 308 ORD 19:45 SNA 22:19 84%
UA 1363 ORD 13:00 LAX 15:34 83%
UA 1044 ORD 10:30 LAX 13:09 81%
· · ·
AA 2364 ORD 19:08 LAX 21:33 59%
AA 529 ORD 15:21 LAX 17:43 59%
UA 2499 ORD 20:18 LAX 22:55 58%
All 43 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 MDW BUR 4h 25m 81% 0.6% 322 Flying now
United ORD LAX 4h 35m 78% 0.6% 3,387 Flying now
Southwest MDW LGB 4h 20m 77% 1.8% 284 Flying now
United ORD SNA 4h 37m 77% 0.3% 1,041 Flying now
Delta ORD LAX 4h 32m 75% 0.0% 151 Flying now
American ORD SNA 4h 28m 75% 1.8% 1,148 Flying now
Southwest MDW ONT 4h 15m 71% 1.1% 360 Flying now
Southwest MDW LAX 4h 30m 70% 0.9% 1,298 Flying now
American ORD LAX 4h 35m 70% 2.0% 3,062 Flying now
Frontier ORD LAX 4h 44m 65% 4.6% 237 Flying now
United ORD ONT 4h 31m 62% 1.4% 290 Flying now
Spirit ORD LAX 4h 30m 75% 4.3% 186 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