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5,008 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 85% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 5–6 am 90% arrive on time from ORD
Best single flight AA 2970 ORD 05:00 → PHL 08:05 · 90% on time Avoid AA 1848 ORD 17:07 → PHL 20:25 · 59% 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
ORD
90
85
93
78
83
68
76
68
71
68
59
57
64
61
54
59
% 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
Philadelphia flights leaving ORD 3–4 pm: 4Close ×
AA 2925 ORD 15:19 PHL 18:29 2h 10m 36 71% 2.8% 86 min
AA 1015 ORD 15:21 PHL 18:31 2h 10m 39 87% 0.0% 68 min
AA 2819 ORD 15:29 PHL 18:47 2h 18m 30 59% 6.7% 80 min
UA 2825 ORD 15:56 PHL 19:18 2h 22m 30 69% 3.3% 153 min

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 (incl. Republic) 1,814 74% 1.7% 83 min
American (incl. Republic) 3,001 73% 4.0% 96 min
Frontier 193 61% 4.7% 134 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 2970 ORD 05:00 PHL 08:05 90%
AA 471 ORD 08:29 PHL 11:41 80%
UA 2182 ORD 11:33 PHL 14:47 79%
F9 2112 ORD 20:00 PHL 23:27 62%
UA 1776 ORD 17:59 PHL 21:19 61%
· · ·
AA 2443 ORD 18:48 PHL 21:59 59%
AA 1848 ORD 17:07 PHL 20:25 59%
All 22 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 ORD PHL 2h 11m 74% 1.7% 1,814 Flying now
American ORD PHL 2h 05m 73% 4.0% 3,001 Flying now
Frontier ORD PHL 2h 27m 61% 4.7% 193 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