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4,671 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 86% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 88% arrive on time from GRR
Best single flight UA 4583 GRR 11:38 → ORD 11:58 · 73% on time Avoid UA 2099 GRR 07:15 → ORD 07:28 · 71% 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
GRR
87
86
85
88
82
79
74
78
79
80
75
68
71
71
69
75
% 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
Chicago flights leaving GRR 4–5 pm: 1Close ×
UA 533 GRR 16:56 ORD 17:05 1h 09m 10 20% 0.0% 24 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.
American (incl. Envoy, PSA, SkyWest, Republic) 1,936 71% 3.7% 99 min
United (incl. GoJet, SkyWest, Republic) 2,735 69% 2.5% 86 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 4583flown by GoJet GRR 11:38 ORD 11:58 73%
UA 2099 GRR 07:15 ORD 07:28 71%
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.
American GRR ORD 1h 15m 71% 3.7% 1,936 Flying now
United GRR ORD 1h 17m 69% 2.5% 2,735 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