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Showing Delta only (incl. its regional partners)All airlines ×
1,385 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s GRR → ATL flights land within a few points of 87% on time whatever the hour.

Best time to leave 6–7 am 90% arrive on time from GRR
Best single flight DL 2453 GRR 06:10 → ATL 08:14 · 90% on time Avoid DL 2161 GRR 07:53 → ATL 09:56 · 85% 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).

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GRR
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% 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.

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.
DL 2453 GRR 06:10 ATL 08:14 90%
DL 2058 GRR 18:19 ATL 20:34 86%
DL 2547 GRR 12:51 ATL 14:54 85%
DL 2161 GRR 07:53 ATL 09:56 85%

All 4 Delta flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
DL 2453 GRR 06:10 ATL 08:14 2h 04m 365 90% 1.1% 60 min
DL 2161 GRR 07:53 ATL 09:56 2h 02m 342 85% 0.6% 104 min
DL 2547 GRR 12:51 ATL 14:54 2h 03m 228 85% 3.1% 75 min
DL 2058 GRR 18:19 ATL 20:34 2h 15m 295 86% 1.4% 78 min

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.
Delta GRR ATL 2h 04m 87% 1.4% 1,385 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