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Showing United only (incl. its regional partners)All airlines ×
1,684 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 3 in 4.

Best time to leave 11 am–12 pm 84% arrive on time from ATL
Best single flight UA 745 ATL 13:18 → ORD 14:41 · 81% on time Avoid UA 1046 ATL 19:04 → ORD 20:30 · 63% 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).

8
9
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ATL
91
87
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63
% 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.
UA 745 ATL 13:18 ORD 14:41 81%
UA 516 ATL 15:30 ORD 16:57 74%
UA 1046 ATL 19:04 ORD 20:30 63%

All 7 United 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.
UA 364 ATL 10:05 ORD 11:28 2h 23m 37 79% 8.1% 162 min
UA 1577 ATL 10:05 ORD 11:28 2h 23m 35 89% 0.0% 56 min
UA 1239 ATL 11:29 ORD 12:52 2h 23m 72 82% 0.0% 37 min
UA 745 ATL 13:18 ORD 14:41 2h 23m 168 81% 2.4% 84 min
UA 516 ATL 15:30 ORD 16:57 2h 27m 363 74% 1.1% 129 min
UA 1046 ATL 19:04 ORD 20:30 2h 26m 341 63% 2.6% 94 min
UA 785 ATL 20:44 ORD 21:59 2h 15m 61 56% 3.3% 89 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.
United ATL ORD 2h 18m 76% 1.7% 1,684 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