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Showing United only (incl. its regional partners)All airlines ×
1,503 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 78%.

Best time to leave 4–5 pm 93% arrive on time from SEA
Best single flight UA 2618 SEA 07:00 → ORD 13:15 · 92% on time Avoid UA 747 SEA 23:11 → ORD 05:18 · 86% 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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SEA
93
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74
% 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 2618 SEA 07:00 ORD 13:15 92%
UA 747 SEA 23:11 ORD 05:18 86%

All 6 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 2618 SEA 07:00 ORD 13:15 4h 15m 265 92% 0.4% 143 min
UA 2835 SEA 10:52 ORD 17:05 4h 13m 72 72% 0.0% 112 min
UA 768 SEA 13:51 ORD 20:17 4h 26m 35 43% 0.0% 79 min
UA 2101 SEA 13:55 ORD 20:21 4h 26m 86 65% 0.0% 107 min
UA 1503 SEA 17:15 ORD 23:22 4h 07m 71 81% 1.4% 105 min
UA 747 SEA 23:11 ORD 05:18 4h 07m 363 86% 0.3% 95 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 SEA ORD 4h 10m 81% 0.9% 1,503 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