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Showing United only (incl. its regional partners)All airlines ×
1,113 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s IAH → SGF flights land within a few points of 4 in 5 on time whatever the hour.

Best time to leave 12–1 pm 82% arrive on time from IAH
Best single flight UA 4911 IAH 14:30 → SGF 16:20 · 79% on time Avoid UA 4867 IAH 16:50 → SGF 18:43 · 76% 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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IAH
86
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80
% 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 4911flown by CommuteAir IAH 14:30 SGF 16:20 79%
UA 4867flown by CommuteAir IAH 16:50 SGF 18:43 76%

All 4 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 4370flown by CommuteAir IAH 12:25 SGF 14:18 1h 53m 41 55% 0.0% 58 min
UA 4569flown by GoJet IAH 12:25 SGF 14:15 1h 50m 30 87% 0.0% 65 min
UA 4911flown by CommuteAir IAH 14:30 SGF 16:20 1h 50m 216 79% 1.4% 88 min
UA 4867flown by CommuteAir IAH 16:50 SGF 18:43 1h 53m 210 76% 0.5% 109 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 IAH SGF 1h 52m 80% 1.0% 1,113 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