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Showing United only (incl. its regional partners)All airlines ×
1,561 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 94% arrive on time from BOS
Best single flight UA 226 BOS 07:25 → IAH 10:35 · 94% on time Avoid UA 1976 BOS 13:37 → IAH 16:57 · 90% 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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BOS
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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.
UA 226 BOS 07:25 IAH 10:35 94%
UA 1976 BOS 13:37 IAH 16:57 90%

All 5 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 1409 BOS 05:47 IAH 08:50 4h 03m 51 92% 0.0% 58 min
UA 226 BOS 07:25 IAH 10:35 4h 10m 364 94% 1.9% 39 min
UA 1976 BOS 13:37 IAH 16:57 4h 20m 278 90% 1.4% 100 min
UA 1183 BOS 15:54 IAH 19:08 4h 14m 132 71% 1.5% 96 min
UA 1392 BOS 17:35 IAH 20:55 4h 20m 121 64% 0.8% 61 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 BOS IAH 4h 20m 84% 1.4% 1,561 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