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2,019 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 65%.

Best time to leave 7–8 am 94% arrive on time from IAH
Best single flight UA 1977 IAH 07:30 → BOS 12:28 · 94% on time Avoid B6 932 IAH 13:27 → BOS 18:20 · 60% 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).

7
8
9
10
11
12
13
14
15
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18
IAH
92
80
77
65
59
54
65
54
67
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United 1,559 76% 1.1% 71 min
JetBlue 460 59% 2.8% 94 min

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 1977 IAH 07:30 BOS 12:28 94%
B6 932 IAH 13:27 BOS 18:20 60%

All 7 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 1977 IAH 07:30 BOS 12:28 3h 58m 361 94% 1.1% 60 min
UA 2393 IAH 09:50 BOS 14:48 3h 58m 71 82% 0.0% 78 min
UA 1957 IAH 12:30 BOS 17:34 4h 04m 93 61% 0.0% 75 min
B6 932 IAH 13:27 BOS 18:20 3h 56m 333 60% 1.8% 83 min
UA 2161 IAH 16:40 BOS 21:44 4h 04m 71 69% 0.0% 84 min
B6 1632 IAH 17:04 BOS 22:04 3h 58m 51 37% 9.8% 162 min
UA 521 IAH 18:15 BOS 23:19 4h 04m 124 68% 0.0% 63 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 BOS 3h 53m 76% 1.1% 1,559 Flying now
JetBlue IAH BOS 3h 57m 59% 2.8% 460 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