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1,264 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 3 in 4.

Best time to leave 7–8 am 95% arrive on time from IAH
Best single flight UA 6148 IAH 08:15 → RDU 12:02 · 91% on time Avoid UA 2498 IAH 18:08 → RDU 21:59 · 77% 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
16
17
18
IAH
96
90
77
91
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.

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 (incl. SkyWest, Mesa, Republic) 1,037 86% 0.9% 62 min
Frontier 227 78% 2.2% 85 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 6148flown by Mesa IAH 08:15 RDU 12:02 91%
UA 2498 IAH 18:08 RDU 21:59 77%

All 5 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 6148flown by Mesa IAH 08:15 RDU 12:02 2h 47m 273 91% 1.1% 39 min
F9 1742 IAH 09:42 RDU 13:37 2h 56m 143 80% 1.4% 95 min
UA 2196 IAH 12:03 RDU 15:55 2h 52m 48 83% 2.1% 62 min
UA 4040flown by Mesa IAH 12:03 RDU 16:00 2h 57m 28 75% 0.0% 82 min
UA 2498 IAH 18:08 RDU 21:59 2h 51m 303 77% 0.7% 65 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 RDU 2h 47m 86% 0.9% 1,037 Flying now
Frontier IAH RDU 2h 56m 78% 2.2% 227 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