Showing United only (incl. its regional partners)All airlines ×

1,035 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 4 in 5.

Best time to leave 7–8 am 91% arrive on time from IAH

Best single flight UA 3988 IAH 07:25 → CLT 11:02 · 89% on time Avoid UA 2864 IAH 18:12 → CLT 21:59 · 78% 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).

IAH

% 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 3988flown by Mesa	IAH 07:25	CLT 11:02	89%
UA 2864	IAH 18:12	CLT 21:59	78%

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 3988flown by Mesa	IAH 07:25	CLT 11:02	2h 37m	212	89%	0.9%	58 min
UA 6197flown by Mesa	IAH 12:10	CLT 16:02	2h 52m	37	84%	0.0%	70 min
UA 6127flown by Mesa	IAH 12:10	CLT 16:02	2h 52m	34	79%	0.0%	46 min
UA 2864	IAH 18:12	CLT 21:59	2h 47m	359	78%	1.1%	57 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	CLT	2h 38m	85%	1.1%	1,035	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