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Showing United only (incl. its regional partners)All airlines ×
5,183 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 73%.

Best time to leave 7–8 am 92% arrive on time from IAH
Best airport pair IAH → IAD 82% on time, fewest cancelled (0.4%), 1,871 flights
Best single flight UA 1549 IAH 07:20 → IAD 11:28 · 92% on time Avoid UA 1627 IAH 18:05 → DCA 22:15 · 66% 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
% 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 1549 IAH 07:20 IAD 11:28 92%
UA 2311 IAH 09:47 DCA 13:57 84%
UA 2366 IAH 12:13 IAD 16:30 82%
UA 1720 IAH 12:16 BWI 16:30 81%
UA 654 IAH 11:55 DCA 16:03 75%
· · ·
UA 1373 IAH 18:32 IAD 22:43 73%
UA 2224 IAH 19:50 DCA 23:59 70%
UA 1627 IAH 18:05 DCA 22:15 66%

All 21 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 1549 IAH 07:20 IAD 11:28 3h 08m 346 92% 0.6% 59 min
UA 604 IAH 07:40 BWI 11:47 3h 07m 115 89% 0.0% 35 min
UA 2047 IAH 07:46 DCA 11:56 3h 10m 36 97% 0.0% 24 min
UA 2140 IAH 07:46 DCA 11:56 3h 10m 35 83% 0.0% 46 min
UA 2311 IAH 09:47 DCA 13:57 3h 10m 275 84% 0.4% 54 min
UA 2670 IAH 09:47 DCA 13:57 3h 10m 32 88% 0.0% 72 min
UA 654 IAH 11:55 DCA 16:03 3h 08m 301 75% 0.7% 62 min
UA 2366 IAH 12:13 IAD 16:30 3h 17m 347 82% 0.3% 58 min
UA 1720 IAH 12:16 BWI 16:30 3h 14m 163 81% 0.0% 81 min
UA 625 IAH 14:20 DCA 18:31 3h 11m 127 69% 0.8% 68 min
UA 1478 IAH 14:31 IAD 18:50 3h 19m 45 76% 0.0% 98 min
UA 2388 IAH 16:35 IAD 20:46 3h 11m 72 70% 0.0% 74 min
UA 2296 IAH 16:55 DCA 21:06 3h 11m 35 61% 2.9% 88 min
UA 2332 IAH 16:55 DCA 21:06 3h 11m 35 53% 0.0% 118 min
UA 1627 IAH 18:05 DCA 22:15 3h 10m 360 66% 0.6% 70 min
UA 2682 IAH 18:32 BWI 22:45 3h 13m 114 69% 1.8% 67 min
UA 1795 IAH 18:32 BWI 22:45 3h 13m 25 64% 0.0% 52 min
UA 1373 IAH 18:32 IAD 22:43 3h 11m 170 73% 1.2% 67 min
UA 2224 IAH 19:50 DCA 23:59 3h 09m 305 70% 0.7% 54 min
UA 2775 IAH 20:20 IAD 00:31 3h 11m 37 73% 0.0% 56 min
UA 2767 IAH 20:20 IAD 00:31 3h 11m 24 75% 0.0% 72 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 IAD 3h 08m 82% 0.4% 1,871 Flying now
United IAH BWI 3h 07m 81% 0.9% 906 Flying now
United IAH DCA 3h 08m 76% 0.7% 2,406 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