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Showing United only (incl. its regional partners)All airlines ×
2,918 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 4 in 5.

Best time to leave 6–7 am 94% arrive on time from IAD, 92% arrive on time from BWI
Best airport pair IAD → LAX 85% on time, fewest cancelled (0.8%), 2,338 flights
Best single flight UA 1689 IAD 13:10 → LAX 15:42 · 90% on time Avoid UA 2276 IAD 17:48 → LAX 20:21 · 71% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
IAD
97
97
88
91
91
89
84
78
74
79
84
85
BWI
93
90
87
78
86
% 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 1689 IAD 13:10 LAX 15:42 90%
UA 1734 IAD 08:15 LAX 10:47 86%
UA 1385 IAD 22:20 LAX 00:57 84%
UA 2276 IAD 17:48 LAX 20:21 71%

All 10 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 2318 BWI 07:00 LAX 09:29 5h 29m 72 83% 1.4% 92 min
UA 325 IAD 07:00 LAX 09:26 5h 26m 71 92% 0.0% 34 min
UA 1734 IAD 08:15 LAX 10:47 5h 32m 184 86% 1.6% 84 min
UA 1868 IAD 09:10 LAX 11:39 5h 29m 72 85% 1.4% 118 min
UA 1689 IAD 13:10 LAX 15:42 5h 32m 365 90% 0.5% 38 min
UA 684 IAD 15:15 LAX 17:47 5h 32m 124 89% 0.0% 56 min
UA 2276 IAD 17:48 LAX 20:21 5h 33m 328 71% 1.5% 76 min
UA 1546 BWI 19:21 LAX 21:50 5h 29m 92 66% 0.0% 94 min
UA 413 IAD 20:18 LAX 22:55 5h 37m 55 82% 0.0% 54 min
UA 1385 IAD 22:20 LAX 00:57 5h 37m 336 84% 0.6% 45 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 IAD LAX 5h 35m 85% 0.8% 2,338 Flying now
United BWI LAX 5h 51m 84% 1.0% 580 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