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2,472 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 93% arrive on time from IAD
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
87
97
88
91
91
89
84
78
74
79
80
85
% 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
Los Angeles flights leaving IAD 10–11 pm: 1Close ×
UA 1385 IAD 22:20 LAX 00:57 5h 37m 336 84% 0.6% 45 min

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 2,338 85% 0.8% 62 min
American 115 – 0.0% 55 min
Alaska 19 – 0.0% 43 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 flights on this route →

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
American IAD LAX 5h 34m 77% 0.0% 115 Flying now
Alaska IAD LAX 5h 29m 47%few flights 0.0% 19 Not 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