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6,024 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Long Beach or Ontario: 94% depart on time. After 4 pm it’s 77%.

Best time to leave 6–7 am 95% arrive on time from LAX
Best airport pair LAX → IAD 88% on time, 0.6% cancelled, 2,474 flights
Best single flight UA 2632 LAX 21:30 → IAD 05:36 · 94% on time Avoid AA 591 LAX 12:26 → DCA 20:29 · 78% on time

Time of day × airport

Share of flights leaving within 15 minutes, by scheduled departure hour: all flights from that airport, wherever they’re going. Blank: fewer than 40 flights.

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
LAX
94
92
90
87
83
80
78
76
76
75
74
79
76
75
78
75
77
80
79
LGB
95
95
93
90
87
87
81
83
69
71
72
79
73
70
69
ONT
95
94
92
90
89
82
83
77
76
68
71
76
79
69
73
64
68
83
79
% leaving within 15 min, all flights from that airport: 85+75–8465–7455–64under 55

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 2,918 89% 0.5% 56 min
Delta LAX→DCA only 362 81% 2.2% 103 min
American 844 81% 1.1% 69 min
Southwest 1,438 80% 1.0% 41 min
Alaska 383 79% 0.8% 66 min
Spirit LAX→BWI only 79 – 1.3% 51 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 2632 LAX 21:30 IAD 05:36 94%
UA 1573 LAX 16:49 IAD 00:55 92%
UA 1605 LAX 23:05 BWI 07:14 91%
UA 2667 LAX 10:39 IAD 18:48 90%
UA 1635 LAX 12:43 IAD 20:48 89%
· · ·
DL 392 LAX 07:35 DCA 15:35 81%
AS 6 LAX 11:48 DCA 20:00 78%
AA 591 LAX 12:26 DCA 20:29 78%
All 22 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 LAX BWI 5h 06m 90% 0.3% 579 Flying now
United LAX IAD 5h 03m 88% 0.6% 2,339 Flying now
Southwest ONT BWI 4h 45m 85% 0.4% 281 Flying now
American LAX DCA 4h 59m 82% 1.2% 728 Flying now
Delta LAX DCA 5h 00m 81% 2.2% 362 Flying now
Southwest LAX BWI 4h 55m 79% 1.2% 1,029 Flying now
Alaska LAX DCA 5h 12m 78% 0.8% 364 Flying now
American LAX IAD 4h 59m 77% 0.0% 116 Flying now
Southwest LGB BWI 4h 55m 83% 0.8% 128 Not flying now
Spirit LAX BWI 4h 59m 76% 1.3% 79 Not flying now
Alaska LAX IAD 5h 05m 89%few flights 0.0% 19 Not flying now
Pick a date and this becomes a forecast Coming soon: within 3 days of travel, the same ranking will use that day’s weather and our odds for each flight.

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