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2,474 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 88% on time.

Best time to leave 6–7 am 96% arrive on time from LAX
Best single flight UA 2632 LAX 21:30 → IAD 05:36 · 94% on time Avoid UA 2268 LAX 08:15 → IAD 16:26 · 84% 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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% 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.

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 2,339 88% 0.6% 54 min
Alaska 19 – 0.0% 40 min
American 116 – 0.0% 70 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 2667 LAX 10:39 IAD 18:48 90%
UA 1635 LAX 12:43 IAD 20:48 89%
UA 2282 LAX 23:30 IAD 07:33 89%
· · ·
UA 2268 LAX 08:15 IAD 16:26 84%
All 11 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 IAD 5h 03m 88% 0.6% 2,339 Flying now
American LAX IAD 4h 59m 77% 0.0% 116 Flying now
Alaska LAX IAD 5h 05m 89%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