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

No clear winner: United’s LAS → IAD flights land within a few points of 9 in 10 on time whatever the hour.

Best time to leave 11 pm–12 am 93% arrive on time from LAS
Best single flight UA 2382 LAS 13:23 → IAD 21:06 · 82% 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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LAS
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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.

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 2382 LAS 13:23 IAD 21:06 82%

All 2 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 1140 LAS 08:48 IAD 16:24 4h 36m 72 87% 0.0% 64 min
UA 2382 LAS 13:23 IAD 21:06 4h 43m 311 82% 0.6% 64 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 LAS IAD 4h 30m 89% 0.6% 980 Flying now

Alternatives with one stop

All connections →
UnitedDetails → LAS 09:37 → DEN 12:41UA 1315 1h 12m Denver DEN 13:53 → IAD 19:22UA 347 6h 45m 96% 84%
UnitedDetails → LAS 23:59 → ORD 05:40UA 726 50m Chicago ORD 06:30 → IAD 09:24 +1UA 1689 6h 25m 78% 77%
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