United AirlinesUA
Flights UA1323 09:00 daily · UA2156 12:56 daily · UA2209 17:40 daily
live
Direct flights from Washington (IAD) to Las Vegas (LAS): 21 nonstop departures observed each week across 1 airline. The median arrival is 4 minutes early. No cancellations were recorded across the 9 tracked flights. The nonstop covers 3,316 km, an estimated 4 hours 45 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Las Vegas. Updated 13 November 2026 at 19:22 UTC.
Today, IAD → LAS
Fri 13 Nov · local times- 09:00 UA1323United Left 09:42 +42 Landed 11:18 −4
- 12:56 UA2156United Est. 12:56Departure not confirmed by the board LAS est. 14:42sched 15:17
- · UA2209United On schedule LAS 19:58scheduled
Checked IAD board 10:18 · LAS board 11:22
IAD
Washington
smooth · +14
LAS
Las Vegas
smooth · +0
3,316 km · ~4h 45m est.
Running clean · 1 airline · 21x weekly · nonstop
91 / 100
route health from live IAD and LAS delay boards
Median arrival delay is −4 min. 0 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−4 minacross the last 1 arrival
Flight time~4h 45mestimated from route distance
Weekly departures21x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at LAS: a 36% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +4 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Washington to Las Vegas route actually runs
Pro Flight Search records official board updates for nonstop IAD to LAS flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search: Washington (IAD) to Las Vegas (LAS) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAD-LAS
IAD to LAS questions
Is IAD–LAS running on time right now?
Smooth skies ahead. The departure side at IAD is the weaker end, route health score 91/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAD–LAS?
Operators schedule morning departures around 09:00 and evening departures around 17:40 from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the LAS delay card to confirm conditions when you'd arrive.
How long is the flight from IAD to LAS?
Great-circle distance is 3,316 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 264–314 min gate-to-gate on this route.
How often does IAD–LAS fly?
United Airlines runs the route with about 21 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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