Southwest AirlinesWN
Flights WN5036 varies Th Fr · WN3086 11:30 Su · WN1670 14:35 Sa · WN2090 16:35 Tu We
live
Direct flights from Las Vegas (LAS) to Buffalo (BUF): 7 nonstop departures observed each week across 1 airline. 100% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 12 minutes early. No cancellations were recorded across the 5 tracked flights. The nonstop covers 3,189 km, an estimated 4 hours 35 minutes in the air. Measured by Pro Flight Search from live flight boards at Las Vegas and Buffalo. Updated 21 October 2026 at 02:20 UTC.
Today, LAS → BUF
Tue 20 Oct · local times- 10:05 WN5127Southwest Left 10:14 +9 Landed 16:59 −16
- 10:50 WN5105Southwest Left 10:48 Landed 17:48 −12
- 12:15 WN5130Southwest Left 12:14 Landed 19:08 −22
- 16:35 WN2090Southwest Est. 16:27Departure not confirmed by the board BUF est. 23:45sched 23:50
- · XSR723AirShare LLC Departed Landed 17:44
Checked LAS board 19:20 · BUF board 22:18
LAS
Las Vegas
smooth · +0
BUF
Buffalo
smooth · +0
3,189 km · ~4h 35m est.
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time
of the last 5 operated LAS → BUF flights arrived within 15 minutes
Median arrival delay is −12 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−12 minacross the last 5 operated legs
Flight time~4h 35mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest 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 outcomes10-20XSR723arrived+0
Actual 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
Current conditions put the pressure at LAS and BUF: 43% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Las Vegas to Buffalo route actually runs
Pro Flight Search records official board updates for nonstop LAS to BUF 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 — Las Vegas (LAS) to Buffalo (BUF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LAS-BUF
LAS to BUF questions
Is LAS–BUF running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on LAS–BUF?
Operators schedule morning departures around 11:30 and evening departures around 17:05 from LAS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BUF delay card to confirm conditions when you'd arrive.
How long is the flight from LAS to BUF?
Great-circle distance is 3,189 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 255–303 min gate-to-gate on this route.
How often does LAS–BUF fly?
Southwest Airlines runs the route with about 9 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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