WN271SouthwestIn the air, 28 min late
Left BUF at 15:53, 28 min after its 15:25 slot.
- Landing
- 17:06LAS board estimate · sched 17:15
live
Direct flights from Buffalo (BUF) to Las Vegas (LAS): 7 nonstop departures observed each week across 1 airline. 60% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. 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 Buffalo and Las Vegas. Updated 21 October 2026 at 02:20 UTC.
Today, BUF → LAS
Tue 20 Oct · local times- 08:30 XSR723AirShare LLC Left 08:30 ·
- 15:25 WN271Southwest Left 15:53 +28 LAS est. 17:06In the air · sched 17:15
Checked BUF board 22:18 · LAS board 19:20
BUF
Buffalo
smooth · +6
LAS
Las Vegas
smooth · +0
3,189 km · ~4h 35m est.
Runs mixed · 1 airline · 7x weekly · nonstop
60% on time
of the last 5 operated BUF → LAS flights arrived within 15 minutes
Median arrival delay is +0 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+0 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 outcomes10-20XSR723departed+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 BUF and LAS: 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 Buffalo to Las Vegas route actually runs
Pro Flight Search records official board updates for nonstop BUF 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 — Buffalo (BUF) 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/BUF-LAS
BUF to LAS questions
Is BUF–LAS running on time right now?
Smooth skies ahead. The departure side at BUF is the weaker end, route health score 95/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on BUF–LAS?
Operators schedule morning departures around 06:30 from BUF. 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 BUF to LAS?
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 BUF–LAS 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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