Southwest AirlinesWN
Flights WN498 15:55 Mo Th Fr Su
live
Direct flights from Buffalo (BUF) to Las Vegas (LAS): 4 nonstop departures observed each week across 1 airline. 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 14 November 2026 at 08:32 UTC.
BUF
Buffalo
busy · +15
LAS
Las Vegas
disrupted · +279
3,189 km · ~4h 35m est.
Disrupted · 1 airline · 4x weekly · nonstop
40 / 100
route health from live BUF and LAS delay boards
0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~4h 35mestimated from route distance
Weekly departures4x1 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 outcomes11-08KAI613departed+36
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
Conditions are tightest at BUF and LAS: a 38% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +10 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 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?
Significant delay risk. The arrival side at LAS is the weaker end, route health score 40/100. The airports section above carries the live status and delay window at both ends.
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 4 flights a week (sun, mon, thu, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at BUF and arrival-side delay at LAS, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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