Sun Country AirlinesSY
Flights SY171 varies Th Su
live
Direct flights from Las Vegas (LAS) to Williston (XWA): 2 nonstop departures observed each week across 1 airline. The median arrival is on schedule. No cancellations were recorded across the 2 tracked flights. The nonstop covers 1,644 km, an estimated 2 hours 36 minutes in the air. Measured by Pro Flight Search from live flight boards at Las Vegas and Williston. Updated 14 September 2026 at 01:08 UTC.
LAS
Las Vegas
smooth · +6
XWA
Williston
tracking
1,644 km · ~2h 36m est.
Running clean · 1 airline · 2x weekly · nonstop
90 / 100
route health from live LAS and XWA delay boards
Median arrival delay is +0 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+0 minacross the last 2 operated legs
Flight time~2h 36mestimated from route distance
Weekly departures2x1 direct airline on the leg
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 boardsnext sweep in 120s
How the Las Vegas to Williston route actually runs
Pro Flight Search records official board updates for nonstop LAS to XWA 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 Williston (XWA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LAS-XWA
LAS to XWA questions
Is LAS–XWA running on time right now?
Smooth skies ahead. The departure side at LAS is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LAS to XWA?
Great-circle distance is 1,644 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 146–171 min gate-to-gate on this route.
How often does LAS–XWA fly?
Sun Country Airlines runs the route with about 2 flights a week (sun, thu). 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 LAS and arrival-side delay at XWA, 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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