ONT → LASOntario to Las Vegas

live

Direct flights from Ontario (ONT) to Las Vegas (LAS): 13 nonstop departures observed each week across 2 airlines. The median arrival is 15 minutes late. No cancellations were recorded across the 3 tracked flights. The nonstop covers 317 km, an estimated 54 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Las Vegas. Updated 9 September 2026 at 08:08 UTC.

ONT Ontario busy · +15
LAS Las Vegas smooth · +0
317 km · ~0h 54m est.
dep bank 05:40–22:1713x weekly
Running clean · 2 airlines · 13x weekly · nonstop
90 / 100

route health from live ONT and LAS delay boards

Median arrival delay is +15 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+15 minacross the last 3 operated legs
Flight time~0h 54mestimated from route distance
Weekly departures13x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Frontier AirlinesSouthwest 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 days
Frontier AirlinesF9

Flights F92232 11:50 Mo We Th Fr Sa Su · F94758 15:40 daily · F94206 22:17 Mo Th Fr

Southwest AirlinesWN

Flights WN3080 varies Mo Tu We Th Fr Sa · WN927 07:45 Tu We · WN2235 08:30 Mo Th Fr · WN4314 09:40 Tu We

History

operated legs · board outcomes
09-08F94758dep +17 → arr−7
09-08WN1037departed+47
09-08WN554departed+15

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ONTOntario +15 min busy 🌤 mostly cloudy · NNE 3 kt Full ONT delay board →
LASLas Vegas +0 min smooth 🌤 scattered clouds · W 6 kt Full LAS delay board →

Weather lens

Current conditions put the pressure at ONT and LAS: 43% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Ontario to Las Vegas route actually runs

Pro Flight Search records official board updates for nonstop ONT 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 — Ontario (ONT) to Las Vegas (LAS) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ONT-LAS
How we measure this →

ONT to LAS questions

Is ONT–LAS running on time right now?

Smooth skies ahead. The departure side at ONT is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on ONT–LAS?

Operators schedule morning departures around 07:45 and evening departures around 17:45 from ONT. 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 ONT to LAS?

Great-circle distance is 317 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 52–57 min gate-to-gate on this route.

How often does ONT–LAS fly?

2 carriers operate this route, around 41 flights a week between them. Compare carrier days and times in the airline list above.