ONT → LASOntario to Las Vegas

live

Direct flights from Ontario (ONT) to Las Vegas (LAS): 52 nonstop departures observed each week across 2 airlines. No cancellations were recorded across the 1 tracked flight. 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 14 November 2026 at 14:27 UTC.

Today, ONT → LAS

Sat 14 Nov · local times
WN1143SouthwestIn the air, 19 min late

Left ONT at 06:04, 19 min after its 05:45 slot.

Landing
06:48LAS board estimate · sched 06:50
Track WN1143 →
  1. 05:45 WN1143Southwest Left 06:04 +19 LAS est. 06:48In the air · sched 06:50
  2. 09:05 WN2930Southwest On scheduleT4 LAS 10:10scheduled
  3. 10:00 F92232Frontier On schedule LAS est. 12:27 +80sched 11:07
  4. · F94206 On schedule LAS 18:18scheduled
  5. · WN1014 On schedule LAS est. 14:31sched 14:30
  6. · WN597 On schedule LAS est. 11:45 +10sched 11:35

Checked ONT board 06:18 · LAS board 06:27

ONT Ontario smooth · +6
LAS Las Vegas disrupted · +189
317 km · ~0h 54m est.
dep bank 05:35–20:4552x weekly
Under pressure · 2 airlines · 52x weekly · nonstop
45 / 100

route health from live ONT and LAS delay boards

0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Flight time~0h 54mestimated from route distance
Weekly departures52x2 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 varies Tu We Sa · F94758 14:23 Mo Th Fr Su · F94206 varies daily

Southwest AirlinesWN

Flights WN2184 05:35 Mo Tu We Th Fr Su · WN1143 05:45 Sa · WN197 07:00 Mo Th Fr Su · WN1903 08:40 Tu We

History

operated legs · board outcomes
11-14WN1143departed+19

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 +6 min smooth 🌤 few clouds · SW 3 kt Full ONT delay board →
LASLas Vegas +189 min disrupted 🌤 scattered clouds · SSW 9 kt Full LAS delay board →

Weather lens

Conditions are tightest at ONT and LAS: a 41% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +8 min. Both figures come from the two airports' delay records in similar weather. 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?

Significant delay risk. The arrival side at LAS is the weaker end, route health score 45/100. 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 05:35 and evening departures around 18:50 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 52 flights a week between them. Compare carrier days and times in the airline list above.