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Flights in the desert Southwest ran into midweek turbulence on Wednesday, as gusty winds slowed operations in Las Vegas and thunderstorms pushed delays and cancellations at Phoenix Sky Harbor, complicating travel for passengers connecting through two of the region’s busiest airports.
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Las Vegas: Gusty winds ripple through Harry Reid’s schedule
Publicly available flight-tracking data showed disruption building at Harry Reid International Airport (LAS) on Wednesday, with delays affecting both inbound and departing aircraft as wind conditions intensified across Southern Nevada.
Published coverage and flight-tracking totals indicated 111 delays and one cancellation at LAS during the day. By midafternoon, inbound and outbound delays were nearly evenly split, a sign that arrival spacing and gate schedules were tightening at the same time passengers were lining up for departures.
Forecast information for the Las Vegas area pointed to sustained southerly winds in the mid-teens (mph) with higher gusts into the late afternoon and evening. For a major hub with dense banked schedules, gusty surface winds can slow arrival and departure rates, increase runway configuration changes, and create stop-and-go flow restrictions that cascade into later flights.
Phoenix: Thunderstorms trigger a midday ground stop and more cancellations
In Phoenix, the more disruptive factor was convective weather. Reports indicated a ground stop was implemented at Phoenix Sky Harbor International Airport (PHX) from around noon until about 1:15 p.m. local time as thunderstorms moved through the area.
As the weather pushed across the airport, published coverage described more than 70 flights delayed and nine canceled based on airport-reported figures, while flight-tracking totals showed a larger impact: roughly 196 delays and eight cancellations. Differences between airport summaries and tracker tallies can appear during fast-changing events, especially when delays pile up across multiple carriers and arrival streams.
For travelers, a ground stop can be especially confusing because it often affects flights before they ever leave their origin airport. Even if Phoenix skies look improved after a storm line passes, the backlog of aircraft and crews can take hours to unwind, particularly during the afternoon and early-evening peak.
FAA outlook flagged both cities for weather-related slowdowns
Broader air-traffic planning information for Wednesday highlighted the same pattern travelers experienced on the ground: gusty winds expected to slow traffic in Las Vegas and thunderstorms capable of delaying flights in Phoenix.
That type of nationwide outlook matters because it frames how quickly disruptions can spread beyond local weather. A delay program in one metro area can strand aircraft and crews that were scheduled to continue to other cities, turning a short hold into missed connections later in the day.
In practical terms, travelers routing through LAS or PHX on Wednesday often faced two layers of risk at once: local operational slowdowns and knock-on delays caused by late inbound aircraft from elsewhere in the network.
What travelers can do during wind and thunderstorm disruptions
For passengers traveling Wednesday, the most time-saving step was monitoring the status of the inbound aircraft operating their flight, not just the departure time shown on a boarding pass. When winds or thunderstorms constrain airport capacity, airlines may keep a flight listed “on time” until the inbound plane is clearly delayed, then update the schedule rapidly.
Travelers dealing with rolling delays typically have better outcomes when they re-check seat availability on alternate departures as soon as a delay posts, rather than waiting at the gate for multiple incremental updates. On short-haul routes such as Las Vegas to Phoenix, disruptions can also lead to aircraft substitutions or schedule reshuffles that change gates and boarding times.
Because thunderstorms can cause temporary ground stops while winds can create longer periods of reduced arrival and departure rates, travelers were often better served planning for extended airport time: keeping chargers accessible, carrying essentials in a personal item, and allowing extra time for tight same-day connections, especially in the late afternoon and evening when earlier delays tend to compound.