Harry Reid International Airport in Las Vegas is under a Federal Aviation Administration ground delay program Sunday evening, August 9, 2026, with an average assigned delay of 63 minutes and a maximum of 144 minutes driven by wind, not a volume only slowdown.
If you fly into or out of LAS tonight, recheck status before curb drop-off, protect tight connections, and treat published departure times as provisional until the Expect Departure Clearance Time window clears.
- Airport: Harry Reid International Airport (LAS) in Las Vegas, Nevada.
- Program: FAA CDM ground delay for arrivals Sunday evening into late night.
- Averages: Average delay 63 minutes; maximum assigned delay 144 minutes.
- Cause listed: Weather and wind; earlier ground stop canceled.
- Runways noted: Arrivals 19R and departures 08L on the advisory.
What the FAA published for Las Vegas
The Air Traffic Control System Command Center issued ATCSCC Advisory 141 for LAS and Los Angeles Center on August 9, 2026. The message is a Collaborative Decision Making ground delay program for the airport element, with delay assignment mode UDP.
Arrivals are estimated from 2226Z on August 9 through 0459Z on August 10. In Pacific Daylight Time that is about 3:26 p.m. through 9:59 p.m. PDT. In Eastern Daylight Time the same window runs from about 6:26 p.m. Sunday through 12:59 a.m. Monday.
Program rates step through 28, 32, 40, 44, 44, 48, and 48 as the window progresses. Controllers use those rates to meter how many aircraft can land without stacking more traffic than wind limited runways can accept. The delay assignment table applies across Los Angeles Center, and the advisory includes contiguous United States departures plus a long list of domestic center scopes that can still sit for a LAS arrival slot.
Maximum delay is 144 minutes and average delay is 63 minutes. Impacting condition is listed as weather and wind. Comments note arrivals on 19R, departures on 08L, low pop up handling, and that a prior ground stop was canceled when the program shifted to a metered GDP.
That wind label matters for traveler expectations. This is not the same story as a heat driven weight restriction day or a pure volume program under blue skies. Crosswinds and gusts can force runway configurations that cut the safe arrival rate even when the terminal still looks busy and open.
A ground delay program holds flights at origin airports so Las Vegas does not fill with airborne aircraft waiting for a runway. Your boarding pass may show on time boarding while the aircraft still waits for an Expect Departure Clearance Time, or EDCT.
How a wind GDP feels on the ground
Las Vegas sits in a desert basin where afternoon and evening wind events can flip the active runway plan quickly. When arrivals are forced onto 19R and departures onto 08L, the airport still operates, but the acceptance rate drops and the Command Center meters the flow with a GDP instead of stacking holding patterns over the valley.
For outbound travelers from LAS, the inbound delay can still matter. Late arrivals free gates late, crews time out, and turn times compress. A 63 minute average on paper can become a longer gate hold when the aircraft is still en route under an EDCT and ground equipment is reassigned across a delayed bank.
For inbound travelers, the practical test is connection risk and hotel timing. If you need a tight domestic turn in Las Vegas after a late arrival, rebook early rather than hoping the next flight holds. If LAS is your final city for a Strip show or conference, the cost is more often a missed curtain or a late bag than a missed international bank, but rideshare and parking queues stack when delayed banks land together.
Use three concrete checks before you leave for the airport. First, open the airline app and refresh status every 20 to 30 minutes until wheels up. Second, map your connection or show buffer against the delay already showing, not the original timetable. Third, if the inbound slip already erases a safe turn or a hard appointment, rebook or shift plans while same day seats and tickets remain.
Decision rule for tonight: if your Las Vegas connection would drop below about 60 minutes after the delay already published, rebook before the origin departure when a free change path is open. If you are flying into LAS for a timed event, treat a 63 minute average as a reason to move the airport pickup later rather than waiting curb side early.
What to do if you are already delayed
Keep bag tags and boarding passes handy when you speak with agents. Wind delays can cascade into misconnects even when the sky looks clear at your origin city, and bag recovery takes longer when many LAS flights slip together.
Airline hotel coverage is more common for controllable carrier issues than for pure weather and airspace programs. Ask your carrier for the contract of carriage answer, then keep a backup lodging plan near the airport or on the Strip if the last bank collapses. Screenshot the original itinerary and any EDCT notices before cellular networks congest after a delayed bank lands.
If a multi hour gap appears in Las Vegas after a rebook, you may still use the time productively when bag status and security re entry timing support a short exit. Deep Arrival’s Las Vegas things to do guide helps turn a long connection into a planned mini stop rather than a pure terminal sit. Only leave the airport when the new departure truly supports the trip, and recheck TSA wait tools before you re enter.
Rideshare and parking plans should include buffer. When banks re form after a wind GDP, curb zones and garage exits congest even after the airborne delay shrinks. International travelers connecting through LAS should treat passport and customs timing as fixed costs on top of the GDP average.
Airline apps sometimes show a small status change before the gate display updates. Trust the later of the two times when they disagree, and ask a gate agent before leaving a long security line for a coffee run that could cost the boarding group.
If you hold Basic Economy or similar restrictive fares, rebooking windows can be narrower even when wind delays hit the network. Confirm whether a fee waiver applies on your ticket stock before you assume a free same day change. Corporate travelers with same day meetings on the Strip or in downtown Las Vegas should message hosts early when the average delay is already above an hour.
Keep one flexible backup itinerary for the late evening bank. When program rates start near 28 arrivals per hour and only step up later in the window, recovery can lag the formal end time on the advisory.
Why this is distinct from other August 9 airport programs
Sunday also saw other United States airports under ground delay tools for volume or equipment reasons. The Las Vegas notice is a named wind program at LAS with its own advisory number, runway notes, and 63 minute average. That makes it a separate traveler decision from a San Diego volume program or a Philadelphia equipment outage, even though the tool name is the same.
Travelers comparing airports should not assume one West Coast GDP equals another. SAN volume metering and LAS wind metering hit different runways, different airline banks, and different connection patterns. Always open the advisory for the airport code on your ticket rather than reading a national delay headline as if every hub shares one number.
National Airspace System status boards list airport delay tiles that travelers can refresh through the evening at nasstatus.faa.gov. Pair that board with the airline app and the Command Center advisory text when the numbers disagree, because the advisory carries the official average, maximum, and runway notes for this LAS program.
| If you… | What to do |
|---|---|
| Fly to or from LAS tonight | Recheck status before curb drop-off and treat boarding as provisional until wheels up. |
| Hold a tight Las Vegas connection | Rebook early if the published delay already erases a safe buffer. |
| Depart a clear origin city toward LAS | Expect possible EDCT holds even when local weather is fine. |
| Need a timed Strip show or meeting | Shift pickup later using the 63 minute average as the planning floor. |
| Face an overnight after a misconnect | Ask the airline about coverage, then keep a paid backup room plan ready. |
- Same night LAS fliers: Wind GDP averages can hide longer gate holds when aircraft and crews slip together.
- Connecting passengers: Rebook before origin departure if the Las Vegas turn is already unsafe.
- Origin cities outside Nevada: Clear skies at home do not cancel a LAS wind arrival program.
- Late evening banks: Recheck after 10:00 p.m. PDT as the listed program window ends and residual delays clear.
- Ground transport: Add curb and parking time when delayed banks re form at Harry Reid.
Program numbers above come from the FAA Command Center advisory. Refresh airline status into early Monday if residual wind or runway constraints remain after the formal window closes.
Is Las Vegas under a ground stop or a ground delay program tonight?
The August 9 advisory is a CDM ground delay program for LAS arrivals with average delay 63 minutes and maximum delay 144 minutes for wind. The notice says the earlier ground stop was canceled.
Why am I delayed if my origin city weather looks fine?
Wind programs meter arrivals into Harry Reid when runway configuration and gusts cut the safe acceptance rate. Clear skies at the departure city can still produce EDCT holds for LAS.
How long will the LAS wind program last?
The advisory lists arrivals estimated through 0459Z on August 10, about 9:59 p.m. PDT Sunday. Recheck live airline status and NAS updates for residual delays after that window.
Should I rebook a tight connection through Las Vegas?
Yes, if the published delay already leaves less than about 60 minutes for a domestic connection. Rebook before the origin departure when seats remain.
