Las Vegas's big events, and how busy they make the city
Every event here is verified by a person, dated from its own organiser, and set against Las Vegas's day-by-day crowd forecast — so they can be ranked on one scale. "Major" here means an event we have checked and approved as one of Las Vegas's biggest, whose days our own forecast reads Busy or Packed — or, for now, sit beyond the forecast window. See the city, day by day →
Calm · Lively · Busy · Packed rank a day against Las Vegas's own year — not a headcount.
joint #1 Automate →
10–13 May 2027 — we checked these dates against the organiser's own site
Automate is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 Automate in Las Vegas runs 10–13 May 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 CES →
6–9 January 2027 — we checked these dates against the organiser's own site
CES is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 CES in Las Vegas runs 6–9 Jan 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 DEF CON →
5–8 August 2027 — we checked these dates against the organiser's own site
DEF CON is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 DEF CON in Las Vegas runs 5–8 Aug 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 NAB Show →
4–7 April 2027 — we checked these dates against the organiser's own site
NAB Show is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 NAB Show in Las Vegas runs 4–7 Apr 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 NASCAR Pennzoil 400 weekend →
19–21 March 2027 — we checked these dates against the organiser's own site
NASCAR Pennzoil 400 weekend is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 NASCAR Pennzoil 400 weekend in Las Vegas runs 19–21 Mar 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 New Year's Eve on the Las Vegas Strip →
31 December 2026 — we checked these dates against the organiser's own site
New Year's Eve on the Las Vegas Strip is joint busiest of Las Vegas's 10 verified major events — its day is Packed, busier than 99% of Las Vegas's year.
The 2026 New Year's Eve on the Las Vegas Strip in Las Vegas runs 31 Dec 2026, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 SHOT Show →
19–22 January 2027 — we checked these dates against the organiser's own site
SHOT Show is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 SHOT Show in Las Vegas runs 19–22 Jan 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
joint #1 World of Concrete →
18–21 January 2027 — we checked these dates against the organiser's own site
World of Concrete is joint busiest of Las Vegas's 10 verified major events — its busiest day is Packed, busier than 99% of Las Vegas's year.
The 2027 World of Concrete in Las Vegas runs 18–21 Jan 2027, confirmed; expect Packed days — busier than 99% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
#9 Design & Construction Week (IBS and KBIS) →
2–4 February 2027 — we checked these dates against the organiser's own site
Design & Construction Week ranks #9 of Las Vegas's 10 verified major events by crowd impact — its busiest day is Packed, busier than 95% of Las Vegas's year.
The 2027 Design & Construction Week in Las Vegas runs 2–4 Feb 2027, confirmed; expect Packed days — busier than 95% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
#10 Rock 'n' Roll Las Vegas →
20–21 February 2027 — we checked these dates against the organiser's own site
Rock 'n' Roll Las Vegas ranks #10 of Las Vegas's 10 verified major events by crowd impact — its busiest day is Busy, busier than 67% of Las Vegas's year.
The 2027 Rock 'n' Roll Las Vegas in Las Vegas runs 20–21 Feb 2027, confirmed; expect Busy days — busier than 67% of Las Vegas's year. (Avoid-Crowds, as of 2026-09-14; recomputed nightly.)
Planning Las Vegas around these dates? Timed entries and tours matched to the day's forecast
Who writes the city guides · Disclaimer — event dates can change; expected dates are labelled and can move.