[Led Zeppelin in Las Vegas?]

No.

according to the Timeline they were supposed to play Las Vegas on April 19, 1970 but the show was cancelled due to Plant's illness.

http://www.ledzeppelin.com/show/april-18-1970

April 18, 1970

Phoenix, AZ US

Veterans Memorial Coliseum

Setlist:

We're Gonna Groove, Dazed and Confused, Heartbreaker, Bring It On Home, White Summer / Black Mountainside, Organ solo / Thank You, Moby Dick, Whole Lotta Love.

Notes:

The show is cut short due to Robert Plant feeling ill, which also ends the tour as the following night in Las Vegas is cancelled.

Jimmy Page addresses the audience after Whole Lotta Love: "You've been a fantastic audience, but there's been something happening tonight... Robert's been very ill and as he came off he's just collapsed and we've just called for a doctor. We'd really like to do more, but obviously it's impossible."

Thank you for doing the research! I guess if you lived in Vegas back then and wanted to see Zeppelin you had to go to L.A...

[Led Zeppelin in Las Vegas?]

I was wondering if Led Zeppelin ever performed in Las Vegas. I have checked the tour itinerary history on this website and I don't see any Las Vegas dates. I remember reading once they were booked to play the Las Vegas Convention Center, but Robert Plant had throat problems and it had to be cancelled. If anyone could tell me if they ever played Vegas, where and when would be greatly appreciated. Thank you.