Flagstaff, Phoenix and Vegas. Flagstaff is the closest one. The drive there is amazing too.
We went from Vegas and it was amazing!
Depends on what time of year your going . south rim is more popular . I'd go to sky harbor ! in winter the north rim will be harder to access
Phoenix Sky Harbor, Flagstaff airport for South Rim. There's also an airport in Chandler. For North Rim, Las Vegas or the Flagstaff airport.
Flagstaff is the closest one I guess. You can try Phoenix and Las Vegas as well.
Thanks! Your answer is awaiting moderation.