I often get requests for suggestions on how to get back and forth to the airport and, like most things Mammoth, that's not a super simple question to answer.
There are a few options... Some much better than others.
Private and shared taxis from the airport to Mammoth. Long distance taxis and trailhead taxi service for hikers. Online booking. Be sure to select private transportation if that's what you want. They offer group taxis, and that can be disappointing to guests who are expecting private transport.
MAWS -- Mammoth All Weather Taxi Service
Friendly and professional passenger transportation and shuttle services to or from Mammoth Lakes along the Eastern Sierra Scenic Byway. Point-to-point car service, door to door airport shuttles, long distance car service, trailhead transfers for hikers and backpackers, summer sightseeing tours, and limousine services for larger groups like weddings, corporate, and special events. Online or phone booking.
Take the complimentary Mammoth Shuttle to the Westin, the transfer to the complimentary shuttle to Sonenalp or Mountainside. Stops for Sonenalp are #74 or #75. Mountainside shares the Canyon Lodge parking lot stop. To see the transportation map or read more about the Trolley, read more here. And here.
Adventure Refined Team Assistance:
Depending on your arrival time and other particulars, our maintenance team may be able to pick you up. Please drop me an email or text and I'll be happy to try to arrange it. You can email me at firstname.lastname@example.org or text or call me at 702-423-2371.