Welcome To Flagstaff Welcome to the Sonesta ES Suites Flagstaff, our surprisingly different take on all-suite, extended-stay accommodations. Surrounded by the natural wonders of the southwest, and centrally located to historic downtown Flagstaff, Lowell Observatory and famous Route 66 our hotel was thoughtfully designed to ensure you a comfortable stay. Take advantage of our seasonal pool until beginning of October or enjoy a cozy night next to our fireplaces! Guests are now able to use fireplaces in specific guest suites and firewood is available for purchase. Whether you are here for business or pleasure our hotel offers spacious suites with multiple bedrooms, and fully equipped kitchens. Stay connected and productive with free Wi-Fi. Feel more at home at ES Suites with free breakfast including fresh coffee and a variety of breakfast offerings. At Sonesta ES Suites Flagstaff, we'll go out of our way to ensure your comfort and relaxation.