Telluride Bluegrass festival is a blast!!! You can fly right into Telluride but limited flights and expensive, you can also fly into Montrose and rent a car (I believe it is about 45min away) No Marriotts nearby but hotels and lots of people camp - make your reservations early - biggest event of the season out there....also really recommend Telluride Wine Festival.
The Telluride Bluegrass Fetival is an awesome experience for bluegrass music lovers and for those who want to bring an instrument and participate. The festival is fun for all ages and families. My sister attends yearly as well as my son who plays various string instruments in some of the open music groups. The festival continues to grow and attract known music artists. One major caution is to book hotel rooms many months ahead of time as the town fills up quickly. there are great restaurants and places to see in and around Telluride including great jeep trails.
Regarding airports, the closest decent airport is Montrose, CO about 1.5 hours from Telluride by car. You can rent cars in Montrose as well. The next closest airport is Grand Junction, CO about 2.5 hours away which has many more flights per day and more airline variety. Durango, CO is another option and has a larger airport than Grand Junction with more airline availability.
There are no Marriotts in Telluride or Montrose. Grand Juction has both a Residence Inn and Courtyard almost walking distance from the airport itself. As with hotels, it is best to book flights many months before the festival as seats fill up fast and rates increase exponentially for summer rates.
Telluride is a GREAT town. Everything is pretty much within a 3 or 4 block radius, so you can walk to almost everything. There are no Marriott brand hotels in Telluride, however. Keeping this in mind, if you are looking for a centralized location to stay, I recommend the Hotel Telluride. It's a small hotel, but very well maintained, and much more comfortable than camping would be. There are also a nice variety of places to dine in town that won't set you back like restaurants in Aspen or Vail. Just don't look at the prices of local real estate...they've skyrocketed almost to the Aspen/Vail range.
As far as which airport to fly into, Montrose and Durango are probably the closest (besides Telluride itself, of course). These are both small airports, so you'll probably have to transfer from the nearest large airport (either Denver or Albuquerque). It takes a concerted effort to get to Telluride, but once you've finally gotten there, it will be worth all the effort!
Fly into Durango, CO. The closest Marriott property is a Residence Inn in Durango. However, that's a 2-3 hour drive from Telluride (less than 50 miles by crow but over a hundred on mountain roads by either of two spectacular routes). I recommend driving through Silverton and Ouray over the "Million Dollar Highway".
You can either camp or find a small, privately owned motel or B&B. (Sorry, Mr. Marriott) Book early, they'll sell out during the festival.
Telluride is a wonderful place and the Blue Grass is special.
I suggest you fly into Grand Junction, CO and rent a car. Your alternatives are Montrose, Telluride and Durango. If you drive from Durango there are mountain passes to drive through. A ticket to Telluride may be expensive. Montrose is closer than Grand Junction, but there are very few flights in the summer.
Enjoy your trip. I live in Grand Junction and love it.
There are Marriott properties in Grand Junction.
Funny you should mention this as I fly into Telluride quite often. YOu can get a connection to there through Denver on Great Lakes. Cost is ???? But that is about as close as it gets. 10-15 minute ride down the hill to the town. I recommend the Telluride Inn. Great digs and the scenery is nice. Try the Free Lift up the hill. Spectacular views. Bring a video camera or a digital camera at least. Hope this is of use. Take care.
You can fly into Cortez, and rent a car. It's a spectacular drive up to Telluride, but does take a couple of hours. If you are really looking for something really special, try Dunton Hot Springs, about 40 minutes from Telluride. The most amazing place I have ever stayed. www.duntonhotsprings.com