Flight
Durango Airport is definitely the most convenient airport. The drive to downtown Durango is ~25 minutes and there are daily flights with American Airlines and United Airlines. Because it is a smaller airport check-in and security is a breeze, but flights are generally more expensive than Albuquerque or Denver. We use it the most often; after factoring in travel time and driving costs, it's often a wash.
Flight
Albuquerque is the nearest international airport. It is larger than Durango with more flights and airlines, but is still small enough that for a relatively easy in and out. The drive from Albuquerque airport to downtown Durango takes approximately 3.5-4 hours, a large stretch of which is quite remote (though the Navajo Nation Reservation). The scenery can be beautiful, but there aren't many places to stop after dark.
Flight
Denver Airport is a regional hub, so there are generally a lot of flights. It is about 6.5 hours from Durango; it's a beautiful drive, but does involve numerous mountain passes and depending on the time of day, traffic can make the trip take an hour or two longer. (The airport is North of Denver, and you'll need to travel South past the city to head for Durango.)
Rental Car
Want to check two items off your list at once and really explore the Southwest?! Consider renting an RV and combine your rental car and lodging costs. There are many places to park in and around Durango, and there is a campground 5 minutes from the wedding venue that would make it even more convenient! Chris stopped by checked out Durango RV Rentals, a local small business, and said there are some very nice ones for pretty reasonable prices. The owners are very helpful.
Rental Car
There are numerous rental car companies operating out of Durango Airport: Alamo, Avis, Enterprise, Hertz, and National.
House Or Rental
Purgatory Mountain Resort is a popular local ski resort in the winter, and a great spot to rent townhouses, condos, or houses in the summer at steeply discounted off-season rates. It is located about halfway between Silverton and Durango with spectacular views and even some summer activities that are fun for the family. The drive between Purgatory and the venue is a little over an hour. We hope to provide a shuttle to/from the wedding venue to help make it easier to take advantage of this option if there are enough people staying there. (https://www.purgatoryresort.com/?season=summer)
House Or Rental
Eureka Campground is just down the hill from the wedding venue (less than 5 minutes!) in a pretty valley near a river (and seasonal waterfall!). For those willing to embrace the Colorado lifestyle, this a great option for the day before and of the wedding. There is tent camping, electric hook-ups for RVs, and even a few rustic cabins (with electricity) for rent. There is also a 4-wheel drive trail just up the road that leads to a mining ghost town that is fun to explore.