With cooler weather, fewer crowds, and some leaves changing early in the month, September is one of the easiest and most beautiful times to travel around the United States. Here are the best places to visit in September in USA, ranging from cozy mountain retreats to breweries and farmers markets in a trendy city.

Santa Fe 

September transforms "The City Different" into a magical destination full of bucket-list events in beautiful Santa Fe.
Experience the spirit of Santa Fe during the annual Fiesta de Sante Fe, the United States' longest-running celebration.
There are numerous other festivals to attend and see who will emerge victorious in the battle of the best green chilli cheeseburgers during the Green Chile Cheeseburger Smackdown.
Travel back in time to the Kingdom of Golondrinas to sample delectable cuisine, dance to mediaeval music at the Renaissance Fair, and watch mutton bustin' or youth barrel racing at The Rodeo de Santa Fe (one of the top 60 rodeos in the country!).

Colorado Springs

One of the best times to visit Colorado Springs is in September, when the top attractions are less crowded. It is also an excellent time to take advantage of the numerous Colorado Springs day trips!  On Labor Day Weekend, a great activity to check out with your family is the Labor Day Lift Off, which includes a remote control balloon display around the city, aerial acrobats, balloon rides, battle of the bands, paddle boarding, concert series, taekwondo exhibition, skydiving, vendors, and much more. 

Air show enthusiasts should definitely plan on attending the Pikes Peak Regional Air Show to see live demonstrations, aeroplane displays, and even WWII-era Flying Warbirds! September is also an excellent month for outdoor activities such as hiking and biking in nearby parks such as Pike National Forest. There are also many charming small towns nearby.