Late spring in Denver hits the sweet spot. The foothills are green, trailheads aren't swarming yet, and patio season at the RiNo breweries is getting into gear. You get long sunny days for climbing Red Rocks or Mount Galbraith, plus cool evenings made for sitting outside with a fresh IPA.
A solid three-day trip usually runs around $1,200 for flights, a car, lodging, and tabs. You don't have to drain your checking account upfront to make it happen, though. You can put the trip on a card with an intro period and knock it out in predictable monthly slices.
Remember, an intro rate is a deadline, not free money. If you still carry a balance when the 18 months run out, standard interest hits whatever is left. Set up autopay for $66.67 right away so your balance clears quietly in the background.