Do You Need a Rental Car in Colorado?

Planning your trip to Colorado treats a rental car as close to mandatory, and for most itineraries it is. But “most” isn’t “all,” and if your plans are narrow enough, a car genuinely isn’t the only option. Here’s how to tell which category you’re in before you book one out of habit.

The case where you can skip it

This works only if every piece of your trip stays inside Denver itself:

• Your county clerk’s office is inside Denver (the City and County of Denver runs its own office) or another spot reachable by rideshare from where you’re staying.
• Your ceremony site is also inside the city, not a mountain trailhead or a national park.
• The apostille office — 1700 Broadway, Suite 550, downtown — is the same trip.

Denver International Airport connects to downtown via the RTD A Line, a train that runs every 15 minutes at peak times and takes about 35–40 minutes to reach Union Station, for $10.50 one-way. From Union Station, rideshare and Denver’s own transit cover the rest. If your whole itinerary is admin-plus-a-city-ceremony, you can realistically run the entire trip on that train plus Uber or Lyft, and skip the rental car line at the airport entirely.

This is a real option, not a technicality, but it’s a narrow one. It doesn’t extend to a mountain ceremony, a different license county, or a side trip to Rocky Mountain National Park or Garden of the Gods.

The case where you need one

Once your plans include any of the following, budget for a rental car:

• A ceremony site outside city limits. Mountain trailheads, national park sites, and most of the scenic spots within two hours of Denver aren’t reliably served by rideshare, and drivers often won’t take a fare that far outside their usual radius anyway.
• A license county that isn’t your ceremony county. Your license is valid statewide, so plenty of couples apply somewhere convenient and hold the ceremony somewhere scenic. That means two separate stops, not one, and they’re rarely close enough to walk or cheaply rideshare between; see how the counties compare before picking either.
• Any buffer time built in for altitude. If your ceremony site sits above 7,500 ft, see attire and altitude prep for why arriving a couple of days early matters, and a car makes those extra days useful instead of stuck near the hotel.

Renting with a foreign driver’s license

Most major US rental brands will rent to you on a valid driver’s license from your home country, as long as it has your photo and stays valid through your return date, plus your passport as a second form of ID. If your license isn’t printed in English or in Latin characters, bring an International Driving Permit alongside it, per AAA Colorado’s guidance for international visitors. An IDP supplements your home license; it doesn’t replace it, so you can’t rent on the IDP alone. Confirm your specific rental brand’s policy before you fly, since requirements vary slightly company to company.

Exact age minimums, young-driver surcharges, and deposit-hold amounts vary by rental company and by branch location, and we haven’t confirmed current figures for Denver specifically. Check these directly with your chosen rental company when you book.

The middle case: rideshare for the errands, a car for the ceremony

A workable hybrid some couples miss: use rideshare or the A Line for the Denver-based paperwork days, then rent a car for a shorter window that covers only the ceremony leg of the trip. Rental pricing is generally by the day, so this can trim the cost compared to renting for the entire visit, if your itinerary has a clean split between “admin days in the city” and “ceremony days in the mountains.”