Is the flight better than driving?

The flight is much faster and more convenient.

How long is the drive?

It is about 24-26 hours of driving time.

What is the best way to get around?

A car is recommended for exploring the mountains, but downtown is walkable.

Are there direct flights?

Yes, many airlines offer direct flights from IAD.

Yes, it is generally safe, but use common sense.

Washington

Denver

Train Flight

Washington to Denver

Updated: 28 May 2026

The journey from Washington DC to Denver covers approximately 1,500 miles. Flying from DCA or IAD to Denver International Airport is the most efficient way to reach the Mile High City. For a scenic adventure, you can take a train from DC to Chicago and transfer to the California Zephyr, which travels through the heart of the Rocky Mountains to Denver. Driving is a massive undertaking that takes at least 24 hours of pure driving time, usually spread over 3 days.

Total Distance: Driving distance 2,700 km, straight-line air distance 2,300 km.

Fastest Way

Non-stop flight from IAD to DEN, taking approximately 4 hours.

Cheapest Way

Budget airlines like Southwest or Frontier, often under $200 if booked in advance.

Compare Washington to Denver Routes

	Train Connecting	Flight Direct
Duration	48 hours	4 hours
Avg Price	$300 - $900	$200 - $500
Operator	Amtrak	United Airlines
Route	Capitol Limited to Chicago, then California Zephyr to Denver.	IAD to DEN non-stop.
Tip	The California Zephyr is widely considered the most scenic train route in the US.	Denver International Airport is a major hub with many flight options.

Travel Tips

Airport Transit
The A-Line train provides a direct link from the airport to downtown Denver.
Driving Strategy
If driving, be prepared for high-altitude driving and potential snow in the mountains.
Altitude
Denver is at a high altitude; drink plenty of water to avoid altitude sickness.
Booking
Book flights in advance to get the best fares.
Weather
Weather in Denver can change quickly; pack layers.

Safety Tips

Driving Safety
Mountain roads can be dangerous; check weather reports before driving.
Public Transit
The RTD light rail is safe and convenient for getting around the city.
Emergency
Keep local emergency numbers saved; Denver is a major city.
Personal Safety
Stick to well-lit areas in downtown at night.