Is there a direct train from Delaware to Denver?

No, you must transfer in Chicago via Amtrak.

How long is the flight from PHL to DEN?

Approximately 4 hours and 15 minutes in the air.

What is the best highway for a road trip?

I-80 W is the most direct route across the country.

Do I need a rental car in Denver?

It depends on your plans, but downtown is walkable.

What is the cheapest month to fly?

February and November typically offer the lowest fares.

Millville

Denver

Flight Driving

Millville to Denver

Updated: 31 May 2026

Traveling from Millville to Denver covers approximately 2,700 km. The most efficient route involves driving 2 hours to Philadelphia International Airport (PHL) and taking a direct flight to Denver International Airport (DEN). Driving the entire distance takes roughly 28 hours via I-80 W. You will cross the Appalachian Mountains and the Great Plains. This journey transitions you from the Atlantic coast to the Rocky Mountains.

Total Distance: 2,700 km driving, 2,450 km air distance.

Fastest Way

Flight from PHL to DEN is the fastest, taking 5 hours total.

Cheapest Way

Driving is cheapest if traveling with a group of three or more people.

Compare Millville to Denver Routes

	Flight Direct	Driving Direct
Duration	5 hours	28 hours
Avg Price	$250 - $500	$400 - $600 in fuel
Operator	United Airlines	Personal Vehicle
Route	PHL to DEN	I-76 W to I-80 W
Tip	Book at least 3 weeks in advance for the best rates.	Ensure your vehicle is mountain-ready if traveling in winter.

Travel Tips

Airport Parking
Use long-term parking at PHL to save money compared to daily rates.
Hydration
Denver's high altitude requires you to drink more water than usual.
Sun Protection
The sun is stronger at high altitudes, so wear sunscreen even on cloudy days.
Public Transit
Use the RTD A-Line train to get from DEN airport to downtown Denver.
Time Zone
Remember you are moving from Eastern Time to Mountain Time.

Safety Tips

Mountain Driving
Use lower gears when descending steep mountain passes to prevent brake failure.
Weather Awareness
Check road conditions on I-80 during winter months for snow closures.
Emergency Kit
Keep a winter emergency kit in your car if driving during the colder months.
Altitude Sickness
Monitor yourself for headaches or nausea upon arrival in Denver.