How long is the flight?

The flight is approximately 2 hours and 30 minutes.

Is it better to drive or fly?

Flying is much faster and more practical.

A car is helpful for exploring the mountains.

What is the best time to visit?

Summer and Winter are both popular.

Are there direct flights?

Yes, several airlines offer direct service from SeaTac.

Lacey

Denver

Flight Driving

Lacey to Denver

Updated: 28 May 2026

The trip from Lacey to Denver is a scenic journey across the Rocky Mountains. You can drive 1,300 miles via I-90 and I-80, taking about 20 hours. A direct flight from SeaTac to Denver International Airport (DEN) takes about 2.5 hours. Denver is a gateway to the Rockies and offers a vibrant urban culture.

Total Distance: 2,100 km driving distance; 1,600 km straight-line air distance.

Fastest Way

Flying from SeaTac to DEN is the fastest, taking about 2.5 hours.

Cheapest Way

Flying is generally more economical than the cost of fuel and lodging for a multi-day drive.

Compare Lacey to Denver Routes

	Flight Direct	Driving Direct
Duration	2 hours 30 mins	20 hours
Avg Price	$120-$300	$230-$280 in fuel
Operator	United Airlines	Personal Vehicle
Route	SEA to DEN.	I-90 East to I-80 East.
Tip	Book in advance for the best fares.	Be prepared for mountain driving conditions.

Travel Tips

Altitude
Denver is at a high altitude; drink extra water to prevent altitude sickness.
Weather
Mountain weather changes rapidly; always bring layers.
Transportation
Use the A-Line train to get from the airport to downtown.
Driving
If driving in winter, ensure your vehicle has snow tires or chains.
Sun Protection
The sun is stronger at high altitudes; wear sunscreen.