Is there a direct flight?

No, most flights require a connection.

How long is the drive?

The drive takes approximately 30 to 35 hours.

What is the best way to get around?

A car is useful, but public transit is good in the city center.

It is generally safe, but standard city precautions apply.

What is the best time to visit?

Summer is best for outdoor activities.

St. Charles

Seattle

Flight Driving

St. Charles to Seattle

Updated: 30 May 2026

The journey from St. Charles to Seattle is approximately 3,200 kilometers. Flying from St. Louis Lambert International Airport to Seattle-Tacoma International Airport is the most practical method, taking about 6 to 7 hours with a connection. Driving is a major cross-country trip, requiring 30 to 35 hours of road time via I-80 and I-90. This route takes you through the Great Plains and the Rocky Mountains. Seattle is known for its coffee culture, tech industry, and stunning natural beauty. Plan your trip to account for the long distance and potential weather changes.

Total Distance: 3,200 km driving distance; 2,700 km straight-line air distance.

Fastest Way

Flying is the fastest, taking about 6.5 hours total.

Cheapest Way

Flying is often cheaper than the total cost of fuel and hotels for a cross-country drive.

Compare St. Charles to Seattle Routes

	Flight Connecting	Driving Direct
Duration	6 hours 30 mins	32 hours
Avg Price	$300-$600	$500-$700 in fuel
Operator	Alaska Airlines	Personal Vehicle
Route	STL to SEA via Denver or Salt Lake City.	I-70 W to I-80 W to I-90 W through Denver and Billings.
Tip	Book in advance for the best fares.	This is a multi-day trip; plan for overnight stops.

Travel Tips

Rain Gear
Seattle is known for its rain; pack a waterproof jacket.
Transportation
The Link light rail is a convenient way to get from the airport to downtown.
Coffee
Try the local coffee scene; it is world-famous.
Parking
Parking in downtown Seattle is expensive; use public transit.
Events
Check the city calendar for festivals and concerts.