Is I-90 the fastest route?

Yes, I-90 is the primary and most direct highway connecting Renton to Spokane.

Are there trains to Spokane?

Amtrak's Empire Builder serves Spokane, but you must travel to Seattle or Edmonds to board.

How long is the drive?

The drive typically takes 4.5 to 5 hours depending on traffic and weather.

Chains are required by law on mountain passes during winter storm events.

Is there a bus service?

Yes, Greyhound and FlixBus offer service from Seattle to Spokane.

Renton

Spokane

Flight Driving

Renton to Spokane

Updated: 28 May 2026

The journey from Renton to Spokane covers approximately 450 kilometers across the Cascade Mountains. Most travelers prefer driving via Interstate 90, which offers scenic views of Snoqualmie Pass. Alternatively, you can fly from Seattle-Tacoma International Airport to Spokane International Airport in about one hour. The drive typically takes four and a half hours depending on mountain pass conditions. Winter travel requires checking WSDOT reports for chain requirements. This route connects the Puget Sound urban corridor to the Inland Northwest.

Total Distance: 450 km driving distance, 360 km straight-line air distance.

Fastest Way

Flying from SEA to GEG takes one hour, though total travel time including security is three hours.

Cheapest Way

Driving is the cheapest option for groups or families, costing roughly $60 in fuel.

Compare Renton to Spokane Routes

	Flight Direct	Driving Direct
Duration	1 hour	4 hours 30 mins
Avg Price	$120-$250	$50-$80 in fuel
Operator	Alaska Airlines	Personal Vehicle
Route	SEA to GEG	I-90 East through Snoqualmie Pass and Ellensburg.
Tip	Book at least three weeks in advance for lower fares.	Check the WSDOT website for real-time mountain pass closures.

Travel Tips

Pass Conditions
Always check Snoqualmie Pass cameras before departing in winter.
Fuel Stops
Fill up in North Bend before heading over the mountains to avoid higher prices.
Time Zone
Both cities are in the Pacific Time Zone, so no clock adjustment is needed.
Airport Parking
Use the SEA airport garage pre-booking to save on daily parking rates.
Traffic
Avoid leaving Renton on Friday afternoons to bypass heavy I-90 congestion.

Safety Tips

Mountain Driving
Carry tire chains in your vehicle from November through April.
Wildlife
Be alert for deer and elk crossing the highway, especially at dawn and dusk.
Emergency Kit
Keep a winter emergency kit with blankets and water in your trunk.
Cell Service
Expect intermittent cell service gaps through the mountain passes.