How long is the flight?

The flight is approximately 1 hour and 15 minutes.

There is no direct passenger train service to Boise.

A car is recommended if you plan to explore the surrounding areas.

What is the best time to visit?

Summer for outdoor activities and fall for pleasant weather.

There are no major toll roads in the Boise area.

Renton

Boise

Flight Driving

Renton to Boise

Updated: 28 May 2026

The distance from Renton to Boise is approximately 800 kilometers. Flying from Seattle-Tacoma International Airport to Boise Airport is the most efficient method, taking about one hour and 15 minutes. Driving is a popular and scenic route, requiring 8 to 9 hours of driving time through the Cascade Mountains and the high desert of Eastern Oregon. Most travelers enjoy the drive for its changing landscapes, but flying is the fastest option.

Total Distance: 800 km driving distance, 650 km straight-line air distance.

Fastest Way

A direct flight from SEA to BOI is the fastest way to reach Boise.

Cheapest Way

Driving is generally the most cost-effective option for groups or families.

Compare Renton to Boise Routes

	Flight Direct	Driving Direct
Duration	1 hour 15 mins	8 hours 30 mins
Avg Price	$80-$180	$100-$150 in fuel
Operator	Alaska Airlines	Personal Vehicle
Route	SEA to BOI	I-90 to I-84 through Eastern Washington and Oregon.
Tip	Boise Airport is very close to downtown, making it easy to reach.	The drive through the Blue Mountains is beautiful but watch for winter weather.

Travel Tips

Outdoor Activities
Boise is a hub for outdoor recreation; bring your hiking or biking gear.
Downtown
The downtown area is very walkable and full of restaurants and shops.
Weather
Boise has four distinct seasons; check the forecast before you travel.
Transportation
A car is recommended if you plan to explore the surrounding areas.
Local Events
Check the local calendar for festivals and events in the city.

Safety Tips

Mountain Driving
If driving, be prepared for winter conditions on mountain passes.
Hydration
Stay hydrated, especially during the summer months.
Emergency Prep
Keep a winter emergency kit in your car if you are driving in the mountains.
Sun Safety
Protect your skin from the sun, especially at higher elevations.