Flight
Driving
Lacey to Boise
Updated: 28 May 2026
The trip from Lacey to Boise is a 400-mile drive via I-90 and I-84, taking about 7 hours. A flight from SeaTac to Boise Airport (BOI) takes about 1.5 hours. Boise is a growing city known for its outdoor lifestyle and vibrant downtown.
Total Distance: 650 km driving distance; 500 km straight-line air distance.
Fastest Way
Flying from SeaTac to BOI is the fastest, taking about 1.5 hours.
Cheapest Way
Driving is the most economical option for individuals or groups.
Compare Lacey to Boise Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 1 hour 30 mins | 7 hours |
| Avg Price | $100-$250 | $90-$120 in fuel |
| Operator | Alaska Airlines | Personal Vehicle |
| Route | SEA to BOI. | I-90 East to I-84 East. |
| Tip | Book in advance for the best fares. | A straightforward drive through the mountains. |
Travel Tips
-
WeatherBoise has hot summers and cold winters; pack accordingly.
-
TransportationThe city is bike-friendly and easy to navigate.
-
DrivingIf driving in winter, be prepared for snow on mountain passes.
-
HydrationThe air is dry; drink plenty of water.
-
Sun ProtectionWear sunscreen, especially in summer.
Safety Tips
-
Mountain DrivingUse caution on mountain roads during winter.
-
Emergency KitKeep extra supplies in your vehicle.
-
Hiking SafetyStay on marked trails.
-
WildlifeBe cautious of wildlife on rural roads.
People Also Ask
-
How long is the flight?The flight is approximately 1 hour and 30 minutes.
-
Is it better to drive or fly?Driving is practical and affordable for this distance.
-
Do I need a car?A car is helpful for exploring the surrounding areas.
-
What is the best time to visit?Spring and Fall are ideal.
-
Are there direct flights?Yes, several airlines offer direct service from SeaTac.
Quick Info
- From Lacey, Washington, United States
- To Boise, Idaho, United States
-
Modes
Best Time to Travel
Spring or Fall for pleasant weather.
Things to Do in Boise
1
Boise River Greenbelt
Enjoy this 25-mile path along the river, perfect for walking and biking.
2
Idaho State Capitol
Tour the beautiful capitol building in the heart of downtown.
3
Basque Block
Experience the unique culture and food of the local Basque community.
4
Table Rock
Hike to the top for panoramic views of the city and surrounding valley.
Tags
Lacey to Boise
flights to BOI
driving to Idaho
Washington to Idaho
SeaTac to Boise
travel guide
Boise trip
