What is the best route from Boise to Phoenix?

Answer 1

Boise to Billings is a trip a New Englander would describe as "you can't get there from here." If you ask Google Maps, it will send you through Yellowstone National Park. Admittedly, that's a scenic route but I wouldn't describe it as the "best" way to do anything. For extra humor, ask Google Maps to route you from Boise to Coeur d' Alene. It will send you through the Tri-Cities! No one in his or her right mind would take this route. If I was going to drive from Boise to Billings, I'd take I-84 west to US 95, 95 north to Coeur d' Alene, then I-90 east to Billings. My sister, who used to live in Pocatello, would prefer I-84 east to I-15, I-15 north to I-90 and then I-90 east to Billings. Either one gets you there; my sister's route keeps you on Interstate freeways and doesn't send you up the White Bird and Lewiston grades. An alternate, if you want to avoid I-15 but don't want to pull the Lewiston Hill, is US 95 to Lewiston, then up the Kendrick Grade and to St. Maries. From there you can do one of three things: go to I-90 through Harrison, go to I-90 through Rose Lake (what I would normally recommend) or, in the summer, go up the St. Joe River Road to I-90. Do NOT, whatever you do, go that far up the Joe in the winter. Whichever way you go, you're still going to have to pull the White Bird Hill, but the White Bird Hill is nowhere near as much fun as it used to be. (That means they've cut the number of fatalities WAY down...)

Answer 2

The driving distance from Billings, Montana to Boise, Idaho is 620 miles via I-84 W per MapQuest. The driving time per MapQuest is 9 hours and 6 minutes.

Answer 3

1. Take I-84 EAST to U.S. 93 to TWIN FALLS and WELLS, NEV at EXIT 173.
2. Turn right off the exit ramp onto U.S. 93 SOUTH to TWIN FALLS and WELLS.
3. Take U.S. 93 SOUTH to U.S. 60 EAST in Wickenburg, AZ. You will be driving through Las Vegas, Nevada.
4. Take U.S. 60 EAST and follow signs TO I-17 via AZ-74.
5. Once, you reach JCT I-17, take I-17 SOUTH towards PHOENIX.
6. Take I-17 SOUTH to Phoenix.