Sierra Vista to Hermosillo, Mexico Road Trip: Route & Stops

By admin, 30 September, 2026

The Wayro route from Sierra Vista to Hermosillo is 235 miles (379 km), about 4 h 33 min of driving without stops. The U.S.–Mexico border is at about mile 63 on this route, near the Nogales port of entry.

U.S. State Department travel advisory: Sonora — Level 3, Reconsider TravelAdvisory issued May 29, 2026; checked September 29, 2026. Sonora is the Mexican state that contains Hermosillo. Check the full advisory for this state before you go.
Patagonia Lake State ParkU.S.–Mexico borderSierra VistaHermosillo
Route from Sierra Vista to Hermosillo with the 1 stops listed below (blue dots) and the approximate U.S.–Mexico border crossing (red square).
Distance235 mi (379 km)
Driving time, no stops4 h 33 min
Main roads, in orderAZ 90 → AZ 82 → MEX-15 → MEX-15D
Border crossingabout mile 63 of this route, Arizona → Sonora (near the Nogales, AZ port of entry)
Mexican states on the routeSonora (Level 3)
Toll roadsMEX-15D
Fuel estimate (car at 25 mpg)about 9.4 gal; actual use varies by vehicle and traffic
Stops listed below1

Crossing into Mexico: what you need for Hermosillo

PassportPassport book or passport card to enter Mexico by land
FMM entry permitRequired for this trip: Hermosillo is well beyond the 12-mile (20 km) border zone where the permit is not needed
Temporary vehicle import permit (TIP)Not needed: Hermosillo is inside Sonora's free zone (west of Highway 15 as far south as Empalme, plus a strip along the border that includes Cananea). Going farther south or east of Highway 15 requires a permit
Mexican auto insuranceRequired for all vehicles: buy a Mexican policy before you cross

Sources: U.S. State Department, Mexico travel information (updated August 11, 2026); permits are issued by Banjercito. Sonora free zone: Explore Sonora.

Crossing at Nogales

Nogales, Arizona, and Nogales, Sonora, share several crossings: DeConcini downtown is the main gateway for visitors and daily crossers, Morley Gate nearby serves pedestrians, and Mariposa on the west side handles commercial trucks. The city is also home to Arizona's only rail crossing.

Sources: [1] [2]

What the drive from Sierra Vista to Hermosillo is like

MEX-15D (113 mi) and MEX-15 (51 mi) carry about 70% of the 235 miles. The U.S. part of the drive runs through Arizona for about 63 miles; after the border at Nogales you have about 172 miles left in Mexico. The Mexican leg uses MEX-15D, a toll highway (cuota). None of the 1 stops below is right on the road, so plan each as a short side trip.

The route from Sierra Vista to Hermosillo, road by road

RoadRoute miles (from–to)Length, miState
local roads0–22Arizona
AZ 902–119Arizona
AZ 8211–6049Arizona
connecting roads60–622Arizona
MEX-1562–11351Arizona, Sonora
MEX-15D113–226113Sonora
local roads226–2359Sonora
  • Mile 63 of this route: Arizona → Sonora (international border)

Stops between Sierra Vista and Hermosillo

Patagonia Lake State Park

Mile 47 · State park · 2 mi from the route · side trip; actual detour depends on access roads

Tucked into the rolling hills of southeastern Arizona, this lake park draws visitors for fishing, water skiing, camping and a creek trail where birders watch for herons, vermilion flycatchers and hummingbirds.

When you get to Hermosillo

Hermosillo, the capital of Sonora, spreads across the Sonoran Desert on Federal Highway 15. The rocky Cerro de la Campana rises right beside downtown, and stone quarried from it built the 1908 state penitentiary that now holds the regional history museum. The cathedral and Plaza Zaragoza anchor the old center, a short walk from the Government Palace.

  • Museo Regional de Sonora: INAH runs this museum inside the old state penitentiary, built of Cerro de la Campana stone in 1908 and used as a prison until 1979. source
  • Cerro de la Campana: The city's landmark hill gives a panoramic view over Hermosillo, and its phonolite rocks ring like a bell when struck, which gave it its name. source
  • Catedral de la Asunción: Dedicated to the Virgin of the Assumption, the cathedral on Plaza Zaragoza blends Baroque and neo-Gothic elements in an eclectic facade. source

Hermosillo Cathedral

Cathedral · in Hermosillo

Consecrated in 1908, the Cathedral of Our Lady of the Assumption pairs an eclectic facade of Baroque and neo-Gothic elements with a neoclassical interior; its dome was finished in 1963. A small 18th-century chapel once stood here.

More drives to Hermosillo

From Sierra Vista to other places in Mexico

All routes to Hermosillo, border crossings and permits in one place: Driving to Hermosillo, Mexico from the U.S.

Frequently asked questions

How long is the drive from Sierra Vista to Hermosillo?

About 4 h 33 min of driving without stops, over 235 miles.

How far is Hermosillo from Sierra Vista by car?

About 235 miles (379 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.

Where does the Sierra Vista to Hermosillo drive cross into Mexico?

At about mile 63 of this route, from Arizona into Sonora, near the Nogales port of entry.

Do I need a permit to drive my car from Sierra Vista to Hermosillo?

No vehicle permit is needed. Hermosillo is inside Sonora's free zone (west of Highway 15 as far south as Empalme, plus a strip along the border that includes Cananea). Going farther south or east of Highway 15 requires a permit. You also need Mexican auto insurance and a passport book or card. An FMM entry permit is required too.

Is it safe to drive from Sierra Vista to Hermosillo?

The U.S. State Department rates Sonora Level 3: Reconsider Travel (advisory issued May 29, 2026). Read the full advisory before you go.

What roads does the drive from Sierra Vista to Hermosillo use?

In order: AZ 90, AZ 82, MEX-15 and MEX-15D. The road-by-road table above shows the route miles and states for each one.

What are good stops between Sierra Vista and Hermosillo?

Closest to the road: Patagonia Lake State Park (state park, mile 47, 2 mi from the route). All stops are described above.

How we put this guide together

Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway mile markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route (roughly 2 to 7 miles depending on the type, farther for World Heritage sites): at least one strong stop for each stretch of the drive, then the best-known places nearest the road, with no more than five of one type, up to nine in all. Places that are closed, private or not open to visitors are removed. Place and city descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on September 29, 2026. Conditions change, so check the linked sources before you travel.

Route data © OpenStreetMap contributors.