The US side of Nogales is generally safe for travelers.

How long is the drive?

The drive takes about 5 hours and 30 minutes.

No, there are no toll roads on this route.

Can I walk across the border?

Yes, there is a pedestrian crossing in downtown Nogales.

Yes, it is the only interstate in the US with kilometer-based signage.

Petrified Forest

Nogales

Driving

Petrified Forest to Nogales

Updated: 28 May 2026

The journey from Petrified Forest to Nogales covers 520 kilometers. You will travel south through the state, connecting to Interstate 10 East and eventually merging onto Interstate 19 South in Tucson. This highway leads directly to the international border at Nogales. The total drive time is approximately 5 hours and 30 minutes. You will traverse diverse landscapes, from the high desert of the north to the rolling grasslands of the south.

Total Distance: 520 km driving, 420 km air distance.

Fastest Way

Driving via I-19 is the fastest, taking 5 hours and 30 minutes.

Cheapest Way

Driving is the only practical mode, costing roughly 85 dollars in fuel.

Compare Petrified Forest to Nogales Routes

Driving

Direct

Duration

5 hours 45 mins

Avg Price

80-90 USD

Operator

Personal Vehicle

Route

AZ-87 S to I-10 E to I-19 S.

I-19 is unique for using kilometer-based exit markers instead of miles.

Travel Tips

I-19 Markers
Note that exit signs on I-19 are in kilometers, which can be confusing for first-time visitors.
Border Crossing
If you plan to cross into Mexico, ensure you have your passport and vehicle insurance documents.
Tucson Bypass
Use the I-10 bypass if traffic is heavy in downtown Tucson.
Fueling
Fill up in Green Valley before the final stretch to Nogales.
Sun Protection
The sun is intense in Southern Arizona; use high-SPF sunscreen even while driving.

Safety Tips

Border Patrol
Be prepared to stop at immigration checkpoints on the highway heading north.
Speeding
Strictly follow speed limits on I-19, as it is heavily monitored by law enforcement.
Vehicle Security
Do not leave valuables in your car when parked in public areas near the border.
Emergency Prep
Carry a physical map, as cell service can be spotty in the rural stretches of the borderlands.