Cars in lanes approaching the US-bound border crossing returning from Mexico

The drive into Mexico is quick; coming home is where the patience comes in. Here is how to make the northbound return crossing as smooth as possible.

Quick answer: Northbound is the slow direction – have your passport ready, know what you can bring back (declare any purchases), check live wait times, and use Ready Lanes or SENTRI to cut the line. Cross midday or late evening to avoid the worst waits.

Have your documents ready

Every person in the vehicle needs a passport, passport card, or other approved document to re-enter the US. Have them out and ready as you approach the booth – a passport card also lets you use the faster Ready Lanes.

What you can bring back

You will pass through US Customs. Be honest and declare any purchases. A few things to keep in mind:

Beat the wait

Northbound waits at San Ysidro can run one to three hours at peak times. Check live wait times before you head back, consider a different crossing like Otay Mesa or Tecate, and aim for off-peak hours. If you cross often, SENTRI is the fastest way through.

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Frequently asked questions

What do I need to cross back into the US from Mexico?

A passport, passport card, or other approved travel document for every person in the vehicle. Have them ready at the booth; a passport card also enables the faster Ready Lanes.

What can I bring back from Mexico by car?

Declare any purchases – there is a personal exemption and possible duty above it. Alcohol has limits, and produce, plants, and certain foods are restricted or prohibited. Keep medications in original packaging.

How long is the wait coming back into the US?

Northbound waits at San Ysidro commonly run one to three hours at peak times. Check live CBP wait times, consider another crossing, travel off-peak, or use SENTRI.