Can I cross one day before my flight departs? Or it has to be the same day

There is casa de canbio at el.cbx.24hs.avierto

I need to go to Mexico on an emergency boy with my daughter next week but my daughter has a blessed passport if I can go through the bridge?

I can cross without a ticket I have an emergency and I want to buy a ticket at the airport

You can cross the same day of the flight and with your boarding pass printed or digital.

Can I get my boarding pass there?

It has to be the same day

The same day

You cannot cross the day before .. it has to be a few hours before the flight ..

Just a few hours before the flight

You can't just 4-6 hours before the flight

The last time I crossed you had to document when crossing, you could not leave the airport.