Article Source: CalTrain

Caltrain Youth Tickets Start at $1

Big plans, Small fare.
If you’re 18 or younger, ride Caltrain for just $1 one way or $2 all day, across all zones. Anytime. Any day.
Whether you’re heading to school, meeting friends, catching a game, or exploring the Bay, getting there is easy — and seriously affordable.
Youth Fare Options

$1 One-Way Ticket
$2 Day Pass
$24 Monthly Pass

All youth fares are valid across all Caltrain zones - but youth fares are only for riders 18 and under. Be ready to show proof of age if asked.
How to Buy
You can purchase youth fares:

At Caltrain ticket machines
With a Youth Clipper card for one-way fare and monthly pass
Online or in the app for the $24 Youth Monthly Pass
In person at the Caltrain office in San Carlos

Note: The $2 Day Pass is not available on Clipper. It can be purchased at ticket machines.
Good to Know
One child age 4 and under rides free with one paying adult. All other children must travel with a valid youth fare.
Ready to ride?
From after-school plans to weekend adventures, Caltrain gets you there for less. Ride more. Spend less. Have fun.