logo

Banner

Bus in motion

* Opens Google Maps in a new tab

Bus Routes w/alerts See All Alerts
background background mbbile
Routes and Schedules button

Routes & Schedules

Find all the information, maps and schedules for our fixed route service.

Fares and Passes button

Fares & Passes

Exact fare not required on fixed route buses. Farebox on fixed route buses can issue credit tickets for overpayment.

Apps and Tools for Riding button

Apps & Tools for Riding

There’s an app for that! Tri Delta Transit recommends several mobile apps for ease of travel and a great rider experience.

Our Services

Apps and Tools for Riding button

Fixed Routes arrow

Fixed Routesarrow

Exact fare recommended, but not required, on fixed route buses. Farebox on fixed route buses can issue credit tickets for overpayment.
Apps and Tools for Riding button

Tri MyRide arrow

Tri MyRidearrow

Tri MyRide is an on-demand, corner-to-corner, shared shuttle service. Take trips that start and end anywhere within the service area. Get started by downloading the app available on Apple and Andriod.
Apps and Tools for Riding button

Senior Paratransit arrow

Senior Paratransitarrow

If you are 65 years of age or older, and unable to ride a fixed route bus, you are eligible for Tri Delta Transit’s Senior (Age 65+) paratransit transportation.
Apps and Tools for Riding button

ADA Paratransit arrow

ADA Paratransitarrow

Eligibility is determined on a case-by-case basis in accordance with the Americans with Disabilities Act (ADA).

Find out what's new at Tri Delta Transit

News

Keolis Expands with New Contract in Contra Costa County May 29, 2026

Keolis Expands North American Footprint in California with New Contract to Partner with Tri Delta Transit in Contra Costa County With this New Contract, Keolis will Operate Five Transit Contracts…
Youth Ride Free Returns for Summer 2026 May 05, 2026

Contra Costa County, CA — Following a highly successful youth program last summer, County Connection, Tri Delta Transit, and WestCAT will continue the Youth Ride Freeprogram, offering fare-free rides on…
All News

Board Meetings

Jul 22
Board Meeting

4pm

All Meetings

Events

Jul 14
Tri Delta Transit Town Hall Meeting regarding August 9th Schedule change.

10am

All Events

We are Hiring!

Be on the road to a great new career today! Click here for our current available positions.

Job Opportunities! arrow

Sign up for Alerts!

Get notified about schedule changes, detours, procurements, job opportunities, events, and more.

Sign Up arrow
procurement

Procurement arrow

ECCTA allows for bid/proposal submission through BidExpress. Vendors must register with BidExpress before participating. Registration for ECCTA solicitations is free.
Tri Delta T shirts pants mugs and hats available in the store

www.trideltatransitstore.com arrow

Tri Delta Transit loves our riders and the communities we serve. Visit our store to purchase Tri Delta Transit and community gear. It’s fun.
person using a laptop and cell phone

Contact Us arrow

We love to hear from our customers.
Please give us a call or email us and let us know how we are doing.

Follow Us on Social Media!

Today was a GREAT day! 🥳🚍✨ We officially kicked off our new partnership with @keolisna . Together, we’re excited to keep our community moving with the safe and reliable service you count on everyday. #trideltatransit #keolis #bayareatransit

12 2
Open
Today was a GREAT day! 🥳🚍✨ We officially kicked off our new partnership with @keolisna . Together, we’re excited to keep our community moving with the safe and reliable service you count on everyday. #trideltatransit #keolis #bayareatransit

Today was a GREAT day! 🥳🚍✨ We officially kicked off our new partnership with @keolisna . Together, we’re excited to keep our community moving with the safe and reliable service you count on everyday. #trideltatransit #keolis #bayareatransit ...

TRI DELTA TRANSIT TAKES YOU PLACES! 🚍
Food Truck Thursdays! 🚚🥤🍴
Come out & join the community for Food Truck Thursdays which is a kid, family, and pet-friendly community event with FREE admission. In addition to all of the delicious food music & more!
Take route 375 🚌 Toward Slatten Ranch Cir & Walk 4 mins To Destination!
Date: 📆 7/2/2026-12/11/26
Time:⏰5PM- 8:00PM
Location: 📍
4703 Lone Tree Way, Antioch CA 94531

0 0
Open
TRI DELTA TRANSIT TAKES YOU PLACES! 🚍 Food Truck Thursdays! 🚚🥤🍴 Come out & join the community for Food Truck Thursdays which is a kid, family, and pet-friendly community event with FREE admission. In addition to all of the delicious food music & more! Take route 375 🚌 Toward Slatten Ranch Cir & Walk 4 mins To Destination! Date: 📆 7/2/2026-12/11/26 Time:⏰5PM- 8:00PM Location: 📍 4703 Lone Tree Way, Antioch CA 94531

TRI DELTA TRANSIT TAKES YOU PLACES! 🚍
Food Truck Thursdays! 🚚🥤🍴
Come out & join the community for Food Truck Thursdays which is a kid, family, and pet-friendly community event with FREE admission. In addition to all of the delicious food music & more!
Take route 375 🚌 Toward Slatten Ranch Cir & Walk 4 mins To Destination!
Date: 📆 7/2/2026-12/11/26
Time:⏰5PM- 8:00PM
Location: 📍
4703 Lone Tree Way, Antioch CA 94531 ...

So much fun being at Los Medanos College Pittsburg for the Free for All LMC student event. We are telling students about the August 9th schedule change, Youth Ride Free and more. Hi to Alena who has been a rider for years.

5 0
Open
So much fun being at Los Medanos College Pittsburg for the Free for All LMC student event. We are telling students about the August 9th schedule change, Youth Ride Free and more. Hi to Alena who has been a rider for years.

So much fun being at Los Medanos College Pittsburg for the Free for All LMC student event. We are telling students about the August 9th schedule change, Youth Ride Free and more. Hi to Alena who has been a rider for years. ...

Tri Delta Transit is going to LMC!

The LMC Student Life program is hosting "Free for All" event on Wedn., July 1st from 12PM-3PM outside of the LMC Marketplace. FREE will be thrifted clothes, resources, food, prizes and more. LMC staff, students and community are invited.

1 0
Open
Tri Delta Transit is going to LMC! The LMC Student Life program is hosting "Free for All" event on Wedn., July 1st from 12PM-3PM outside of the LMC Marketplace. FREE will be thrifted clothes, resources, food, prizes and more. LMC staff, students and community are invited.

Tri Delta Transit is going to LMC!

The LMC Student Life program is hosting "Free for All" event on Wedn., July 1st from 12PM-3PM outside of the LMC Marketplace. FREE will be thrifted clothes, resources, food, prizes and more. LMC staff, students and community are invited. ...