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621

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Alameda-Contra Costa Transit District (AC Transit) 621 first and last departure times

American High - Thornton Middle · US/Pacific

Selected branch: Ardenwood Blvd. & Commerce Dr. · 19 stops. Service day: Monday, October 26, 2026.

Mon, Oct 262 published tripsTue, Oct 272 published tripsWed, Oct 282 published tripsThu, Oct 292 published tripsFri, Oct 302 published tripsSat, Oct 310 published tripsSun, Nov 10 published trips

First and last published boarding times

Monday, October 26, 2026 · Ardenwood Blvd. & Commerce Dr.. These are supplied times for this branch. Stops or trips with omitted times cannot establish complete first/last bounds. Drop-off-only visits are excluded. A frequency window’s end is labeled separately and is not an exact last departure.

Boarding stopFirst departureLast departure / window endService notes
Thornton Av & Dusterberry Way (Thornton Jr High)Visit 1 · 13332:34 PM2:35 PM2 scheduled departures
Fremont Blvd & Thornton AvVisit 2 · 11032:35 PM2:36 PM2 scheduled departures
Fremont Blvd & Alder Av (American Sr High School)Visit 3 · 10432:37 PM2:38 PM2 scheduled departures
Fremont Blvd & Nicolet AvVisit 4 · 10862:39 PM2:40 PM2 scheduled departures
Fremont Blvd & Tamayo StVisit 5 · 11012:39 PM2:40 PM2 scheduled departures
Decoto Rd & Fremont BlvdVisit 6 · 10232:42 PM2:43 PM2 scheduled departures
Decoto Rd & Brookmill DrVisit 7 · 14122:42 PM2:43 PM2 scheduled departures
Paseo Padre Pkwy & Warwick RdVisit 8 · 12932:44 PM2:45 PM2 scheduled departures
Paseo Padre Pkwy & Darwin DrVisit 9 · 12442:44 PM2:45 PM2 scheduled departures
Paseo Padre Pkwy & Whitehead LnVisit 10 · 12952:45 PM2:46 PM2 scheduled departures
Paseo Padre Pkwy & Langhorn DrVisit 11 · 12542:46 PM2:47 PM2 scheduled departures
Paseo Padre Pkwy & Milton StVisit 12 · 12552:47 PM2:48 PM2 scheduled departures
Paseo Padre Pkwy & Fremont BlvdVisit 13 · 12512:48 PM2:49 PM2 scheduled departures
Paseo Padre Pkwy & Blackstone WayVisit 14 · 12342:48 PM2:49 PM2 scheduled departures
Paseo Padre Pkwy & Siward DrVisit 15 · 12822:50 PM2:51 PM2 scheduled departures
Paseo Padre Pkwy & Deep Creek RdVisit 16 · 12462:51 PM2:52 PM2 scheduled departures
Paseo Padre Pkwy & Half Hitch StVisit 17 · 59442:53 PM2:54 PM2 scheduled departures
Ardenwood Blvd & Tan Oak DrVisit 18 · 9962:54 PM2:55 PM2 scheduled departures

Times after midnight belong to the service date above. These route limits do not establish the last viable connecting journey. Check connection times separately, or use a reviewed airport guide for a direct airport journey.

First and last times on other branches

All other published stopping patterns for the same service date. Open a branch to compare its stop-by-stop boarding limits.

Ardenwood Blvd. & Commerce Dr. · 17 stops · Pattern e2d83a861b8baa1786441603
Boarding stop / visitFirstLast departure / window end
Fremont Blvd & Alder Av (American Sr High School)Visit 1 · 10433:40 PM3:41 PM
Fremont Blvd & Nicolet AvVisit 2 · 10863:42 PM3:43 PM
Fremont Blvd & Tamayo StVisit 3 · 11013:42 PM3:43 PM
Decoto Rd & Fremont BlvdVisit 4 · 10233:45 PM3:46 PM
Decoto Rd & Brookmill DrVisit 5 · 14123:45 PM3:46 PM
Paseo Padre Pkwy & Warwick RdVisit 6 · 12933:47 PM3:48 PM
Paseo Padre Pkwy & Darwin DrVisit 7 · 12443:47 PM3:48 PM
Paseo Padre Pkwy & Whitehead LnVisit 8 · 12953:48 PM3:49 PM
Paseo Padre Pkwy & Langhorn DrVisit 9 · 12543:49 PM3:50 PM
Paseo Padre Pkwy & Milton StVisit 10 · 12553:50 PM3:51 PM
Paseo Padre Pkwy & Fremont BlvdVisit 11 · 12513:51 PM3:52 PM
Paseo Padre Pkwy & Blackstone WayVisit 12 · 12343:51 PM3:52 PM
Paseo Padre Pkwy & Siward DrVisit 13 · 12823:53 PM3:54 PM
Paseo Padre Pkwy & Deep Creek RdVisit 14 · 12463:54 PM3:55 PM
Paseo Padre Pkwy & Half Hitch StVisit 15 · 59443:56 PM3:57 PM
Ardenwood Blvd & Tan Oak DrVisit 16 · 9963:57 PM3:58 PM
Thornton Middle School · 18 stops · Pattern 1315ff10c9c82e9117c17d06
Boarding stop / visitFirstLast departure / window end
Ardenwood Blvd & Commerce DrVisit 1 · 14067:17 AM7:17 AM
Ardenwood Blvd & Tan Oak DrVisit 2 · 9977:17 AM7:17 AM
Paseo Padre Pkwy & Tupelo StVisit 3 · 12877:18 AM7:18 AM
Paseo Padre Pkwy & Deep Creek RdVisit 4 · 12457:20 AM7:20 AM
Paseo Padre Pkwy & Siward DrVisit 5 · 12837:21 AM7:21 AM
Paseo Padre Pkwy & Blackstone WayVisit 6 · 12357:22 AM7:22 AM
Paseo Padre Pkwy & Fremont BlvdVisit 7 · 12507:23 AM7:23 AM
Paseo Padre Pkwy & Bowling Green CommonVisit 8 · 12367:23 AM7:23 AM
Paseo Padre Pkwy & Chaucer DrVisit 9 · 12387:27 AM7:27 AM
Paseo Padre Pkwy & Darwin DrVisit 10 · 12437:28 AM7:28 AM
Paseo Padre Pkwy & Warwick RdVisit 11 · 12927:29 AM7:29 AM
Decoto Rd & Paseo Padre PkwyVisit 12 · 63207:30 AM7:30 AM
Fremont Blvd & Decoto RdVisit 13 · 10597:35 AM7:35 AM
Fremont Blvd & Tamayo StVisit 14 · 11007:37 AM7:37 AM
Fremont Blvd & Nicolet AvVisit 15 · 10857:39 AM7:39 AM
Fremont Blvd & Gibraltar DrVisit 16 · 10717:40 AM7:40 AM
Fremont Blvd & Alder Av (American Sr High School)Visit 17 · 10447:42 AM7:42 AM
American High School · 17 stops · Pattern f55fdca4799ccedd2ec10e6e
Boarding stop / visitFirstLast departure / window end
Ardenwood Blvd & Commerce DrVisit 1 · 14067:42 AM7:42 AM
Ardenwood Blvd & Tan Oak DrVisit 2 · 9977:42 AM7:42 AM
Paseo Padre Pkwy & Tupelo StVisit 3 · 12877:43 AM7:43 AM
Paseo Padre Pkwy & Deep Creek RdVisit 4 · 12457:45 AM7:45 AM
Paseo Padre Pkwy & Siward DrVisit 5 · 12837:46 AM7:46 AM
Paseo Padre Pkwy & Blackstone WayVisit 6 · 12357:47 AM7:47 AM
Paseo Padre Pkwy & Fremont BlvdVisit 7 · 12507:48 AM7:48 AM
Paseo Padre Pkwy & Bowling Green CommonVisit 8 · 12367:48 AM7:48 AM
Paseo Padre Pkwy & Chaucer DrVisit 9 · 12387:52 AM7:52 AM
Paseo Padre Pkwy & Darwin DrVisit 10 · 12437:53 AM7:53 AM
Paseo Padre Pkwy & Warwick RdVisit 11 · 12927:54 AM7:54 AM
Decoto Rd & Paseo Padre PkwyVisit 12 · 63207:55 AM7:55 AM
Fremont Blvd & Decoto RdVisit 13 · 10598:00 AM8:00 AM
Fremont Blvd & Tamayo StVisit 14 · 11008:03 AM8:03 AM
Fremont Blvd & Nicolet AvVisit 15 · 10858:06 AM8:06 AM
Fremont Blvd & Gibraltar DrVisit 16 · 10718:08 AM8:08 AM

More Alameda-Contra Costa Transit District (AC Transit) travel information

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Published Alameda-Contra Costa Transit District (AC Transit) schedule

Imported Oct 24, 2026 · 04:36 UTC · Service dates 2026-08-09 through 2027-04-03. See data status

Schedule data published by Alameda-Contra Costa Transit District (AC Transit). Feed discovery and cached source archives from MobilityData. Source details ↗