| Oakland Airport | Island Dr. & Mecartney Rd. | Park St. & Otis Dr. | Santa Clara Ave. and Park St. | Fruitvale BART | Fruitvale Ave. & MacArthur Blvd. | ||||
| 21 | 718a | 725a | 736a | 739a | 749a | 759a | |||
| 21 | 748a | 755a | 806a | 809a | 819a | 829a | |||
| 21 | 818a | 825a | 836a | 839a | 849a | 859a | |||
| 21 | 848a | 855a | 906a | 909a | 920a | 930a | |||
| 21 | 917a | 924a | 936a | 939a | 950a | 1000a | |||
| 21 | 947a | 954a | 1006a | 1010a | 1021a | 1033a | |||
| 21 | 1024a | 1031a | 1043a | 1047a | 1058a | 1110a | |||
| 21 | 1054a | 1101a | 1113a | 1117a | 1128a | 1140a | |||
| 21 | 1124a | 1131a | 1143a | 1147a | 1158a | 1210p | |||
| 21 | 1157a | 1204p | 1216p | 1220p | 1231p | 1243p | |||
| 21 | 1219p | 1226p | 1238p | 1243p | 1255p | 107p | |||
| 21 | 1249p | 1256p | 108p | 113p | 125p | 137p | |||
| 21 | 124p | 131p | 143p | 148p | 200p | 212p | |||
| 21 | 154p | 201p | 213p | 218p | 230p | 242p | |||
| 21 | 226p | 233p | 245p | 250p | 302p | 314p | |||
| 21 | 256p | 303p | 315p | 320p | 332p | 344p | |||
| 21 | 326p | 333p | 345p | 350p | 402p | 414p | |||
| 21 | 356p | 403p | 415p | 420p | 432p | 444p | |||
| 21 | 426p | 433p | 445p | 450p | 502p | 514p | |||
| 21 | 456p | 503p | 515p | 519p | 531p | 543p | |||
| 21 | 526p | 533p | 545p | 549p | 601p | 613p | |||
| 21 | 556p | 603p | 615p | 619p | 631p | 643p | |||
| 21 | 628p | 635p | 645p | 649p | 701p | 713p | |||
| 21 | 658p | 705p | 715p | 719p | 730p | 741p | |||
| 21 | 728p | 735p | 745p | 749p | 800p | 811p | |||
| 21 | 758p | 805p | 815p | 819p | 830p | 841p | |||
| 21 | 828p | 835p | 845p | 849p | 859p | 909p | |||
| 21 | 858p | 905p | 915p | 919p | 929p | 939p | |||
| 21 | 928p | 935p | 945p | 949p | 959p | 1009p | |||