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Bus route

AB3 Boulder / Denver Airport

A bus service operated by Regional Transportation District (Denver County)

Timetable
Map

To Denver Airport via 28th St

Downtown Boulder Station Gate 2	06:59	07:59	16:29	17:29	18:26
Canyon Blvd & Mcguckin Wy (<NA>)	07:03	08:03	16:33	17:33	18:30
28th St & Arapahoe Ave (<NA>)	07:07	08:07	16:37	17:37	18:34
28th St & Taft Dr (<NA>)	07:07	08:07	16:37	17:37	18:34
28th St & Colorado Ave (<NA>)	07:08	08:08	16:38	17:38	18:35
US 36 & Table Mesa Station Gate A	07:16	08:16	16:46	17:46	18:43
US 36 & Table Mesa Station Gate A	07:21	08:21	16:51	17:51	18:48
US 36 & McCaslin Station Gate B	07:29	08:29	16:59	17:59	18:56
Via Varra Rd & Midway Blvd (<NA>)	07:34	08:34	17:04	18:04	19:01
US 36 & Flatiron Station Gate A	07:36	08:36	17:06	18:06	19:03
US 36 & Flatiron Station Gate A	07:37	08:37	17:07	18:07	19:04
13600 Block Via Varra (<NA>)	07:38	08:38	17:08	18:08	19:05
Denver Airport Station Gate 6	08:17	09:17	17:47	18:47	19:44

To Dtwn Boulder via 28th St

Denver Airport Station Gate 8	08:50	09:50	18:20	19:20
13500 Block Via Varra (<NA>)	09:21	10:21	18:51	19:51
US 36 & Flatiron Station Gate C	09:22	10:22	18:52	19:52
US 36 & Flatiron Station Gate C	09:23	10:23	18:53	19:53
Via Varra Rd & Midway Blvd (<NA>)	09:23	10:23	18:54	19:54
US 36 & McCaslin Station Gate E	09:30	10:30	19:01	20:01
US 36 & Table Mesa Station Gate E	09:44	10:44	19:16	20:08
28th St & College Ave (<NA>)	09:49	10:49	19:21	20:13
28th St & Sundown La (<NA>)	09:50	10:50	19:22	20:14
28th St & Arapahoe Ave (<NA>)	09:51	10:51	19:23	20:15
Canyon Blvd & 28th St (<NA>)	09:57	10:57	19:28	20:20
Downtown Boulder Station (Ar) (<NA>)	10:02	11:02	19:32	20:24

Timetable data from Regional Transportation District, 18 October 2026

Regional Transportation District (Denver County)

Website: rtd-denver.com