Ab2 Bus - Boulder / Denver Airport

A bus service operated by Regional Transportation District

List of stops

Number of stops: 11

Monday to Friday

Denver Airport Station Gate 8 – Boulder Junction at Depot Square Station Gate B5

Denver Airport Station Gate 8	06:45	07:45	08:45	09:45	16:45	17:45	19:15	19:45	21:15
13500 Block Via Varra	07:16	08:16	09:16	10:16	17:16	18:16	19:46	20:16	21:46
US 36 & Flatiron Station Gate C	07:17 07:18	08:17 08:18	09:17 09:18	10:17 10:18	17:17 17:18	18:17 18:18	19:47 19:48	20:17 20:18	21:47 21:48
Via Varra Rd & Midway Blvd	07:19	08:18	09:18	10:19	17:19	18:19	19:49	20:19	21:48
US 36 & Mccaslin Station Gate E	07:26	08:25	09:25	10:26	17:26	18:26	19:56	20:26	21:55
US 36 & Table Mesa Station Gate E	07:34	08:33	09:33	10:34	17:35	18:35	20:10	20:35	22:03
28th St & College Ave	07:40	08:39	09:39	10:40	17:41	18:41	20:14	20:39	22:07
28th St & Sundown La	07:41	08:40	09:40	10:41	17:42	18:42	20:15	20:40	22:08
28th St & Arapahoe Ave	07:42	08:41	09:41	10:42	17:43	18:43	20:16	20:41	22:09
28th St & Canyon Blvd	07:45	08:44	09:44	10:45	17:46	18:46	20:19	20:43	22:11
Boulder Junction at Depot Square Station Gate B5	07:51	08:50	09:50	10:51	17:51	18:51	20:24	20:48	22:16

Boulder Junction at Depot Square Station Gate B5 – Denver Airport Station Gate 6

Boulder Junction at Depot Square Station Gate B5	05:39 05:44	06:37 06:42	07:37 07:42	08:37 08:42	14:07 14:12	15:06 15:11	15:36 15:41	17:06 17:11	18:06 18:11
28th St & Canyon Blvd	05:47	06:45	07:45	08:45	14:16	15:15	15:45	17:15	18:15
28th St & Arapahoe Ave	05:52	06:52	07:52	08:52	14:22	15:22	15:52	17:23	18:23
28th St & Taft Dr	05:52	06:52	07:52	08:52	14:22	15:22	15:52	17:23	18:23
28th St & Colorado Ave	05:53	06:53	07:53	08:53	14:23	15:23	15:53	17:24	18:24
US 36 & Table Mesa Station Gate A	06:00 06:05	07:00 07:05	08:00 08:05	09:00 09:05	—	15:30 15:35	16:00 16:05	17:30 17:35	18:30 18:35
US 36 & Mccaslin Station Gate B	06:11	07:13	08:13	09:13	14:43	15:43	16:13	17:43	18:43
Via Varra Rd & Midway Blvd	06:16	07:18	08:18	09:18	14:48	15:48	16:18	17:48	18:48
US 36 & Flatiron Station Gate A	06:17 06:18	07:20 07:21	08:20 08:21	09:20 09:21	14:50 14:51	15:50 15:51	16:20 16:21	17:50 17:51	18:50 18:51
13600 Block Via Varra	06:18	07:22	08:22	09:22	14:52	15:52	16:22	17:52	18:52
Denver Airport Station Gate 6	06:55	08:01	09:01	10:01	15:31	16:31	17:01	18:31	19:31

Times marked with "—" indicate that the vehicle does not stop at this stop.

Route Path (Streets & Roads)

Outbound: Denver Airport Station Gate 8 – Boulder Junction at Depot Square Station Gate B5

Terminal East (Commercial Vehicles) - Via Varra - Denver–Boulder Turnpike - Via Varra - Denver–Boulder Turnpike - Table Mesa Drive - 28th Street Frontage Road - 28th Street - Junction Place

Inbound: Boulder Junction at Depot Square Station Gate B5 – Denver Airport Station Gate 6

Junction Place - 28th Street - Table Mesa Drive - Center Drive - Via Varra - Denver–Boulder Turnpike - Via Varra - Terminal East (Commercial Vehicles)

Schedules and stops for this route are published in GTFS: rtd-denver-flex

Additional route information: rtd-denver.com

Frequently asked questions about route Ab2

What time does route Ab2 start operating?
Services on route Ab2 start at 06:45 from Monday to Friday.
What time does route Ab2 stop operating?
Services on route Ab2 end at 22:16 from Monday to Friday.
Is there a stop for route Ab2 near me?
View the nearest stop for route Ab2.

Ab2 (Boulder Buses)

The first stop of the Ab2 bus route is Denver Airport Station Gate 8 and the last stop is Boulder Junction at Depot Square Station Gate B5. Ab2 (Boulder / Denver Airport) is operational during on weekdays.

Additional information: Ab2 has 11 stops. The total trip duration for this route is approximately 69 minutes.

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Ab3 - Boulder / Denver Airport

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Last updated on November 11, 2026