Bus Ab3 - Boulder / Denver Airport: Full Schedule in Boulder

A bus service operated by Regional Transportation District

Click to load interactive map

List of stops

Number of stops: 15

Saturdays

Downtown Boulder Station Gate 2 – Denver Airport Station Gate 6

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

Denver Airport Station Gate 8 – Downtown Boulder Station (Ar)

Denver Airport Station Gate 8	08:50	09:50	18:20	19:20
13500 Block Via Varra	09:21	10:21	18:51	19:51
US 36 & Flatiron Station Gate A	09:22 09:23	10:22 10:23	18:52 18:53	19:52 19:53
Via Varra Rd & Midway Blvd	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	09:49	10:49	19:21	20:13
28th St & Sundown La	09:50	10:50	19:22	20:14
28th St & Arapahoe Ave	09:51	10:51	19:23	20:15
Canyon Blvd & 28th St	09:57	10:57	19:28	20:20
Downtown Boulder Station (Ar)	10:02	11:02	19:32	20:24

Route Path (Streets & Roads)

Outbound: Downtown Boulder Station Gate 2 – Denver Airport Station Gate 6

14th Street - Canyon Boulevard - 28th Street - Table Mesa Drive - Center Drive - Via Varra - Denver–Boulder Turnpike - Via Varra - Terminal East Departures

Inbound: Denver Airport Station Gate 8 – Downtown Boulder Station (Ar)

Terminal East Departures - Via Varra - Denver–Boulder Turnpike - Via Varra - Denver–Boulder Turnpike - Table Mesa Drive - 28th Street Frontage Road - 28th Street - Canyon Boulevard - Walnut Street

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

Bus Ab3 FAQ

What time does the Ab3 bus start operating?

Services on the Ab3 - Boulder / Denver Airport bus start at 06:59 on Saturday.
What time does the Ab3 bus stop working?

Services on the Ab3 - Boulder / Denver Airport bus stop at 19:44 on Saturday.
Is there a Ab3 bus stop near me?

Click here to view the nearest Ab3 - Boulder / Denver Airport bus stop.

Ab3 (Boulder Buses)

The first stop of the Ab3 bus route is Downtown Boulder Station Gate 2 and the last stop is Denver Airport Station Gate 6. Ab3 (Boulder / Denver Airport) is operational during everyday.

Additional information: Ab3 has 11 stops. The total trip duration for this route is approximately 78 minutes.

More than 5 million users trust busmaps.com for public transport information. Find suggested Buses routes in Boulder, real-time vehicle tracking, route maps, nearby stops, and offline PDF schedules.

Ab3 bus near me

Similar Routes & Alternatives to Ab3

Looking for alternatives to Ab3? Discover top-rated routes that share similar paths and stops. Compare schedules and find a backup route for your journey.

Ab2 - Boulder / Denver Airport

90%

Last updated on August 8, 2026