Denver / Bus
RTD AB3 live tracking and departures
Boulder / Denver Airport · America/Denver
Selected branch: Denver Airport via 28th St · 11 stops.
AB3 live vehicle tracking
Live predictions available. Fresh vehicle positions only; 0 fresh vehicles matched to this route. The map shows vehicles assigned to the selected stopping pattern. Vehicles on other branches may be omitted.
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Official route geometry · 0 fresh vehicles on selected branch
Positions refresh every 30 seconds. An absent marker does not establish a canceled trip. Predictions and vehicle positions can have different availability.
Next departures from Downtown Boulder Station Gate 2
Denver Airport via 28th StScheduled
6:59 AM6:59 AM · Sat, Oct 24
Denver Airport via 28th StScheduled
7:59 AM7:59 AM · Sat, Oct 24
Denver Airport via 28th StScheduled
4:29 PM4:29 PM · Sat, Oct 24
Denver Airport via 28th StScheduled
5:29 PM5:29 PM · Sat, Oct 24
Denver Airport via 28th StScheduled
6:26 PM6:26 PM · Sat, Oct 24
Live predictions available · Live predictions and published schedule fallbacks are labeled on each departure.
More RTD travel information
From the official RTD schedule
Imported Oct 23, 2026 · 19:08 UTC · Service dates 2026-09-27 through 2027-01-02. See data status
Transit data provided by the Regional Transportation District. This independent site is not endorsed by, sponsored by, or affiliated with RTD. Official source ↗