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  6. Ab1 Route

Ab1 Bus - Boulder / Denver Airport

A bus service operated by Regional Transportation District
List of stops
      Number of stops: 15

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

      Denver Airport Station Gate 8

      		04:4506:1507:1508:1509:1510:1510:4511:1511:4512:4513:1513:4514:4515:4517:1518:1518:4520:1521:4522:4523:4500:45 +1

      13500 Block Via Varra

      		05:1606:4607:4608:4609:4610:4611:1611:4612:1613:1613:4614:1615:1616:1617:4618:4619:1620:4622:1623:1600:16 +101:16 +1

      US 36 & Flatiron Station Gate C

      		05:17
      05:18      		06:47
      06:48      		07:47
      07:48      		08:47
      08:48      		09:47
      09:48      		10:47
      10:48      		11:17
      11:18      		11:47
      11:48      		12:17
      12:18      		13:17
      13:18      		13:47
      13:48      		14:17
      14:18      		15:17
      15:18      		16:17
      16:18      		17:47
      17:48      		18:47
      18:48      		19:17
      19:18      		20:47
      20:48      		22:17
      22:18      		23:17
      23:18      		00:17 +1
      00:18 +1      		01:17 +1
      01:18 +1

      Via Varra Rd & Midway Blvd

      		05:1806:4907:4908:4909:4910:4811:1811:4812:1813:1813:4814:1815:1816:1817:4918:4919:1920:4922:1823:1800:18 +101:18 +1

      US 36 & Mccaslin Station Gate E

      		05:2506:5607:5608:5609:5610:5511:2511:5512:2513:2513:5514:2515:2516:2517:5618:5619:2620:5622:2523:2500:25 +101:25 +1

      US 36 & Table Mesa Station Gate E

      		05:3307:0408:0409:0410:0411:0311:3312:0312:3313:3314:0314:3315:3416:3418:0519:0519:3521:0522:3323:3300:33 +101:33 +1

      Table Mesa Dr & Tantra Dr

      		05:3407:0508:0509:0510:0511:0411:3412:0412:3413:3414:0414:3415:3516:3518:0619:0619:3621:0622:3423:3400:34 +101:34 +1

      S Broadway & Table Mesa Dr

      		05:3507:0708:0709:0710:0711:0511:3512:0512:3513:3514:0514:3515:3616:3618:0719:0819:3821:0822:3523:3500:35 +101:35 +1

      Broadway & Dartmouth Pnr

      		05:3707:0808:0809:0810:0811:0711:3712:0712:3713:3714:0714:3715:3816:3818:0919:0919:3921:0922:3723:3700:37 +101:37 +1

      27th Way & Broadway Pnr

      		05:3907:1108:1109:1110:1111:0911:3912:0912:3913:3914:0914:3915:4016:4018:1119:1219:4221:1222:3923:3900:39 +101:39 +1

      Broadway & Baseline Rd

      		05:3907:1108:1109:1110:1111:1011:4012:1012:4013:4014:1014:4015:4116:4118:1219:1219:4221:1222:3923:3900:39 +101:39 +1

      Broadway & Euclid Ave

      		05:4207:1508:1509:1510:1511:1411:4412:1412:4413:4414:1414:4415:4516:4518:1619:1619:4621:1622:4323:4300:43 +101:43 +1

      Broadway & Pleasant St

      		05:4307:1608:1609:1610:1611:1511:4512:1512:4513:4514:1514:4515:4616:4618:1719:1719:4721:1722:4423:4400:44 +101:44 +1

      Broadway & University Ave

      		05:4407:1708:1709:1710:1711:1611:4612:1612:4613:4614:1614:4615:4716:4718:1819:1819:4821:1822:4523:4500:45 +101:45 +1

      Downtown Boulder Station (Ar)

      		05:4807:2108:2109:2110:2111:2111:5112:2112:5113:5114:2114:5115:5216:5218:2319:2219:5221:2222:4923:4900:49 +101:49 +1
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.

      Downtown Boulder Station Gate 2 – Denver Airport Station Gate 6

      Downtown Boulder Station Gate 202:5704:27—05:1206:0707:0708:0709:0709:3710:3711:0711:3712:3713:3714:3716:0716:3717:3719:0920:0921:0922:0923:09
      Broadway & University Ave03:0204:32—05:1706:1407:1408:1409:1309:4310:4311:1311:4312:4313:4314:4316:1316:4317:4319:1520:1521:1522:1523:15
      Broadway & College Ave03:0304:33—05:1806:1607:1608:1609:1509:4510:4511:1511:4512:4513:4514:4516:1516:4517:4519:1620:1621:1622:1623:16
      Broadway & Euclid Ave03:0604:36—05:2106:1907:1908:1909:1809:4810:4811:1811:4812:4813:4814:4816:1816:4817:4819:1920:1921:1922:1923:19
      Broadway & Baseline Rd03:0804:38—05:2306:2107:2108:2109:2009:5010:5011:2011:5012:5013:5014:5016:2116:5117:5119:2120:2121:2122:2123:21
      Broadway & 27th Way03:0904:39—05:2406:2207:2208:2209:2209:5210:5211:2211:5212:5213:5214:5216:2316:5317:5319:2320:2321:2322:2323:23
      S Broadway & Dartmouth Ave03:1004:40—05:2506:2407:2408:2409:2409:5410:5411:2411:5412:5413:5414:5416:2516:5517:5519:2520:2421:2422:2423:24
      Table Mesa Dr & 39th St03:1204:42—05:2706:2607:2608:2609:2609:5610:5611:2611:5612:5613:5614:5616:2716:5717:5719:2720:2621:2622:2623:26
      Table Mesa Dr & Tantra Dr03:1304:43—05:2806:2807:2808:2809:2809:5810:5811:2811:5812:5813:5814:5816:2816:5817:5819:2820:2721:2722:2723:27
      US 36 & Table Mesa Station Gate A03:15
      03:20      		04:45
      04:50      		05:01
      05:06      		05:30
      05:35      		06:30
      06:35      		07:30
      07:35      		08:30
      08:35      		09:30
      09:35      		10:00
      10:05      		11:00
      11:05      		11:30
      11:35      		12:00
      12:05      		13:00
      13:05      		14:00
      14:05      		15:00
      15:05      		16:30
      16:35      		17:00
      17:05      		18:00
      18:05      		19:30
      19:35      		20:30
      20:35      		21:30
      21:35      		22:30
      22:35      		23:30
      23:35
      US 36 & Mccaslin Station Gate B03:2604:5605:1205:4106:4307:4308:4309:4310:1311:1311:4312:1313:1314:1315:1316:4317:1318:1319:4220:4221:4222:4223:42
      Via Varra Rd & Midway Blvd03:3105:0105:1705:4606:4807:4808:4809:4810:1811:1811:4812:1813:1814:1815:1816:4817:1818:1819:4720:4721:4722:4723:47
      US 36 & Flatiron Station Gate A03:32
      03:33      		05:02
      05:03      		05:18
      05:19      		05:47
      05:48      		06:50
      06:51      		07:50
      07:51      		08:50
      08:51      		09:50
      09:51      		10:20
      10:21      		11:20
      11:21      		11:50
      11:51      		12:20
      12:21      		13:20
      13:21      		14:20
      14:21      		15:20
      15:21      		16:50
      16:51      		17:20
      17:21      		18:20
      18:21      		19:48
      19:49      		20:48
      20:49      		21:48
      21:49      		22:48
      22:49      		23:48
      23:49
      13600 Block Via Varra03:3305:0305:1905:4806:5207:5208:5209:5210:2211:2211:5212:2213:2214:2215:2216:5217:2218:2219:5020:5021:5022:5023:50
      Denver Airport Station Gate 604:1005:4005:5606:2507:3108:3109:3110:3111:0112:0112:3113:0114:0115:0116:0117:3118:0119:0120:2721:2722:2723:2700:27 +1
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
      Times marked with "—" indicate that the vehicle does not stop at this stop.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
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      Route Path (Streets & Roads)

      Outbound: Denver Airport Station Gate 8 – Downtown Boulder Station (Ar)
      Terminal East (Commercial Vehicles) - Via Varra - Denver–Boulder Turnpike - Via Varra - Denver–Boulder Turnpike - Table Mesa Drive - South Broadway - Broadway - Walnut Street
      Inbound: Downtown Boulder Station Gate 2 – Denver Airport Station Gate 6
      14th Street - Broadway - South Broadway - 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 Ab1

      • What time does route Ab1 start operating?

        Services on route Ab1 start at 04:45 every day.

      • What time does route Ab1 stop operating?

        Services on route Ab1 end at 01:49 +1 every day.

      • Is there a stop for route Ab1 near me?

        View the nearest stop for route Ab1.

      Ab1 (Boulder Buses)

      The first stop of the Ab1 bus route is Denver Airport Station Gate 8 and the last stop is Downtown Boulder Station (Ar). Ab1 (Boulder / Denver Airport) is operational during everyday.

      Additional information: Ab1 has 15 stops. The total trip duration for this route is approximately 68 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.

      Ab1 bus near me

      Last updated on November 10, 2026