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  6. 121 Route

121 Bus - Union/Streeterville Express

A bus service operated by Chicago Transit Authority
List of stops
          Number of stops: 7
          Monday to Friday

          Union Station Transit Center – Fairbanks & Chicago

          Union Station Transit Center

          		06:1006:2506:3706:4907:0107:0807:1407:2007:2607:3207:3807:4407:5007:5608:0208:0808:1508:2308:3308:4308:5309:0309:15

          Michigan (Lower) & E. Wacker

          		06:2006:3506:4706:5907:1207:1907:2507:3107:3807:4407:5007:5608:0208:0808:1408:2008:2708:3508:4508:5509:0509:1509:26

          Michigan (Lower) & Illinois

          		06:2106:3606:4807:0007:1307:2107:2707:3307:3907:4507:5107:5708:0308:1008:1608:2208:2908:3708:4708:5709:0609:1609:27

          Fairbanks & Ohio

          		06:2406:3906:5107:0307:1507:2307:2907:3507:4107:4707:5408:0008:0608:1208:1808:2408:3108:3908:4908:5909:0909:1809:29

          Fairbanks & Erie

          		06:2406:3906:5107:0307:1607:2407:3007:3607:4207:4807:5508:0108:0708:1308:1908:2508:3208:4008:5009:0009:1009:1909:30

          Fairbanks & Superior

          		06:2506:4006:5207:0407:1607:2407:3007:3607:4307:4907:5508:0108:0708:1408:2008:2608:3308:4108:5109:0109:1009:2009:31

          Fairbanks & Chicago

          		06:2606:4106:5307:0507:1707:2507:3107:3707:4407:5007:5608:0208:0808:1508:2108:2708:3408:4208:5209:0209:1109:2109:32

          All trips in this timetable are wheelchair accessible.

          Fairbanks & Huron – Union Station Transit Center

          Fairbanks & Huron14:3815:0815:2815:4315:5416:0516:1216:2016:2716:3516:4216:5016:5717:0517:1217:2017:2717:3717:4717:5818:1318:28
          Fairbanks & Ohio14:3915:0915:2915:4415:5616:0716:1416:2216:3016:3716:4516:5217:0017:0717:1417:2217:2917:3917:4918:0018:1418:29
          Michigan (Lower) & Illinois14:4215:1215:3215:4715:5816:1016:1816:2516:3316:4116:4816:5617:0317:1117:1817:2517:3317:4217:5218:0218:1718:32
          Wacker (Lower) & Michigan14:4415:1415:3415:4916:0016:1216:2016:2716:3516:4316:5016:5817:0517:1317:2017:2717:3517:4417:5418:0418:1818:33
          Wacker (Upper) & Adams14:5515:2515:4516:0016:1216:2516:3316:4116:5016:5817:0517:1317:2017:2817:3417:4117:4817:5718:0618:1618:2918:44
          Adams & Canal14:5715:2715:4716:0216:1416:2616:3516:4316:5217:0017:0717:1517:2217:3017:3617:4317:5017:5918:0818:1718:3018:45
          Union Station Transit Center15:0015:3015:5016:0516:1716:2916:3816:4616:5517:0317:1017:1817:2517:3317:3917:4617:5318:0218:1118:2018:3318:48

          All trips in this timetable are wheelchair accessible.

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          Route Path (Streets & Roads)

          Outbound: Union Station Transit Center – Fairbanks & Chicago
          West Jackson Boulevard - North Michigan Avenue - North Fairbanks Court
          Inbound: Fairbanks & Huron – Union Station Transit Center
          North Fairbanks Court - North Michigan Avenue - West Lower Wacker Drive - West Adams Street - West Jackson Boulevard

          Schedules and stops for this route are published in GTFS: cta-chicago

          Additional route information: transitchicago.com

          Frequently asked questions about route 121

          • What time does route 121 start operating?

            Services on route 121 start at 06:10 from Monday to Friday.

          • What time does route 121 stop operating?

            Services on route 121 end at 09:32 from Monday to Friday.

          • Is there a stop for route 121 near me?

            View the nearest stop for route 121.

          121 (Chicago Buses)

          The first stop of the 121 bus route is Union Station Transit Center and the last stop is Fairbanks & Chicago. 121 (Union/Streeterville Express) is operational during on weekdays.

          Additional information: 121 has 7 stops. The total trip duration for this route is approximately 19 minutes.

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

          121 bus near me

          Similar Routes & Alternatives to 121

          Looking for alternatives to 121? Discover top-rated routes that share similar paths and stops. Compare schedules and find a backup route for your journey.

          120 - Ogilvie/Streeterville Express
          57%
          124 - Navy Pier
          50%
          Last updated on November 11, 2026