Citybus A21 Hung HOM Station - Airport (Ground Transportation Centre) Bus

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      [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus – [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus

      [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus

      05:1505:2705:3905:5106:0306:1506:3006:4507:0007:1507:3007:4508:0008:1208:2408:3608:4809:0009:1209:2409:3609:4810:0010:1210:2410:3610:4811:0011:1211:2411:3611:4812:0012:1012:2012:3012:4012:5013:0013:1013:2013:3013:4013:5014:0014:1014:2014:3014:4014:5015:0015:1015:2015:3015:4015:5016:0016:1016:2016:3016:4016:5017:0017:1217:2417:3617:4818:0018:1218:2418:3618:4819:0019:1219:2419:3619:4820:0020:1520:3020:4521:0021:2021:4022:0022:2022:4023:0023:30

      [Ctb] Hong Kong Science Museum, Chatham Road South|[Kmb] Hong Kong Science Museum

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Mody Road, Chatham Road South|[Kmb] Mody Road Tsim SHA Tsui

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] East Tsim SHA Tsui Station, Salisbury Road|[Kmb] East Tsim SHA Tsui Station, K11 Musea|[Nlb] East Tsim SHA Tsui MTR Station

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Haiphong Road, Nathan Road|[Kmb] Tsim SHA Tsui BBI - Haiphong Road

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Kimberley Road, Nathan Road|[Kmb] Kimberley Road

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Tsim SHA Tsui Police Station, Nathan Road|[Kmb] Tsim SHA Tsui Police Station

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Ning PO Street, Nathan Road|[Kmb] Ning PO Street YAU MA Tei

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Public Square Street, Nathan Road|[Kmb+Ctb] Public Square Street YAU MA TEI/<Br>Public Square Street, Nathan Road|[Kmb] Public Square Street YAU MA Tei

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Pitt Street, Nathan Road|[Kmb+Ctb] Pitt Street YAU MA TEI/<Br>Pitt Street, Nathan Road|[Kmb] Pitt Street YAU MA Tei

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Changsha Street, Nathan Road|[Kmb] Cheung SHA Street Mong Kok

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Grand Plaza, Nathan Road|[Kmb+Ctb] Nelson Street Mong KOK/<Br>Grand Plaza, Nathan Road|[Kmb] Nelson Street Mong Kok|[Nlb] Nelson Street

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] YAU Tsim Mong District Health Centre, Argyle Street|[Kmb+Ctb] Mongkok Market Complex/<Br>Yau Tsim Mong District Health Centre, Argyle Street|[Kmb] Mongkok Market Complex

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Ming KEI College, Cherry Street|[Kmb+Ctb] Ming KEI College/<Br>Ming KEI College, Cherry Street|[Kmb] Ming KEI College

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] THE Long Beach, HOI FAI Road|[Kmb+Ctb] THE Long Beach/<Br>The Long Beach, HOI FAI Road|[Kmb] THE Long Beach

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Chui YU Road, Sham Mong Road|[Kmb] Chui YUE Road

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] NAM Cheong Park, Sham Mong Road|[Kmb] NAM Cheong Park

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] NAM Cheong Station, Sham Mong Road|[Kmb+Ctb] FU Cheong Estate/<Br>Nam Cheong Station, Sham Mong Road|[Kmb] FU Cheong Estate

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] HOI TAT Estate, Sham Mong Road|[Kmb+Ctb] Tonkin Street West/<Br>Hoi TAT Estate, Sham Mong Road|[Kmb] Tonkin Street West

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] HOI LAI Estate, Sham Mong Road

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Lantau Link BUS-BUS Interchange|[Lwb+Ctb] Lantau Link Interchange/<Br>Lantau Link BUS-BUS Interchange|[Lwb] Lantau Link Interchange

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Airport (Terminal ONE)|[Lwb] Terminal 1 (Alighting Stop)|[Lwb] Terminal 1 (Alighting Stop)

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Hzmb Passenger Clearance Building|[Db] Drop OFF Area Outside Hong Kong-Zhuhai-Macao Bridge (Hong Kong Port) Passenger Clearance Building AT Departure Level (SET Down Only)|[Lwb] Hzmb Passenger Clearance Building (Alighting Stop)|[Lwb] Hzmb Passenger

      ?????????????????????????????????????????????????????????????????????????????????????????

      [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus

      06:4006:5207:0407:1607:2807:4007:5508:1008:2508:4008:5509:1009:2509:3709:4910:0110:1310:2510:3710:4911:0111:1311:2511:3711:4912:0112:1312:2512:3712:4913:0113:1313:2513:3513:4513:5514:0514:1514:2514:3514:4514:5515:0515:1515:2515:3515:4515:5516:0516:1516:2516:3516:4516:5517:0517:1517:2517:3517:4517:5518:0518:1518:2518:3718:4919:0119:1319:2519:3719:4920:0120:1320:2520:3720:4921:0121:1321:2521:4021:5522:1022:2522:4523:0523:2523:4500:05 +100:25 +100:55 +1
      Times marked with "?" indicate that the exact arrival time is unknown.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.

      [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus – [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus

      [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus05:3006:0006:3007:0007:3008:0008:2008:4009:0009:1509:3009:4209:5410:0610:1610:2610:3410:4210:5010:5811:0611:1411:2211:3011:3811:4611:5412:0212:1012:1812:2612:3412:4212:5013:0013:1013:2013:3013:4013:5014:0014:1014:2014:3014:4014:5015:0015:1015:2015:3015:4015:5016:0016:1016:2016:3016:4016:5017:0017:1217:2417:3617:4818:0018:1218:2418:3618:4819:0019:1219:2419:3619:4820:0020:1220:2420:3620:4821:0021:1221:2421:3621:4822:0022:2022:4023:0023:2023:40
      [Ctb] Hong Kong-Zhuhai-Macao Bridge Hong Kong Port|[Db] Domestic NON-Franchised BUS Pick-UP Area OF Hong Kong-Zhuhai-Macao Bridge (Hong Kong Port) Public Transport Interchange (Pick UP Only)|[Lwb] Hzmb Hong Kong Port|[Nlb] Hzmb Hong Kong Port|[Pi] Domesti?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Lantau Link BUS-BUS Interchange|[Lwb+Ctb] Lantau Link Interchange/<Br>Lantau Link BUS-BUS Interchange|[Lwb] Lantau Link Interchange?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Aquamarine, Sham Mong Road|[Kmb+Ctb] Aquamarine/<Br>Aquamarine, Sham Mong Road?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] HOI TAK Court, Sham Mong Road|[Kmb+Ctb] FAT Tseung Street West/<Br>Hoi TAK Court, Sham Mong Road|[Kmb] FAT Tseung Street West?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Metropark Hotel Mongkok, LAI CHI KOK Road|[Kmb+Ctb] Arran Street Mong KOK/<Br>Metropark Hotel Mongkok, LAI CHI KOK Road|[Kmb] Arran Street Mong Kok?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Argyle Centre, Nathan Road|[Kmb+Ctb] Mong KOK Station, Argyle Centre/<Br>Argyle Centre, Nathan Road|[Kmb] Mong KOK Station, Argyle Centre?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Bank Centre, Nathan Road|[Kmb+Ctb] Nelson Street Mong KOK/<Br>Bank Centre, Nathan Road|[Kmb] Nelson Street Mong Kok?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Sino Centre, Nathan Road|[Kmb] SOY Street Mong Kok?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] MAN Ming Lane, Nathan Road|[Kmb+Ctb] MAN Ming Lane YAU MA TEI/<Br>Man Ming Lane, Nathan Road|[Kmb] MAN Ming Lane YAU MA Tei?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Nathan Hotel, Nathan Road|[Kmb] Saigon Street YAU MA Tei?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Prudential Centre, Nathan Road|[Kmb] TAK Shing Street Tsim SHA Tsui?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Kimberley Road, Nathan Road|[Kmb] Kimberley Road, Mira Place?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Cameron Road, Nathan Road|[Kmb] Cameron Road, Kowloon Mosque?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Middle Road, Nathan Road|[Kmb] Tsim SHA Tsui BBI - Middle Road?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] East Tsim SHA Tsui Station, Salisbury Road|[Kmb+Ctb] East Tsim SHA Tsui Station, K11 Musea/<Br>East Tsim SHA Tsui Station, Salisbury Road|[Kmb] East Tsim SHA Tsui Station, K11 Musea?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Mody Road, Chatham Road South?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Granville Road, Chatham Road South|[Kmb] Granville Road?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Hong Kong Science Museum, Chatham Road South|[Kmb] Hong Kong Science Museum?????????????????????????????????????????????????????????????????????????????????????????
      [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus06:5507:2507:5508:2508:5509:2509:4510:0510:2510:4010:5511:0711:1911:3111:4111:5111:5912:0712:1512:2312:3112:3912:4712:5513:0313:1113:1913:2713:3513:4313:5113:5914:0714:1514:2514:3514:4514:5515:0515:1515:2515:3515:4515:5516:0516:1516:2516:3516:4516:5517:0517:1517:2517:3517:4517:5518:0518:1518:2518:3718:4919:0119:1319:2519:3719:4920:0120:1320:2520:3720:4921:0121:1321:2521:3721:4922:0122:1322:2522:3722:4923:0123:1323:2523:4500:05 +100:25 +100:45 +101:05 +1
      Times marked with "?" indicate that the exact arrival time is unknown.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
      Times marked with "?" indicate that the exact arrival time is unknown.
      The schedule is provided in the local timezone. Times with "(+1)" indicate departures on the next day.
      Last updated on April 1, 2026
      Build real-time departures into your app Free API Access →

      Route Path (Streets & Roads)

      Outbound: [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus – [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus
      安運道 On Wan Road - 漆咸道南 Chatham Road South - 梳士巴利道 Salisbury Road - 彌敦道 Nathan Road - 深圳街 Shamchun Street - 西九龍走廊西 West Kowloon Corridor West - 海輝道 Hoi Fai Road - 深旺道 Sham Mong Road - 北大嶼山公路 North Lantau Highway - 暢航路 Cheong Hong Road
      Inbound: [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus – [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus
      暢航路 Cheong Hong Road - 順暉路 Shun Fai Road - 北大嶼山公路 North Lantau Highway - 深旺道 Sham Mong Road - 荔枝角道 Lai Chi Kok Road - 彌敦道 Nathan Road - 梳士巴利道 Salisbury Road - 漆咸道南 Chatham Road South - 安運道 On Wan Road
      All data is available in GTFS feed: kong-en

      Bus A21 FAQ

      • What time does the A21 bus start operating?

        Services on the A21 - Hung HOM Station - Airport (Ground Transportation Centre) bus start at 05:15 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.

      • What time does the A21 bus stop working?

        Services on the A21 - Hung HOM Station - Airport (Ground Transportation Centre) bus stop at 00:55 +1 on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.

      • Is there a A21 bus stop near me?

        Click here to view the nearest A21 - Hung HOM Station - Airport (Ground Transportation Centre) bus stop.

      A21 (Mong Kok Buses)

      The first stop of the A21 bus route is [Ctb] Hung HOM Station|[Kmb] Hung HOM Station BUS Terminus and the last stop is [Ctb] Airport (Ground Transportation Centre)|[Lwb] Airport (GTC) BUS Terminus. A21 (Hung HOM Station - Airport (Ground Transportation Centre)) is operational during everyday.

      Additional information: A21 has 24 stops and the total trip duration for this route is approximately 85 minutes.

      See why over 2 million users trust and consider busmaps.com as the best public transport website. busmaps gives you Mong Kok Buses suggested routes, real-time bus tracker, line route maps in Mong Kok, and helps to find the closest A21 bus stops near you. No internet available? Download an offline PDF map and bus schedule for the A21 bus to take on your trip.

      A21 bus near me

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