321 Luton to Watford via Harpenden, St Albans

Operated by Arriva Beds and Bucks. Registered as running via St Albans, Watford General Hospital, Croxley Green, Rickmansworth. First bus 04:40, last bus 22:57. 115 journeys on weekdays. Today, a Sunday: first 06:10, last 22:30. Fares: singles usually capped at £3 — more.

Next towards Watford from Luton Station Interchange (Stand 9): 19:00, 20:00, 21:00

Next towards Luton from Watford Hospital Car Park (opp): 18:50, 19:35, 20:30

Wanted a different 321? 6 other bus routes are numbered 321 elsewhere in the UK — see every 321 bus timetable by area.

Timetable

Ends at Watford Hospital Car Park unless marked “to …” · Sunday · 26 journeys
Stop 06:1007:1007:4008:1008:4009:1009:3510:0010:3011:0011:3012:0012:3013:0013:3014:0014:3015:0015:3016:0017:0018:0019:0020:0021:0022:00 to St Peter's Street
Luton Station Interchange (Stand 9) 06:1007:1007:4008:1008:4009:1009:3510:0010:3011:0011:3012:0012:3013:0013:3014:0014:3015:0015:3016:0017:0018:0019:0020:0021:0022:00
Stockwood Park Entrance (opp) 06:2107:2107:5108:2108:5109:2109:4610:1110:4111:1111:4112:1112:4113:1113:4114:1114:4115:1115:4116:1117:1118:1119:1020:1021:1022:10
The Common (opp) 06:2807:2807:5808:2808:5809:2809:5310:1810:4811:1811:4812:1812:4813:1813:4814:1814:4815:1815:4816:1817:1818:1819:1720:1721:1722:17
The George PH (Stop D) 06:3407:3408:0408:3409:0409:3409:5910:2510:5511:2511:5512:2512:5513:2513:5514:2514:5515:2415:5416:2417:2418:2419:2220:2221:2222:22
Texaco Garage (nr) 06:4307:4308:1308:4309:1309:4310:0710:3611:0611:3612:0612:3613:0613:3614:0614:3615:0615:3416:0416:3417:3418:3319:3120:3121:3122:31
St Peter's Street (Stop 5) 06:5007:5008:2008:5009:2009:5010:1710:4711:1711:4712:1712:4713:1713:4714:1714:4715:1715:4316:1316:4117:4418:4219:3920:3921:3922:39
Ragged Hall Lane (opp) 06:5907:5908:2908:5909:2909:5910:2910:5911:2911:5912:2912:5913:2913:5914:2914:5815:2815:5416:2416:5117:5418:5219:4720:4721:47·
Bucknalls Lane (nr) 07:0808:0808:3809:0809:3810:0710:3911:0911:3912:0912:3913:0913:3914:0914:3915:0915:3916:0416:3417:0118:0419:0219:5520:5521:55·
Library (nr) 07:1608:1608:4609:1609:4610:1710:4911:1911:4912:1912:4913:1913:4914:1914:4915:1915:4916:1316:4317:1018:1219:0920:0221:0222:02·
Watford Junction Railway Station (Stop 2) 07:2408:2408:5409:2409:5410:2710:5911:2911:5912:2912:5913:2913:5914:2914:5915:2915:5916:2316:5217:1918:2119:1820:1121:1122:11·
Beechen Grove (Stop M) 07:2908:2908:5909:2909:5910:3111:0311:3312:0312:3313:0313:3314:0314:3315:0315:3316:0316:2716:5617:2318:2519:2120:1421:1422:14·
Watford Hospital Car Park (opp) 07:3908:3909:0909:3910:0810:4311:1611:4612:1612:4613:1613:4614:1614:4615:1615:4616:1616:4217:0917:3318:3519:2920:2221:2222:22·

Each column is one journey, headed by the time it sets off; one that finishes short of the usual end says where ("to …") — not every journey on this route runs the whole way. A · means that journey does not stop there. Times are shown at the route's main timing stops — buses serve all stops in between. Switch a table to All stops for every stop it calls at, or open a stop's own page for live departures there.

Most single fares in England are capped at £3 until 31 Dec 2026, then £2 — check with Arriva Beds and Bucks whether this route takes part. Details →

Tickets on the 321

Arriva Beds and Bucks listed singles on this route for adults, children and young people when it last published its fares.

Adult Single · Child Single · Child Half Single

…and 4 more tickets on this route.

Ticket types come from Arriva Beds and Bucks's own fares data on the Bus Open Data Service, last updated 21 February 2025 — over a year ago, so what is sold today may differ. That dataset lists what's sold, not what it costs, so check prices with Arriva Beds and Bucks.

43–59% on time
average delay 3 min · the range 143 live GPS observations over 30 days can support

Christmas & bank holidays

These dates are not the usual timetable for the day they fall on. They come from the operator’s published data, which for Christmas and New Year is often late or incomplete, so check with Arriva Beds and Bucks before you travel. Everything above is an ordinary week.

Not published yet: Christmas Eve, Christmas Day, Boxing Day, New Year's Eve and New Year's Day. Operators often publish festive timetables only a few weeks ahead, so check again nearer the date.

Route map

All stops on route 321

321 towards Watford

All 73 stops
  1. Luton Station Interchange (Stand 9) Luton Town Centre
  2. Church Street (Stop C9) Luton Town Centre
  3. Holly Street (adj) New Town
  4. Tennyson House (o/s) Stockwood
  5. Stockwood Park Entrance (opp) Stockwood
  6. Ludlow Avenue (adj) Stockwood
  7. Bull Wood (o/s) Pepperstock
  8. Newlands Road (opp) Pepperstock
  9. Luton Hoo Hotel (nr) Kinsbourne Green
  10. Gibraltar Farm (opp) Kinsbourne Green
  11. West Hyde Road (adj) Kinsbourne Green
  12. The Fox PH (opp) Kinsbourne Green
  13. The Common (opp) Kinsbourne Green
  14. Farm Avenue (opp) Harpenden
  15. Ridgewood Drive (opp) Harpenden
  16. Roundwood Lane (opp) Harpenden
  17. Park Mount (opp) Harpenden
  18. Clarence Road (nr) Harpenden
  19. Old Rectory Close (opp) Harpenden
  20. Old Cock Inn (opp) Harpenden
  21. The George PH (Stop D) Harpenden
  22. Harpenden House Hotel (nr) Harpenden
  23. Crabtree Lane (adj) Harpenden
  24. The Plough and Harrow PH (o/s) Harpenden
  25. Queens Road (opp) Harpenden
  26. St Albans Road (SW-bound) Hatching Green
  27. West Common Way (opp) Hatching Green
  28. Cross Lane (nr) Hatching Green
  29. Ayres End Lane (nr) Harpenden
  30. Childwickbury (S-bound) Harpenden
  31. Hawkswick Lodge Farm (opp) St Albans
  32. Hawkswick (opp) St Albans
  33. Texaco Garage (nr) New Greens
  34. St Albans Girls' School (nr) New Greens
  35. The Ancient Briton (nr) New Greens
  36. Heath Farm Lane (nr) Bernards Heath
  37. Chime Square (opp) St Albans
  38. St Peter's Street (Stop 5) St Albans
  39. Town Hall (opp) St Albans
  40. Abbey (opp) St Albans
  41. Belmont Hill (nr) St Albans
  42. St Albans Abbey Railway Station (Stop A) St Albans
  43. King Harry PH (opp) St Stephens
  44. Midway (opp) St Stephens
  45. Ragged Hall Lane (opp) Chiswell Green
  46. West Avenue (nr) Chiswell Green
  47. Three Hammers PH (opp) Chiswell Green
  48. Driftwood Avenue (adj) Chiswell Green
  49. Long Fallow (opp) Chiswell Green
  50. Lye Lane (nr) Chiswell Green
  51. Oakwood Road (adj) Bricket Wood
  52. Black Boy PH (nr) Bricket Wood
  53. Bucknalls Lane (nr) Garston
  54. Three Horseshoes PH East (opp) Garston
  55. Park Parade (nr) Garston
  56. Rochester Drive (opp) Garston
  57. First Avenue (nr) Garston
  58. Cow Lane (nr) Garston
  59. Library (nr) North Watford
  60. Bushey Mill Lane (nr) North Watford
  61. Buckingham Road (nr) North Watford
  62. Windsor Road (nr) North Watford
  63. Regent Street (opp) North Watford
  64. Brixton Road (nr) North Watford
  65. Railway Bridge (S-bound) Watford
  66. Watford Junction Railway Station (Stop 2) Watford
  67. St John's Road (S-bound) Watford
  68. Beechen Grove (Stop M) Watford
  69. Water Lane (Stop P) Watford
  70. Watford High Street Railway Station (Stop B) Watford
  71. Tesco (nr) Watford
  72. Waterfields Way (nr) Watford
  73. Watford Hospital Car Park (opp) Watford

321 towards Luton

All 73 stops
  1. Watford Hospital Car Park (opp) Watford
  2. Dalton Way (NE-bound) Watford
  3. Watford High Street Railway Station (Stop A) Watford
  4. King Street (Stop T) Watford
  5. Market Street (Stop J) Watford
  6. Clarendon Road (Stop S) Watford
  7. St John's Road (N-bound) Watford
  8. Watford Junction Railway Station (Stop 5) Watford
  9. Railway Bridge (N-bound) Watford
  10. Regent Street (adj) North Watford
  11. Windsor Road (opp) North Watford
  12. Buckingham Road (opp) North Watford
  13. Bushey Mill Lane (opp) North Watford
  14. Library (opp) North Watford
  15. Holland Gardens (nr) Garston
  16. First Avenue (opp) Garston
  17. Rochester Drive (nr) Garston
  18. Garston Drive (nr) Garston
  19. Premier Inn (adj) Garston
  20. Three Horseshoes PH East (nr) Garston
  21. Bucknalls Lane (opp) Garston
  22. Black Boy PH (opp) Bricket Wood
  23. Oakwood Road (opp) Bricket Wood
  24. Lye Lane (opp) Chiswell Green
  25. Long Fallow (nr) Chiswell Green
  26. Driftwood Avenue (opp) Chiswell Green
  27. Three Hammers PH (nr) Chiswell Green
  28. West Avenue (opp) Chiswell Green
  29. Ragged Hall Lane (adj) Chiswell Green
  30. Midway (nr) St Stephens
  31. King Harry PH (nr) St Stephens
  32. St Albans Abbey Railway Station (Stop B) St Albans
  33. Belmont Hill (opp) St Albans
  34. Abbey (nr) St Albans
  35. Town Hall (nr) St Albans
  36. St Peter's Street (Stop 10) St Albans
  37. Chime Square (nr) St Albans
  38. Heath Farm Lane (opp) Bernards Heath
  39. The Ancient Briton (opp) New Greens
  40. St Albans Girls' School (opp) New Greens
  41. Texaco Garage (opp) New Greens
  42. Hawkswick (nr) St Albans
  43. Hawkswick Lodge Farm (nr) St Albans
  44. Childwickbury (N-bound) Harpenden
  45. Ayres End Lane (opp) Harpenden
  46. Cross Lane (opp) Hatching Green
  47. West Common Way (nr) Hatching Green
  48. St Albans Road (NE-bound) Hatching Green
  49. Queens Road (adj) Harpenden
  50. The Plough and Harrow PH (opp) Harpenden
  51. Crabtree Lane (opp) Harpenden
  52. Harpenden House Hotel (opp) Harpenden
  53. The George PH (Stop C) Harpenden
  54. Old Cock Inn (o/s) Harpenden
  55. Old Rectory Close (adj) Harpenden
  56. Douglas Road (nr) Harpenden
  57. Park Mount (nr) Harpenden
  58. Roundwood Lane (nr) Harpenden
  59. Ridgewood Drive (nr) Harpenden
  60. Farm Avenue (nr) Harpenden
  61. The Common (adj) Kinsbourne Green
  62. The Fox PH (nr) Kinsbourne Green
  63. West Hyde Road (opp) Kinsbourne Green
  64. Gibraltar Farm (adj) Kinsbourne Green
  65. Luton Hoo Hotel (opp) Kinsbourne Green
  66. Newlands Road (adj) Pepperstock
  67. Bull Wood (opp) Pepperstock
  68. Stockwood Park Entrance (o/s) Stockwood
  69. The Mount (opp) Stockwood
  70. Whitehill Avenue (adj) Stockwood
  71. Holly Street (opp) New Town
  72. Church Street (Stop C3) Luton Town Centre
  73. Luton Station Interchange (Stand 9) Luton Town Centre

Service registration & registered changes

From official Traffic Commissioner registrations. Registration PF0000508/106 · Changes in Central Bedfordshire Council · All service changes →

Towns & areas on this route

WatfordSt AlbansHarpendenNorth WatfordLuton Town CentreGarstonBricket WoodNew GreensChiswell GreenHatching GreenStockwoodKinsbourne Green

Frequently asked questions

What time is the first 321 bus?

The first 321 departure on weekdays leaves at 04:40 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).

What time is the last 321 bus?

The last 321 on weekdays leaves its first stop at 22:57. Always check the timetable for your specific stop — later stops are reached after this time.

How much does the 321 bus cost?

Most single fares in England are capped at £3 until 31 December 2026 (then £2 from 1 January 2027). Arriva Beds and Bucks day and weekly tickets can work out cheaper if you travel more than twice a day.

Who runs the 321 bus?

The 321 is operated by Arriva Beds and Bucks.

Timetable data from Arriva Beds and Bucks via the DfT Bus Open Data Service (South East England feed). Registered with the Traffic Commissioner as PF0000508/106. Check before you travel — services can change at short notice.