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321

Luton – Watford

via Harpenden, Chiswell Green

Arriva Beds & Bucks First 04:40 Last 22:57Every day

Route 321 runs between Luton and Watford via Harpenden, Chiswell Green. See the full timetable, stops and live buses.

Quick departures

Live departures from key stops on this route

StopTowards Luton Station InterchangeTowards Watford Hospital Car Park
Watford Hospital Car Park32106:0206:2906:54and more32105:5706:5507:17and more
Ragged Hall Lane32105:4906:4407:16and more32105:2306:1006:31and more
The Plough and Harrow PH32106:1006:4007:06and more32105:0305:4806:05and more
Luton Station Interchange32106:3507:0507:32and more32104:4005:2505:40and more

Route stops

All stops on the route towards Watford Hospital Car Park

StopApprox. time
  1. 1Luton Station Interchange · Luton Town Centre04:40
  2. 2Church Street · Luton Town Centre04:42
  3. 3Holly Street · New Town04:45
  4. 4Tennyson House · Stockwood04:48
  5. 5Stockwood Park Entrance · Stockwood04:49
  6. 6Ludlow Avenue · Stockwood04:49
  7. 7Bull Wood · Pepperstock04:51
  8. 8Newlands Road · Pepperstock04:51

Frequently asked questions about the 321

What time is the first and last 321 bus?
The first 321 of the day departs at 04:40 and the last one departs at 22:57. These are the scheduled departure times of the first and last journeys, which may start from either end of the route — check the timetable above for times at your own stop.
Does the 321 bus run at weekends?
Yes. The 321 runs seven days a week, including Saturdays and Sundays. Sunday and bank holiday timetables are usually less frequent than weekdays, so check the times above before travelling.
How long does the 321 bus take?
A full end-to-end journey on the 321 takes about 84 minutes between Luton and Watford, running via Harpenden and Chiswell Green. Allow extra time at peak periods — this is the scheduled running time, not a guarantee.
Who operates the 321 bus?
The 321 is operated by Arriva Beds & Bucks. For tickets, fares, lost property or complaints about a journey you need to contact them directly — we're an independent service and can't help with those.

Timetable data from the Bus Open Data Service (BODS), Department for Transport. Live positions from operator vehicle feeds. Times are subject to change.