Southampton to Luton by Train?

Question

Does anyone know approx. how long it will take? going from Southampton to Luton Train Station?

Answer 1

It will take around two and a half to three hours.

South West Trains to Waterloo, Bakerloo Line underground to Oxford Circus, Victoria Line underground to Kings Cross / St. Pancras then First Capital Connect from St. Pancras to Luton.

Answer 2

The preferred way is not via Underground to St Pancras International from Waterloo, but either to Blackfriars by tube and then First Captial Connect, or Waterloo East to London Bridge and again, FCC - it depends on your time of travel. The travel time is, however, between 2'30'' and 3'0'', depending on time