Eurostar
London to Paris train is surely one the fastest and comfortable way of traveling between the two capitals. But if you are looking for the cheaper option then try going from
London to Paris by Bus. This may be a little time consuming, but it the cheapest option available.
Buses and coaches provides the cheapest mode of travel with the tickets just costing you only £15.But it will take you around 9 to 10 hours in going from
London to Paris by Bus. There are many bus services in UK. A low budgeted bus service is Eurolines. Eurolines runs coach service throughout Europe and is by far the cheapest method, but is comparatively time consuming.
Day time journey would kill most of your day so it is better to take a night bus. The London to Paris journey starts from Victoria Coach Station. The tickets can be booked at the official website of Eurolines.
Though this is not the most comfortable and fastest option for traveling but is surely one of the cheapest one. For a faster ride take Eurostar to Paris and you will be in the centre of the city all relaxed and fresh.