As per the answers to Travelling by train in mainland Europe, will I save money by booking my tickets early?, you should normally book your Eurostar tickets in advance, ideally a few months out ...
Other than Eurostar, are there any sub-4-hour options to get between London and Lille (without a car)?
If booked in far enough in advance (where "enough" varies depending on the popularity of the train), it's possible to get a return between London and Lille on the Eurostar for £69 or €88 (depending on ...
I've been looking at train times from Lille to Paris, and was rather surprised to discover that the last train back is very early. On Monday-Saturday it leaves Lille at 21:51, and gets into Paris at ...