Flash sale on Eurostar with tickets for £35 each way

Eurostar has a flash sale for the next few days, offering tickets from just £35 each way for travel between London and Lille, Paris, and Brussels.The offer is valid for trains between Wednesday 13th March and Thursday 23rd May, with a few blackout dates, and the flash sale runs from today until Thursday (7th March).
Although they are on sale, the discounted tickets still qualify for Eurostar’s policy on changed travel plans and can be moved to a different date with no exchange fee up