Eurostar £35 ticket discounts aren’t available on:
London St Pancras International to Paris Gare du Nord: September 25, October 2, October 9, October 11, October 23, October 24, October 25, October 26, November 1
Paris Gare du Nord to London St Pancras International: September 27, October 5, October 11, October 18, October 25, October 26, November 1
London St Pancras International to Brussels-Midi/Zuid / Lille Europe: September 27, October 5, October 19, October 25, October 26, October 27, November 2, November 8
Brussels-Midi/Zuid / Lille Europe to London St Pancras International: September 25, September 27, October 2, October 5, October 18, October 30, November 1, December 6
London St Pancras International to Rotterdam Centraal / Amsterdam Centraal: September 27, October 2, October 4, October 9, October 16, October 17, October 24, October 25
Rotterdam Centraal / Amsterdam Centraal to London St Pancras International: September 25, September 27, October 11, October 18, October 19, October 30, October 31, November 1, November 14
Eurostar trains will not operate on:
London St Pancras International to and from Amsterdam Centraal: October 3, October 4, October 5
London St Pancras International to and from Rotterdam Centraal: November 7, November 8, December 5, December 6, December 12, December 13
Rotterdam Centraal to London St Pancras International: September 27