Eurostar has turned 30, and to celebrate it is offering a 30% off flash sale.
All adult tickets are reduced by 30% as long as you book by Thursday.
All three travel classes – Eurostar Standard, Eurostar Plus and Eurostar Premier (note the new names) – are included

You can book from London St Pancras to Paris, Lille, Brussels, Amsterdam and Rotterdam.
Only adult tickets are reduced. The price discount should show automatically on the Eurostar website.
Remember that Amsterdam and Rotterdam currently require a change of train at Brussels Midi due to engineering work in Amsterdam.
You can travel between 26th November and 13th February (8th February for Amsterdam and Rotterdam).
In terms of dates, there are a small number of blackout dates: 29th November, 30th November, 1st December, 21st December, 23rd December, 26th December, 27th December, 30th December, 8th February and 9th February.
Get an extra 2% to 10% off
There are two ways of making an additional saving.
If you book via Trip.com (click here) you will (in theory) receive an additional discount if you use code #TRIPSTAR. New customers to Trip.com get an extra 5% off whilst existing Trip.com users get an extra 2% off. I say ‘in theory’ because I couldn’t get this to work when I tested it yesterday.
What DOES work OK is booking via the Uber app. Most people will see an offer for 10% back in Uber credits on all train bookings, including Eurostar, booked via Uber. You can still manage your booking on the Eurostar website in my experience.
In both cases the prices match those shown by the Eurostar website.
Don’t forget Club Eurostar
Wherever you book, you will earn Club Eurostar points from your trip. These can be used for free tickets, upgrades, a cash discount on a future trip or converted to Accor Live Limitless hotel points.
You can top up your Club Eurostar balance with American Express Membership Rewards points (at 15:1) or Accor Live Limitless hotel points.
Our guide to Club Eurostar is in the process of being updated, but most of the key information is in this article relating to the scheme changes last year.