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The Eurostar is the only direct train from London to Paris — 2h15m, St Pancras to Gare du Nord. Prices range from £39 to £350 return depending on when you book.
How to Get the Cheapest Eurostar Tickets
Book 90+ days ahead
Cheapest fares from £39 each way — sell out fast
Travel Tuesday-Thursday
Weekday fares 30-40% cheaper than Friday/Sunday
Snap up Eurostar sales
Usually January, August, and Black Friday
Is Flying Cheaper than Eurostar?
| Option | Door-to-door Time | From Price | Carbon |
|---|---|---|---|
| Eurostar ⭐ | 3.5-4 hours | £39 each way | Low |
| easyJet CDG | 5-6 hours | £25* each way | High |
| BA Heathrow | 5.5-6.5 hours | £45* each way | High |
*Flying headline price excludes £15-20 hold luggage, check-in fees, and 90-120 mins each end for airport transfers.
Insider tip: Eurostar cheapest fares are Standard Non-Flexible. Buy these if your dates are fixed. Refundable Standard Premier costs 3x as much.
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Sento earns a referral if you click through our links — this never affects our recommendations. Prices and details correct at time of publication. Updated April 2026.