Planning guidance, not live fares or a running timetable. This starting point is London Kings Cross (KGX) → Cambridge (CBG). Confirm stations, services and ticket conditions with the booking site.
Start with the stations
This plan uses London Kings Cross and Cambridge. Cambridge North is a different station, and searches may offer different London terminals. Check your destination before comparing prices.
A comparison worth making
A return or flexible fare may suit a day trip, but always check the route and time restrictions for both legs. Compare alternatives using the same passengers and Railcards.
Make a fair price comparison
Use identical dates, trains, passengers and Railcards when comparing retailer quotes. Check nearby times if your schedule allows. For return travel, compare two singles with a return and review the flexibility of each option. A split-ticket retailer may show another option, but splitting is not guaranteed to save.
Before paying
Check all mandatory fees, the final price, changes and refund conditions, and whether disruption affects your plans. Keep enough time for connections and onward travel. If you need assistance, confirm it with the provider. We do not display route prices, recommend a particular departure or claim every retailer is included.
Guidance checked 6 October 2026. Sources: Buying a train ticket, Split-ticket guidance. Confirm current conditions before booking.