From €671 return per person · cheapest departure 4 Dec
In short: The cheapest return flight from London to Tokyo we found costs €671 per person (departure 4 Dec, Shenzhen, 1 stop, 35 h 50 min). Prices by departure week range from €671 to €1,713; the typical price is €964. Source: Google Flights, updated 25 October 2026.
When is it cheapest to fly?
Cheapest: departure 4 Dec · €671 return, per person Most expensive: 18 Dec · €1,713. Booking the cheapest week saves up to 61 %. Cheapest return fare per person for a departure each week (trips of 7–7 days), economy class. Prices from Google Flights, read weekly; they change daily.
Cheapest departure
💰4 Dec – 11 Dec€671Shenzhen · 1 stop · 35 h 50 min · return, per person