*see UPDATE below* Fans of an open jaw tickets have some good option to explore Japan and visit Rome, Paris or London on your way. Based on Russian flag carrier Aeroflot you can book open jaw flights on route Rome / Paris - Tokyo - London already for £245 (€279). Very limited availability in last quarter of 2017 though.. This is including all charges and fees and checked luggage..
*UPDATE*.: Now available for next travel period incl. summer holidays 2018. Check our updated booking and travel date samples if interested in this open-jaw solution from Europe to Japan..
As mentioned very limited options are available between May and August 2018. Flights with Aeroflot have one short layover in Moscow. Below you can refer to booking as well as travel date samples.
Booking samples
Rome - Tokyo - London from £245 (€279)
Paris - Tokyo - London from £258 (€293)
Milan - Tokyo from €407 (Alitalia non-stop flights)
Travel samples from Rome
23.5. - 9.6.
30.5. - 11.6.
6. - 23.6.
13. - 25.6.
20. - 30.6.
20.6. - 7.7.
27.6. - 14.7.
18. - 28.7.
Travel samples from Paris
15. - 21.5.
5. - 16.6.
9. - 23.6.
11. - 25.6.
16. - 30.6.
23.6. - 7.7.
14. - 28.7.
16. - 30.7.
19.7. - 4.8.
28.7. - 13.8.
4. - 11.8.
If you need an accommodation in Rome, Paris, London or Tokyo we recommend Booking.com or consider following promo codes that offer Hotels.com, Hotelopia or Venere.
Booking sample of cheap open jaw flights Rome / Paris - Tokyo - London from £245 (€279) here. In this case you would fly from Italy to Japan on 18th of July. Your return flight from Asia back to UK would be on 28th of July 2018. Considering that flights are available also during summer holidays this is excellent opportunity to visit Japan during main tourist season for most of the travellers in Europe..