Wendy Wu Tours is offering business class upgrades with Air China from £99 on spring cherry blossom and autumn colours tours in Japan.

The offer, from £99 per person, is valid on this year’s autumn colours tours and next year’s cherry blossom tours in China for bookings made between now and June 11.

It applies to tours including the eight day Week in Japan, from £3,290, which features Mount Fuji, Tokyo and Lake Ashi cruise, and the 13 day Discover Japan itinerary, from £4,990, with highlights such as the Japanese Alps, Matsumoto Castle, Kyoto and Mount Fuji.

John Warr, global sales director, urged agents to book early, adding that the tours were offered at the most popular time for visits to Japan and tended to sell out “at a record rate”.

He added: “We want to let agents know that not only have we increased our number of departures for both seasons but we’re also able to offer this business upgrade until the end of the month.”

Upgrades are available on outbound and return journeys from £799 per person. Availability is limited.