Partnering with Vietnam Airlines, the Asian specialist is offering clients visiting the country between September 1 and December 8 a one-way business-class upgrade on all tours over the period.

Those who book themselves a Vietnam getaway with the operator between June 14 and July 4 will receive the inbound upgrade on direct Vietnam Airlines flights to London Heathrow.

Customers have the option to upgrade for both legs of their journey for £899pp.

The deal means travellers can take advantage of Wendy Wu’s “Vietnam at a Glance” 12-day itinerary beginning in Saigon, with a chance to explore the Cu Chi tunnel network used by the Viet Cong, visit Hanoi and cruise along Halong Bay. The package starts from £2,190pp.

Also available is the 16-day “Vietnam Trails” tour, which offers customers an opportunity to experience “a day in the life” of living on the Mekong Delta, and expand their culinary skills with a local cooking class in Hoi An from £2,390pp.

Managing director Laurence Hicks said: “Vietnam is a country of epic beauty and unique heritage and autumn is a fantastic time to visit when temperatures are more moderate and rainfall is lighter. We’re delighted to offer our customers the chance to experience Vietnam Airlines’ business class facilities and we believe this will help to make their trip to Vietnam even more special.”