Free Premium Economy Upgrade offer applies to selected fully escorted and Private Southeast Asia tours only, on tours departing 1 September - 11 December 2019, 1 January - 15 July 2020 and 1 September - 11 December 2020. Valid one-way on inbound flights from Hanoi, Saigon, Siem Reap or Phnom Penh. Flying with Vietnam Airlines to London Heathrow. You can upgrade to Premium Economy both ways from £199pp. Offer valid for new bookings only. Offer can be combined with Victoria Mekong Cabin Upgrade offer but not with other offers or promotions, including loyalty discounts. If booking both the Premium Economy Upgrade offer in conjuction with the free Upper Deck Cabin Upgrade offer, please call one of our travel experts. Subject to availability. Book between 6 August and 5 September 2019. Wendy Wu Tours reserve the right to change or withdraw this offer.