 Vietnam Airlines have traditionally increased flights among Vietnamese cities to cater for the heavy demands brought by the annual Tết celebration. This busy period, which could fall anywhere from late January to mid-February, is Vietnam's most important celebration; hundreds of extra flights are scheduled by domestic airlines during this period to allow Vietnamese to return to their families, often in the rural ares, to celebrate the occasion. In 2010, the airline increased its seat capacity from 45 % to 120 % on certain domestic routes. In 2011, it increased additional flights on ten routes, adding more than 100,000 seats. About 63,000 of these seats were between the country's capital and Ho Chi Minh City. This represented a remarkable 41 % increase against normal days. In 2013, the carrier added an extra 174,000 seats during the celebratory period, of which 82,000 seats were on the trunk route between its primary hubs.
