The best month to arrive at Hanoi is May and the most expensive month to fly is October. (Average prices, based on 1520 datapoints.)
The best day to arrive at Hanoi is Sunday and it would be best to avoid Saturday, as prices are on average 59.02% higher than on Sunday. (Average prices, based on 1708 datapoints.)
The cheapest airline flying to Hanoi is AirAsia. They are 60% cheaper than China Airlines. (Average prices, based on 1631 datapoints.)
At Hanoi the most flights depart around 19:00. (Hourly flights, based on 1863 datapoints.)
From Hanoi it is on average the cheapest to fly to Bangkok and to Ho Chi Minh City. (Average prices, based on 786 datapoints.)
From Hanoi most of the flights depart to Ho Chi Minh City, second best connected from Hanoi is Bangkok. (Daily flights, based on 171 datapoints.)