There is not enough information available to first time travelers to Ha Noi either on Vietnam Airlines or at Noibai airport. Thus, travelers are not aware of their options for getting to Hanoi from the airport, what such a trip should cost, and who are reliable drivers.
Be aware of the denomination of Vietnam Dongs which consist of too many zero (0). Some unscrupulous drivers try to rip you off by adding one more zero to your fare OR cheating that your VND500,000 note is only VND50,000. i.e overcharges you 10 times higher than actual cost.
Tourists are prey to pickpockets when they travel to the market.