You’ve searched for flights from Hong Kong to Hanoi. We've gone through all 31 flights that go to or via Hanoi every week, to help you find the cheapest flight. Thai Airways International usually has the best-value flights from Hong Kong, but make sure you compare all your options to get the cheapest flight possible.
When you fly 846 km from Hong Kong to Hanoi, you can choose from six airlines. Flights are most expensive during high season, and you can expect accommodation prices to be higher then too. Last-minute deals do crop up, but it's best to book in advance to avoid disappointment.
To sort cheap flights to Hanoi, it's best to start searching for flights by month, as this will show you when prices are at their lowest. Keep an eye on Vietnam Airlines too, as they're the most popular airline for flying from Hong Kong to Hanoi.
Flights from Hong Kong to Hanoi normally take 9 hrs 15 mins. Make sure you check what refreshments or meals are included, so you can plan your journey. Before you book, why not check out our hotel and car hire options? We have some hotels close to the airport – handy if you're arriving late at night, or flying back very early.