Cheap flights from Bangkok to Hanoi from $142

The cheapest month to fly to Hanoi from Bangkok is in August. Flight prices, which tend to average around $128, are often lower during this time because this is during the off-season. If you aren’t able to travel to Hanoi during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $142.

The cheapest day to depart from Bangkok to Hanoi is on a Tuesday. Travellers who choose to depart for Hanoi on a Tuesday will often find tickets for as low as $203. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Hanoi for around $310.

According to our data, the cheapest time of day to fly to Hanoi is in the afternoon. momondo users have found flights departing from Bangkok to Hanoi in the afternoon for as low as $208. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at midday are often more expensive, with an average ticket price of $363.

Fly from Bangkok Suvarnabhumi to Hanoi Noibai for the best Bangkok - Hanoi Noibai flight prices

You are more likely to see cheaper flights to Hanoi from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around $223 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from Bangkok for as low as $182 on momondo.

There are 3 cabin classes available to choose from on Bangkok to Hanoi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 27% of flights between Bangkok and Hanoi have experienced a delay on any given week. The average delay length over the past 12 months has been 90 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Thai Airways have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

28 flights are operational daily from Bangkok to Hanoi as of June 2026. The most popular departure time for this route is 15:00, with 40% of flights per day taking off in the afternoon.

197 flights are operational weekly from Bangkok to Hanoi as of June 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.