Cheap flights from Bangkok to Hanoi from C$ 99

The cheapest month to fly to Hanoi from Bangkok is in August. Flight prices, which tend to average around C$ 176, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in August, then September is your next best option. Flight prices from Bangkok to Hanoi during September average around C$ 180.

On average, the least expensive day to fly to Hanoi from Bangkok is on a Thursday. momondo users have found tickets for Thursday departures for as low as C$ 174. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Bangkok to Hanoi on a Sunday will generally be more expensive and average around C$ 1,096. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 C$ 225. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Hanoi is in the evening when prices are around C$ 257.

Fly from Bangkok Don Mueang Intl 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 C$ 204 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from Bangkok for as low as C$ 178 on momondo.

There are 3 cabin classes available to choose from on Bangkok to Hanoi Noibai 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 26% 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 92 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.

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

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

The number of flights available between Bangkok and Hanoi is 36 per day as of March 2026. The most frequent departure time is 3:00p.m., with 50% of daily flights leaving in the afternoon.

253 flights are operational weekly from Bangkok to Hanoi as of March 2026. The most popular departure day for this route is Fri, with 15% of flights per week taking off on this day.