Cheap flights from Hanoi to Bangkok from $79

If you aren’t able to travel during the month of May, then book flights to Bangkok from Hanoi during April instead. Flights to Bangkok in April, while not as cheap as those in May, still average around $77.

On average, the least expensive day to fly to Bangkok from Hanoi is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $184. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Hanoi to Bangkok on a Saturday will generally be more expensive and average around $260. 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 Bangkok is in the morning. momondo users have found flights departing from Hanoi to Bangkok in the morning for as low as $167. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $209. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Bangkok from Hanoi when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $169 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Hanoi for as low as $122 on momondo.

There are 4 cabin classes available to choose from on Hanoi to Bangkok flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

VietJet Air and Thai Vietjet Air are the most popular carriers operating from Hanoi Noibai to Bangkok

Thai AirAsia, VietJet Air and Vietnam Airlines are the top three most popular airlines that fly to Bangkok from Hanoi according to our data. Thai AirAsia is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 5 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Hanoi and Bangkok have experienced a delay on any given week. The average delay length over the past 12 months has been 91 minutes.

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

Monday is statistically the day of the week which experiences the fewest number of 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 have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

As of July 2026, there are 31 flights per day flying from Hanoi to Bangkok. The most common time of day flights depart is 10:00AM, with 35% of flights taking off at noon.

The number of flights available between Hanoi and Bangkok is 222 per week as of July 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.