Cheap flights from Siem Reap to Hanoi from ₹ 10,147

In general, September is the cheapest month to fly from Siem Reap to Hanoi. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 13,115. If you don’t want to visit Hanoi in September, then you should wait until March to fly from Siem Reap, when ticket prices are also cheap, with an average price of ₹ 14,264.

Fly from Siem Reap–Angkor Intl to Hanoi Noibai for the best Siem Reap–Angkor Intl - Hanoi Noibai flight prices

You are more likely to see cheaper flights to Hanoi from Siem Reap when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around ₹ 17,415 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 Siem Reap for as low as ₹ 13,211 on momondo.

There is only 1 cabin class available to choose from on Siem Reap 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 26% of flights between Siem Reap and Hanoi have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

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

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

According to our data, Vietnam Airlines have had the fewest delays on this route over the last 12 months, with about 26% of their flights experiencing any sort of delay.

As of September 2026, there are 2 flights per day flying from Siem Reap to Hanoi. The most common time of day flights depart is 18:00, with 100% of flights taking off in the evening.

The number of flights available between Siem Reap and Hanoi is 20 per week as of September 2026. The most frequent departure day is Tue, with 20% of weekly flights leaving on this day.