Cheap flights from Hanoi to Seoul from $145

The cheapest month to fly to Incheon Intl Airport from Hanoi is in September. Flight prices, which tend to average around $272, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of September, then departing from Hanoi during the month May is also very affordable. Most momondo users find prices during this month for around $307.

The cheapest day to depart from Hanoi to Incheon Intl Airport is on a Thursday when prices can be found for as low as $654. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,031. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

In the evening is the cheapest time of day to fly from Hanoi to Incheon Intl Airport when you can find flight prices for as low as $674. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,244 on average. Flights to Incheon Intl Airport from Hanoi in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Hanoi Noibai to Incheon Intl for the best Hanoi Noibai - Incheon Intl flight prices

You are more likely to see cheaper flights to Incheon Intl Airport from Hanoi when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Hanoi for as low as $223 on momondo.

There are 3 cabin classes available to choose from on Hanoi to Incheon Intl Airport 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 19% of flights between Hanoi and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 112 minutes.

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

Tuesday 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, Brit Mediterranean have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

16 flights are operational daily from Hanoi to Incheon Intl Airport as of June 2026. The most popular departure time for this route is 11:00PM, with 60% of flights per day taking off in the evening.

The number of flights available between Hanoi and Incheon Intl Airport is 116 per week as of June 2026. The most frequent departure day is Sun, with 16% of weekly flights leaving on this day.