Cheap flights from Hanoi to Seoul from $109

The cheapest month to fly to Incheon Intl Airport from Hanoi is in September. Flight prices, which tend to average around $288, 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 October is also very affordable. Most momondo users find prices during this month for around $289.

The cheapest day to depart from Hanoi to Incheon Intl Airport is on a Thursday when prices can be found for as low as $421. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,071. 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 $387. 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 at noon when prices are $881 on average. Flights to Incheon Intl Airport from Hanoi at noon 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 $359 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 $180 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.

VietJet Air, Shandong Airlines, and Jeju Air are the most popular carriers operating from Hanoi Noibai to Incheon Intl

VietJet Air, Asiana Airlines and Vietnam Airlines are the top three most popular airlines that fly to Incheon Intl Airport from Hanoi according to our data. VietJet Air is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 3 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% 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 103 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.

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, Jeju Air 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.

22 flights are operational daily from Hanoi to Incheon Intl Airport as of October 2026. The most popular departure time for this route is 11:00PM, with 57% of flights per day taking off in the evening.

The number of flights available between Hanoi and Incheon Intl Airport is 158 per week as of October 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.