Find Jeju Air(7C) flights from Seoul to Hanoi

At the moment, you can catch a nonstop flight from Seoul to Hanoi with the following airlines, including: VietJet Air Parata Air Vietnam Airlines Sun PhuQuoc Airways Jeju Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 4 hours 44 minutes to fly from Seoul to Hanoi.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seoul to Hanoi is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 53 flight per week flying from Seoul to Hanoi. You can check the weekly schedule for popular airlines on this route below: Vietnam Airlines: S/M/T/W/T/F/S -- VN415 (19:17) Vietnam Airlines: S/M/T/W/T/F/S -- VN3415 (08:21)

The cheapest months to fly from Seoul to Hanoi is September, when demand for travel is lower.

After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Seoul to Hanoi on October 20, 2026 with VietJet Air, with prices starting at US$127.

You can land at any one of the following hubs in Hanoi: Noi Bai International Airport (HAN). Flying from Incheon International Airport to Noi Bai International Airport (ICN-HAN) is by far the most common option on this route.

The time difference between Hanoi and Seoul is 2h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.