Find HK Express(UO) flights from Seoul to Hong Kong

At the moment, you can catch a nonstop flight from Seoul to Hong Kong with the following airlines, including: HK Express T'Way Air Hong Kong Airlines Cathay Pacific Air Premia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes around 4 hours 8 minutes to fly from Seoul (SEL) to Hong Kong (HKG).

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 Hong Kong 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 66 flight per week flying from Seoul to Hong Kong. You can check the weekly schedule for popular airlines on this route below: Hong Kong Airlines: S/M/T/W/T/F/S -- HX629 (14:59)

The cheapest months to fly from Seoul to Hong Kong is October, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Seoul to Hong Kong on December 23, 2025 with HK Express, with prices starting at JPY 8,479.

You can land at any one of the following hubs in Hong Kong, with Incheon International Airport to Hong Kong International Airport (ICN-HKG) is by far the most common option on this route: Hong Kong International Airport (HKG).

The time difference between Hong Kong and Seoul is 1h.

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.