Find Delta Air Lines(DL) flights from St. Louis to Hong Kong

At the moment, several airlines serve connecting flights from St. Louis to Hong Kong, including: United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from St. Louis 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.

The cheapest months to fly from St. Louis to Hong Kong is November, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from St. Louis to Hong Kong on December 28, 2025 with United Airlines, with prices starting at TRY 30,143.

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

The time difference between Hong Kong and St. Louis is 14h.

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.