To save on the cost of your flight from St Louis to Hong Kong, book at least 37 days before your planned departure. Booking around this time can save you about 14% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $653 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $734.
The best pricing can be found in the month of September. Prices to Hong Kong from St Louis average $657. You can even find prices in September for less than $657, as users have found deals to Hong Kong from as low as $502. The month of July appears to be one of the more expensive times to travel to Hong Kong from St Louis. Flying in the targeted month can save you up to 21%.