4 hr 5 min is the shortest flight time from Hong Kong to Tokyo.

The cheapest days to fly are usually in May. Typical prices range from $205 to $290.

The best round-trip deal recently found on Google Flights from Hong Kong to Tokyo was with Hong Kong Express from $208. The best one-way deal was with Hong Kong Express from $108.

There are direct flights from Hong Kong to Tokyo on a daily basis.

Hong Kong Express, Cathay Pacific, JAL, ANA, Hong Kong Airlines and Greater Bay Airlines fly direct from Hong Kong to Tokyo.

The cheapest round-trip flight from Hong Kong to Tokyo starts at $208 from Thu, Aug 29 to Wed, Sep 4. The cheapest one-way flight starts at $108 and departs on Wed, Aug 28.

Tokyo is busy year-round. The climate is humid subtropical, with hot summers and mild winters. Popular events are New Year's Day, when shrines are quite crowded; cherry blossom festivals (Apr) throughout the city; the Sanja Matsuri (May), with parades of portable shrines; the Sumida River Fireworks Festival (Jul); the festivals of Obon (Aug), a Buddhist holiday that celebrates ancestors; and Awa Odori (Aug), with parades around Koenji Station.

It's easy to use Google Flights to find the cheapest days to fly from Hong Kong to Tokyo.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.