The cost of a flight to Chengdu during the summer months varies significantly depending on the departure city and booking time, but it is generally considered one of the most affordable times to visit from the United States. July is frequently cited as the cheapest month to fly, with average fares from the U.S. around $536, while August also offers competitive rates with average prices near $446. One-way flights from major hubs like San Francisco or Los Angeles can be found for as low as $439 to $502 during the late summer period. For those looking at round-trip options, prices typically start around $542, although premium or last-minute bookings can exceed $1,300. Overall, while June is the most popular summer month for travel to Chengdu with average ticket prices around $364, savvy travelers can find excellent deals by flying in July or August, which are often considered part of the "off-season" for airfare.