Cheap flights from Seattle to Shanghai from $373

The cheapest month to fly to Shanghai from Seattle is in April. Flight prices, which tend to average around $749, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Shanghai, with average flight prices from Seattle averaging around $800.

The cheapest day to depart on your flight to Shanghai is on a Wednesday when prices can be found for as low as $988. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Shanghai for around $1,176.

Our data shows that the cheapest Seattle to Shanghai flights are usually those with departure times at noon. Our users have found flights to Shanghai at noon for as low as $989. Flights in the afternoon are often more expensive with an average ticket price of $1,085.

Fly from Seattle/Tacoma Intl to Shanghai Pu Dong for the best Seattle/Tacoma Intl - Shanghai flight prices

You are more likely to see cheaper flights to Shanghai from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Shanghai for around $1,064 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shanghai from Seattle for as low as $825 on momondo.

There are 3 cabin classes available to choose from on Seattle to Shanghai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Cathay Pacific, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Shanghai

Delta, Asiana Airlines and Cathay Pacific are the top three most popular airlines that fly to Shanghai from Seattle according to our data. Delta is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Shanghai. Keep in mind that there are 9 different airlines that fly to Shanghai on a routine basis, so you have a few additional options to choose from.

1 flights are operational daily from Seattle to Shanghai as of November 2026. The most popular departure time for this route is 2:00PM, with 100% of flights per day taking off in the afternoon.

As of November 2026, 7 flights take off from Seattle and land in Shanghai each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.