Cheap flights from Hong Kong to Seattle from $428

In general, November is the cheapest month to fly from Hong Kong to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $663. If you don’t want to visit Seattle in November, then you should wait until January to fly from Hong Kong, when ticket prices are also cheap, with an average price of $668.

On average, the least expensive day to fly to Seattle from Hong Kong is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,094. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Hong Kong because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,587.

Fly from Hong Kong Intl to Seattle/Tacoma Intl for the best Hong Kong Intl - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $789 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Hong Kong for as low as $629 on momondo.

There are 2 cabin classes available to choose from on Hong Kong to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of August 2026, prices for Hong Kong to Seattle flights are approximately 47% cheaper when compared to flights at the same time last year.

China Airlines and United Airlines are the most popular carriers operating from Hong Kong Intl to Seattle/Tacoma Intl

EVA Air, Cathay Pacific and Philippine Airlines are the top three most popular airlines that fly to Seattle from Hong Kong according to our data. EVA Air is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Hong Kong and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Cathay Pacific have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Taipei City (TPE) offer the lowest average round-trip price of $638.

Flights connecting via Incheon (ICN) have the shortest average one-way travel time: 16h 45m.

Incheon (ICN) has the shortest average layover time for this route: 3h 35m.

The number of flights available between Hong Kong and Seattle is 2 per day as of August 2026. The most frequent departure time is 1:00PM, with 100% of daily flights leaving in the afternoon.

As of August 2026, 15 flights take off from Hong Kong and land in Seattle each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.