Cheap flights from Taipei City to Seattle from $431

In general, August is the cheapest month to fly from Taipei City to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $365. If you don’t want to visit Seattle in August, then you should wait until July to fly from Taipei City, when ticket prices are also cheap, with an average price of $367.

On average, the least expensive day to fly to Seattle from Taipei City is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $848. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Taipei City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $966.

Flying to Seattle from Taipei City in the evening is the least expensive time of day to depart. momondo users have found prices as low as $846 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $925. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Taipei City Taiwan Taoyuan Intl to Seattle/Tacoma Intl for the best Taipei City - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Taipei City when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $805 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Taipei City for as low as $754 on momondo.

Delta, United Airlines, and ANA are the most popular carriers operating from Taipei City to Seattle/Tacoma Intl

Delta, STARLUX Airlines and EVA Air are the top three most popular airlines that fly to Seattle from Taipei City according to our data. Delta is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Taipei City and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 121 minutes.

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

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

According to our data, STARLUX Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of April 2026, 5 flights take off from Taipei City and land in Seattle each day. The most common flight departure time for this route is 11:00PM, with 88% of daily flights taking off in the evening.

As of April 2026, there are 39 flights per week flying from Taipei City to Seattle. The most common day of the week flights depart is Tue, with 18% of flights taking off on this day.