Cheap flights from Taipei City Taiwan Taoyuan Intl Airport to Seattle from $355

In general, April is the cheapest month to fly from Taipei City Taiwan Taoyuan Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $706. If you don’t want to visit Seattle in April, then you should wait until October to fly from Taipei City Taiwan Taoyuan Intl Airport, when ticket prices are also cheap, with an average price of $707.

On average, the least expensive day to fly to Seattle from Taipei City Taiwan Taoyuan Intl Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $835. 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 Taiwan Taoyuan Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $995.

Flying to Seattle from Taipei City Taiwan Taoyuan Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $883 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $952. Departure times in the evening 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 Taiwan Taoyuan Intl - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Taipei City Taiwan Taoyuan Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $824 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 Taiwan Taoyuan Intl Airport for as low as $741 on momondo.

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

United Airlines and Philippine Airlines are the most popular carriers operating from Taipei City Taiwan Taoyuan Intl to Seattle/Tacoma Intl

Delta, EVA Air and China Airlines are the top three most popular airlines that fly to Seattle from Taipei City Taiwan Taoyuan Intl Airport according to our data. Delta is the first choice among our users, with 49% 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 131 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, Delta have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

As of August 2026, there are 4 flights per day flying from Taipei City Taiwan Taoyuan Intl Airport to Seattle. The most common time of day flights depart is 11:00PM, with 89% of flights taking off in the evening.

32 flights are operational weekly from Taipei City Taiwan Taoyuan Intl Airport to Seattle as of August 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.