Cheap flights from Seattle to Taiwan from $378

The cheapest month to fly to Taiwan from Seattle is in January. Flight prices, which tend to average around $372, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Taiwan, with average flight prices from Seattle averaging around $379.

The cheapest day to depart from Seattle to Taiwan is on a Monday when prices can be found for as low as $850. On the other hand, Saturday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $960.

The cheapest time of day to fly to Taiwan is in the afternoon when flights can be purchased for as low as $734. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $909 on average. Flights to Taiwan from Seattle in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Taiwan from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Taiwan for around $888 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Taiwan from Seattle for as low as $739 on momondo.

There are 4 cabin classes available to choose from on Seattle to Taiwan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

STARLUX Airlines, EVA Air and Delta are the top three most popular airlines that fly to Taiwan from Seattle according to our data. STARLUX Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Taiwan. Keep in mind that there are 9 different airlines that fly to Taiwan on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Seattle and Taiwan have experienced a delay on any given week. The average delay length over the past 12 months has been 183 minutes.

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

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday 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 9% of their flights experiencing any sort of delay.

As of May 2026, 6 flights take off from Seattle and land in Taiwan each day. The most common flight departure time for this route is 1:00AM, with 86% of daily flights taking off in the morning.

The number of flights available between Seattle and Taiwan is 44 per week as of May 2026. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.