$339 Cheap Flights from Seattle (SEA) to Taipei (TPE)

View $339 flight on Mon, Aug 25, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Taoyuan International Airport (TPE)

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Cheap Flights from Seattle to Taipei (SEA-TPE)

Prices were available within the past 7 days and start at $339 for one-way flights and $622 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$622 Roundtrip, just found
$622
Roundtrip
just found
Select Asiana Airlines flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $622 just found
Delta
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$674 Roundtrip, just found
$674
Roundtrip
just found
Select Delta flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $674 just found
United
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$689 Roundtrip, just found
$689
Roundtrip
just found
Select United flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $689 just found
Korean Air
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$693 Roundtrip, just found
$693
Roundtrip
just found
Select Korean Air flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $693 just found
Japan Airlines
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$716 Roundtrip, just found
$716
Roundtrip
just found
Select Japan Airlines flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $716 just found
Philippine Airlines
Wed, Feb 4 - Tue, Feb 24
SEA
Seattle
TPE
Taipei
$720 Roundtrip, found 1 hour ago
$720
Roundtrip
found 1 hour ago
Select Philippine Airlines flight, departing Wed, Feb 4 from Seattle to Taipei, returning Tue, Feb 24, priced at $720 found 1 hour ago
China Airlines
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$723 Roundtrip, just found
$723
Roundtrip
just found
Select China Airlines flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $723 just found
Japan Airlines
Wed, Sep 3 - Mon, Sep 15
SEA
Seattle
TSA
Taipei
$724 Roundtrip, found 4 hours ago
$724
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Wed, Sep 3 from Seattle to Taipei, returning Mon, Sep 15, priced at $724 found 4 hours ago
All Nippon Airways
Thu, Apr 9 - Thu, Apr 23
SEA
Seattle
TSA
Taipei
$726 Roundtrip, found 1 hour ago
$726
Roundtrip
found 1 hour ago
Select All Nippon Airways flight, departing Thu, Apr 9 from Seattle to Taipei, returning Thu, Apr 23, priced at $726 found 1 hour ago
STARLUX Airlines
Mon, Aug 25 - Mon, Sep 8
SEA
Seattle
TPE
Taipei
$802 Roundtrip, just found
$802
Roundtrip
just found
Select STARLUX Airlines flight, departing Mon, Aug 25 from Seattle to Taipei, returning Mon, Sep 8, priced at $802 just found

Find the cheapest month to fly from Seattle (SEA) to Taipei (TPE)

September is typically the cheapest month to fly

From $621 - $882 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Taipei (TPE)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Taoyuan Intl.
Airlines serving
Air Canada, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Hainan Airlines, Hawaiian Airlines, Japan Airlines, Korean Air, Malaysia Airlines, Philippine Airlines, STARLUX Airlines, Singapore Airlines, Turkish Airlines, United
Roundtrip price
$621
Distance
6062 mi
Average flight time
27 hours 14 mins

Seattle to Taipei Flights

The cheapest times to fly from Seattle to Taipei

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Taipei are during the month of August. You can find some of the cheapest flights from Seattle to Taipei with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Taipei

Sunday is one of the best days to book for cheap flights from Seattle to Taipei: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Taipei

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Taipei in 2025. You can also book with separate airlines for your outbound and return journeys, from $339 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Taipei flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Taipei airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE) cost?
Score cheap return flights from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE) starting at $675. Book a seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving SEA on August 6 2025 and touching down at TPE. The price was last updated on July 12 2025 and has not changed since.
What is the cheapest month to fly from SEA to TPE?
The cheapest flights from SEA to TPE are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
Enjoy a seamless journey to Taoyuan Intl. Airport (TPE). 4 carriers offer nonstop flights from Seattle - Tacoma Intl. Airport (SEA), including:

  • EVA Air
  • Delta Air Lines
  • China Airlines

What is the cheapest airline that flies from SEA to TPE?
Right now, the cheapest airline operating one-way flights from SEA to TPE is Delta. You can take off on this route from $367. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on October 1 2025. Prices were last updated on July 12 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
With an average of 3 direct flights departing from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE) daily, you'll be soaring through the skies in no time.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
More travelers fly between SEA and TPE at 12 AM than at any other time. Looking for a quieter experience? Consider flying outside peak hours and there's a chance you'll save on your fare as well.
What day of the week has the most flights from SEA to TPE?
If you travel on a Saturday, you'll get the widest range of choices for flights from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
Catch the earliest flight at around 12:05AM UTC-8, heading out of Seattle - Tacoma Intl. Airport (SEA). You'll be traveling for approximately 13h 10m, coming in to land at Taoyuan Intl. Airport (TPE) at approximately 5:15AM UTC+8.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
It takes about 13 hours and 17 minutes to travel the 6,100 mi from SEA to TPE.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
Select a flight from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Taipei from Seattle - Tacoma Intl. Airport (SEA)?
If you've booked a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Taipei, Taoyuan Intl. Airport (TPE) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE) last-minute?
Booking your plane ticket from SEA to TPE shortly before your getaway is typically more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a SEA to TPE flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to TPE flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Taoyuan Intl. Airport (TPE)?
If you booked your SEA to TPE flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.