Cheap Flights from Chengdu to Seattle from US$505

Frequently Asked Questions

• What are the cheapest flights from Chengdu to Seattle (CTU-SEA)?

  Based on Trip.com data, Cathay Pacific offers one-way fares as low as US$505 on Cheapest nonstop routes (e.g. TFU to SEA on Sun, Jun 21), while Asiana Airlines offers Cheapest nonstop round-trips from US$944 departing on Sat, Jun 20 and returning on Sat, Jun 27.

• Which airlines offer direct flights from Chengdu to Seattle?

  At the moment, you can catch a nonstop flight from Chengdu to Seattle with the following airlines, including: Air China Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Chengdu to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chengdu to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Chengdu to Seattle?

  To find best deals on flights from Chengdu to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Jun 21, with one-way flights priced at just US$505.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Cathay Pacific.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Chengdu (CTU) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Chengdu to Seattle is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chengdu to Seattle on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Chengdu to Seattle on June 14, 2026 with Cathay Pacific, with prices starting at US$513.

• Which airports can I fly to for Seattle from Chengdu?

  You can land at any one of the following hubs in Seattle, with Chengdu Tianfu International Airport to Seattle-Tacoma International Airport (TFU-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).

• Is there any time difference between Chengdu and Seattle?

  The time difference between Seattle and Chengdu is 16h.

• How do I change or cancel my ticket from Chengdu to Seattle?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.