Cheapest airlines flights from Chengdu to Seattle

You can choose from 1 airlines that fly from Chengdu to Seattle, including Air China, Cathay Pacific has lowest fares on this route.
Air China logo Air China
Airlines are determined based on actual purchased flight tickets from Chengdu to Seattle according to previous 12 months data from Trip.com.

Search cheap flights from Chengdu to Seattle in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$505, and round-trip tickets start at US$944.

Displayed flight fares from Chengdu to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Chengdu to Seattle Flight Details

The distance between Chengdu and Seattle is about 10,184.97 km. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is October.

Cheapest one-way flight priceUS$505
Cheapest return ticket priceUS$944
Cheapest monthOctober
Peak season for travelJanuary
Flight distance10,184.97 km
Popular airlineAir China
Flight statistics for the Chengdu–Seattle route are based on aggregated booking data from Trip.com over the past 12 months.

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.
  • 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.
  • 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.
  • 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.
  • The cheapest months to fly from Chengdu to Seattle is October, when demand for travel is lower.
  • 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.
  • 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).
  • The time difference between Seattle and Chengdu is 16h.
  • 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.

Trip.com Airline Insights on Flights from Chengdu to Seattle

Which airline offers the cheapest direct flights from Chengdu to Seattle?

Data is based on the average price of all nonstop flights from Chengdu to Seattle on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Hainan Airlines provides the lowest-priced direct flights from Chengdu to Seattle, with fares starting at US$512.

US$330
US$512
US$695
US$877
US$1,059
Hainan Airlines
US$512
Hainan Airlines
Cathay Pacific
US$577
Cathay Pacific
Asiana Airlines
US$583
Asiana Airlines
Air China
US$680
Air China
EVA Air
US$834
EVA Air
Qatar Airways
US$1,059
Qatar Airways

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.