Cheap Flights from Hong Kong to Seattle from $351

Frequently Asked Questions

• What are the cheapest flights from Hong Kong to Seattle (HKG-SEA)?

  Based on Trip.com data, Air Canada offers one-way fares as low as $351 on Cheapest nonstop routes (e.g. HKG to SEA on Thu, Oct 1), while United Airlines offers Cheapest nonstop round-trips from $697 departing on Wed, Nov 4 and returning on Mon, Nov 9.

• Which airlines offer direct flights from Hong Kong to Seattle?

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

• How long does it take to fly from Hong Kong (HKG) to Seattle (SEA) and what is the distance?

  It takes around 11 hours 45 minutes to fly from Hong Kong (HKG) to Seattle (SEA).

• When is the best time to book flights from Hong Kong 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 Hong Kong 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 many flights are there per week from Hong Kong to Seattle?

  Based on Trip.com data in the past 4 weeks, there is 5 flight per week flying from Hong Kong to Seattle. You can check the weekly schedule for popular airlines on this route below: Cathay Pacific: S/M/T/W/T/F/S -- CX852 (13:37)

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

  To find best deals on flights from Hong Kong 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 Thu, Oct 1, with one-way flights priced at just $351.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
  · 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 July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Hong Kong (HKG) to Seattle (SEA) the cheapest?

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

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

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Hong Kong to Seattle on September 18, 2026 with Air Canada, with prices starting at $290.

• Which airports can I fly into Seattle from Hong Kong?

  You can arrive at any of the following airports in Seattle: Seattle-Tacoma International Airport (SEA), King County (Boeing Field) International Airport (BFI), and Kenmore Air Harbor Seaplane Base (LKE). Flights from Hong Kong International Airport to Seattle-Tacoma International Airport (HKG-SEA) are by far the most popular option for this route.

• Is there any time difference between Hong Kong and Seattle?

  The time difference between Seattle and Hong Kong is 16h.

• How do I change or cancel my ticket from Hong Kong 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.

• What is the average cost of a one-way flight from Hong Kong to Seattle?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Hong Kong to Seattle is $588. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Hong Kong to Seattle?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Hong Kong to Seattle is $1,170. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Hong Kong to Seattle on Trip.com?

  Enter Hong Kong and Seattle, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Hong Kong to Seattle route?

  Jetstar Japanare the most popular budget airlines flying from Hong Kong to Seattle. Check baggage, seat and payment fees before comparing the final price.