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Cheap Flights from Hong Kong to Seattle

What to know about flights from Hong Kong to Seattle?

The distance between Hong Kong and Seattle is approximately 10,423.89km. The average flight time between Hong Kong and Seattle is 11 hours 40 minutes. According to Trip.com data, travel demand is highest in January. September is generally the cheapest month to book.

Cheapest one-way
S$ 462
Philippine Airlines Philippine Airlines HKG-SEA 23h 25m · 1 stop Sun, Oct 25
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Cheapest return
S$ 867
Philippine Airlines Philippine Airlines HKG-SEA 21h 15m · 2 stops Fri, Nov 13 - Thu, Nov 19
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Recommended airlines
Philippine Airlines Philippine Airlines Cheapest · From S$ 462 Eva Air Eva Air Most booked
Best time to book
October
Cheapest
January
Peak season for travel
Route details
10,423.89km
Flight distance
11h 40m
Average flight time

Explore the cheapest one-way and round-trip flights from Hong Kong to Seattle over the next 90 days, with one-way fares from S$ 462 and round-trip from S$ 867. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        HKG 13:25
        11h 40m
        Direct
        SEA 10:05
        Hong Kong - Seattle | Thu, Oct 15 | Cathay Pacific
        SEA 11:45
        14h
        Direct
        HKG 16:45
        Seattle - Hong Kong | Mon, Oct 19 | Cathay Pacific
        S$ 1,223 S$ 1,610
        24% off
        24% off
        S$ 1,610 S$ 1,223
      • HKG 13:25
        11h 40m
        Direct
        SEA 10:05
        Hong Kong - Seattle | Tue, Oct 13 | Cathay Pacific
        SEA 11:45
        14h
        Direct
        HKG 16:45
        Seattle - Hong Kong | Tue, Oct 20 | Cathay Pacific
        S$ 1,223 S$ 1,610
        24% off
        24% off
        S$ 1,610 S$ 1,223
      • HKG 13:30
        21h 15m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Fri, Nov 13 | Philippine Airlines
        SEA 21:30
        32h 25m
        1 stop
        HKG 21:55
        Seattle - Hong Kong | Thu, Nov 19 | Philippine Airlines
        S$ 867 S$ 1,610
        46% off
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Thu, Nov 12 | Philippine Airlines
        SEA 21:30
        28h 20m
        1 stop
        HKG 17:50
        Seattle - Hong Kong | Mon, Nov 16 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Wed, Nov 18 | Philippine Airlines
        SEA 21:30
        28h 20m
        1 stop
        HKG 17:50
        Seattle - Hong Kong | Sun, Nov 22 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Mon, Nov 16 | Philippine Airlines
        SEA 21:30
        32h 25m
        1 stop
        HKG 21:55
        Seattle - Hong Kong | Thu, Nov 19 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 11:25
        23h 20m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Sun, Nov 22 | Philippine Airlines
        SEA 21:30
        28h 20m
        1 stop
        HKG 17:50
        Seattle - Hong Kong | Sun, Nov 29 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 22:55
        35h 50m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Sat, Nov 21 | Philippine Airlines
        SEA 21:30
        32h 25m
        1 stop
        HKG 21:55
        Seattle - Hong Kong | Mon, Nov 23 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Fri, Nov 20 | Philippine Airlines
        SEA 21:30
        20h 35m
        1 stop
        HKG 10:05
        Seattle - Hong Kong | Mon, Nov 23 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Mon, Nov 9 | Philippine Airlines
        SEA 21:30
        20h 35m
        1 stop
        HKG 10:05
        Seattle - Hong Kong | Mon, Nov 16 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Wed, Nov 4 | Philippine Airlines
        SEA 21:30
        32h 25m
        1 stop
        HKG 21:55
        Seattle - Hong Kong | Sun, Nov 8 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 22:55
        35h 50m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Tue, Nov 3 | Philippine Airlines
        SEA 21:30
        32h 25m
        1 stop
        HKG 21:55
        Seattle - Hong Kong | Sun, Nov 8 | Philippine Airlines
        S$ 867
        46% off
        S$ 1,610 S$ 867
      • HKG 13:00
        17h 25m
        1 stop
        SEA 14:00
        Hong Kong - Seattle | Wed, Oct 7 | Normal Airline
        SEA 15:00
        6h
        Direct
        HKG 16:00
        Seattle - Hong Kong | Fri, Oct 9 | Normal Airline
        Find more flights
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      • Cheapest nonstop
        HKG 13:05
        11h 40m
        Direct
        SEA 09:45
        Hong Kong - Seattle | Tue, Oct 27 | American Airlines
        S$ 818 S$ 1,077
        24% off
        24% off
        S$ 1,077 S$ 818
      • HKG 13:05
        11h 40m
        Direct
        SEA 08:45
        Hong Kong - Seattle | Thu, Nov 26 | American Airlines
        S$ 818 S$ 1,077
        24% off
        24% off
        S$ 1,077 S$ 818
      • HKG 11:10
        23h 25m
        1 stop
        SEA 19:35
        Hong Kong - Seattle | Sun, Oct 25 | Philippine Airlines
        S$ 462 S$ 1,077
        56% off
        56% off
        S$ 1,077 S$ 462
      • HKG 22:55
        35h 50m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Sun, Nov 15 | Philippine Airlines
        S$ 501
        53% off
        S$ 1,077 S$ 501
      • HKG 18:10
        33h 41m
        1 stop
        SEA 12:51
        Hong Kong - Seattle | Fri, Oct 30 | Delta Air Lines
        S$ 503
        53% off
        S$ 1,077 S$ 503
      • HKG 17:55
        34h 19m
        1 stop
        SEA 13:14
        Hong Kong - Seattle | Wed, Oct 21 | Delta Air Lines
        S$ 504
        53% off
        S$ 1,077 S$ 504
      • HKG 13:30
        21h 15m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Thu, Nov 19 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 13:30
        21h 15m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Mon, Nov 9 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 13:30
        21h 15m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Wed, Nov 4 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 11:25
        23h 20m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Sun, Nov 8 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 19:05
        15h 40m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Fri, Nov 6 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 22:55
        35h 50m
        1 stop
        SEA 18:45
        Hong Kong - Seattle | Thu, Nov 5 | Philippine Airlines
        S$ 505
        53% off
        S$ 1,077 S$ 505
      • HKG 13:00
        17h 25m
        1 stop
        SEA 14:00
        Hong Kong - Seattle | Wed, Oct 7 | Normal Airline
        Find more flights
        Find more flights

Flight.News
Over the past 7 days, flights from Hong Kong to Seattle have operated an average of 2 times per day, with 20.0% on-time departure rate and 75.0% on-time arrival rate.

Which airlines are the most popular for Hong Kong to Seattle flights?

You can choose from 2 airlines that fly from Hong Kong to Seattle, including Eva Air, Cathay Pacific, Philippine Airlines offers the lowest prices on this route.
Eva Air logo Eva Air
Cathay Pacific logo Cathay Pacific
Airlines are determined based on actual purchased flight tickets from Hong Kong to Seattle according to previous 12 months data from Trip.com.

Trip.com Price Insights on Flights from Hong Kong to Seattle.

What is the cheapest month for one-way flights from Hong Kong to Seattle?

The average price of one-way flights from Hong Kong to Seattle purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Hong Kong to Seattle is October, with an average price of S$ 610, and the most expensive month is August, with an average price of up to S$ 1,036.

S$ 1,036
S$ 823
S$ 610
S$ 397
  • S$ 610
    Oct
  • S$ 651
    Nov
  • S$ 744
    Dec
  • S$ 999
    Jan
  • S$ 674
    Feb
  • S$ 730
    Mar
  • S$ 959
    Apr
  • S$ 720
    May
  • S$ 672
    Jun
  • S$ 851
    Jul
  • S$ 1,036
    Aug
  • S$ 629
    Sep

What is the cheapest month for round-trip flights from Hong Kong to Seattle?

The average price of round-trip flights from Hong Kong to Seattle purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for round-trip flights from Hong Kong to Seattle is October, with an average price of S$ 941, and the most expensive month is August, with an average price of up to S$ 1,720.

S$ 1,720
S$ 1,331
S$ 941
S$ 552
  • S$ 941
    Oct
  • S$ 995
    Nov
  • S$ 1,119
    Dec
  • S$ 1,563
    Jan
  • S$ 1,039
    Feb
  • S$ 1,395
    Mar
  • S$ 1,190
    Apr
  • S$ 1,371
    May
  • S$ 1,271
    Jun
  • S$ 1,525
    Jul
  • S$ 1,720
    Aug
  • S$ 1,165
    Sep

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Hong Kong to Seattle?

    Based on Trip.com data, Philippine Airlines offers Cheapest nonstop one-way flights from S$ 462 (for example, HKG–SEA on Sun, Oct 25). For a Cheapest nonstop return flight, Philippine Airlines offers fares from S$ 867, departing on Fri, Nov 13 and returning on Thu, Nov 19.
  • At the moment, you can catch a direct 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.
  • It takes about 11 hours 40 minutes to fly from Hong Kong (HKG) to Seattle (SEA).
  • 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.
  • On average, 5 direct flights operate each week between Hong Kong and Seattle. See below the schedules of the main airlines serving this route:
    Cathay Pacific: S/M/T/W/-/F/- – CX852 (departure at 14:50)
  • Here are some tips for finding the best flight deals from Hong Kong to Seattle on Trip.com:
    · Be flexible with your travel dates. The cheapest flight is currently on Sun, Oct 25, with one-way fares from just S$ 462.
    · Compare airlines. American Airlines currently offers the lowest fares on this route.
    · Set up a price alert to track fare changes without searching every day.
    · Check Trip.com regularly for flight deals and available promo codes.
    · Avoid peak season or book early. January is generally the busiest month for travel to Seattle.
    · Get exclusive promo codes on the Trip.com app.
  • The cheapest month to book a flight from Hong Kong to Seattle is usually September, when demand is lower.
  • After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Hong Kong to Seattle on October 17, 2026 with Air Canada, with prices starting at S$ 630.
  • Flights to Seattle can arrive at: Seattle-Tacoma International Airport (SEA), King County (Boeing Field) International Airport (BFI) and Kenmore Air Harbor Seaplane Base (LKE). The most common route connects Hong Kong International Airport and Seattle-Tacoma International Airport (HKG–SEA).
  • The time difference between Seattle and Hong Kong is 16h.
  • Tickets can only be changed or cancelled 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Hong Kong to Seattle is S$ 740. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Hong Kong to Seattle is S$ 1,477. The final price depends on the outbound and return dates, airline and fare conditions.
  • 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 traveller details and complete payment to receive your confirmation.
  • Jetstar Japanare the most popular budget airlines flying from Hong Kong to Seattle. Check baggage, seat and payment fees before comparing the final price.

Find Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are the lowest estimated 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 shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate 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.