Find cheap airlines flights from Hong Kong to Seattle

You can choose from 8 airlines that fly from Hong Kong to Seattle, including Air Canada, Philippine Airlines, and EVA Air. Philippine Airlines has lowest fares on this route.
Air Canada logo Air Canada
Philippine Airlines logo Philippine Airlines
EVA Air logo EVA Air
China Airlines logo China Airlines
Hong Kong Airlines logo Hong Kong Airlines
Asiana Airlines logo Asiana Airlines
Japan Airlines logo Japan Airlines
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Hong Kong to Seattle according to previous 12 months data from Trip.com.

Find flight deals from Hong Kong to Seattle for the next 3 months. Book one way flights from $349 or round trip flights from $542.

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

Flight Info | Hong Kong to Seattle

The distance between Hong Kong and Seattle is approximately 10,423.89 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$349
Cheapest round-trip ticket price$542
Off-season for travelOctober
Peak season for travelJuly
Flight distance10,423.89 km
Popular airlineAir Canada
Flight statistics for the Hong Kong–Seattle route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Hong Kong to Seattle

Which month has the cheapest 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 Oct, with an average price of $453; while the month with the highest flight price is usually Aug, with an average price of up to $815.

$815
$634
$453
$272
    Cheapest
  • $729
    Jan
  • $564
    Feb
  • $477
    Mar
  • $589
    Apr
  • $559
    May
  • $571
    Jun
  • $730
    Jul
  • $815
    Aug
  • $479
    Sep
  • $453
    Oct
  • $489
    Nov
  • $559
    Dec

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

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

According to historical data from Trip.com, the lowest prices for flights from Hong Kong to Seattle are found during Oct, with an average price of $728. Conversely, the highest prices are found during Aug, with an average price of up to $1,143.

$1,143
$936
$728
$521
    Cheapest
  • $1,048
    Jan
  • $807
    Feb
  • $908
    Mar
  • $961
    Apr
  • $893
    May
  • $906
    Jun
  • $1,083
    Jul
  • $1,143
    Aug
  • $817
    Sep
  • $728
    Oct
  • $748
    Nov
  • $841
    Dec

What's the cheapest day to fly from Hong Kong to Seattle?

Data is based on the average flight price for each day of the week from Hong Kong to Seattle on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Hong Kong to Seattle is Sun, with average prices lower than on other days. Avoid Thu, as prices are usually highest then.

$786
$732
$678
$623
    Cheapest
  • $723
    Mon
  • $712
    Tue
  • $709
    Wed
  • $786
    Thu
  • $781
    Fri
  • $702
    Sat
  • $677
    Sun

Frequently Asked Questions

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

    Based on Trip.com data, Philippine Airlines offers one-way fares as low as $349 on Cheapest nonstop routes (e.g. HKG to SEA on Tue, Mar 17), while Philippine Airlines offers Cheapest nonstop round-trips from $542 departing on Fri, Mar 20 and returning on Tue, Mar 24.
  • At the moment, you can catch a nonstop flight from Hong Kong to Seattle with the following airlines, including: Hong Kong Airlines 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 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.
  • 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 Tue, Mar 17, with one-way flights priced at just $349.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Philippine 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.
  • The cheapest months to fly from Hong Kong to Seattle is October, when demand for travel is lower.
  • After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Hong Kong to Seattle on January 21, 2026 with Philippine Airlines, with prices starting at $349.
  • You can land at any one of the following hubs in Seattle, with Hong Kong International Airport to Seattle–Tacoma International Airport (HKG-SEA) is by far the most common option on this route: Seattle–Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air - Lake Union (LKE).
  • The time difference between Seattle and Hong Kong 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 Hong Kong to Seattle

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

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

Based on Trip.com data from the past 12 months, EVA Air offers the cheapest nonstop flights from Hong Kong to Seattle, with an average price of $790.

$347
$493
$640
$787
$933
Philippine Airlines
$493
Philippine Airlines
Air Canada
$623
Air Canada
China Airlines
$644
China Airlines
STARLUX Airlines
$666
STARLUX Airlines
EVA Air
$790
EVA Air
Cathay Pacific
$933
Cathay Pacific