£338 Cheap Flights from Hong Kong (HKG) to Seattle (SEA)

View £338 flight on Thu, 15 Oct 2026Opens in a new window

Popular airlines from Hong Kong International Airport (HKG) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Hong Kong (HKG) to Seattle (SEA)

Prices were available within the past 7 days and start at £338 for one-way flights and £571 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 9 Oct - Fri, 16 Oct
HKG
Hong Kong SAR
SEA
Seattle
£571 Return, found 15 hours ago
£571
Return
found 15 hours ago
Select Delta flight, departing Fri, 9 Oct from Hong Kong SAR to Seattle, returning Fri, 16 Oct, priced at £571 found 15 hours ago
Asiana Airlines
Thu, 22 Oct - Fri, 30 Oct
HKG
Hong Kong SAR
SEA
Seattle
£608 Return, found 15 hours ago
£608
Return
found 15 hours ago
Select Asiana Airlines flight, departing Thu, 22 Oct from Hong Kong SAR to Seattle, returning Fri, 30 Oct, priced at £608 found 15 hours ago
Philippine Airlines
Wed, 21 Oct - Thu, 29 Oct
HKG
Hong Kong SAR
SEA
Seattle
£638 Return, found 15 hours ago
£638
Return
found 15 hours ago
Select Philippine Airlines flight, departing Wed, 21 Oct from Hong Kong SAR to Seattle, returning Thu, 29 Oct, priced at £638 found 15 hours ago
EVA Airways
Fri, 4 Sept - Fri, 2 Oct
HKG
Hong Kong SAR
SEA
Seattle
£690 Return, found 4 days ago
£690
Return
found 4 days ago
Select EVA Airways flight, departing Fri, 4 Sept from Hong Kong SAR to Seattle, returning Fri, 2 Oct, priced at £690 found 4 days ago
China Airlines
Thu, 22 Oct - Fri, 30 Oct
HKG
Hong Kong SAR
SEA
Seattle
£690 Return, found 15 hours ago
£690
Return
found 15 hours ago
Select China Airlines flight, departing Thu, 22 Oct from Hong Kong SAR to Seattle, returning Fri, 30 Oct, priced at £690 found 15 hours ago
Air Canada
Wed, 21 Oct - Thu, 29 Oct
HKG
Hong Kong SAR
SEA
Seattle
£725 Return, found 15 hours ago
£725
Return
found 15 hours ago
Select Air Canada flight, departing Wed, 21 Oct from Hong Kong SAR to Seattle, returning Thu, 29 Oct, priced at £725 found 15 hours ago
United
Fri, 9 Oct - Fri, 16 Oct
HKG
Hong Kong SAR
SEA
Seattle
£730 Return, found 15 hours ago
£730
Return
found 15 hours ago
Select United flight, departing Fri, 9 Oct from Hong Kong SAR to Seattle, returning Fri, 16 Oct, priced at £730 found 15 hours ago
Cathay Pacific
Wed, 21 Oct - Thu, 29 Oct
HKG
Hong Kong SAR
SEA
Seattle
£750 Return, found 15 hours ago
£750
Return
found 15 hours ago
Select Cathay Pacific flight, departing Wed, 21 Oct from Hong Kong SAR to Seattle, returning Thu, 29 Oct, priced at £750 found 15 hours ago
Qatar Airways
Mon, 15 Jun - Mon, 22 Jun
HKG
Hong Kong SAR
SEA
Seattle
£798 Return, found 1 day ago
£798
Return
found 1 day ago
Select Qatar Airways flight, departing Mon, 15 Jun from Hong Kong SAR to Seattle, returning Mon, 22 Jun, priced at £798 found 1 day ago
All Nippon Airways
Wed, 24 Jun - Sat, 4 Jul
HKG
Hong Kong SAR
SEA
Seattle
£820 Return, found 2 days ago
£820
Return
found 2 days ago
Select All Nippon Airways flight, departing Wed, 24 Jun from Hong Kong SAR to Seattle, returning Sat, 4 Jul, priced at £820 found 2 days ago

Find the cheapest month to fly from Chek Lap Kok (HKG) to Seattle (SEA)

September is typically the cheapest month to fly

From £432 - £619 per traveller.

Frequently asked questions

How much does a flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £663 and £4,858 and return flights often range between £663 and £4,858. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
November is typically the cheapest month to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares of approximately £576. This is about 19% lower than the average price throughout the year. November often sees lower prices as it's outside peak holiday seasons, leading to reduced demand. Other cheap months to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include March and September.
Which airlines fly direct from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter HKG to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveller to traveller. If you like to fly early, CX offers early morning flights. If price is the most important factor, CX typically offers the lowest fares. CX offers the most daily flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When looking for the best time to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll find that November and September are typically the cheapest months, with average return flights around £576. While March is a popular month for travel, offering plenty of flight options, it's not the cheapest. If you're looking for the best value, aiming for November or September will help you save on your airfare, based on booking data from the past year.
How many flights per day from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 109 connecting flights per day from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Taoyuan Intl. (TPE), Narita Intl. (NRT), and Incheon Intl. (ICN).
What is the earliest flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 12:05 AM local time, operated by Cathay Pacific and American Airlines. This is a seasonal service active in September. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Wednesday, with around 64 flights available. This gives you plenty of options for your travel plans. Flight schedules are consistent throughout the week, so you'll have a good selection of flights no matter when you choose to fly. Major airlines on this route include Cathay Pacific, EVA Air, and Hong Kong Airlines.
What are the most popular departure times for flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are between 12pm and 3pm. Approximately 27% of passengers prefer this time window. Many major carriers, including Cathay Pacific and ANA, offer flights during this window. This timing works well because it allows you to depart Hong Kong in the early afternoon and arrive in Seattle, WA at a convenient time.
How long does it take to fly from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Direct flights from HKG to SEA usually take about 12 hours, traveling roughly 6,488 miles. If you opt for a connecting flight, expect to add around 3 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for HKG to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Hong Kong Intl. (HKG)?
From Hong Kong Intl. (HKG), you can fly directly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Taoyuan Intl. (TPE), Narita Intl. (NRT), Heathrow (LHR) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Hong Kong (HKG-Hong Kong Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Hong Kong Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Return price
£570
Distance
10380 km
Average flight time
12 hours 40 mins

Book with confidence

Compare flights from Hong Kong to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Hong Kong to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Hong Kong Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Hong Kong Intl. (HKG) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Hong Kong to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Hong Kong Intl. to Seattle - Tacoma Intl. start at just £571 and range up to £820.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Hong Kong and Seattle
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Hong Kong to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Hong Kong Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Hong Kong to Seattle easily and book with confidence

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*Available to Expedia members.