Find flights
Deals
When to book
FAQs

Cheap flights from Hong Kong to Seattle from £339

HKG — SEA
26 Oct — 2 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to Seattle

Wed 23/911:45 -
2 stops24h 30m
Wed 30/919:25 -
1 stop32h 30m
Deal found 22/9£520
Wed 28/1011:25 -
2 stops21h 32m
Sun 1/1119:35 -
1 stop31h 45m
Deal found 22/9£521
Thu 1/1012:40 -
1 stop18h 10m
Wed 14/1015:18 -
1 stop22h 42m
Deal found 25/9£542
Sun 25/1010:35 -
1 stop19h 04m
Sun 1/1119:04 -
2 stops32h 16m
Deal found 25/9£560
Mon 28/911:45 -
1 stop21h 59m
Sun 18/1006:30 -
1 stop21h 00m
Deal found 23/9£582
Sun 27/911:45 -
1 stop24h 16m
Sat 17/1005:00 -
2 stops22h 30m
Deal found 22/9£598
Fri 16/1022:30 -
1 stop17h 45m
Sat 24/1008:30 -
2 stops30h 15m
Deal found 26/9£598
Tue 20/1000:45 -
1 stop27h 29m
Thu 29/1012:30 -
1 stop27h 10m
Deal found 24/9£610
Tue 27/1022:30 -
1 stop28h 50m
Wed 28/1015:35 -
2 stops24h 25m
Deal found 24/9£610
Sun 1/1100:55 -
1 stop26h 56m
Thu 3/1217:37 -
1 stop22h 03m
Deal found 22/9£613
Mon 26/1022:30 -
1 stop17h 29m
Thu 29/1015:35 -
2 stops24h 25m
Deal found 24/9£614

Find flight deals from Hong Kong to Seattle

Round-trip from

£520

One-way from

£339

Popular in

August

Cheapest in

November

Average price

£581
United Airlines
  • United Airlines
  • 28/10-1/11
  • 3 total stops
  • 53h 17m total
  • Hong Kong to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 29/1-31/12
  • 1 total stop
  • 23h 20m total
  • Hong Kong to Seattle
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Hong Kong to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Fri 29/1

11:25-18:45

1 stop23h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£339

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Tue 3/11

22:55-18:45

1 stop35h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£339

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Tue 6/10

22:30-11:35

2 stops28h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£416

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Thu 5/11

11:25-18:33

2 stops23h 08m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£416

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Mon 2/11

22:45-12:20

2 stops29h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£423

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Tue 24/11

10:35-21:50

2 stops27h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£423

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Wed 7/10

09:30-23:26

3 stops28h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£456

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Fri 9/10

12:20-13:14

1 stop15h 54m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£461

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Sun 8/11

22:45-12:20

2 stops29h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£466

Hong KongSeattle

HKG Hong Kong Intl - SEA Seattle/Tacoma Intl

HKGSEA

Hong Kong Intl

Tue 12/1

12:35-14:10

1 stop17h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£496

Flights are sorted by cheapest return flights first.

Deals found on 23/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Hong Kong to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Hong Kong with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Seattle

How far ahead should I book a flight from Hong Kong to Seattle?

To ensure you get the cheapest price possible for a flight from Hong Kong to Seattle, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Hong Kong to Seattle?

Currently, November is the cheapest month in which you can book a flight from Hong Kong to Seattle (average of £502). Flying from Hong Kong to Seattle in August is currently the most expensive (average of £900). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HKG to SEA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hong Kong to Seattle as you normally would.

How much does it cost for a return flight from Hong Kong to Seattle?

Airfare is below average for this route at the moment.

Hong Kong to Seattle flights typically cost between £554 and £619 in October.
The cheapest return price found within the last 5 days was £520 on United Airlines (28 Oct–1 Nov).

Related info for your journey

  • How long is the flight from Hong Kong to Seattle?

    United Airlines can get you from Hong Kong to Seattle in just under 21h 32m. Your travel time can differ by up to . Airlines will cover a distance of 6484 mi.

  • What are the most reliable airlines from Hong Kong to Seattle?

    No one likes to see their flight delayed. When booking a flight from Hong Kong to Seattle consider choosing American Airlines (26%), Cathay Pacific (26%) or Malaysia Airlines (26%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Hong Kong to Seattle that include hotel bookings?

    Yes. In addition to deals on Hong Kong to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Seattle.

  • Can I find deals for business class flights from Hong Kong to Seattle?

    Yes. Cheapflights offers flight deals from Hong Kong to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Hong Kong to Seattle (average of £502). Flying from Hong Kong to Seattle in August is currently the most expensive (average of £900). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Hong Kong to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hong Kong to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Hong Kong to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Hong Kong to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Hong Kong to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Hong Kong today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.