HKG - SEA

$429 Find Cheap Flights from Hong Kong to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$720
Typical prices: $669-$1,005
United Airlines
Fri 12/14Sat 12/29
HKG - SEA • 1 stop
Cheapest non-stop
$954
Typical prices: $813-$1,197
Cathay Pacific
Mon 10/15Mon 10/22
HKG - SEA • Non-stop
Nonstop flights
You can fly direct with Cathay Pacific. Average duration is 11h 41m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 64% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $624 (round-trip)
Shortest trip • 16h 34m (one-way)
Insights
Insights
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Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hong Kong to Seattle

Mon, Dec 14 - Tue, Dec 29
United Airlines Logo
10:35 am - 11:44 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
29h 09m1 stop San Francisco
United Airlines Logo
5:34 pm - 7:20 pmSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
33h 46m2 stops Los Angeles Los Angeles San Francisco
$720United Airlines
Mon, Oct 12 - Mon, Oct 19
United Airlines Logo
11:45 am - 9:59 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
25h 14m2 stops San Francisco Los Angeles Los Angeles
United Airlines Logo
5:21 pm - 5:00 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
20h 39m1 stop San Francisco
$720United Airlines
Tue, Sep 29 - Sat, Oct 10
Delta Logo
12:20 pm - 1:37 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
16h 17m1 stop Incheon Intl
Delta Logo
5:55 pm - 5:05 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
20h 10m1 stop Los Angeles Los Angeles
$806Delta
Mon, Dec 14 - Tue, Dec 29
Delta Logo
6:10 pm - 11:56 amHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
33h 46m1 stop Incheon Intl
Delta Logo
7:55 pm - 7:40 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
19h 45m1 stop Los Angeles Los Angeles
$806Delta
Mon, Dec 14 - Tue, Dec 29
Air Canada Logo
12:55 am - 6:22 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
33h 27m2 stops Incheon Intl Vancouver Intl
Air Canada Logo
3:15 pm - 5:10 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
21h 55m1 stop Vancouver Intl
$806Air Canada
Tue, Oct 27 - Sun, Nov 1
Air Canada Logo
12:55 am - 2:37 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
28h 42m2 stops Incheon Intl Vancouver Intl
Air Canada Logo
3:15 pm - 11:10 pmSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
39h 55m2 stops Vancouver Intl Incheon Intl
$814Air Canada
Fri, Oct 30 - Thu, Nov 5
EVA Air Logo
9:50 pm - 6:30 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
35h 40m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
12:10 am - 8:05 pmSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
27h 55m1 stop Taipei City Taiwan Taoyuan Intl
$819EVA Air
Mon, Feb 1 - Mon, Feb 8
China Airlines Logo
2:05 pm - 6:10 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
20h 05m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
12:10 am - 9:15 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
17h 05m1 stop Taipei City Taiwan Taoyuan Intl
$819China Airlines
Fri, Oct 16 - Fri, Oct 23
EVA Air Logo
3:25 pm - 7:20 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
18h 55m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
1:30 am - 8:05 pmSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
27h 35m1 stop Taipei City Taiwan Taoyuan Intl
$820EVA Air
Tue, Sep 29 - Sun, Oct 4
China Airlines Logo
11:05 am - 7:15 pmHKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
23h 10m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
1:15 am - 9:15 amSEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
17h 00m1 stop Taipei City Taiwan Taoyuan Intl
$937China Airlines
Booking Insights

Price, demand and travel trends for Hong Kong to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Hong Kong to Seattle with more confidence.

How much is a round-trip flight from Hong Kong to Seattle?

Round-trip flights from Hong Kong to Seattle start at $720. Prices are typical for this route right now, with typical round-trip fares ranging from $669 to $1,005. The lowest price found in the past 5 days was $720 on United Airlines.

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

Thursday is the cheapest day of the week to fly from Hong Kong to Seattle, it is 10% cheaper than the average day. Saturday is the most expensive day with flight prices 19% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Hong Kong to Seattle?

  • November is the cheapest month to fly from Hong Kong to Seattle at $663 round-trip.
  • July ($1,073) and August ($1,006) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 61% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Hong Kong to Seattle the cheapest?

Flights from Hong Kong to Seattle are cheapest 16 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Hong Kong to Seattle flights

Low season

November

Cheapest flight

$429
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Hong Kong to Seattle

When to book flights from Hong Kong to Seattle

Are your dates flexible? Find out the best times to travel from Hong Kong to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Hong Kong to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on Hong Kong to Seattle flights?

    Among airlines operating Hong Kong to Seattle flights:

    • Cathay Pacific: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Hong Kong to Seattle?

    Only Cathay Pacific operates flights between Hong Kong and Seattle.

  • Which airports can I use when flying from Hong Kong to Seattle?

    Flights from Hong Kong to Seattle usually depart from Hong Kong Intl (HKG) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airlines include bags at no extra cost on Hong Kong to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Cathay Pacific: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Hong Kong to Seattle?

    Four cabin classes are available on flights from Hong Kong to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Hong Kong to Seattle?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $624 round-trip via Manila Ninoy Aquino Intl (MNL), compared to $1,103 for nonstop.

  • Which aircraft model is used most often on flights from Hong Kong to Seattle?

    The Airbus A350-900 family is used most often on this route, operated mainly by American Airlines and Malaysia Airlines. Other aircraft seen on the route include Boeing 777-300ER variants.

  • Which airports do connecting flights from Hong Kong to Seattle pass through?

    One-stop flights from Hong Kong to Seattle most commonly connect through:

    • Taipei City Taiwan Taoyuan Intl (TPE) - 59% of one-stop connections
    • Incheon Intl (ICN) - 14% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) - 9% of one-stop connections
    • Vancouver Intl (YVR) - 8% of one-stop connections

    Taipei City Taiwan Taoyuan Intl (TPE) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Hong Kong to Seattle?

    Yes. Being flexible with your travel dates can save you up to 24% on the Hong Kong to Seattle route. Thursday is the cheapest departure day at $711 round-trip on average, while Saturday is the most expensive at $934, a difference of $223. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Hong Kong to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Hong Kong to Seattle route, 36% of flights were delayed in the past 3 months, with delays averaging 2 hours 14 minutes.

  • How are flight departures from Hong Kong to Seattle spread across the day?

    Afternoon is the busiest departure period on Hong Kong to Seattle flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Pier 66 and Lumen Field. These are among the most viewed places in Seattle on KAYAK.

  • What are the earliest and latest flights from Hong Kong to Seattle?

    These are the earliest and latest flight times available from Hong Kong to Seattle:

    • Earliest: departs at 1:05 pm and lands at 12:46 am
    • Latest: departs at 1:25 pm and lands at 1:06 am.

    The flight takes about 11h 41m.

  • How expensive are last-minute Hong Kong to Seattle flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 7% above the route average of $782. Book 16 weeks before departure for the lowest fares.

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

    A nonstop flight from Hong Kong to Seattle takes 11h 41m, covering 6,484 miles.

  • Do I need a passport to fly from Hong Kong to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Hong Kong to Seattle looking right now?

    One-way fares from Hong Kong to Seattle are currently lower than usual. Average one-way flight prices are about $473, which is 8% below the typical average for this route.

  • How does Cathay Pacific’s on-time performance compare to other airlines on Hong Kong to Seattle flights?

    Cathay Pacific is the only airline operating Hong Kong to Seattle flights. 64% of its flights are on time.

  • How do delay rates compare for morning and evening flights from Hong Kong to Seattle?

    Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Hong Kong to Seattle?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 16h 34m, compared with 16h 53m via Vancouver Intl (YVR) and 17h 12m via Tokyo Narita (NRT).

  • What is the time difference between Hong Kong and Seattle?

    Seattle is 15 hours behind Hong Kong (Pacific Time vs Hong Kong Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • How much should I expect to pay for a Hong Kong to Seattle flight?

    Round-trip flights from Hong Kong to Seattle range from $669 to $1,005, with an average of $782 over the past 12 months. Anything below $669 counts as a good deal.

Your guide to booking Hong Kong to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $711 - about $223 less than Saturday (24% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 25% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Hong Kong to Seattle trip for November. Fares historically average $663 round-trip in that month - typically $410 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Manila Ninoy Aquino Intl Airport (MNL) can be cheaper than flying direct. The cheapest layover option averages $624 round-trip on this route - about $480 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Hong Kong to Seattle?

 
Find which airlines fly direct from Hong Kong Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Hong Kong Intl to Seattle/Tacoma Intl

Monday

Cathay Pacific

Cathay Pacific

Tuesday

Cathay Pacific

Cathay Pacific

Wednesday

Cathay Pacific

Cathay Pacific

Thursday

Cathay Pacific

Cathay Pacific

Saturday

Cathay Pacific

Cathay Pacific

See more direct flights

Direct returns

Seattle/Tacoma Intl to Hong Kong Intl

Monday

Cathay Pacific

Cathay Pacific

Tuesday

Cathay Pacific

Cathay Pacific

Wednesday

Cathay Pacific

Cathay Pacific

Thursday

Cathay Pacific

Cathay Pacific

Saturday

Cathay Pacific

Cathay Pacific

See more direct flights

More options for your flight from Hong Kong to Seattle

Complete your trip to Seattle with a hotel stay or car rental