SEA - HKG

C$ 643 Find Cheap Flights from Seattle to Hong Kong – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 1,240
Typical prices: C$ 1,010-C$ 1,577
Philippine Airlines
Sat 10/2Wed 21/2
SEA - HKG • 1 stop
Cheapest direct flights
C$ 1,427
Typical prices: C$ 1,241-C$ 1,853
Cathay Pacific
Thu 4/1Fri 9/3
SEA - HKG • Direct
Direct flights
You can fly direct with Cathay Pacific. Average duration is 14h 20m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 52% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 14 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 812 (round-trip)
Shortest trip • 15h 51m (one-way)
Insights
Insights
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We hope you enjoy your trip to Hong Kong!
Flight Deals
Booking Insights
Flight Deals

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

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

Recent round-trip flight deals from Seattle to Hong Kong

Wed, 10 Feb - Sun, 21 Feb
Philippine Airlines Logo
9:30 p.m. - 12:20 p.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
22h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
10:55 p.m. - 6:45 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
35h 50m1 stop Manila Ninoy Aquino Intl
C$ 1,240Philippine Airlines
4 hours ago
Thu, 11 Feb - Sun, 21 Feb
Philippine Airlines Logo
9:30 p.m. - 12:20 p.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
22h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
10:55 p.m. - 6:45 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
35h 50m1 stop Manila Ninoy Aquino Intl
C$ 1,240Philippine Airlines
4 hours ago
Thu, 11 Feb - Fri, 19 Feb
Philippine Airlines Logo
9:30 p.m. - 12:20 p.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
22h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
1:30 p.m. - 6:45 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
21h 15m1 stop Manila Ninoy Aquino Intl
C$ 1,244Philippine Airlines
4 hours ago
Thu, 7 Jan - Wed, 10 Mar
Hainan Airlines Logo
10:05 a.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
33h 05m1 stop Chongqing Jiangbei Intl
Hainan Airlines Logo
8:50 p.m. - 8:05 a.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
27h 15m1 stop Chongqing Jiangbei Intl
C$ 1,247Hainan Airlines
23 hours ago
Fri, 5 Mar - Fri, 4 Jun
Philippine Airlines Logo
9:30 p.m. - 12:20 p.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
22h 50m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
1:20 p.m. - 7:35 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
21h 15m1 stop Manila Ninoy Aquino Intl
C$ 1,250Philippine Airlines
8 hours ago
Sat, 2 Jan - Wed, 10 Mar
Hainan Airlines Logo
10:20 a.m. - 1:10 p.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
34h 50m1 stop Beijing Capital
Hainan Airlines Logo
8:50 p.m. - 8:05 a.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
27h 15m1 stop Chongqing Jiangbei Intl
C$ 1,253Hainan Airlines
23 hours ago
Wed, 24 Feb - Mon, 31 May
Delta Logo
9:37 a.m. - 7:25 a.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
29h 48m1 stop Los Angeles
Delta Logo
12:45 a.m. - 1:20 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
27h 35m1 stop Incheon Intl
C$ 1,290Delta
7 hours ago
Tue, 23 Feb - Wed, 2 Jun
Delta Logo
7:59 p.m. - 7:25 a.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
19h 26m1 stop Los Angeles
Delta Logo
12:45 a.m. - 1:20 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
27h 35m1 stop Incheon Intl
C$ 1,290Delta
7 hours ago
Thu, 18 Feb - Wed, 31 Mar
United Airlines Logo
5:30 p.m. - 6:45 a.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
21h 15m1 stop San Francisco
United Airlines Logo
12:40 p.m. - 3:48 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
18h 08m1 stop Los Angeles
C$ 1,293United Airlines
1 day ago
Thu, 18 Feb - Mon, 29 Mar
United Airlines Logo
3:32 p.m. - 6:45 a.m.SEA  Seattle/Tacoma Intl-HKG Hong Kong Intl
23h 13m1 stop San Francisco
United Airlines Logo
11:45 a.m. - 2:18 p.m.HKG  Hong Kong Intl-SEA Seattle/Tacoma Intl
17h 33m1 stop San Francisco
C$ 1,293United Airlines
1 day ago
Booking Insights

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

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

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

Round-trip flights from Seattle to Hong Kong typically range from C$ 1,010 to C$ 1,577. The lowest price found in the past 5 days was C$ 1,240, on Philippine Airlines.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Seattle to Hong Kong. It's 12% cheaper than the average day, while Friday is the most expensive, with prices 5% higher.

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

•January is the cheapest month to fly from Seattle to Hong Kong at C$ 1,042 round-trip.
•July (C$ 2,012) and December (C$ 1,766) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 92% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Hong Kong the cheapest?

Flights from Seattle to Hong Kong are cheapest 14 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Seattle to Hong Kong flights

Low season

August

Cheapest flight

C$ 643
Beat the crowds with an average 26% drop in traveller numbers.
The most popular month to fly with an average 30% increase in traveller numbers.
One-way flight from Seattle to Hong Kong

When to book flights from Seattle to Hong Kong

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

Your Seattle to Hong Kong flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

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

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

    • Earliest: departs at 10:25 am and lands at 12:45 am
    • Latest: departs at 10:25 am and lands at 12:45 am.

    The flight takes about 14h 20m.

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

    Only Economy Class is available on flights from Seattle to Hong Kong.

  • How long does a flight from Seattle to Hong Kong take?

    A direct flight from Seattle to Hong Kong takes 14h 20m, covering 16,793 km.

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

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

    Round-trip flights from Seattle to Hong Kong range from C$ 1,010 to C$ 1,577, with an average of C$ 1,246 over the past 12 months. Anything below C$ 1,010 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 10% above the C$ 1,246 route average. Book 14 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 812 round-trip via Manila Ninoy Aquino Intl (MNL), compared to C$ 1,502 for direct.

  • How does on-time performance compare across airlines flying from Seattle to Hong Kong?

    Cathay Pacific is the only airline operating Seattle to Hong Kong flights. 52% of its flights are on time.

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

    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 787-9 Dreamliner variants.

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

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

  • Which airlines offer Wi-Fi on Seattle to Hong Kong flights?

    Cathay Pacific is the only airline on the Seattle to Hong Kong route offering in-flight Wi-Fi. Pricing depends on fare class.

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

    One-way fares from Seattle to Hong Kong are currently higher than usual. Average one-way flight prices are about C$ 655, which is 5% above the typical average for this route.

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

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

  • What time of day has the fewest delays on flights from Seattle to Hong Kong?

    Afternoon flights have the fewest delays on this route, while morning departures tend to have the most.

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

    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 Seattle to Hong Kong route, 48% of flights were delayed in the past three months, with delays averaging 2h 27m.

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

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

    • Taipei City Taiwan Taoyuan Intl (TPE) – 33% of one-stop connections
    • Incheon Intl (ICN) – 32% of one-stop connections
    • Vancouver Intl (YVR) – 17% of one-stop connections
    • Tokyo Haneda (HND) – 7% of one-stop connections

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

    Yes. Flexible dates can save you up to 17% on flights from Seattle to Hong Kong. Tuesday is the cheapest departure day at C$ 1,103 round-trip on average, while Friday is the most expensive at C$ 1,319, a difference of C$ 216.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Seattle to Hong Kong?

    Only Cathay Pacific operates flights between Seattle and Hong Kong.

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

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 15h 51m, compared with 16h 52m via Tokyo Narita (NRT) and 17h 42m via Vancouver Intl (YVR).

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

    Hong Kong is 16 hours ahead of Seattle (Hong Kong Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which popular places can I visit in Hong Kong?

    King's Park is one of the most viewed places in Hong Kong on KAYAK.

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

    Among airlines operating Seattle to Hong Kong 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.

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

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

    • Cathay Pacific: a carry-on bag and a checked bag in Economy Class
    • American Airlines: a carry-on bag and a checked bag in Economy Class
    • Malaysia Airlines: a carry-on bag and a checked bag in Business Class

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

  • Which pets can I bring aboard Cathay Pacific on flights from Seattle to Hong Kong?

    Cathay Pacific allows small dogs, cats, and household birds to travel in the cabin on flights from Seattle to Hong Kong. The combined weight of the pet and its carrier must not exceed 17 lbs. Additionally, the carrier dimensions must not exceed 22 x 14 inches, and 9 inches in height.

  • Does Cathay Pacific have kid-friendly amenities on flights from Seattle to Hong Kong?

    Yes, Cathay Pacific offers kid-friendly amenities on flights from Seattle to Hong Kong. They provide special services for children, including children's meals, activity kits, and in-flight entertainment options suitable for young travelers. The children's meals are designed to cater to their taste preferences and nutritional needs. The activity kits often include coloring books, puzzles, and other engaging items to keep kids entertained during the flight.

  • Can I pre-select seats on Cathay Pacific on flights from Seattle to Hong Kong?

    Yes, on flights from Seattle to Hong Kong with Cathay Pacific, passengers have the option to pre-select seats. Cathay Pacific offers different types of seating arrangements, including Standard, Preferred, and Extra Legroom seats.

  • Does Cathay Pacific support sustainability travel on flights from Seattle to Hong Kong?

    Yes, Cathay Pacific supports sustainability travel on flights from Seattle to Hong Kong. The airline has implemented various initiatives to promote environmental responsibility, including reducing carbon emissions and minimizing waste. Cathay Pacific uses advanced fuel-efficient aircraft and adopts sustainable practices in operations. It also supports recycling programs and focuses on responsible sourcing.

Your guide to booking Seattle to Hong Kong flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average C$ 1,103, about C$ 216 less than Friday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Hong Kong trip for January. Fares historically average C$ 1,042 round-trip in that month – typically C$ 969 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 C$ 812 round-trip on this route – about C$ 690 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 Hong Kong Intl Airport.

    • Regal Airport Hotel
    • Hong Kong Skycity Marriott Hotel
    • Regala Skycity Hotel by Regal Hotels
  • Cathay Pacific offers a range of special meals on flights from Seattle to Hong Kong to accommodate passengers with dietary restrictions and preferences. These include vegetarian meals, vegan meals, gluten-intolerant meals, low-calorie meals, low-fat meals, diabetic meals, and lactose-free meals.
  • Cathay Pacific, Delta Air Lines, and United Airlines commonly offer layovers on flights from Seattle to Hong Kong. Cathay Pacific typically has layovers at their hub in Hong Kong International Airport (HKG). Delta Air Lines often provides layovers at their hubs in Minneapolis-Saint Paul International Airport (MSP) or Detroit Metropolitan Wayne County Airport (DTW). United Airlines commonly offers layovers at their hubs in San Francisco International Airport (SFO), Los Angeles International Airport (LAX), or Chicago O'Hare International Airport (ORD).
  • Delta Air Lines offers assistance to disabled passengers on flights from Seattle to Hong Kong. They provide services such as wheelchair assistance, priority boarding, and trained staff to ensure a comfortable journey. Passengers with disabilities can request these services in advance or at the time of check-in. Cathay Pacific also accommodates passengers with visual or hearing impairments by providing accessible in-flight entertainment options and safety briefings.
  • Cathay Pacific also offers seat upgrade options on flights from Seattle to Hong Kong. Passengers can choose to upgrade their seats to Premium Economy Class, Business Class, or First Class, depending on availability and fare class. Premium Economy Class offers enhanced comfort and amenities, Business Class provides additional space, privacy, and premium services, while First Class offers the highest level of luxury, privacy, and personalized services.
  • Moreover, Cathay Pacific offers a comprehensive in-flight entertainment system on flights from Seattle to Hong Kong. Passengers can enjoy the StudioCX entertainment system, which includes a wide selection of movies, TV shows, music, and games. The system features personal seatback screens with touchscreen functionality, allowing travelers to browse and choose from an extensive library of entertainment content.

Prefer to fly direct from Seattle to Hong Kong?

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

Direct departures

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 nonstop flights

Direct returns

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 nonstop flights

More options for your flight from Seattle to Hong Kong

Complete your trip to Hong Kong with a hotel stay or car rental