United Airlines flights from Seattle to Hong Kong (SEA - HKG)

SEA — HKG
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Seattle to Hong Kong on United Airlines typically fly into Hong Kong Intl and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

United Airlines flights from Seattle to Hong Kong in 2025

Find detailed information about United Airlines flights from Seattle to Hong Kong. Explore the options provided by United Airlines to plan your journey from Seattle to Hong Kong. Data last updated 4 November 2025.

One-way from

HK$2,775

Return from

HK$5,557

Popular in

July

Cheapest in

September

Average price (all airlines)

HK$6,148
United Airlines
  • United Airlines
  • 24-11
  • 1 total stop
  • 21h 50m total
  • Seattle to Hong Kong
United Airlines
  • United Airlines
  • 24-11-1-12
  • 2 total stops
  • 36h 53m total
  • Seattle to Hong Kong
Highest demand for flights from Seattle/Tacoma Intl to Hong Kong Intl; 7% potential price increase.
Best time to find cheap flights from Seattle/Tacoma Intl to Hong Kong Intl; 1% potential price drop.
Average price for all Seattle/Tacoma Intl to Hong Kong Intl flights (one-way and round-trip).

Find United Airlines flight deals from Seattle to Hong Kong

Enter your travel dates to find the best prices.

Cheapest United Airlines flights from Seattle to Hong Kong
Explore the most affordable United Airlines flight options available from Seattle to Hong Kong. Find the lowest fares with prices last updated on 4 November 2025.

Mon 24-1112:30SEA - HKG
2 stops26h 30mUnited Airlines
Mon 1-1214:20HKG - SEA
1 stop15h 00mUnited Airlines
Deal found 3-11HK$5,557
Tue 18-1105:30SEA - HKG
2 stops21h 45mUnited Airlines
Mon 1-1214:20HKG - SEA
1 stop15h 00mUnited Airlines
Deal found 3-11HK$5,596
Wed 19-1115:40SEA - HKG
1 stop29h 15mUnited Airlines
Mon 1-1214:20HKG - SEA
1 stop15h 00mUnited Airlines
Deal found 3-11HK$5,604

Travel insights for United Airlines flights from Seattle to Hong Kong

Get recent, data-driven insights about United Airlines flights from Seattle to Hong Kong including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Seattle to Hong Kong. Price data was last updated on 31 October 2025.

Booking with United Airlines 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Hong Kong. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, the most affordable month to book a United Airlines flight from Seattle to Hong Kong in September, with an average price of HK$5,464. Conversely, traveling with United Airlines from Seattle to Hong Kong in December will be the most expensive, with an average cost of HK$6,956. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Best time to book a flight from Seattle to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Fly from Seattle to Hong Kong on another airline

Consider alternative airlines that service the Hong Kong area. Flight routes are based on user searches made on Cheapflights and were last updated on 4 November 2025.

See what others are saying about United Airlines

Read reviews and see what other travellers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated 4 November 2025.
United Airlines
7.4
Good
9,002 reviews
Overview

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

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