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Cheap flights from Hong Kong to St. Louis from HK$3,731

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21-1. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — STL
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to St. Louis

Enter your travel dates to find the best prices.

Best flights from Hong Kong to St. Louis
Discover carefully curated flight deals from Hong Kong to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 December 2025.

Wed 1-416:05HKG - STL
1 stop19h 53mCathay Pacific
Sun 5-418:50STL - HKG
1 stop20h 45mCathay Pacific
Deal found 28-12HK$8,473
Tue 3-200:25HKG - STL
2 stops33h 48mQatar Airways
Sun 8-211:05STL - HKG
2 stops44h 35mQatar Airways
Deal found 27-12HK$9,624
Fri 13-220:25HKG - STL
2 stops52h 11mAir Canada
Fri 20-218:45STL - HKG
2 stops57h 55mAir Canada
Deal found 29-12HK$10,051
Fri 13-216:30HKG - STL
1 stop20h 28mMultiple Airlines
Fri 20-207:00STL - HKG
2 stops39h 00mMultiple Airlines
Deal found 29-12HK$10,758
Wed 1-411:45HKG - STL
2 stops24h 11mUnited Airlines
Sun 5-419:05STL - HKG
1 stop20h 55mUnited Airlines
Deal found 28-12HK$11,956
Fri 13-216:30HKG - STL
1 stop20h 28mCathay Pacific
Fri 20-218:50STL - HKG
1 stop20h 45mCathay Pacific
Deal found 29-12HK$9,336
Wed 4-216:30HKG - STL
1 stop20h 29mCathay Pacific
Sun 8-211:05STL - HKG
1 stop19h 25mCathay Pacific
Deal found 27-12HK$9,725
Tue 31-301:25HKG - STL
2 stops35h 27mQatar Airways
Sun 5-409:20STL - HKG
2 stops47h 35mQatar Airways
Deal found 29-12HK$10,766
Wed 4-211:25HKG - STL
2 stops23h 48mUnited Airlines
Sun 8-217:00STL - HKG
1 stop23h 45mUnited Airlines
Deal found 27-12HK$11,956
Sun 18-122:45HKG - STL
2 stops32h 10mUnited Airlines
Fri 23-106:45STL - HKG
1 stop22h 35mUnited Airlines
Deal found 29-12HK$12,655

Find flight deals from Hong Kong to St. Louis

Keep the following information in mind while searching for Hong Kong to St. Louis flight deals. Data was last updated 30 December 2025.

Round-trip from

HK$8,473

One-way from

HK$3,731
Cathay Pacific
  • Cathay Pacific
  • 1-4-5-4
  • 2 total stops
  • 40h 38m total
  • Hong Kong to St. Louis
Search Deals
21-1
  • 21-1
  • 3 total stops
  • 39h 21m total
  • Hong Kong to St. Louis
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 30 December 2025.
Use the filters below to find and compare flights from Hong Kong to St. Louis that are best for you.

Fly from

Hong Kong

Fly to

St. Louis

Route

Departure

Return

Price

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 1-4

16:05-22:58

1 stop19h 53m

Lambert-St Louis

Sun 5-4

18:50-04:35

1 stop20h 45m

HK$8,473

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 13-2

16:30-22:58

1 stop20h 28m

Lambert-St Louis

Fri 20-2

18:50-05:35

1 stop20h 45m

HK$9,336

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-2

00:25-20:13

2 stops33h 48m

Lambert-St Louis

Sun 8-2

11:05-21:40

2 stops44h 35m

HK$9,624

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 4-2

16:30-22:59

1 stop20h 29m

Lambert-St Louis

Sun 8-2

11:05-20:30

1 stop19h 25m

HK$9,725

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 13-2

20:25-10:36

2 stops52h 11m

Lambert-St Louis

Fri 20-2

18:45-18:40

2 stops57h 55m

HK$10,051

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 13-2

16:30-22:58

1 stop20h 28m

Lambert-St Louis

Fri 20-2

07:00-12:00

2 stops39h 00m

HK$10,758

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 31-3

01:25-23:52

2 stops35h 27m

Lambert-St Louis

Sun 5-4

09:20-21:55

2 stops47h 35m

HK$10,766

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 1-4

11:45-22:56

2 stops24h 11m

Lambert-St Louis

Sun 5-4

19:05-05:00

1 stop20h 55m

HK$11,956

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 4-2

11:25-21:13

2 stops23h 48m

Lambert-St Louis

Sun 8-2

17:00-06:45

1 stop23h 45m

HK$11,956

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sun 18-1

22:45-16:55

2 stops32h 10m

Lambert-St Louis

Fri 23-1

06:45-19:20

1 stop22h 35m

HK$12,655

Flights are sorted by cheapest return flights first.

Deals found on 28-12

Showing 1-10 of 18 results
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Best time to book a flight from Hong Kong to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Hong Kong 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.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to St. Louis
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Hong Kong?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Hong Kong. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.

  • How long is the flight from Hong Kong to St. Louis?

    For as low as HK$8,473, Cathay Pacific can have you in St. Louis from Hong Kong in 19h 53m. The distance from Hong Kong to St. Louis is about 12760 km. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Hong Kong to St. Louis?

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

  • Can I find deals for business class flights from Hong Kong to St. Louis?

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

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights from Hong Kong to St. Louis?

When you search for this flight from Hong Kong to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Hong Kong to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Hong Kong to St. Louis with no change fees?

Yes, we can. To see specific flights from Hong Kong to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Hong Kong to St. Louis become cheaper?

Yes! Start tracking prices for Hong Kong to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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