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Cheap flights from Hong Kong to St. Louis from HK$3,727

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 9-3. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — STL
11 Mar — 18 Mar1
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.

Cheapest flights from Hong Kong to St. Louis
Explore the most affordable flight options available from Hong Kong to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 February 2026.

Wed 1-416:05
HKG
-
STL
1 stop19h 53m
Cathay Pacific
Sun 5-418:50
STL
-
HKG
1 stop21h 20m
Cathay Pacific
Deal found 5-2HK$8,484
Wed 1-411:45
HKG
-
STL
2 stops22h 09m
United Airlines
Sun 5-419:05
STL
-
HKG
1 stop34h 50m
United Airlines
Deal found 5-2HK$11,360

Find flight deals from Hong Kong to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 February 2026.

Round-trip from

HK$8,484

One-way from

HK$3,727
Cathay Pacific
  • Cathay Pacific
  • 1-4-5-4
  • 2 total stops
  • 41h 13m total
  • Hong Kong to St. Louis
Search Deals
9-3
  • 9-3
  • 3 total stops
  • 50h 44m 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 9 February 2026.
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

18:50-05:10

1 stop21h 20m

HK$8,484

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 1-4

11:45-20:54

2 stops22h 09m

Lambert-St Louis

Sun 5-4

19:05-18:55

1 stop34h 50m

HK$11,360

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 5-3

19:40-09:49

3 stops52h 09m

HK$3,750

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 6-3

14:05-09:49

3 stops33h 44m

HK$3,828

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

15:30-13:51

2 stops36h 21m

HK$4,063

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

14:00-06:51

3 stops54h 51m

HK$4,438

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 16-2

14:00-06:51

3 stops54h 51m

HK$4,555

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 21-2

17:35-13:09

3 stops57h 34m

HK$4,781

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 19-2

19:45-23:59

2 stops42h 14m

HK$5,109

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 16-2

02:00-06:51

3 stops42h 51m

HK$5,617

Flights are sorted by cheapest return flights first.

Deals found on 5-2

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.

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.

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

    For as low as HK$8,484, 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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How does Cheapflights help users find flights from Hong Kong to St. Louis?

Cheapflights makes it easy to find Hong Kong to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Hong Kong.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Hong Kong to St. Louis flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from Hong Kong to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

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