Cheap flights from Hong Kong to St. Louis from HK$3,663

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 19-9. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — STL
14 Oct — 21 Oct1
1 adult
1 adult, Economy

Cheap 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 14 September 2025.

Round-trip from

HK$8,361

One-way from

HK$3,663
Cathay Pacific
  • Cathay Pacific
  • 30-9-14-10
  • 2 total stops
  • 49h 37m total
  • Hong Kong to St. Louis
19-9
  • 19-9
  • 3 total stops
  • 32h 36m total
  • Hong Kong to St. Louis

Find flight deals from Hong Kong to St. Louis

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 14 September 2025.

Tue 30-916:05HKG - STL
1 stop19h 45mCathay Pacific
Tue 14-1009:43STL - HKG
1 stop29h 52mCathay Pacific
Deal found 13-9HK$8,361
Mon 29-900:05HKG - STL
2 stops30h 29mMultiple Airlines
Tue 14-1006:39STL - HKG
1 stop23h 16mMultiple Airlines
Deal found 13-9HK$9,022
Tue 30-910:15HKG - STL
2 stops41h 24mChina Airlines
Tue 14-1006:33STL - HKG
2 stops44h 57mChina Airlines
Deal found 13-9HK$9,084
Tue 30-911:15HKG - STL
1 stop18h 39mUnited Airlines
Tue 14-1012:25STL - HKG
2 stops28h 15mUnited Airlines
Deal found 13-9HK$11,262
Mon 29-900:45HKG - STL
2 stops35h 24mDelta
Tue 14-1015:59STL - HKG
2 stops35h 21mDelta
Deal found 13-9HK$11,565
Mon 29-900:40HKG - STL
2 stops32h 02mEmirates
Tue 14-1015:23STL - HKG
3 stops37h 42mEmirates
Deal found 13-9HK$22,461

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 14 September 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

Mon 29-9

00:05-17:34

2 stops30h 29m

Lambert-St Louis

Tue 14-10

06:39-18:55

1 stop23h 16m

HK$9,022

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 30-9

10:15-14:39

2 stops41h 24m

Lambert-St Louis

Tue 14-10

06:33-16:30

2 stops44h 57m

HK$9,084

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

20:25-15:29

2 stops33h 04m

Lambert-St Louis

Sun 22-2

16:05-18:40

2 stops36h 35m

HK$11,207

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 30-9

11:15-22:00

3 stops23h 45m

Lambert-St Louis

Tue 14-10

06:30-18:55

2 stops23h 25m

HK$11,262

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

10:35-16:44

1 stop20h 09m

Lambert-St Louis

Sun 22-2

17:25-19:20

1 stop35h 55m

HK$11,534

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 29-9

00:45-23:09

2 stops35h 24m

Lambert-St Louis

Tue 14-10

15:59-16:20

2 stops35h 21m

HK$11,565

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

16:40-23:08

1 stop20h 28m

Lambert-St Louis

Sun 22-2

06:10-19:10

1 stop23h 00m

HK$12,071

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 20-9

20:10-09:06

3 stops49h 56m

HK$3,686

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

19:40-13:52

2 stops32h 12m

HK$4,526

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 13-10

21:10-17:30

2 stops33h 20m

HK$4,573

Flights are sorted by cheapest return flights first.

Deals found on 12-9

Showing 1-10 of 14 results
1
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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 14 September 2025.
Read through reviews of airlines operating flights from Hong Kong to St. Louis, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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$11,207, China Airlines can have you in St. Louis from Hong Kong in 33h 04m. The distance from Hong Kong to St. Louis is about 12760 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Hong Kong to St. Louis round-trip?

    Cheapflights users have booked flights from Hong Kong to St. Louis round-trip from HK$10,553.

  • 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 from Hong Kong to St. Louis on these airlines

Choose from the following airlines for your flight from Hong Kong to St. Louis. Flights are based on user searches made on Cheapflights and were last updated on 14 September 2025.

Top airline flying from Hong Kong to St. Louis

Discover the top airline that operate flights from Hong Kong to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 14 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$10,553AverageHK$10,553FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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