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Cheap flights from Hong Kong to St. Louis from HK$4,638

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 3-3. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — STL
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

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 25 November 2025.

Round-trip from

HK$9,728

One-way from

HK$4,638
Cathay Pacific
  • Cathay Pacific
  • 5-2-9-2
  • 2 total stops
  • 39h 54m total
  • Hong Kong to St. Louis
Search Deals
3-3
  • 3-3
  • 2 total stops
  • 34h 25m total
  • Hong Kong to St. Louis
Search Deals

Find 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 25 November 2025.

Thu 5-216:30HKG - STL
1 stop20h 29mCathay Pacific
Mon 9-211:05STL - HKG
1 stop19h 25mCathay Pacific
Deal found 23-11HK$9,728
Wed 4-200:25HKG - STL
2 stops34h 50mQatar Airways
Mon 9-206:00STL - HKG
2 stops49h 40mQatar Airways
Deal found 23-11HK$9,743
Thu 5-210:35HKG - STL
2 stops22h 52mUnited Airlines
Mon 9-206:45STL - HKG
1 stop22h 35mUnited Airlines
Deal found 24-11HK$11,354
Fri 6-218:05HKG - STL
2 stops38h 08mQatar Airways
Mon 9-211:05STL - HKG
2 stops37h 45mQatar Airways
Deal found 22-11HK$9,969
Fri 6-216:30HKG - STL
1 stop20h 29mCathay Pacific
Mon 9-211:05STL - HKG
1 stop19h 25mCathay Pacific
Deal found 22-11HK$10,327
Fri 6-210:35HKG - STL
2 stops21h 08mUnited Airlines
Mon 9-206:45STL - HKG
1 stop22h 35mUnited Airlines
Deal found 22-11HK$11,954

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 25 November 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

Thu 5-2

16:30-22:59

1 stop20h 29m

Lambert-St Louis

Mon 9-2

11:05-20:30

1 stop19h 25m

HK$9,728

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 4-2

00:25-21:15

2 stops34h 50m

Lambert-St Louis

Mon 9-2

06:00-21:40

2 stops49h 40m

HK$9,743

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 6-2

18:05-18:13

2 stops38h 08m

Lambert-St Louis

Mon 9-2

11:05-14:50

2 stops37h 45m

HK$9,969

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 6-2

16:30-22:59

1 stop20h 29m

Lambert-St Louis

Mon 9-2

11:05-20:30

1 stop19h 25m

HK$10,327

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 5-2

10:35-19:27

2 stops22h 52m

Lambert-St Louis

Mon 9-2

06:45-19:20

1 stop22h 35m

HK$11,354

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 6-2

10:35-17:43

2 stops21h 08m

Lambert-St Louis

Mon 9-2

06:45-19:20

1 stop22h 35m

HK$11,954

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

21:10-17:35

2 stops34h 25m

HK$4,638

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 2-3

00:25-18:11

2 stops31h 46m

HK$6,374

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

16:30-23:18

1 stop20h 48m

HK$6,763

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

10:00-22:14

3 stops26h 14m

HK$8,382

Flights are sorted by cheapest return flights first.

Deals found on 23-11

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 25 November 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.
United Airlines
7.4
Good
9,044 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,044 reviews
United Airlines
7.4
Good
9,044 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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$9,728, Cathay Pacific can have you in St. Louis from Hong Kong in 20h 29m. 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$10,559.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 25 November 2025.
United Airlines flights from Hong Kong Intl to Lambert-St Louis

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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$10,559AverageHK$10,559FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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