Find flights
When to book
Airlines
FAQs

Cheap flights from Hong Kong to St. Louis from HK$4,248

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
7 Sep — 14 Sep1
1 adult

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 2 September 2025.

Round-trip from

HK$10,290

One-way from

HK$4,248
Qatar Airways
  • Qatar Airways
  • 13-2-20-2
  • 4 total stops
  • 84h 55m total
  • Hong Kong to St. Louis
Search Deals
19-9
  • 19-9
  • 3 total stops
  • 49h 56m total
  • Hong Kong to St. Louis
Search Deals

Find flight deals from Hong Kong to St. Louis

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 2 September 2025.

Fri 13-200:25HKG - STL
2 stops35h 19mQatar Airways
Fri 20-206:04STL - HKG
2 stops49h 36mQatar Airways
Deal found 31-8HK$10,290
Wed 18-220:25HKG - STL
2 stops33h 04mAir Canada
Sun 22-216:05STL - HKG
2 stops36h 35mAir Canada
Deal found 1-9HK$11,225
Sat 14-216:10HKG - STL
1 stop20h 14mMultiple Airlines
Fri 20-207:00STL - HKG
2 stops38h 50mMultiple Airlines
Deal found 31-8HK$11,373
Sat 14-216:10HKG - STL
1 stop20h 14mCathay Pacific
Fri 20-211:54STL - HKG
1 stop27h 41mCathay Pacific
Deal found 31-8HK$11,490
Wed 18-216:10HKG - STL
1 stop20h 14mCathay Pacific
Sun 22-217:49STL - HKG
1 stop21h 46mCathay Pacific
Deal found 1-9HK$11,490

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 2 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

Fri 13-2

00:25-21:44

2 stops35h 19m

Lambert-St Louis

Fri 20-2

06:04-21:40

2 stops49h 36m

HK$10,290

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$11,225

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 14-2

16:10-22:24

1 stop20h 14m

Lambert-St Louis

Fri 20-2

07:00-11:50

2 stops38h 50m

HK$11,373

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 14-2

16:10-22:24

1 stop20h 14m

Lambert-St Louis

Fri 20-2

11:54-05:35

1 stop27h 41m

HK$11,490

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

16:10-22:24

1 stop20h 14m

Lambert-St Louis

Sun 22-2

17:49-05:35

1 stop21h 46m

HK$11,490

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 19-9

20:10-09:06

3 stops49h 56m

HK$4,248

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 13-10

21:10-17:30

2 stops33h 20m

HK$4,584

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sun 12-10

01:25-23:49

2 stops35h 24m

HK$5,730

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 18-9

01:25-20:32

2 stops32h 07m

HK$6,283

Flights are sorted by cheapest return flights first.

Deals found on 1-9

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 2 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.
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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$11,225, Qatar Airways 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$10,577.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2 September 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 2 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$10,577AverageHK$10,577FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.