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Cheap flights from Hong Kong to St. Louis from HK$3,976

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 3-12. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — STL
30 Oct — 6 Nov1
1 adult
1 adult, Economy

Cheap 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 September 2025.

Round-trip from

HK$11,493

One-way from

HK$3,976
Cathay Pacific
  • Cathay Pacific
  • 18-2-22-2
  • 2 total stops
  • 41h 40m total
  • Hong Kong to St. Louis
Search Deals
3-12
  • 3-12
  • 3 total stops
  • 47h 59m total
  • Hong Kong to St. Louis
Search Deals

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 30 September 2025.

Sun 5-1019:40HKG - STL
2 stops41h 23mMultiple Airlines
Wed 14-114:50STL - HKG
2 stops29h 20mMultiple Airlines
Deal found 28-9HK$7,696
Sun 5-1015:25HKG - STL
2 stops45h 38mEVA Air
Wed 14-114:50STL - HKG
2 stops37h 40mEVA Air
Deal found 29-9HK$7,742
Sat 4-1001:25HKG - STL
2 stops35h 24mQatar Airways
Wed 14-115:20STL - HKG
2 stops40h 20mQatar Airways
Deal found 28-9HK$9,594
Sun 5-1023:25HKG - STL
2 stops37h 19mLufthansa
Wed 14-115:50STL - HKG
1 stop34h 35mLufthansa
Deal found 29-9HK$12,092
Sun 5-1011:15HKG - STL
1 stop18h 54mUnited Airlines
Wed 14-117:00STL - HKG
1 stop23h 45mUnited Airlines
Deal found 28-9HK$17,850

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 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

Wed 18-2

16:30-22:24

1 stop19h 54m

Lambert-St Louis

Sun 22-2

17:49-05:35

1 stop21h 46m

HK$11,493

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

10:35-21:00

2 stops24h 25m

Lambert-St Louis

Sun 22-2

17:25-19:20

1 stop35h 55m

HK$11,540

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

18:05-17:56

2 stops37h 51m

Lambert-St Louis

Sun 22-2

12:58-21:40

2 stops42h 42m

HK$11,726

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 17-2

00:05-12:21

2 stops26h 16m

Lambert-St Louis

Sun 22-2

06:45-22:50

2 stops26h 05m

HK$16,255

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 3-12

02:00-11:59

3 stops47h 59m

HK$3,976

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

15:30-13:52

2 stops36h 22m

HK$4,529

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 13-10

21:10-17:30

2 stops33h 20m

HK$4,583

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 2-3

00:25-18:19

2 stops31h 54m

HK$5,579

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sun 12-10

01:25-23:49

2 stops35h 24m

HK$5,781

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 3-12

00:25-19:27

2 stops33h 02m

HK$5,781

Flights are sorted by cheapest return flights first.

Deals found on 29-9

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.

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.

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 30 September 2025.
Check out reviews from past customers who have flown with United Airlines from Hong Kong to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,931 reviews
Check prices

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews
Check prices

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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$11,493, Cathay Pacific can have you in St. Louis from Hong Kong in 19h 54m. 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$10,558.

  • 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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Alternative routes for Hong Kong to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Hong Kong to Kansas City flights
Hong Kong to St. Louis flights

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 30 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestHK$10,558AverageHK$10,558FlexibilityNo 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?

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

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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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