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$398+ Cheap flights from St. Louis (STL) to Hong Kong

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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HKG
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from St. Louis to Hong Kong

Cheapest flights from St. Louis to Hong Kong
Explore the most affordable flight options available from St. Louis to Hong Kong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This Air Canada deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:20 pm
STL
-
HKG
2 stops25h 50m
Air Canada
Wed 6/179:45 am
HKG
-
STL
2 stops23h 20m
Air Canada
Deal found 2/16$758
This Air Canada deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/64:05 pm
STL
-
HKG
2 stops48h 10m
Air Canada
Thu 5/79:45 am
HKG
-
STL
2 stops23h 19m
Air Canada
Deal found 2/16$763
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:20 pm
STL
-
HKG
2 stops25h 50m
Air Canada
Fri 5/159:45 am
HKG
-
STL
2 stops47h 20m
Air Canada
Deal found 2/17$770
This Air Canada deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:00 am
STL
-
HKG
2 stops30h 15m
Air Canada
Tue 5/59:45 am
HKG
-
STL
2 stops24h 23m
Air Canada
Deal found 2/14$790
This Air Canada deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:05 pm
STL
-
HKG
2 stops48h 10m
Air Canada
Thu 4/99:45 am
HKG
-
STL
2 stops42h 39m
Air Canada
Deal found 2/16$800
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:20 pm
STL
-
HKG
2 stops25h 50m
Air Canada
Tue 6/239:45 am
HKG
-
STL
2 stops47h 20m
Air Canada
Deal found 2/17$814
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:10 pm
STL
-
HKG
2 stops28h 00m
Air Canada
Tue 10/209:45 am
HKG
-
STL
2 stops45h 56m
Air Canada
Deal found 2/17$846
This Orbitz deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/114:05 pm
STL
-
HKG
2 stops24h 10m
Air Canada
Thu 4/169:45 am
HKG
-
STL
2 stops26h 11m
Air Canada
Deal found 2/14$855

Find flight deals from St. Louis to Hong Kong

Keep the following information in mind while searching for St. Louis to Hong Kong flight deals. Data was last updated February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(Air Canada)

One-way from

$495
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$1,043
Provider with most accurate pricing for Lambert-St Louis-Hong Kong Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Hong Kong Intl flights.
Search Deals
From Lambert-St Louis to Hong Kong
Search Deals
One-way flight from Lambert-St Louis to Hong Kong
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Hong Kong 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 2,558,603 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from St. Louis to Hong Kong that are best for you.

Fly from

St. Louis

Fly to

Hong Kong

Route

Depart

Return

Price

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

2:20 pm-5:10 am

2 stops25h 50m

Hong Kong Intl

Wed 6/17

9:45 am-8:05 pm

2 stops23h 20m

$758

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

4:05 pm-5:15 am

2 stops48h 10m

Hong Kong Intl

Thu 5/7

9:45 am-8:04 pm

2 stops23h 19m

$763

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 8/12

2:15 pm-5:05 am

2 stops25h 50m

Hong Kong Intl

Wed 8/26

12:20 pm-12:36 am

2 stops25h 16m

$993

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 5/13

1:00 pm-5:10 am

2 stops51h 10m

Hong Kong Intl

Wed 7/22

9:45 am-6:27 pm

2 stops45h 42m

$1,025

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

7:00 am-4:45 pm

1 stop20h 45m

Hong Kong Intl

Tue 5/5

1:25 pm-11:59 pm

1 stop23h 34m

$1,046

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 3/17

4:05 pm-5:40 pm

2 stops36h 35m

$398

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 3/17

6:38 am-7:10 pm

1 stop23h 32m

$583

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 3/17

1:00 pm-11:45 pm

3 stops45h 45m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Best time to book a flight from St. Louis to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from St. Louis with our price prediction graph.
Estimated round-trip 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 St. Louis to Hong Kong

What is the cheapest month to book a flight from St. Louis to Hong Kong?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Hong Kong (average of $776). Flying from St. Louis to Hong Kong in December is currently the most expensive (average of $1,392). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Hong Kong

Get insights into the airlines that provide service to Hong Kong. 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 Hong Kong. Reviews last updated February 18, 2026.
Get a feel of what it's like to fly with Cathay Pacific and United Airlines from St. Louis to Hong Kong by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,167 reviews

Food

7.3

Entertainment

7.8

Boarding

7.9

Overall

7.6

Crew

8.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Robert,Feb 2026

CTS - AKL

Upgrade to Premium Economy was a delightful and unexpected surprise. Highlight of our holiday.
Cathay Pacific
7.6
Good
1,167 reviews
Cathay Pacific
7.6
Good
1,167 reviews

Food

7.3

Entertainment

7.8

Boarding

7.9

Overall

7.6

Crew

8.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Robert,Feb 2026

CTS - AKL

Upgrade to Premium Economy was a delightful and unexpected surprise. Highlight of our holiday.
United Airlines
7.4
Good
9,314 reviews
Cathay Pacific
7.6
Good
1,167 reviews

Food

7.3

Entertainment

7.8

Boarding

7.9

Overall

7.6

Crew

8.1

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Robert,Feb 2026

CTS - AKL

Upgrade to Premium Economy was a delightful and unexpected surprise. Highlight of our holiday.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Hong Kong. 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 from for flights from St. Louis to Hong Kong?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Hong Kong. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

    There are many flights that can get you from St. Louis to Hong Kong in 25h 50m. Fly via Air Canada to get the fastest option. The distance from St. Louis to Hong Kong is about 7929 mi.

  • What are the cheapest airlines flying from St. Louis to Hong Kong round-trip?

    Our cheapest airline available from St. Louis to Hong Kong is United Airlines. Our recent data shows that you can find tickets from as low as $1,043 on this airline. An additional option worth looking into is Cathay Pacific, starting at $1,166. Users have found that United Airlines is 15% cheaper than the other options available to this destination.

  • Can I find deals for flights from St. Louis to Hong Kong that include hotel bookings?

    Yes. In addition to deals on St. Louis to Hong Kong flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Hong Kong?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Hong Kong.

  • Can I find deals for business class flights from St. Louis to Hong Kong?

    Yes. Cheapflights offers flight deals from St. Louis to Hong Kong by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Hong Kong?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Hong Kong (average of $776). Flying from St. Louis to Hong Kong in December is currently the most expensive (average of $1,392). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Hong Kong

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Hong Kong

Discover the top 2 airlines that operate flights from St. Louis to Hong Kong. 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 2,558,603 searches. Data last updated February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,043Average$1,279FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,166Average$1,366FlexibilityNo cancel feeOn-time72%

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