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$507+ Cheap flights from St. Louis (STL) to Hong Kong (HKG)

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HKG
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Hong Kong

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Hong Kong (HKG). 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 September 17, 2025.

Round-trip from

$917
(Travelocity)

One-way from

$507
(Trip.com)

Popular in

June

Cheapest in

April

Average price

$1,276
From Lambert-St Louis to Hong Kong Intl
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One-way flight from Lambert-St Louis to Hong Kong Intl
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Highest demand for flights based on searches. 10% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Air Canada deal was found by Cheapflights users on 9/16. 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.
Sun 11/94:05 pmSTL - HKG
2 stops40h 25mMultiple Airlines
Tue 11/188:25 pmHKG - STL
2 stops33h 04mMultiple Airlines
Deal found 9/16$931
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:00 amSTL - HKG
2 stops39h 50mMultiple Airlines
Fri 11/79:25 amHKG - STL
2 stops28h 34mMultiple Airlines
Deal found 9/16$998
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:40 pmSTL - HKG
2 stops26h 20mUnited Airlines
Wed 10/2211:15 amHKG - STL
1 stop18h 39mUnited Airlines
Deal found 9/14$1,018
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:15 amSTL - HKG
2 stops24h 40mMultiple Airlines
Wed 10/229:30 amHKG - STL
2 stops20h 02mMultiple Airlines
Deal found 9/14$1,022
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:11 pmSTL - HKG
2 stops22h 49mUnited Airlines
Mon 11/311:25 amHKG - STL
2 stops24h 57mUnited Airlines
Deal found 9/17$1,023
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:29 pmSTL - HKG
1 stop35h 51mUnited Airlines
Tue 11/1810:35 amHKG - STL
1 stop19h 52mUnited Airlines
Deal found 9/16$1,027
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:33 amSTL - HKG
2 stops48h 32mChina Airlines
Thu 10/232:00 pmHKG - STL
2 stops47h 03mChina Airlines
Deal found 9/15$1,059
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:00 amSTL - HKG
2 stops37h 10mChina Airlines
Sun 11/92:05 pmHKG - STL
2 stops39h 13mChina Airlines
Deal found 9/17$1,063
This Ovago deal was found by Cheapflights users on 9/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:42 amSTL - HKG
2 stops40h 08mJapan Airlines
Mon 11/38:30 amHKG - STL
3 stops29h 12mJapan Airlines
Deal found 9/17$1,065
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:15 amSTL - HKG
2 stops22h 30mUnited Airlines
Fri 10/3110:35 amHKG - STL
1 stop18h 52mUnited Airlines
Deal found 9/17$1,068

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 September 17, 2025.
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

Fri 2/13

4:05 pm-12:55 pm

2 stops54h 50m

Hong Kong Intl

Sun 2/22

4:25 pm-3:29 pm

2 stops61h 04m

$990

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 2/11

8:05 am-5:45 am

2 stops31h 40m

Hong Kong Intl

Tue 3/10

12:05 am-12:20 pm

2 stops25h 15m

$1,011

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 2/11

5:00 pm-6:45 am

1 stop23h 45m

Hong Kong Intl

Wed 3/11

10:30 pm-3:21 pm

2 stops29h 51m

$1,018

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 10/15

5:15 am-6:55 pm

2 stops24h 40m

Hong Kong Intl

Wed 10/22

9:30 am-4:32 pm

2 stops20h 02m

$1,022

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 10/20

5:11 pm-5:00 am

2 stops22h 49m

Hong Kong Intl

Mon 11/3

11:25 am-10:22 pm

2 stops24h 57m

$1,023

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 10/15

5:15 am-6:55 pm

2 stops24h 40m

Hong Kong Intl

Wed 10/22

11:15 am-10:00 pm

3 stops23h 45m

$1,023

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 11/9

5:29 pm-7:20 pm

1 stop35h 51m

Hong Kong Intl

Tue 11/18

10:00 am-10:27 pm

2 stops26h 27m

$1,031

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sat 10/18

6:33 am-8:05 pm

2 stops48h 32m

Hong Kong Intl

Thu 10/23

2:00 pm-12:03 am

2 stops47h 03m

$1,059

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Fri 2/13

7:41 am-5:45 am

2 stops32h 04m

Hong Kong Intl

Mon 2/23

12:05 am-12:21 pm

2 stops26h 16m

$1,061

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Thu 10/16

5:15 am-4:45 pm

2 stops22h 30m

Hong Kong Intl

Fri 10/31

10:35 am-4:27 pm

1 stop18h 52m

$1,068

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 15 results
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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, September is the cheapest month in which you can book a flight from St. Louis to Hong Kong (average of $938). Flying from St. Louis to Hong Kong in December is currently the most expensive (average of $1,610). 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.

What is the cheapest time of day to fly from STL to HKG?

Find hourly flight availability from St. Louis to Hong Kong. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Hong Kong in the evening. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

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 September 17, 2025.
Read reviews from past customers who have flown Cathay Pacific, United Airlines, and Air Canada from St. Louis to Hong Kong. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
994 reviews

Entertainment

7.8

Overall

7.6

Comfort

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
994 reviews
Cathay Pacific
7.6
Good
994 reviews

Entertainment

7.8

Overall

7.6

Comfort

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
United Airlines
7.4
Good
8,924 reviews
Cathay Pacific
7.6
Good
994 reviews

Entertainment

7.8

Overall

7.6

Comfort

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Air Canada
7.1
Good
10,000 reviews
Cathay Pacific
7.6
Good
994 reviews

Entertainment

7.8

Overall

7.6

Comfort

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

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.

  • 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 23h 45m. Fly via ANA or United Airlines to get the fastest option. The distance from St. Louis to Hong Kong is about 7929 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Air Canada. Our recent data shows that you can find tickets from as low as $733 on this airline. Additional options worth looking into are United Airlines and Cathay Pacific, starting at $1,179 and $1,331 round-trip. Users have found that Air Canada is 41% 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, September is the cheapest month in which you can book a flight from St. Louis to Hong Kong (average of $938). Flying from St. Louis to Hong Kong in December is currently the most expensive (average of $1,610). 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.
Kansas City to Hong Kong flights
Springfield to Hong Kong flights
Joplin to Hong Kong flights
Columbia to Hong Kong flights

Top 3 airlines flying from St. Louis to Hong Kong

Discover the top 3 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$733Average$859FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,179Average$1,278FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,331Average$1,449FlexibilityNo cancel feeOn-time72%

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