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HK$4,950+ Cheap flights to St. Louis

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 29-9. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Flights to St. Louis in 2026

Enter your travel dates to find the best prices.

Cheapest flights to St. Louis
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 10 August 2026.

Sat 19-901:40 -
2 stops35h 19m
Sun 27-919:36 -
2 stops38h 24m
Deal found 6-8HK$7,884
Sun 6-913:00 -
2 stops23h 59m
Sun 13-906:29 -
2 stops28h 01m
Deal found 6-8HK$7,993
Thu 8-1013:00 -
2 stops23h 59m
Sun 18-1007:02 -
2 stops27h 28m
Deal found 6-8HK$8,213
Thu 3-913:00 -
2 stops23h 59m
Thu 24-919:36 -
2 stops38h 24m
Deal found 9-8HK$8,574
Fri 2-1020:10 -
2 stops28h 20m
Fri 23-1008:30 -
2 stops35h 45m
Deal found 9-8HK$8,966
Tue 27-1013:30 -
2 stops23h 39m
Fri 30-1006:04 -
1 stop34h 01m
Deal found 6-8HK$9,798
Sun 6-912:45 -
1 stop23h 14m
Sun 13-918:43 -
2 stops22h 32m
Deal found 6-8HK$9,876
Thu 8-1013:25 -
2 stops21h 34m
Sun 18-1006:04 -
1 stop23h 51m
Deal found 6-8HK$9,900
Sun 20-923:25 -
1 stop27h 00m
Sun 27-915:30 -
1 stop34h 50m
Deal found 6-8HK$11,508

Find flight deals to St. Louis

Find the latest flights to St. Louis in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 10 August 2026.

Return from

HK$7,884

One-way from

HK$4,950
19-9-27-9
  • 19-9-27-9
  • 4 total stops
  • 73h 43m total
  • Hong Kong to St. Louis
Search Deals
29-9
  • 29-9
  • 2 total stops
  • 35h 28m total
  • Hong Kong to St. Louis
Search Deals

Cheapflights Fare Finder

 
Locate flights to St. Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 10 August 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Thu 8-10

13:00-23:59

2 stops23h 59m

Lambert-St Louis

Sun 18-10

07:02-23:30

2 stops27h 28m

HK$8,213

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Thu 3-9

13:00-23:59

2 stops23h 59m

Lambert-St Louis

Thu 24-9

19:36-23:00

2 stops38h 24m

HK$8,574

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Tue 27-10

13:30-00:09

2 stops23h 39m

Lambert-St Louis

Fri 30-10

06:04-05:05

1 stop34h 01m

HK$9,798

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Sun 6-9

12:45-22:59

1 stop23h 14m

Lambert-St Louis

Sun 13-9

18:43-06:15

2 stops22h 32m

HK$9,876

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Thu 8-10

13:25-21:59

2 stops21h 34m

Lambert-St Louis

Sun 18-10

06:04-18:55

1 stop23h 51m

HK$9,900

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Sun 20-9

23:25-13:25

1 stop27h 00m

Lambert-St Louis

Sun 27-9

15:30-15:20

1 stop34h 50m

HK$11,508

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Sun 6-9

23:25-13:25

1 stop27h 00m

Lambert-St Louis

Sun 13-9

15:30-15:20

1 stop34h 50m

HK$12,488

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Fri 2-10

16:05-23:43

1 stop20h 38m

Lambert-St Louis

Fri 23-10

05:40-05:10

1 stop34h 30m

HK$12,669
Fastest return journey

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Tue 27-10

16:30-22:00

1 stop18h 30m

Lambert-St Louis

Fri 30-10

19:10-04:35

1 stop20h 25m

HK$12,763
Cheapest one-way
Fastest single journey

Hong KongSt. Louis

HKG Hong Kong Intl - STL Lambert-St Louis

HKGSTL

Hong Kong Intl

Tue 29-9

20:10-18:38

2 stops35h 28m

HK$4,950

Flights are sorted by cheapest return flights first.

Deals found on 10-8

Sorted by cheapest first

Best time to book a flight to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 to St. Louis

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

How long is the flight to St. Louis?

On average, a flight from Hong Kong to St. Louis takes 23 hours 59 minutes. Flights to St. Louis from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

FAQs about flying to St. Louis

  • What airport do you fly into for flights to St. Louis?

    Lambert-St Louis (STL), located 20.4 km from the city centre, is the airport you fly into when you book flights to St. Louis.

  • Can I find cheaper flights to St. Louis if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Louis on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Does Lambert-St Louis have rental cars?

    Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Lambert-St Louis?

    Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. St Ann Townhome Less Than 1 Mi to International Airport! is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

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