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HK$4,838+ 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
11 Jun — 18 Jun1
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 12 May 2026.

Sat 11-701:25
HKG
-
STL
2 stops35h 51m
Qatar Airways
Mon 17-813:25
STL
-
HKG
2 stops36h 45m
Qatar Airways
Deal found 8-5HK$9,747
Fri 26-619:40
HKG
-
STL
2 stops28h 00m
Multiple Airlines
Fri 3-708:10
STL
-
HKG
2 stops22h 45m
Multiple Airlines
Deal found 11-5HK$9,997
Fri 11-901:25
HKG
-
STL
2 stops31h 38m
Qatar Airways
Sun 13-916:29
STL
-
HKG
2 stops40h 26m
Qatar Airways
Deal found 10-5HK$10,843
Sat 11-701:25
HKG
-
STL
2 stops35h 51m
Multiple Airlines
Mon 17-806:02
STL
-
HKG
1 stop21h 43m
Multiple Airlines
Deal found 8-5HK$12,361
Sun 12-723:55
HKG
-
STL
1 stop26h 30m
Lufthansa
Mon 17-815:30
STL
-
HKG
1 stop34h 50m
Lufthansa
Deal found 8-5HK$12,917
Fri 26-612:10
HKG
-
STL
1 stop25h 06m
Cathay Pacific
Fri 3-717:13
STL
-
HKG
1 stop21h 52m
Cathay Pacific
Deal found 11-5HK$13,113
Tue 9-611:45
HKG
-
STL
1 stop19h 32m
United Airlines
Tue 16-605:10
STL
-
HKG
2 stops35h 30m
United Airlines
Deal found 10-5HK$14,138

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 12 May 2026.

Return from

HK$9,747

One-way from

HK$4,838
Qatar Airways
  • Qatar Airways
  • 11-7-17-8
  • 4 total stops
  • 72h 36m total
  • Hong Kong to St. Louis
Search Deals
29-9
  • 29-9
  • 2 total stops
  • 31h 11m 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 12 May 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 - STL

HKGSTL

Hong Kong Intl

Sat 11-7

01:25-00:16

2 stops35h 51m

Lambert-St Louis

Mon 17-8

13:25-15:10

2 stops36h 45m

HK$9,747

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 11-9

01:25-23:20

2 stops34h 55m

Lambert-St Louis

Sun 13-9

09:46-21:55

2 stops47h 09m

HK$10,843

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 9-6

11:45-18:17

1 stop19h 32m

Lambert-St Louis

Tue 16-6

05:10-05:40

2 stops35h 30m

HK$14,138
Fastest return journey

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 12-9

11:45-18:24

1 stop19h 39m

Lambert-St Louis

Sun 13-9

16:40-05:00

2 stops23h 20m

HK$14,538
Cheapest one-way
Fastest single journey

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 29-9

20:10-14:21

2 stops31h 11m

HK$4,838

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 21-7

11:45-18:17

1 stop43h 32m

HK$11,156

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 15-7

11:45-18:17

1 stop43h 32m

HK$11,156

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 25-8

18:40-17:03

3 stops35h 23m

HK$12,737

Flights are sorted by cheapest return flights first.

Deals found on 11-5

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 24 hours 0 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. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

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How does Cheapflights help users find flights to St. Louis?

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