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HK$4,723+ 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 14-5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
29 Apr — 6 May1
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 30 March 2026.

Sun 26-400:55
HKG
-
STL
2 stops34h 22m
Qatar Airways
Mon 4-512:27
STL
-
HKG
2 stops39h 18m
Qatar Airways
Deal found 30-3HK$8,827
Wed 4-1100:25
HKG
-
STL
2 stops37h 31m
Qatar Airways
Sun 8-1108:40
STL
-
HKG
2 stops40h 10m
Qatar Airways
Deal found 29-3HK$9,171
Sun 26-400:55
HKG
-
STL
2 stops34h 22m
Multiple Airlines
Mon 4-507:00
STL
-
HKG
1 stop20h 45m
Multiple Airlines
Deal found 30-3HK$11,685
Wed 8-418:15
HKG
-
STL
2 stops41h 09m
Multiple Airlines
Mon 4-512:27
STL
-
HKG
2 stops39h 18m
Multiple Airlines
Deal found 30-3HK$11,983
Thu 5-1111:25
HKG
-
STL
2 stops21h 13m
United Airlines
Sun 8-1119:06
STL
-
HKG
1 stop34h 14m
United Airlines
Deal found 29-3HK$12,547
Thu 5-1116:30
HKG
-
STL
1 stop19h 59m
Cathay Pacific
Sun 8-1108:40
STL
-
HKG
1 stop21h 50m
Cathay Pacific
Deal found 29-3HK$12,766

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 30 March 2026.

Return from

HK$8,827

One-way from

HK$4,723
Qatar Airways
  • Qatar Airways
  • 26-4-4-5
  • 4 total stops
  • 73h 40m total
  • Hong Kong to St. Louis
Search Deals
14-5
  • 14-5
  • 3 total stops
  • 54h 45m 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 30 March 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

Sun 26-4

00:55-22:17

2 stops34h 22m

Lambert-St Louis

Mon 4-5

12:27-16:45

2 stops39h 18m

HK$8,827

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sun 26-4

00:55-22:17

2 stops34h 22m

Lambert-St Louis

Mon 4-5

07:00-16:45

1 stop20h 45m

HK$11,685

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 27-4

11:45-05:50

1 stop31h 05m

Lambert-St Louis

Mon 4-5

08:30-18:55

1 stop21h 25m

HK$12,547

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 27-4

21:10-21:13

3 stops37h 03m

Lambert-St Louis

Mon 4-5

15:20-18:05

3 stops37h 45m

HK$29,464
Fastest return journey

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 6-6

11:45-18:17

1 stop19h 32m

Lambert-St Louis

Sat 20-6

16:45-05:40

2 stops23h 55m

HK$51,786

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Fri 5-6

01:20-14:06

2 stops25h 46m

Lambert-St Louis

Sat 20-6

07:00-21:30

3 stops25h 30m

HK$58,717

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sat 6-6

21:30-21:16

3 stops36h 46m

Lambert-St Louis

Sat 20-6

15:10-18:15

3 stops38h 05m

HK$139,208
Cheapest one-way

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 14-5

15:10-08:55

3 stops54h 45m

HK$4,723

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 13-5

00:55-23:56

2 stops36h 01m

HK$6,031

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 8-4

13:40-23:59

3 stops47h 19m

HK$6,853

Flights are sorted by cheapest return flights first.

Deals found on 28-3

Showing 1-10 of 12 resultsSorted by cheapest first
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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 32 hours 45 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. 3-bedroom building in serene Saint Ann with WiFi, AC 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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