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HK$4,445+ 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 5-5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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Best flights to St. Louis
Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 November 2025.

Wed 18-216:30HKG - STL
1 stop20h 51mCathay Pacific
Sun 22-218:50STL - HKG
1 stop20h 45mCathay Pacific
Deal found 11-11HK$11,570
Wed 18-210:35HKG - STL
2 stops23h 51mUnited Airlines
Sun 22-217:25STL - HKG
1 stop35h 55mUnited Airlines
Deal found 11-11HK$11,617

Flights to St. Louis in 2025

Find the latest flights to St. Louis in 2025, 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 14 November 2025.

Return from

HK$11,570

One-way from

HK$4,445
Cathay Pacific
  • Cathay Pacific
  • 18-2-22-2
  • 2 total stops
  • 41h 36m total
  • Hong Kong to St. Louis
Search Deals
China Airlines
  • China Airlines
  • 5-5
  • 2 total stops
  • 40h 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 14 November 2025.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

16:30-23:21

1 stop20h 51m

Lambert-St Louis

Sun 22-2

18:50-05:35

1 stop20h 45m

HK$11,570

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

10:35-20:26

2 stops23h 51m

Lambert-St Louis

Sun 22-2

17:25-19:20

1 stop35h 55m

HK$11,617

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 5-5

20:10-23:55

2 stops40h 45m

HK$4,445

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

21:10-17:35

2 stops34h 25m

HK$4,631

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 5-5

19:40-14:50

3 stops32h 10m

HK$4,717

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 2-3

00:25-19:26

2 stops33h 01m

HK$5,478

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 4-5

01:25-22:29

2 stops34h 04m

HK$6,341

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

16:30-23:21

1 stop20h 51m

HK$6,760

Flights are sorted by cheapest return flights first.

Deals found on 13-11

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

What are the cheapest airlines that fly to St. Louis?

The cheapest airline flying from Hong Kong to St. Louis is United Airlines.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 14 November 2025.
Read through reviews of airlines serving the United States, such as United Airlines. 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.
United Airlines
7.4
Good
9,017 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

  • What is the best airline to fly to St. Louis?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to St. Louis.

  • 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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