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HK$3,976+ 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 3-12. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
30 Oct — 6 Nov1
1 adult
1 adult, Economy

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 30 September 2025.

Return from

HK$11,493

One-way from

HK$3,976
Cathay Pacific
  • Cathay Pacific
  • 18-2-22-2
  • 2 total stops
  • 41h 40m total
  • Hong Kong to St. Louis
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3-12
  • 3-12
  • 3 total stops
  • 47h 59m total
  • Hong Kong to St. Louis
Search Deals

Find flight deals to St. Louis

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 September 2025.

Sun 5-1019:40HKG - STL
2 stops41h 23mMultiple Airlines
Wed 14-114:50STL - HKG
2 stops29h 20mMultiple Airlines
Deal found 28-9HK$7,696
Sun 5-1015:25HKG - STL
2 stops45h 38mEVA Air
Wed 14-114:50STL - HKG
2 stops37h 40mEVA Air
Deal found 29-9HK$7,742
Sat 4-1001:25HKG - STL
2 stops35h 24mQatar Airways
Wed 14-115:20STL - HKG
2 stops40h 20mQatar Airways
Deal found 28-9HK$9,594
Sun 5-1023:25HKG - STL
2 stops37h 19mLufthansa
Wed 14-115:50STL - HKG
1 stop34h 35mLufthansa
Deal found 29-9HK$12,092
Sun 5-1011:15HKG - STL
1 stop18h 54mUnited Airlines
Wed 14-117:00STL - HKG
1 stop23h 45mUnited Airlines
Deal found 28-9HK$17,850

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 September 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

16:30-22:24

1 stop19h 54m

Lambert-St Louis

Sun 22-2

17:49-05:35

1 stop21h 46m

HK$11,493

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

10:35-21:00

2 stops24h 25m

Lambert-St Louis

Sun 22-2

17:25-19:20

1 stop35h 55m

HK$11,540

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 18-2

18:05-17:56

2 stops37h 51m

Lambert-St Louis

Sun 22-2

12:58-21:40

2 stops42h 42m

HK$11,726

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 17-2

00:05-12:21

2 stops26h 16m

Lambert-St Louis

Sun 22-2

06:45-22:50

2 stops26h 05m

HK$16,255

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 3-12

02:00-11:59

3 stops47h 59m

HK$3,976

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 3-3

15:30-13:52

2 stops36h 22m

HK$4,529

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 13-10

21:10-17:30

2 stops33h 20m

HK$4,583

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Mon 2-3

00:25-18:19

2 stops31h 54m

HK$5,579

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Sun 12-10

01:25-23:49

2 stops35h 24m

HK$5,781

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 3-12

00:25-19:27

2 stops33h 02m

HK$5,781

Flights are sorted by cheapest return flights first.

Deals found on 29-9

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 30 September 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
8,931 reviews
Check prices

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews
Check prices

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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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