$440 Find Cheap Flights from St. Louis to Hong Kong

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Hong Kong departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap St. Louis to Hong Kong Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Hong Kong that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Hong Kong

Tue, May 12 - Wed, Jun 17
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
23h 20m
2 stops
$731Air Canada
Tue, May 12 - Wed, Jun 17
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
23h 20m
2 stops
$732Air Canada
Tue, May 12 - Wed, Aug 5
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m
2 stops
Air Canada Logo
9:45 am - 6:27 pm
HKG
-
STL
45h 42m
2 stops
$817Air Canada
Tue, Apr 28 - Mon, May 11
Air Canada Logo
9:10 am - 5:15 am
STL
-
HKG
31h 05m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$818Air Canada
Sat, Apr 25 - Wed, May 13
Air Canada Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$821Air Canada
Mon, Apr 27 - Tue, May 12
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
32h 30m
2 stops
Air Canada Logo
9:45 am - 12:06 pm
HKG
-
STL
39h 21m
2 stops
$823Air Canada
Sat, Apr 25 - Tue, May 12
Air Canada Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m
2 stops
Air Canada Logo
9:45 am - 12:06 pm
HKG
-
STL
39h 21m
2 stops
$826Air Canada
Mon, Apr 6 - Thu, May 7
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
56h 30m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$829Air Canada
Wed, May 13 - Wed, Jul 22
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m
2 stops
Air Canada Logo
9:45 am - 6:27 pm
HKG
-
STL
45h 42m
2 stops
$867Air Canada
Fri, Apr 24 - Wed, May 13
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
32h 30m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$868Air Canada
Booking Insights

KAYAK's insights & trends for St. Louis to Hong Kong flights

Get data-powered insights and trends into flights from St. Louis to Hong Kong to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Hong Kong?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Hong Kong, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Hong Kong is April, when tickets cost $942 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $1,448 and $1,441 respectively.

Good to know

Low seasonApril
Cheapest flight$440
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from St. Louis to Hong Kong

FAQs - booking Hong Kong flights

  • How does KAYAK find such low prices on flights from St. Louis to Hong Kong?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Hong Kong.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Hong Kong?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Hong Kong is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Hong Kong?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Hong Kong with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Hong Kong?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Hong Kong up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Hong Kong

 
Need help choosing which airline to fly with from St. Louis to Hong Kong? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1148 reviews
7.7Entertainment
7.6Comfort
7.3Food
7.9Boarding
8.1Crew
Airline reviews

great experience. better than all other airlines flying this route.

10.0 ExcellentDipendra, Jan 2026
BKK - HKG
Read more Cathay Pacific reviews

great experience. better than all other airlines flying this route.

We flew economy light. We did not want to check bags and we had free 1 bag, but just had back packs with small personal item. Try as we may could only get bags down to 17lbs each. So we put 2 lbs from one bag into other and checked it. I think if someone has a checked bag allowance and chose not to use it , it would benefit both parties to bump carry on weight up to the next level of 22lbs or 10kgs. Just a thought.

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Few vegetarian food options. Incorporating one per meal service would be best and captures a wider audience than just vegetarians (individuals with religious meat restrictions can also eat vegetarian).

Flight from Hong Kong to LAX was late, the plane was grubby, overcrowded and hot. I recently flew Starlux and that was a MUCH better experience.

The crew, pilots and flight attendants were all amazing. What could be better is reinforcing that seats cannot be reclined at departure and landing. I had a person seated in front of me who had her seat all the way inclined, including during take-off - after the crew asked her to seat upright. Cathay Pacific should reinforce this safety request and perhaps penalize those who don't follow it. I felt very unsafe with this person limiting my space and perhaps putting my life in danger in the "unlikely" case of an emergency.

Given the Business class airfare, the food variety and quality both were substandard. The crew was not interested to serve other choices and work hard to provide alternatives. Very disappointing food service.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

Great service from crews and delicious dishes, snacks and drinks. Egg tarts and local dimsum are delicious.

The experience was efficient, on time, and provided great service.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

Everything you need to know for your flight from St. Louis to Hong Kong

Information on your arrival and departure airports