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St. Louis

$3,437+ Cheap flights from Chengdu (CTU) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
CTU — STL
May 31 — Jun 71
Sun 5/31
Sun 6/7
1 adult, Economy
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Cheap flight deals from Chengdu to St. Louis

Cheapest flights from Chengdu to St. Louis
Explore the most affordable flight options available from Chengdu to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.

This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:00 am
CTU
-
STL
3 stops44h 38m
United Airlines
Fri 10/237:00 am
STL
-
CTU
2 stops24h 45m
United Airlines
Deal found 4/29$3,437
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:45 pm
CTU
-
STL
3 stops40h 53m
United Airlines
Sat 12/57:06 pm
STL
-
CTU
2 stops58h 39m
United Airlines
Deal found 4/26$3,449

Find flight deals from Chengdu to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Chengdu (CTU) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$3,437
(United Airlines)
Provider with most accurate pricing for Chengdu-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chengdu-Lambert-St Louis flights.
Search Deals
From Chengdu to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chengdu to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2026.
Use the filters below to find and compare flights from Chengdu to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChengduSt. Louis

CTU - STL

CTUSTL

Chengdu

Mon 10/19

8:00 am-3:38 pm

3 stops44h 38m

Lambert-St Louis

Fri 10/23

7:00 am-8:45 pm

2 stops24h 45m

$3,437

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Chengdu-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chengdu-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chengdu-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chengdu-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chengdu-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chengdu to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Chengdu with our price prediction graph.
Estimated round-trip 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.

Related info for your journey

Find useful and relevant information for your journey from Chengdu to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chengdu to St. Louis?

    For as low as $3,437, United Airlines can have you in St. Louis from Chengdu in 44h 38m. Chengdu and St. Louis are separated by a distance of 7553 mi.

  • Can I find deals for flights from Chengdu to St. Louis that include hotel bookings?

    Yes. In addition to deals on Chengdu to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chengdu to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chengdu to St. Louis.

  • Can I find deals for business class flights from Chengdu to St. Louis?

    Yes. Cheapflights offers flight deals from Chengdu to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
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O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
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Wentzville
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Chesterfield
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