Cheap Flights from Singapore (SIN) to St. Louis (STL) from HK$4,641~

View HK$4,641 flight on Wed, 12 Nov 2025Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to St. Louis Lambert Intl. Airport (STL)

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Find Cheap Flights from Singapore (SIN) to St. Louis (STL)

Prices were available within the past 7 days and start at HK$4,641 for one-way flights and HK$7,011 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$7,011 Return, found 6 days ago
HK$7,011
Return
found 6 days ago
Select Asiana Airlines flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$7,011 found 6 days ago
EVA Airways
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$8,502 Return, found 6 days ago
HK$8,502
Return
found 6 days ago
Select EVA Airways flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$8,502 found 6 days ago
Cathay Pacific
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,009 Return, found 6 days ago
HK$10,009
Return
found 6 days ago
Select Cathay Pacific flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,009 found 6 days ago
Japan Airlines
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,251 Return, found 6 days ago
HK$10,251
Return
found 6 days ago
Select Japan Airlines flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,251 found 6 days ago
Air Canada
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,261 Return, found 6 days ago
HK$10,261
Return
found 6 days ago
Select Air Canada flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,261 found 6 days ago
Air Canada
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,319 Return, found 6 days ago
HK$10,319
Return
found 6 days ago
Select Air Canada flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,319 found 6 days ago
All Nippon Airways
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,324 Return, found 6 days ago
HK$10,324
Return
found 6 days ago
Select All Nippon Airways flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,324 found 6 days ago
All Nippon Airways
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,382 Return, found 6 days ago
HK$10,382
Return
found 6 days ago
Select All Nippon Airways flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,382 found 6 days ago
American Airlines
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,551 Return, found 6 days ago
HK$10,551
Return
found 6 days ago
Select American Airlines flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,551 found 6 days ago
Air Canada
Wed, 12 Nov - Sat, 15 Nov
SIN
Singapore
STL
St. Louis
HK$10,579 Return, found 6 days ago
HK$10,579
Return
found 6 days ago
Select Air Canada flight, departing Wed, 12 Nov from Singapore to St. Louis, returning Sat, 15 Nov, priced at HK$10,579 found 6 days ago

Frequently asked questions

How much is a flight from Singapore Airport to Lambert Field?
If you're traveling between Changi Airport and St. Louis Lambert International Airport, round-trip flights start from HK$7,011. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Changi Airport to Lambert Field?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Changi Airport to STL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SIN to Lambert-St. Louis Intl. Airport (STL) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Changi Airport to Lambert-St. Louis Intl. Airport (STL)?
With a flight distance of 15,300 kilometers from SIN (SIN) to STL (STL), this is a long-haul journey. Make sure you drink lots of water and go for a short walk down the aisle from time to time.
Which airlines fly direct from SIN to Lambert Field?
If you want to fly straight from SIN to Lambert Field, you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route.
Are Singapore Airport to STL flight tickets cheaper when they're purchased at the last minute?
Tickets from Changi Airport to St. Louis Lambert International Airport are available up to a year prior to departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Travel information

Origin airport
Changi
Destination airport
Lambert-St. Louis Intl.
Return price
HK$7,011
Distance
15231 km

Book with confidence

Flights from Singapore to St. Louis

Book cheap flights from Singapore (SIN) to St. Louis (STL) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Singapore (SIN) to St. Louis (STL) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Singapore (SIN) to St. Louis (STL) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your St. Louis flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in St. Louis and things to do in St. Louis for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to St. Louis more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to St. Louis is HK$4,641 now!

 

Flights from Singapore to St. Louis

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