Find flights
When to book
FAQs

Cheap flights from St. Louis to Singapore from S$ 766

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 27-10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. Louis to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis to Singapore
Explore the most affordable flight options available from St. Louis to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Sun 12-714:40
STL
-
SIN
2 stops45h 05m
Air Canada
Mon 27-706:15
SIN
-
STL
2 stops44h 47m
Air Canada
Deal found 6-6S$ 1,588
Mon 13-714:40
STL
-
SIN
2 stops49h 35m
Air Canada
Mon 20-722:00
SIN
-
STL
2 stops53h 02m
Air Canada
Deal found 8-6S$ 1,615
Mon 13-706:02
STL
-
SIN
2 stops50h 13m
Qatar Airways
Mon 20-719:40
SIN
-
STL
2 stops41h 19m
Qatar Airways
Deal found 4-6S$ 1,875
Tue 7-712:10
STL
-
SIN
2 stops28h 05m
Air Canada
Tue 14-707:00
SIN
-
STL
2 stops48h 42m
Air Canada
Deal found 7-6S$ 1,901
Thu 26-1114:50
STL
-
SIN
2 stops27h 55m
Qatar Airways
Sat 19-1220:15
SIN
-
STL
2 stops41h 44m
Qatar Airways
Deal found 4-6S$ 1,964
Mon 6-719:56
STL
-
SIN
2 stops39h 24m
Multiple Airlines
Sun 12-719:40
SIN
-
STL
2 stops41h 19m
Multiple Airlines
Deal found 9-6S$ 1,979
Wed 8-719:05
STL
-
SIN
2 stops32h 25m
Lufthansa
Mon 3-823:40
SIN
-
STL
2 stops29h 06m
Lufthansa
Deal found 4-6S$ 2,120
Wed 1-713:19
STL
-
SIN
2 stops40h 11m
Finnair
Mon 13-721:35
SIN
-
STL
2 stops35h 18m
Finnair
Deal found 8-6S$ 2,159
Thu 26-1118:45
STL
-
SIN
2 stops32h 40m
Lufthansa
Sat 19-1223:55
SIN
-
STL
1 stop27h 50m
Lufthansa
Deal found 4-6S$ 2,216
Sun 12-715:30
STL
-
SIN
1 stop36h 00m
Lufthansa
Mon 27-723:40
SIN
-
STL
1 stop26h 45m
Lufthansa
Deal found 6-6S$ 2,232

Find flight deals from St. Louis to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Singapore (SIN). 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 9 June 2026.

Round-trip from

S$ 1,588

One-way from

S$ 766

Popular in

February

Cheapest in

November

Average price

S$ 2,241
Air Canada
  • Air Canada
  • 12-7-27-7
  • 4 total stops
  • 89h 52m total
  • St. Louis to Singapore
Search Deals
Qatar Airways
  • Qatar Airways
  • 27-10
  • 2 total stops
  • 42h 17m total
  • St. Louis to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (S$ 421 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 147 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from St. Louis to Singapore 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 200,618 searches. Data last updated 9 June 2026.
Use the filters below to find and compare flights from St. Louis to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 13-7

19:56-00:20

2 stops39h 24m

Singapore Changi

Mon 20-7

23:40-13:25

1 stop26h 45m

S$ 2,355

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 24-7

09:06-06:15

2 stops32h 09m

Singapore Changi

Fri 31-7

20:35-16:33

2 stops32h 58m

S$ 2,573
Fastest return journey

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 13-7

19:23-06:15

1 stop21h 52m

Singapore Changi

Mon 20-7

08:45-18:17

1 stop22h 32m

S$ 2,825

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 6-7

19:23-06:15

1 stop21h 52m

Singapore Changi

Sun 12-7

08:45-18:17

1 stop22h 32m

S$ 3,146

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 6-7

17:58-18:30

2 stops35h 32m

Singapore Changi

Sun 12-7

21:35-00:16

2 stops39h 41m

S$ 3,382

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 6-7

19:56-20:45

2 stops35h 49m

Singapore Changi

Sun 12-7

20:45-23:59

1 stop40h 14m

S$ 5,920

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 6-7

15:30-16:30

1 stop36h 00m

Singapore Changi

Sun 12-7

23:40-13:25

1 stop26h 45m

S$ 6,295
Cheapest one-way

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 27-10

07:38-14:55

2 stops42h 17m

S$ 766

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 27-10

10:35-21:55

3 stops46h 20m

S$ 830
Fastest single journey

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 27-10

08:30-07:00

1 stop33h 30m

S$ 1,587

Flights are sorted by cheapest return flights first.

Deals found on 6-6

Sorted by cheapest first

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

Have a flexible travel schedule? Discover the best time to fly to Singapore from 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 from St. Louis to Singapore

How much does it cost for a return flight from St. Louis to Singapore?

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Singapore. 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 St. Louis to Singapore?

    Airlines like United Airlines fly from St. Louis to Singapore in about 32h 09m. The time it takes to get you to your destination can typically vary by up to . The distance between St. Louis and Singapore is about 15310 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Singapore 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Singapore?

Cheapflights helps you search for flights from St. Louis to Singapore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Singapore?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Singapore for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to Singapore with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Singapore, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Singapore become cheaper?

Of course! You can now track prices for flights from St. Louis to Singapore and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.