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Cheap flights from St. Louis to Singapore from $1,132

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Singapore departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
7:00 am - 9:15 pm
STL
-
SIN
49h 15m
2 stops
Qatar Airways Logo
3:15 am - 11:25 pm
SIN
-
STL
33h 10m
2 stops
$1,132Qatar Airways
Tue, Oct 6 - Mon, Oct 19
Air Canada Logo
4:05 pm - 7:00 am
STL
-
SIN
48h 55m
2 stops
Air Canada Logo
8:40 am - 3:26 pm
SIN
-
STL
44h 46m
2 stops
$1,160Air Canada
Wed, Nov 4 - Tue, Nov 10
Air Canada Logo
5:10 am - 5:15 am
STL
-
SIN
35h 05m
2 stops
Air Canada Logo
6:15 am - 6:42 pm
SIN
-
STL
49h 27m
2 stops
$1,164Air Canada
Thu, Aug 6 - Mon, Aug 31
Lufthansa Logo
7:04 pm - 5:25 pm
STL
-
SIN
32h 21m
2 stops
Lufthansa Logo
12:25 am - 9:13 pm
SIN
-
STL
34h 48m
2 stops
$1,167Lufthansa
Mon, Nov 2 - Tue, Nov 10
Lufthansa Logo
3:30 pm - 4:30 pm
STL
-
SIN
36h 00m
1 stop
Lufthansa Logo
11:40 pm - 1:25 pm
SIN
-
STL
26h 45m
1 stop
$1,169Lufthansa
Tue, Oct 6 - Tue, Oct 20
Lufthansa Logo
3:40 pm - 6:50 am
STL
-
SIN
25h 10m
1 stop
Lufthansa Logo
12:25 am - 9:13 pm
SIN
-
STL
34h 48m
2 stops
$1,173Lufthansa
Wed, Nov 4 - Thu, Nov 12
Lufthansa Logo
1:24 pm - 6:50 am
STL
-
SIN
27h 26m
2 stops
Lufthansa Logo
12:25 am - 9:13 pm
SIN
-
STL
34h 48m
2 stops
$1,177Lufthansa
Wed, Nov 4 - Thu, Nov 12
Lufthansa Logo
7:04 pm - 6:50 am
STL
-
SIN
45h 46m
2 stops
Lufthansa Logo
12:25 am - 9:13 pm
SIN
-
STL
34h 48m
2 stops
$1,183Lufthansa
Tue, Nov 3 - Thu, Nov 12
Lufthansa Logo
7:04 pm - 5:25 pm
STL
-
SIN
32h 21m
2 stops
Lufthansa Logo
11:55 pm - 1:45 pm
SIN
-
STL
27h 50m
1 stop
$1,187Lufthansa
Mon, Nov 2 - Tue, Nov 10
Qatar Airways Logo
8:40 am - 2:55 pm
STL
-
SIN
40h 15m
2 stops
Qatar Airways Logo
3:15 am - 11:56 pm
SIN
-
STL
34h 41m
2 stops
$1,189Qatar Airways
Tue, Nov 3 - Mon, Nov 9

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Air Canada flights from St. Louis to Singapore

Our best Air Canada deals on St. Louis to Singapore flight tickets
Air Canada
Nov 4
STL4:05 pmLambert-St Louis
48h 55m
2 stops
SIN7:00 amSingapore Changi
Nov 10
SIN8:40 amSingapore Changi
44h 46m
2 stops
STL3:26 pmLambert-St Louis
$1,160
Air Canada
Aug 6
STL5:10 amLambert-St Louis
35h 05m
2 stops
SIN5:15 amSingapore Changi
Aug 31
SIN6:15 amSingapore Changi
49h 27m
2 stops
STL6:42 pmLambert-St Louis
$1,164
Air Canada
Aug 7
STL12:10 pmLambert-St Louis
28h 05m
2 stops
SIN5:15 amSingapore Changi
Aug 30
SIN11:55 pmSingapore Changi
55h 47m
2 stops
STL6:42 pmLambert-St Louis
$1,201

Qatar Airways flights from St. Louis to Singapore

Our best Qatar Airways deals on St. Louis to Singapore flight tickets
Qatar Airways
Oct 6
STL7:00 amLambert-St Louis
49h 15m
2 stops
SIN9:15 pmSingapore Changi
Oct 19
SIN3:15 amSingapore Changi
33h 10m
2 stops
STL11:25 pmLambert-St Louis
$1,132
Qatar Airways
Nov 3
STL8:40 amLambert-St Louis
40h 15m
2 stops
SIN2:55 pmSingapore Changi
Nov 9
SIN3:15 amSingapore Changi
34h 41m
2 stops
STL11:56 pmLambert-St Louis
$1,189
Qatar Airways
Nov 3
STL8:40 amLambert-St Louis
40h 15m
2 stops
SIN2:55 pmSingapore Changi
Nov 11
SIN3:15 amSingapore Changi
34h 41m
2 stops
STL11:56 pmLambert-St Louis
$1,197

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated June 23, 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 round-trip

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 10/6

7:00 am-9:15 pm

2 stops49h 15m

Singapore Changi

Mon 10/19

3:15 am-11:25 pm

2 stops33h 10m

$1,132

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 11/4

4:05 pm-7:00 am

2 stops48h 55m

Singapore Changi

Tue 11/10

8:40 am-3:26 pm

2 stops44h 46m

$1,160

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 8/6

5:10 am-5:15 am

2 stops35h 05m

Singapore Changi

Mon 8/31

6:15 am-6:42 pm

2 stops49h 27m

$1,164

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 11/2

7:04 pm-5:25 pm

2 stops32h 21m

Singapore Changi

Tue 11/10

12:25 am-9:13 pm

2 stops34h 48m

$1,167

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 10/6

3:30 pm-4:30 pm

1 stop36h 00m

Singapore Changi

Tue 10/20

11:40 pm-1:25 pm

1 stop26h 45m

$1,169
Quickest round-trip

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 11/4

3:40 pm-6:50 am

1 stop25h 10m

Singapore Changi

Thu 11/12

12:25 am-9:13 pm

2 stops34h 48m

$1,173

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 11/4

1:24 pm-6:50 am

2 stops27h 26m

Singapore Changi

Thu 11/12

12:25 am-9:13 pm

2 stops34h 48m

$1,177

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 11/3

7:04 pm-6:50 am

2 stops45h 46m

Singapore Changi

Thu 11/12

12:25 am-9:13 pm

2 stops34h 48m

$1,183

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 11/2

7:04 pm-5:25 pm

2 stops32h 21m

Singapore Changi

Tue 11/10

11:55 pm-1:45 pm

1 stop27h 50m

$1,187

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 11/3

8:40 am-2:55 pm

2 stops40h 15m

Singapore Changi

Mon 11/9

3:15 am-11:56 pm

2 stops34h 41m

$1,189

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Singapore from

How to get the cheapest flight ticket from St. Louis to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Singapore?

The month of October is, on average, the cheapest month to fly to Singapore from St. Louis, with most prices found around $0. If you aren’t able to travel to Singapore during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,094.

Can stopping save me money on St. Louis to Singapore flights?

You could potentially save up to 9% on your flight if you consider stops on a St. Louis to Singapore flight.

Cheap St. Louis to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Singapore

Fastest flight time

35h 00m

Direct flights

None
The fastest flight from St. Louis to Singapore takes 35h 00m
There are no direct flights from St. Louis to Singapore. There are no popular flight routes from St. Louis to Singapore.
Search flight deals

Frequently asked questions about flying from St. Louis to Singapore

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Singapore?

    Prices for flights from Lambert-St Louis Airport to Singapore are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Singapore?

  • How old do you have to be to fly from Lambert-St Louis Airport to Singapore?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Singapore.

  • What documentation or ID do you need to fly to Singapore?

    The required travel and health documents for your Singapore trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from St. Louis to Singapore

Compare and see reviews for airlines that fly from St. Louis to Singapore with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,126Free CancellationRating
7.4
9,875 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Singapore?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Singapore from St. Louis.

Can I find flights from St. Louis to Singapore with flexible booking policies on momondo?

Yes. All flights to Singapore from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Singapore?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Singapore.

I’m not ready to book a flight from St. Louis to Singapore right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Singapore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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