Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Singapore from $1,016

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 1/20. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
11:05 am - 5:40 amSTL-SIN
28h 35m2 stops
Cathay Pacific Logo
12:55 pm - 6:14 pmSIN-STL
43h 19m2 stops
$1,016Cathay Pacific
Find Deal
mar., ene. 20 - mar., ene. 27
Cathay Pacific Logo
11:05 am - 5:40 amSTL-SIN
28h 35m2 stops
Cathay Pacific Logo
1:25 am - 6:16 pmSIN-STL
30h 51m2 stops
$1,018Cathay Pacific
Find Deal
mar., ene. 20 - lun., ene. 26
United Airlines Logo
5:45 pm - 8:15 pmSTL-SIN
36h 30m2 stops
United Airlines Logo
10:20 pm - 9:23 amSIN-STL
25h 03m2 stops
$1,026United Airlines
Find Deal
lun., ene. 5 - mié., feb. 11
United Airlines Logo
8:30 am - 6:55 amSTL-SIN
32h 25m2 stops
United Airlines Logo
10:20 pm - 5:11 amSIN-STL
20h 51m1 stop
$1,031United Airlines
Find Deal
jue., ene. 15 - jue., ene. 22
United Airlines Logo
9:57 am - 6:55 amSTL-SIN
30h 58m2 stops
United Airlines Logo
10:10 am - 11:59 pmSIN-STL
27h 49m2 stops
$1,035United Airlines
Find Deal
jue., ene. 15 - jue., ene. 22
American Airlines Logo
6:00 am - 12:50 amSTL-SIN
28h 50m2 stops
American Airlines Logo
2:20 am - 1:03 pmSIN-STL
24h 43m2 stops
$1,048American Airlines
Find Deal
jue., ene. 15 - mié., ene. 21
Cathay Pacific Logo
7:04 am - 1:05 pmSTL-SIN
40h 01m2 stops
Cathay Pacific Logo
10:00 am - 6:16 pmSIN-STL
46h 16m2 stops
$1,049Cathay Pacific
Find Deal
jue., ene. 29 - lun., feb. 2
Cathay Pacific Logo
7:04 am - 5:40 amSTL-SIN
32h 36m2 stops
Cathay Pacific Logo
8:15 pm - 11:48 pmSIN-STL
41h 33m2 stops
$1,075Cathay Pacific
Find Deal
mar., feb. 10 - dom., mar. 1
United Airlines Logo
5:00 pm - 8:00 amSTL-SIN
25h 00m1 stop
United Airlines Logo
10:45 am - 10:13 amSIN-STL
61h 28m2 stops
$1,090United Airlines
Find Deal
mar., feb. 10 - dom., mar. 1
United Airlines Logo
5:00 pm - 8:00 amSTL-SIN
25h 00m1 stop
United Airlines Logo
10:20 pm - 5:11 amSIN-STL
20h 51m1 stop
$1,107United Airlines
Find Deal
vie., ene. 16 - sáb., ene. 31

Cathay Pacific flights from St. Louis to Singapore

Our best Cathay Pacific deals on St. Louis to Singapore flight tickets
Cathay Pacific
Jan 20
STL11:05 amLambert-St Louis
28h 35m
2 stops
SIN5:40 amSingapore Changi
Jan 27
SIN12:55 pmSingapore Changi
43h 19m
2 stops
STL6:14 pmLambert-St Louis
$1,016
Find similar
Cathay Pacific
Jan 20
STL11:05 amLambert-St Louis
28h 35m
2 stops
SIN5:40 amSingapore Changi
Jan 26
SIN1:25 amSingapore Changi
30h 51m
2 stops
STL6:16 pmLambert-St Louis
$1,018
Find similar
Cathay Pacific
Jan 29
STL7:04 amLambert-St Louis
40h 01m
2 stops
SIN1:05 pmSingapore Changi
Feb 2
SIN10:00 amSingapore Changi
46h 16m
2 stops
STL6:16 pmLambert-St Louis
$1,049
Find similar

United Airlines flights from St. Louis to Singapore

Our best United Airlines deals on St. Louis to Singapore flight tickets
United Airlines
Jan 5
STL5:45 pmLambert-St Louis
36h 30m
2 stops
SIN8:15 pmSingapore Changi
Feb 11
SIN10:20 pmSingapore Changi
25h 03m
2 stops
STL9:23 amLambert-St Louis
$1,026
Find similar
United Airlines
Jan 15
STL8:30 amLambert-St Louis
32h 25m
2 stops
SIN6:55 amSingapore Changi
Jan 22
SIN10:20 pmSingapore Changi
20h 51m
1 stop
STL5:11 amLambert-St Louis
$1,031
Find similar
United Airlines
Jan 15
STL9:57 amLambert-St Louis
30h 58m
2 stops
SIN6:55 amSingapore Changi
Jan 22
SIN10:10 amSingapore Changi
27h 49m
2 stops
STL11:59 pmLambert-St Louis
$1,035
Find similar

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 diciembre 1, 2025.
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

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

mar. 1/20

11:05 am-5:40 am

2 stops28h 35m

Singapore Changi

mar. 1/27

12:55 pm-6:14 pm

2 stops43h 19m

$1,016

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

mar. 1/20

11:05 am-5:40 am

2 stops28h 35m

Singapore Changi

lun. 1/26

1:25 am-6:16 pm

2 stops30h 51m

$1,018

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

lun. 1/5

5:45 pm-8:15 pm

2 stops36h 30m

Singapore Changi

mié. 2/11

10:20 pm-9:23 am

2 stops25h 03m

$1,026

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

jue. 1/15

8:30 am-6:55 am

2 stops32h 25m

Singapore Changi

jue. 1/22

10:20 pm-5:11 am

1 stop20h 51m

$1,031

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

jue. 1/15

9:57 am-6:55 am

2 stops30h 58m

Singapore Changi

jue. 1/22

10:10 am-11:59 pm

2 stops27h 49m

$1,035

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

jue. 1/15

6:00 am-12:50 am

2 stops28h 50m

Singapore Changi

mié. 1/21

2:20 am-1:03 pm

2 stops24h 43m

$1,048

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

jue. 1/29

7:04 am-1:05 pm

2 stops40h 01m

Singapore Changi

lun. 2/2

10:00 am-6:16 pm

2 stops46h 16m

$1,049

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

mar. 2/10

7:04 am-5:40 am

2 stops32h 36m

Singapore Changi

dom. 3/1

8:15 pm-11:48 pm

2 stops41h 33m

$1,075

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

mar. 2/10

5:00 pm-8:00 am

1 stop25h 00m

Singapore Changi

dom. 3/1

10:45 am-10:13 am

2 stops61h 28m

$1,090

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

vie. 1/16

5:00 pm-8:00 am

1 stop25h 00m

Singapore Changi

sáb. 1/31

10:20 pm-5:11 am

1 stop20h 51m

$1,107

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 day to depart on your flight to Singapore?

The cheapest day to depart from St. Louis to Singapore is on a Tuesday when prices can be found for as low as $1,370. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,691.

What is the cheapest time of day to depart on your flight to Singapore?

In the evening is the cheapest time of day to fly from St. Louis to Singapore when you can find flight prices for as low as $1,420. Flying to Singapore in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,572 on average. Flights to Singapore from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

28h 35m

Direct flights

None
The fastest flight from St. Louis to Singapore takes 28h 35m
There are no direct flights from St. Louis to Singapore. There are no popular flight routes from St. Louis to Singapore.
Search flight deals

  • 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 $1,094Free CancellationRating
7.4
9,056 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.

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mié. 12/31
mié. 1/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Singapore

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo
Flights to Singaporefrom $521