Singapore

$911+ Cheap flights from St. Louis (STL) to Singapore

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Jul 21 — Jul 281
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Singapore with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Singapore

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 June 21, 2026.

This FlightHub deal was found by Cheapflights users on 6/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:58 am
STL
-
SIN
2 stops33h 02m
Multiple Airlines
Wed 11/118:30 am
SIN
-
STL
2 stops45h 00m
Multiple Airlines
Deal found 6/19$1,164
This oojo deal was found by Cheapflights users on 6/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:01 am
STL
-
SIN
2 stops32h 49m
Qatar Airways
Thu 9/173:15 am
SIN
-
STL
2 stops34h 12m
Qatar Airways
Deal found 6/16$1,183
This Air Canada deal was found by Cheapflights users on 6/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:15 pm
STL
-
SIN
2 stops48h 45m
Air Canada
Tue 12/158:50 am
SIN
-
STL
2 stops44h 40m
Air Canada
Deal found 6/16$1,248
This FlightHub deal was found by Cheapflights users on 6/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1112:10 pm
STL
-
SIN
2 stops52h 05m
Air Canada
Sat 8/17:00 am
SIN
-
STL
2 stops50h 43m
Air Canada
Deal found 6/20$1,323
This lastminute.com deal was found by Cheapflights users on 6/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:00 am
STL
-
SIN
2 stops40h 45m
Cathay Pacific
Mon 8/2412:45 pm
SIN
-
STL
2 stops47h 57m
Cathay Pacific
Deal found 6/17$1,449
This oojo deal was found by Cheapflights users on 6/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:39 am
STL
-
SIN
2 stops46h 36m
Qatar Airways
Thu 7/167:40 pm
SIN
-
STL
2 stops41h 36m
Qatar Airways
Deal found 6/17$1,477
This Booking.com deal was found by Cheapflights users on 6/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:40 pm
STL
-
SIN
1 stop35h 25m
Lufthansa
Tue 11/102:45 am
SIN
-
STL
1 stop25h 00m
Lufthansa
Deal found 6/19$1,545
This Travelocity deal was found by Cheapflights users on 6/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:15 pm
STL
-
SIN
2 stops35h 50m
Multiple Airlines
Tue 12/1511:55 pm
SIN
-
STL
1 stop27h 50m
Multiple Airlines
Deal found 6/16$1,559
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/212:15 pm
STL
-
SIN
3 stops34h 00m
Multiple Airlines
Tue 6/2310:00 pm
SIN
-
STL
2 stops51h 21m
Multiple Airlines
Deal found 6/17$1,593
This oojo deal was found by Cheapflights users on 6/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:39 am
STL
-
SIN
2 stops46h 36m
Qatar Airways
Mon 7/207:40 pm
SIN
-
STL
2 stops41h 19m
Qatar Airways
Deal found 6/19$1,597
This oojo deal was found by Cheapflights users on 6/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:02 am
STL
-
SIN
2 stops50h 13m
Qatar Airways
Sun 7/267:40 pm
SIN
-
STL
2 stops41h 36m
Qatar Airways
Deal found 6/20$1,598

Find flight deals from St. Louis to Singapore

Keep the following information in mind while searching for St. Louis to Singapore flight deals. Data was last updated June 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,164
(FlightHub)

One-way from

$911
(IEagle)

Popular in

February

Cheapest in

November

Average price

$1,603
Provider with most accurate pricing for Lambert-St Louis-Singapore Changi flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Singapore Changi flights.
From Lambert-St Louis to Singapore
One-way flight from Lambert-St Louis to Singapore
Highest demand for flights based on searches. 11% potential increase in price ($226 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($84 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 21, 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

Sun 8/9

6:00 am-11:45 am

2 stops40h 45m

Singapore Changi

Mon 8/24

12:45 pm-11:42 pm

2 stops47h 57m

$1,449

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 11/24

4:15 pm-6:05 pm

2 stops35h 50m

Singapore Changi

Tue 12/15

11:55 pm-1:45 pm

1 stop27h 50m

$1,559

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 7/2

2:31 pm-9:15 pm

2 stops41h 44m

Singapore Changi

Tue 7/7

3:15 am-12:16 am

2 stops34h 01m

$1,612

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 8/3

2:31 pm-9:15 pm

2 stops41h 44m

Singapore Changi

Sun 8/9

3:15 am-11:59 pm

2 stops33h 44m

$1,656

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 8/9

7:05 pm-4:30 pm

2 stops32h 25m

Singapore Changi

Mon 8/24

11:40 pm-1:25 pm

1 stop26h 45m

$1,714
Quickest round-trip

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 8/3

7:23 pm-6:15 am

1 stop21h 52m

Singapore Changi

Mon 8/10

8:35 pm-3:38 pm

2 stops32h 03m

$1,892

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 7/20

7:23 pm-6:15 am

1 stop21h 52m

Singapore Changi

Sun 7/26

11:05 am-11:44 pm

2 stops49h 39m

$1,902

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 7/7

6:02 am-9:15 pm

2 stops50h 13m

Singapore Changi

Sun 8/2

7:40 pm-11:59 pm

2 stops41h 19m

$1,906

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 7/13

2:40 pm-1:50 pm

3 stops34h 10m

Singapore Changi

Mon 7/20

6:15 am-8:22 pm

2 stops27h 07m

$1,971

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 7/17

6:01 am-6:15 am

2 stops35h 14m

Singapore Changi

Fri 7/24

8:45 am-6:17 pm

1 stop22h 32m

$1,992

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Singapore
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated June 21, 2026.
Read through reviews of airlines operating flights from St. Louis to Singapore, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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.
  • What airport do you fly from for flights from St. Louis to Singapore?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Singapore. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    Airlines like Qatar Airways, Air Canada, and Cathay Pacific fly from St. Louis to Singapore in about 32h 49m. The time it takes to get you to your destination can typically vary by up to 15h 56m. The distance between St. Louis and Singapore is about 9513 mi. This flight may include one or multiple stops.

  • 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 vacation 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.

Top airline flying from St. Louis to Singapore

Discover the top airline that operate flights from St. Louis to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,126Average$1,474FlexibilityNo cancel feeOn-time69%

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.