$1,002+ Cheap flights from St. Louis (STL) to Singapore (SIN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Mar 15 — Mar 221
1 adult, Economy
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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
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 March 10, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,009 (Air Canada) |
Popular in | August |
Cheapest in | November |
Average price | $1,347 |
Find flight deals from St. Louis to Singapore
Cheapest flights from St. Louis to SingaporeExplore 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 March 10, 2025.
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 March 10, 2025.
This Air Canada deal was found by Cheapflights users on 3/8. 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 9/301:30 pmSTL - SIN
2 stops28h 35mAir Canada
Sat 10/119:10 amSIN - STL
2 stops47h 47mAir Canada
Deal found 3/8![Air Canada logo]()
$1,002
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Tue 4/83:29 pmSTL - SIN
2 stops28h 31mQatar Airways
Tue 4/156:45 pmSIN - STL
2 stops40h 27mQatar Airways
Deal found 3/10![Qatar Airways logo]()
$1,075
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/285:54 pmSTL - SIN
1 stop23h 51mUnited Airlines
Wed 5/79:00 amSIN - STL
1 stop20h 52mUnited Airlines
Deal found 3/8![United Airlines logo]()
$1,093
This Gurufare deal was found by Cheapflights users on 3/8. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:44 amSTL - SIN
2 stops27h 36mJapan Airlines
Fri 10/108:05 amSIN - STL
2 stops24h 56mJapan Airlines
Deal found 3/8![Japan Airlines logo]()
$1,158
This oojo deal was found by Cheapflights users on 3/9. 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.
Sun 5/116:52 amSTL - SIN
2 stops28h 58mCathay Pacific
Tue 5/201:50 amSIN - STL
2 stops29h 43mCathay Pacific
Deal found 3/9![Cathay Pacific logo]()
$1,473
This Lufthansa deal was found by Cheapflights users on 3/9. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:45 pmSTL - SIN
1 stop35h 15mLufthansa
Thu 1/110:55 amSIN - STL
1 stop41h 00mLufthansa
Deal found 3/9![Lufthansa logo]()
$1,554
This Finnair deal was found by Cheapflights users on 3/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/274:23 pmSTL - SIN
2 stops37h 02mFinnair
Sun 8/179:35 pmSIN - STL
2 stops33h 46mFinnair
Deal found 3/10![Finnair logo]()
$1,574
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/213:11 pmSTL - SIN
1 stop37h 24mMultiple Airlines
Sun 4/272:15 amSIN - STL
2 stops34h 44mMultiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,672
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:40 amSTL - SIN
2 stops31h 00mAmerican Airlines
Thu 12/252:20 amSIN - STL
2 stops34h 01mAmerican Airlines
Deal found 3/9![American Airlines logo]()
$1,708
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:30 amSTL - SIN
2 stops26h 40mDelta
Mon 12/2910:30 pmSIN - STL
2 stops37h 04mDelta
Deal found 3/9![Delta logo]()
$1,757
Find flights from St. Louis to Singapore within your budget
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 March 10, 2025.
Fly from
St. Louis
Fly to
Singapore
Route
Depart
Return
Price
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 4/28
3:30 pm-7:05 am
2 stops50h 35m
Singapore Changi
Sat 5/10
9:10 am-7:58 pm
2 stops47h 48m
$1,009
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Tue 4/8
3:29 pm-9:00 am
2 stops28h 31m
Singapore Changi
Tue 4/15
6:45 pm-10:12 pm
2 stops40h 27m
$1,075
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 4/28
5:54 pm-6:45 am
1 stop23h 51m
Singapore Changi
Wed 5/7
9:00 am-4:52 pm
1 stop20h 52m
$1,093
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Tue 4/8
7:45 am-6:10 am
2 stops33h 25m
Singapore Changi
Mon 4/14
1:55 am-4:15 pm
2 stops27h 20m
$1,103
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 5/11
6:52 am-12:50 am
2 stops28h 58m
Singapore Changi
Tue 5/20
1:50 am-6:33 pm
2 stops29h 43m
$1,473
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 7/27
4:23 pm-6:25 pm
2 stops37h 02m
Singapore Changi
Sun 8/17
9:35 pm-6:21 pm
2 stops33h 46m
$1,574
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 4/21
3:11 pm-5:35 pm
1 stop37h 24m
Singapore Changi
Sun 4/27
2:15 am-11:59 pm
2 stops34h 44m
$1,672
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Fri 5/9
6:00 am-5:00 am
2 stops34h 00m
Singapore Changi
Wed 5/14
1:10 am-11:10 pm
2 stops35h 00m
$1,807
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 4/26
1:12 pm-6:50 am
2 stops28h 38m
Singapore Changi
Thu 5/8
10:55 am-1:30 pm
1 stop39h 35m
$1,861
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 5/24
6:05 pm-3:30 pm
2 stops32h 25m
Singapore Changi
Sat 5/31
12:40 am-4:35 pm
2 stops28h 55m
$1,867
Showing 1-10 of 13 results
Compare providers for flights from St. Louis to Singapore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Singapore in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Singapore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
Travel insights for flights from St. Louis to Singapore
Get recent, data-driven insights about flights from St. Louis to Singapore including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from St. Louis to Singapore?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Singapore (average of $1,011). Flying from St. Louis to Singapore in December is currently the most expensive (average of $1,684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to SIN?
Find hourly flight availability from St. Louis to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 10, 2025.
When flying from St. Louis to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 10% versus a flight at noon.
Rainfall in Singapore by month
Plan your trip to Singapore by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.
Temperature in Singapore by month
Plan your trip to Singapore by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).
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 March 10, 2025.
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
Comfort
8.2
Boarding
8.4
Food
7.7
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
10.0
L,Nov 2024
SNA - SEA
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.
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Alternative routes for St. Louis to Singapore
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from St. Louis to Singapore
Discover the top 2 airlines 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 March 10, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$940 | Average$1,443 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,295 | Average$2,078 | FlexibilityNo cancel fee | On-time68% |