$805+ Cheap flights from St. Louis (STL) to Singapore (SIN)
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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
May 1 — May 81
Round-trip
1 adult, Economy
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
Best
Last-minute
One-way
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 April 1, 2026.
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 April 1, 2026.
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:27 pm
STL
- SIN
2 stops31h 23m
Qatar Airways
Mon 5/47:40 pm
SIN
- STL
2 stops39h 39m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,150
This Gotogate deal was found by Cheapflights users on 3/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:33 pm
STL
- SIN
2 stops36h 12m
Qatar Airways
Mon 5/183:15 am
SIN
- STL
2 stops29h 18m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,156
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:27 pm
STL
- SIN
2 stops31h 23m
Qatar Airways
Sat 4/253:15 am
SIN
- STL
2 stops33h 31m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,189
This Qatar Airways deal was found by Cheapflights users on 3/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:46 am
STL
- SIN
2 stops40h 59m
Qatar Airways
Mon 9/147:40 pm
SIN
- STL
2 stops40h 40m
Qatar Airways
Deal found 3/29![Qatar Airways logo]()
$1,197
This oojo deal was found by Cheapflights users on 3/27. 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 4/125:51 am
STL
- SIN
2 stops44h 54m
Qatar Airways
Fri 4/173:15 am
SIN
- STL
2 stops33h 44m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,202
This BusinessClass deal was found by Cheapflights users on 3/30. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:27 pm
STL
- SIN
2 stops31h 23m
Multiple Airlines
Wed 5/203:15 am
SIN
- STL
2 stops33h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,222
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:30 pm
STL
- SIN
2 stops34h 15m
Qatar Airways
Sat 5/27:40 pm
SIN
- STL
2 stops39h 39m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,227
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:27 pm
STL
- SIN
2 stops38h 18m
Qatar Airways
Sun 4/267:40 pm
SIN
- STL
2 stops39h 37m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,228
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:16 pm
STL
- SIN
3 stops48h 09m
Multiple Airlines
Sun 4/2611:10 pm
SIN
- STL
3 stops61h 09m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,242
This Trip.com deal was found by Cheapflights users on 3/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:55 pm
STL
- SIN
3 stops42h 30m
Multiple Airlines
Sun 5/36:25 pm
SIN
- STL
3 stops60h 41m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,245
Best flights from St. Louis to SingaporeDiscover carefully curated flight deals from St. Louis to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
Discover carefully curated flight deals from St. Louis to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
This Qatar Airways deal was found by Cheapflights users on 3/28. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:46 am
STL
- SIN
2 stops34h 04m
Qatar Airways
Mon 9/147:40 pm
SIN
- STL
2 stops37h 23m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,197
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 5/77:06 pm
STL
- SIN
1 stop34h 29m
United Airlines
Fri 5/228:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,538
This Mytrip deal was found by Cheapflights users on 4/1. 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.
Sat 5/167:05 am
STL
- SIN
2 stops57h 10m
Multiple Airlines
Fri 5/222:20 am
SIN
- STL
2 stops30h 49m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$1,583
This oojo deal was found by Cheapflights users on 3/27. 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 4/125:51 am
STL
- SIN
2 stops44h 54m
Qatar Airways
Fri 4/173:15 am
SIN
- STL
2 stops33h 44m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,202
This FlightHub deal was found by Cheapflights users on 3/30. 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 4/2912:27 pm
STL
- SIN
2 stops38h 18m
Qatar Airways
Wed 5/67:40 pm
SIN
- STL
2 stops39h 39m
Qatar Airways
Deal found 3/30![Qatar Airways logo]()
$1,227
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sat 4/257:05 pm
STL
- SIN
1 stop34h 30m
United Airlines
Sat 5/211:05 am
SIN
- STL
2 stops44h 17m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,557
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 9/108:52 am
STL
- SIN
1 stop32h 23m
United Airlines
Mon 9/148:45 am
SIN
- STL
1 stop22h 39m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,617
Last-minute flights from St. Louis to SingaporeDiscover last-minute flight deals from St. Louis to Singapore. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Singapore. Data last updated April 1, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 3/27. 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 4/125:51 am
STL
- SIN
2 stops44h 54m
Qatar Airways
Fri 4/173:15 am
SIN
- STL
2 stops33h 44m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,202
This Travelocity deal was found by Cheapflights users on 3/31. 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.
Fri 4/177:00 am
STL
- SIN
2 stops36h 50m
Multiple Airlines
Sat 4/253:15 am
SIN
- STL
2 stops33h 31m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$1,310
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:27 pm
STL
- SIN
2 stops38h 18m
Qatar Airways
Sun 4/267:40 pm
SIN
- STL
2 stops39h 37m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,228
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:16 pm
STL
- SIN
3 stops48h 09m
Multiple Airlines
Sun 4/2611:10 pm
SIN
- STL
3 stops61h 09m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,242
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:27 pm
STL
- SIN
2 stops31h 23m
Qatar Airways
Sat 4/253:15 am
SIN
- STL
2 stops33h 31m
Qatar Airways
Deal found 3/27![Qatar Airways logo]()
$1,189
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:30 pm
STL
- SIN
2 stops34h 15m
Qatar Airways
Sat 5/27:40 pm
SIN
- STL
2 stops39h 39m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,227
This Trip.com deal was found by Cheapflights users on 3/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:55 pm
STL
- SIN
3 stops42h 30m
Multiple Airlines
Sun 5/36:25 pm
SIN
- STL
3 stops60h 41m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$1,245
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:27 pm
STL
- SIN
2 stops31h 23m
Qatar Airways
Mon 5/47:40 pm
SIN
- STL
2 stops39h 39m
Qatar Airways
Deal found 3/28![Qatar Airways logo]()
$1,150
This United Airlines deal was found by Cheapflights users on 3/28. 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 4/278:30 am
STL
- SIN
1 stop45h 05m
United Airlines
Mon 5/411:05 am
SIN
- STL
2 stops44h 17m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,446
This KAYAK deal was found by Cheapflights users on 3/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:15 am
STL
- SIN
2 stops29h 30m
ANA
Wed 5/69:00 am
SIN
- STL
1 stop22h 22m
ANA
Deal found 3/30![ANA logo]()
$1,420
This BusinessClass deal was found by Cheapflights users on 3/30. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:27 pm
STL
- SIN
2 stops31h 23m
Multiple Airlines
Wed 5/203:15 am
SIN
- STL
2 stops33h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$1,222
One-way flights from St. Louis to SingaporeSearch for one-way flight options from St. Louis to Singapore. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
Search for one-way flight options from St. Louis to Singapore. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This Air Canada deal was found by Cheapflights users on 3/30. 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.
Sat 5/302:15 pm
STL
- SIN
2 stops50h 00m
Air Canada
Deal found 3/30![Air Canada logo]()
$805
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Sat 5/303:27 pm
STL
- SIN
3 stops46h 38m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$931
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 5/307:23 pm
STL
- SIN
1 stop34h 12m
United Airlines
Deal found 3/30![United Airlines logo]()
$1,070
This Thrive Travel deal was found by Cheapflights users on 3/28. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:20 am
STL
- SIN
3 stops30h 00m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$2,022
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 April 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,150 (Justfly.com) |
One-way from | $805 (Air Canada) |
Popular in | February |
Cheapest in | January |
Average price | $1,361 |
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 April 1, 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
Cheapest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 9/10
9:46 am-8:50 am
2 stops34h 04m
Singapore Changi
Mon 9/14
7:40 pm-8:03 pm
2 stops37h 23m
$1,197
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 4/12
5:51 am-3:45 pm
2 stops44h 54m
Singapore Changi
Fri 4/17
3:15 am-11:59 pm
2 stops33h 44m
$1,202
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Wed 4/29
12:27 pm-3:45 pm
2 stops38h 18m
Singapore Changi
Wed 5/6
7:40 pm-10:19 pm
2 stops39h 39m
$1,227
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 5/7
7:06 pm-6:35 pm
1 stop34h 29m
Singapore Changi
Fri 5/22
8:45 am-6:17 pm
1 stop22h 32m
$1,538
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 4/25
7:05 pm-6:35 pm
1 stop34h 30m
Singapore Changi
Sat 5/2
11:05 am-6:22 pm
2 stops44h 17m
$1,557
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 5/16
7:05 am-5:15 am
2 stops57h 10m
Singapore Changi
Fri 5/22
2:20 am-8:09 pm
2 stops30h 49m
$1,583
Quickest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 9/10
8:52 am-6:15 am
1 stop32h 23m
Singapore Changi
Mon 9/14
8:45 am-6:24 pm
1 stop22h 39m
$1,617
Cheapest one-way
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 5/30
2:15 pm-5:15 am
2 stops50h 00m
$805
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 5/30
3:27 pm-3:05 am
3 stops46h 38m
$931
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 5/30
7:23 pm-6:35 pm
1 stop34h 12m
$1,070
Showing 1-10 of 11 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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.
STL-SIN
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
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 April 1, 2026.
See what other customers who have flown with United Airlines from St. Louis to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.6
Crew
8.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from St. Louis
Popular flights
Singapore flight routes
Alternative routes for St. Louis to Singapore
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Singapore by cabin class
Find flights from St. Louis to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Singapore flights
Browse other St. Louis and Singapore flight options. Last updated on April 1, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on April 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Singapore
Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 1, 2026.
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 April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,094 | Average$1,474 | FlexibilityNo cancel fee | On-time69% |