$855+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Jun 15 — Jun 221
Round-trip
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
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 May 16, 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 May 16, 2026.
This Qatar Airways deal was found by Cheapflights users on 5/15. 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.
Tue 10/137:00 am
STL
- SIN
2 stops36h 50m
Qatar Airways
Mon 10/263:15 am
SIN
- STL
2 stops29h 53m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$1,208
This FlightHub deal was found by Cheapflights users on 5/14. 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.
Fri 11/272:17 pm
STL
- SIN
2 stops28h 28m
Qatar Airways
Mon 12/148:15 pm
SIN
- STL
2 stops41h 43m
Qatar Airways
Deal found 5/14![Qatar Airways logo]()
$1,246
This SmartFares deal was found by Cheapflights users on 5/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:40 am
STL
- SIN
2 stops34h 05m
Qatar Airways
Wed 11/118:15 pm
SIN
- STL
2 stops41h 41m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$1,257
This Air Canada deal was found by Cheapflights users on 5/13. 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.
Thu 11/194:15 pm
STL
- SIN
2 stops48h 45m
Air Canada
Sun 11/298:50 am
SIN
- STL
2 stops44h 40m
Air Canada
Deal found 5/13![Air Canada logo]()
$1,410
This oojo deal was found by Cheapflights users on 5/12. 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 11/17:00 am
STL
- SIN
2 stops35h 45m
Qatar Airways
Thu 12/313:15 am
SIN
- STL
2 stops34h 44m
Qatar Airways
Deal found 5/12![Qatar Airways logo]()
$1,521
This IEagle deal was found by Cheapflights users on 5/15. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:03 pm
STL
- SIN
2 stops36h 27m
Finnair
Mon 7/69:35 pm
SIN
- STL
2 stops33h 51m
Finnair
Deal found 5/15![Finnair logo]()
$1,566
This Trip.com deal was found by Cheapflights users on 5/15. 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.
Tue 10/133:30 pm
STL
- SIN
1 stop26h 20m
Lufthansa
Tue 10/2711:55 pm
SIN
- STL
1 stop28h 00m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$1,577
This IEagle deal was found by Cheapflights users on 5/13. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:02 am
STL
- SIN
2 stops38h 18m
Qatar Airways
Tue 6/163:15 am
SIN
- STL
2 stops34h 01m
Qatar Airways
Deal found 5/13![Qatar Airways logo]()
$1,582
This IEagle deal was found by Cheapflights users on 5/14. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:02 am
STL
- SIN
2 stops38h 18m
Multiple Airlines
Tue 6/163:15 am
SIN
- STL
2 stops34h 01m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,591
This EVA Air deal was found by Cheapflights users on 5/15. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:45 pm
STL
- SIN
2 stops28h 10m
Multiple Airlines
Tue 10/273:45 pm
SIN
- STL
3 stops35h 35m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,686
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 May 16, 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 May 16, 2026.
This oojo deal was found by Cheapflights users on 5/12. 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 11/17:00 am
STL
- SIN
2 stops35h 45m
Qatar Airways
Thu 12/313:15 am
SIN
- STL
2 stops34h 44m
Qatar Airways
Deal found 5/12![Qatar Airways logo]()
$1,521
This United Airlines deal was found by Cheapflights users on 5/14. 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 6/117:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Wed 6/178:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/14![United Airlines logo]()
$2,392
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Thu 6/118:40 am
STL
- SIN
3 stops32h 20m
Multiple Airlines
Wed 6/1710:50 pm
SIN
- STL
3 stops34h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$2,412
This Malaysia Airlines deal was found by Cheapflights users on 5/12. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:00 am
STL
- SIN
2 stops46h 00m
Malaysia Airlines
Fri 1/19:20 pm
SIN
- STL
3 stops40h 31m
Malaysia Airlines
Deal found 5/12![Malaysia Airlines logo]()
$3,139
This Mytrip deal was found by Cheapflights users on 5/14. 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 6/281:20 pm
STL
- SIN
2 stops26h 55m
Multiple Airlines
Sun 7/53:20 pm
SIN
- STL
3 stops35h 42m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$2,594
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/297:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Mon 7/68:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/15![United Airlines logo]()
$2,707
This Mytrip deal was found by Cheapflights users on 5/13. 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 7/412:10 pm
STL
- SIN
2 stops26h 55m
Multiple Airlines
Sun 7/1211:25 pm
SIN
- STL
3 stops33h 57m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$2,729
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sun 11/17:06 pm
STL
- SIN
1 stop22h 54m
United Airlines
Fri 1/110:10 am
SIN
- STL
1 stop25h 56m
United Airlines
Deal found 5/12![United Airlines logo]()
$2,751
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 11/41:30 pm
STL
- SIN
2 stops28h 30m
United Airlines
Wed 11/1110:10 am
SIN
- STL
1 stop21h 43m
United Airlines
Deal found 5/15![United Airlines logo]()
$3,497
Last-minute flights from St. Louis to SingaporeDiscover last-minute flight deals from St. Louis to Singapore. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Singapore. Data last updated May 16, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 5/13. 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.
Sun 5/177:05 am
STL
- SIN
2 stops33h 10m
Multiple Airlines
Tue 5/198:05 pm
SIN
- STL
2 stops29h 01m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,823
This IEagle deal was found by Cheapflights users on 5/13. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:02 am
STL
- SIN
2 stops38h 18m
Qatar Airways
Tue 6/163:15 am
SIN
- STL
2 stops34h 01m
Qatar Airways
Deal found 5/13![Qatar Airways logo]()
$1,582
This IEagle deal was found by Cheapflights users on 5/14. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:02 am
STL
- SIN
2 stops38h 18m
Multiple Airlines
Tue 6/163:15 am
SIN
- STL
2 stops34h 01m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,591
This United Airlines deal was found by Cheapflights users on 5/14. 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 6/117:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Wed 6/1711:05 am
SIN
- STL
2 stops49h 30m
United Airlines
Deal found 5/14![United Airlines logo]()
$2,202
This Ovago deal was found by Cheapflights users on 5/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:42 pm
STL
- SIN
2 stops42h 33m
Qatar Airways
Wed 7/13:15 am
SIN
- STL
2 stops34h 01m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,721
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Sun 6/285:10 am
STL
- SIN
2 stops24h 25m
United Airlines
Sun 7/58:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/14![United Airlines logo]()
$2,293
This IEagle deal was found by Cheapflights users on 5/15. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:03 pm
STL
- SIN
2 stops36h 27m
Finnair
Mon 7/69:35 pm
SIN
- STL
2 stops33h 51m
Finnair
Deal found 5/15![Finnair logo]()
$1,566
This Expedia deal was found by Cheapflights users on 5/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:56 pm
STL
- SIN
2 stops26h 59m
Multiple Airlines
Mon 7/611:40 pm
SIN
- STL
1 stop26h 45m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$2,060
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 May 16, 2026.
Search for one-way flight options from St. Louis to Singapore. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This IEagle deal was found by Cheapflights users on 5/12. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:02 am
STL
- SIN
2 stops37h 48m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$855
This Priceline deal was found by Cheapflights users on 5/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:20 pm
STL
- SIN
2 stops26h 55m
Air Canada
Deal found 5/12![Air Canada logo]()
$916
This Trip.com deal was found by Cheapflights users on 5/13. 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 5/236:00 am
STL
- SIN
3 stops42h 15m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$931
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Thu 6/257:38 pm
STL
- SIN
3 stops55h 47m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 5/13. 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 5/237:23 pm
STL
- SIN
1 stop34h 12m
United Airlines
Deal found 5/13![United Airlines logo]()
$1,518
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/257:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Deal found 5/12![United Airlines logo]()
$1,849
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 6/247:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Deal found 5/12![United Airlines logo]()
$1,920
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Fri 5/227:41 pm
STL
- SIN
3 stops50h 29m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$2,652
This Qatar Airways deal was found by Cheapflights users on 5/13. 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.
Fri 6/127:20 pm
STL
- SIN
2 stops31h 55m
Qatar Airways
Deal found 5/13![Qatar Airways logo]()
$2,934
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,208 (Qatar Airways) |
One-way from | $855 (IEagle) |
Popular in | February |
Cheapest in | January |
Average price | $1,528 |
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 May 16, 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
Sun 11/1
7:00 am-8:45 am
2 stops35h 45m
Singapore Changi
Thu 12/31
3:15 am-11:59 pm
2 stops34h 44m
$1,521
Quickest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 6/11
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Wed 6/17
8:45 am-6:17 pm
1 stop22h 32m
$2,392
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 6/11
8:40 am-6:00 am
3 stops32h 20m
Singapore Changi
Wed 6/17
10:50 pm-8:25 pm
3 stops34h 35m
$2,412
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 6/28
1:20 pm-5:15 am
2 stops26h 55m
Singapore Changi
Sun 7/5
3:20 pm-2:02 pm
3 stops35h 42m
$2,594
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 6/29
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Mon 7/6
8:45 am-6:17 pm
1 stop22h 32m
$2,707
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 7/4
12:10 pm-4:05 am
2 stops26h 55m
Singapore Changi
Sun 7/12
11:25 pm-8:22 pm
3 stops33h 57m
$2,729
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 11/1
7:06 pm-8:00 am
1 stop22h 54m
Singapore Changi
Fri 1/1
10:10 am-10:06 pm
1 stop25h 56m
$2,751
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sun 11/1
7:00 am-7:00 pm
2 stops46h 00m
Singapore Changi
Fri 1/1
9:20 pm-11:51 pm
3 stops40h 31m
$3,139
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Wed 11/4
1:30 pm-8:00 am
2 stops28h 30m
Singapore Changi
Wed 11/11
10:10 am-5:53 pm
1 stop21h 43m
$3,497
Cheapest one-way
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 6/25
1:20 pm-5:15 am
2 stops26h 55m
$916
Showing 1-10 of 17 resultsSorted by cheapest first
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
STL-SG0
STL-SIN
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 May 16, 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.
Food
6.6
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Crew
8.1
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for St. Louis to Singapore
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Complete your trip
Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.
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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 May 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Singapore flights
Consider these flights traveling from St. Louis to Singapore.
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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,094 | Average$1,474 | FlexibilityNo cancel fee | On-time69% |