$636+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Jun 20 — Jun 271
Round-trip
1 adult, Economy
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Best
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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 21, 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 21, 2026.
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Tue 9/159:46 am
STL
- SIN
2 stops34h 04m
Qatar Airways
Mon 9/213:15 am
SIN
- STL
2 stops29h 48m
Qatar Airways
Deal found 5/20![Qatar Airways logo]()
$1,112
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:33 pm
STL
- SIN
2 stops35h 12m
Qatar Airways
Tue 9/297:40 pm
SIN
- STL
2 stops37h 23m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,234
This SmartFares deal was found by Cheapflights users on 5/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/272:17 pm
STL
- SIN
2 stops34h 38m
Qatar Airways
Sun 12/133:15 am
SIN
- STL
2 stops34h 44m
Qatar Airways
Deal found 5/20![Qatar Airways logo]()
$1,297
This IEagle deal was found by Cheapflights users on 5/18. 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 7/25:58 pm
STL
- SIN
2 stops35h 32m
Finnair
Thu 7/99:35 pm
SIN
- STL
2 stops33h 56m
Finnair
Deal found 5/18![Finnair logo]()
$1,421
This Air Canada deal was found by Cheapflights users on 5/18. 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 8/412:10 pm
STL
- SIN
2 stops28h 05m
Air Canada
Tue 8/117:00 am
SIN
- STL
2 stops26h 07m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,423
This Air Canada deal was found by Cheapflights users on 5/18. 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.
Mon 6/151:05 pm
STL
- SIN
2 stops51h 10m
Air Canada
Sun 6/217:00 am
SIN
- STL
2 stops50h 25m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,510
This Justfly.com deal was found by Cheapflights users on 5/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:25 pm
STL
- SIN
2 stops30h 25m
Qatar Airways
Tue 7/283:15 am
SIN
- STL
2 stops34h 01m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,622
This Justfly.com deal was found by Cheapflights users on 5/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:25 pm
STL
- SIN
2 stops42h 50m
Qatar Airways
Tue 7/283:15 am
SIN
- STL
2 stops34h 01m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,624
This Air Canada deal was found by Cheapflights users on 5/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1812:10 pm
STL
- SIN
2 stops52h 05m
Air Canada
Tue 7/287:00 am
SIN
- STL
2 stops44h 02m
Air Canada
Deal found 5/17![Air Canada logo]()
$1,659
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:17 pm
STL
- SIN
2 stops28h 48m
Multiple Airlines
Tue 9/298:45 pm
SIN
- STL
1 stop39h 17m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,660
This Expedia deal was found by Cheapflights users on 5/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:56 pm
STL
- SIN
2 stops39h 49m
Multiple Airlines
Thu 7/93:15 am
SIN
- STL
2 stops33h 44m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,685
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 21, 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 21, 2026.
This Expedia deal was found by Cheapflights users on 5/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:19 pm
STL
- SIN
2 stops32h 56m
Multiple Airlines
Tue 9/2211:40 pm
SIN
- STL
1 stop26h 45m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,659
This Qatar Airways deal was found by Cheapflights users on 5/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:31 pm
STL
- SIN
2 stops29h 19m
Qatar Airways
Fri 7/3110:20 am
SIN
- STL
2 stops50h 55m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,775
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 8/47:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Tue 8/118:45 am
SIN
- STL
2 stops40h 17m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,897
This Qatar Airways deal was found by Cheapflights users on 5/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:25 pm
STL
- SIN
2 stops42h 50m
Qatar Airways
Sun 8/27:40 pm
SIN
- STL
2 stops41h 36m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,785
This Qatar Airways deal was found by Cheapflights users on 5/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:25 pm
STL
- SIN
2 stops42h 50m
Qatar Airways
Sun 8/27:40 pm
SIN
- STL
2 stops41h 36m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,785
This Mytrip deal was found by Cheapflights users on 5/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:40 pm
STL
- SIN
3 stops35h 45m
Multiple Airlines
Thu 7/91:45 am
SIN
- STL
2 stops31h 22m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$2,192
This United Airlines deal was found by Cheapflights users on 5/18. 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 7/25:10 am
STL
- SIN
2 stops24h 25m
United Airlines
Thu 7/98:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/18![United Airlines logo]()
$2,192
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:13 pm
STL
- SIN
2 stops28h 02m
United Airlines
Fri 7/108:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/19![United Airlines logo]()
$2,292
This United Airlines deal was found by Cheapflights users on 5/18. 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 7/187:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Fri 7/318:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/18![United Airlines logo]()
$2,650
Last-minute flights from St. Louis to SingaporeDiscover last-minute flight deals from St. Louis to Singapore. Data last updated May 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Singapore. Data last updated May 21, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/18. 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.
Mon 6/151:05 pm
STL
- SIN
2 stops51h 10m
Air Canada
Sun 6/217:00 am
SIN
- STL
2 stops50h 25m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,510
This oojo deal was found by Cheapflights users on 5/17. 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 6/157:20 pm
STL
- SIN
2 stops31h 25m
Qatar Airways
Sun 6/2110:20 am
SIN
- STL
2 stops50h 56m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,691
This Mytrip deal was found by Cheapflights users on 5/18. 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.
Mon 6/151:05 pm
STL
- SIN
3 stops35h 45m
Multiple Airlines
Sun 6/217:00 am
SIN
- STL
2 stops42h 21m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,871
This United Airlines deal was found by Cheapflights users on 5/18. 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 6/157:23 pm
STL
- SIN
1 stop21h 52m
United Airlines
Sun 6/218:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/18![United Airlines logo]()
$3,039
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 21, 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 21, 2026.
This oojo deal was found by Cheapflights users on 5/16. 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.
Thu 7/96:02 am
STL
- SIN
2 stops50h 13m
Qatar Airways
Deal found 5/16![Qatar Airways logo]()
$636
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/93:34 pm
STL
- SIN
3 stops43h 11m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$869
This KAYAK deal was found by Cheapflights users on 5/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:23 pm
STL
- SIN
1 stop21h 52m
Air China
Deal found 5/16![Air China logo]()
$1,397
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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,112 (FlightHub) |
One-way from | $636 (oojo) |
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 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
Cheapest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Tue 9/15
3:19 pm-1:15 pm
2 stops32h 56m
Singapore Changi
Tue 9/22
11:40 pm-1:25 pm
1 stop26h 45m
$1,659
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Fri 7/17
2:31 pm-8:50 am
2 stops29h 19m
Singapore Changi
Fri 7/31
10:20 am-12:15 am
2 stops50h 55m
$1,775
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Tue 7/14
1:25 pm-9:15 pm
2 stops42h 50m
Singapore Changi
Sun 8/2
7:40 pm-12:16 am
2 stops41h 36m
$1,785
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 7/16
1:25 pm-9:15 pm
2 stops42h 50m
Singapore Changi
Sun 8/2
7:40 pm-12:16 am
2 stops41h 36m
$1,785
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Tue 8/4
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Tue 8/11
8:45 am-12:02 pm
2 stops40h 17m
$1,897
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Fri 7/3
2:40 pm-3:25 pm
3 stops35h 45m
Singapore Changi
Thu 7/9
1:45 am-8:07 pm
2 stops31h 22m
$2,192
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 7/2
5:10 am-6:35 pm
2 stops24h 25m
Singapore Changi
Thu 7/9
8:45 am-6:17 pm
1 stop22h 32m
$2,192
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Fri 7/3
1:13 pm-6:15 am
2 stops28h 02m
Singapore Changi
Fri 7/10
8:45 am-6:17 pm
1 stop22h 32m
$2,292
Quickest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Sat 7/18
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Fri 7/31
8:45 am-6:17 pm
1 stop22h 32m
$2,650
Cheapest one-way
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Thu 7/9
6:02 am-9:15 pm
2 stops50h 13m
$636
Showing 1-10 of 12 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 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.
Entertainment
7.1
Comfort
7.3
Crew
8.1
Overall
7.4
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Comfort
7.3
Crew
8.1
Overall
7.4
Boarding
7.7
Food
6.6
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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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.
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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 21, 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,094 | Average$1,474 | FlexibilityNo cancel fee | On-time69% |