$539+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Jun 10 — Jun 171
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 11, 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 11, 2026.
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am
STL
- SIN
2 stops50h 30m
Multiple Airlines
Wed 9/306:15 am
SIN
- STL
2 stops45h 06m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,186
This KAYAK deal was found by Cheapflights users on 5/7. 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.
Sun 9/69:31 am
STL
- SIN
2 stops41h 14m
Qatar Airways
Sun 9/137:40 pm
SIN
- STL
2 stops37h 23m
Qatar Airways
Deal found 5/7![Qatar Airways logo]()
$1,187
This IEagle deal was found by Cheapflights users on 5/10. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
STL
- SIN
2 stops37h 50m
Multiple Airlines
Tue 9/223:15 am
SIN
- STL
2 stops29h 48m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$1,189
This FlightHub deal was found by Cheapflights users on 5/7. 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 9/309:46 am
STL
- SIN
2 stops34h 04m
Qatar Airways
Fri 10/93:15 am
SIN
- STL
2 stops33h 10m
Qatar Airways
Deal found 5/7![Qatar Airways logo]()
$1,209
This KAYAK deal was found by Cheapflights users on 5/7. 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 9/303:17 pm
STL
- SIN
1 stop37h 18m
Multiple Airlines
Sat 10/109:00 am
SIN
- STL
1 stop27h 59m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,389
This Air Canada deal was found by Cheapflights users on 5/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 am
STL
- SIN
2 stops55h 35m
Air Canada
Thu 6/117:00 am
SIN
- STL
2 stops26h 25m
Air Canada
Deal found 5/10![Air Canada logo]()
$1,583
This IEagle deal was found by Cheapflights users on 5/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:42 am
STL
- SIN
2 stops41h 33m
Qatar Airways
Sat 6/131:30 am
SIN
- STL
2 stops35h 46m
Qatar Airways
Deal found 5/9![Qatar Airways logo]()
$1,609
This IEagle deal was found by Cheapflights users on 5/8. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:21 pm
STL
- SIN
2 stops36h 54m
Qatar Airways
Wed 8/53:15 am
SIN
- STL
2 stops32h 25m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$1,641
This Air Canada deal was found by Cheapflights users on 5/7. 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.
Sun 6/211:20 pm
STL
- SIN
2 stops26h 55m
Air Canada
Sun 6/287:00 am
SIN
- STL
2 stops26h 25m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,646
This KAYAK deal was found by Cheapflights users on 5/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:08 am
STL
- SIN
2 stops47h 07m
Qatar Airways
Wed 8/57:40 pm
SIN
- STL
2 stops41h 19m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$1,660
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 11, 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 11, 2026.
This KAYAK deal was found by Cheapflights users on 5/7. 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.
Sun 9/69:31 am
STL
- SIN
2 stops41h 14m
Qatar Airways
Sun 9/137:40 pm
SIN
- STL
2 stops37h 23m
Qatar Airways
Deal found 5/7![Qatar Airways logo]()
$1,187
This IEagle deal was found by Cheapflights users on 5/10. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
STL
- SIN
2 stops37h 50m
Multiple Airlines
Tue 9/223:15 am
SIN
- STL
2 stops29h 48m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$1,189
This IEagle deal was found by Cheapflights users on 5/8. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:03 pm
STL
- SIN
2 stops36h 27m
Finnair
Mon 6/159:35 pm
SIN
- STL
2 stops39h 41m
Finnair
Deal found 5/8![Finnair logo]()
$1,699
This Ovago deal was found by Cheapflights users on 5/8. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:23 pm
STL
- SIN
1 stop21h 52m
ANA
Thu 8/66:15 am
SIN
- STL
2 stops25h 02m
ANA
Deal found 5/8![ANA logo]()
$1,889
This United Airlines deal was found by Cheapflights users on 5/6. 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 5/6![United Airlines logo]()
$2,091
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:41 pm
STL
- SIN
2 stops48h 39m
Qatar Airways
Wed 6/101:30 am
SIN
- STL
2 stops35h 46m
Qatar Airways
Deal found 5/10![Qatar Airways logo]()
$1,699
This Mytrip deal was found by Cheapflights users on 5/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:40 pm
STL
- SIN
3 stops32h 05m
Multiple Airlines
Tue 8/41:45 am
SIN
- STL
3 stops31h 22m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$2,030
This KAYAK deal was found by Cheapflights users on 5/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:23 pm
STL
- SIN
1 stop21h 52m
ANA
Wed 8/511:05 am
SIN
- STL
2 stops44h 12m
ANA
Deal found 5/8![ANA logo]()
$2,144
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:41 pm
STL
- SIN
2 stops27h 59m
Multiple Airlines
Mon 6/1511:40 pm
SIN
- STL
1 stop26h 45m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$2,061
This Mytrip deal was found by Cheapflights users on 5/7. 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.
Wed 9/3012:10 pm
STL
- SIN
2 stops26h 55m
Multiple Airlines
Sat 10/103:20 pm
SIN
- STL
3 stops35h 40m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$2,088
Last-minute flights from St. Louis to SingaporeDiscover last-minute flight deals from St. Louis to Singapore. Data last updated May 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Singapore. Data last updated May 11, 2026 and is based on user searches.
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:41 pm
STL
- SIN
2 stops48h 39m
Qatar Airways
Wed 6/101:30 am
SIN
- STL
2 stops35h 46m
Qatar Airways
Deal found 5/10![Qatar Airways logo]()
$1,699
This Mytrip deal was found by Cheapflights users on 5/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/51:05 pm
STL
- SIN
3 stops35h 10m
Multiple Airlines
Thu 6/117:00 am
SIN
- STL
2 stops42h 06m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$2,361
This Air Canada deal was found by Cheapflights users on 5/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 am
STL
- SIN
2 stops55h 35m
Air Canada
Thu 6/117:00 am
SIN
- STL
2 stops26h 25m
Air Canada
Deal found 5/10![Air Canada logo]()
$1,583
This IEagle deal was found by Cheapflights users on 5/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:42 am
STL
- SIN
2 stops41h 33m
Qatar Airways
Sat 6/131:30 am
SIN
- STL
2 stops35h 46m
Qatar Airways
Deal found 5/9![Qatar Airways logo]()
$1,609
This Mytrip deal was found by Cheapflights users on 5/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/62:15 pm
STL
- SIN
3 stops32h 40m
Multiple Airlines
Thu 6/111:10 pm
SIN
- STL
3 stops35h 56m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$2,258
This United Airlines deal was found by Cheapflights users on 5/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:23 pm
STL
- SIN
1 stop34h 12m
United Airlines
Sun 6/1411:05 am
SIN
- STL
2 stops45h 08m
United Airlines
Deal found 5/9![United Airlines logo]()
$2,268
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:41 pm
STL
- SIN
2 stops27h 59m
Multiple Airlines
Mon 6/1511:40 pm
SIN
- STL
1 stop26h 45m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$2,061
This United Airlines deal was found by Cheapflights users on 5/8. 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 6/87:23 pm
STL
- SIN
1 stop34h 12m
United Airlines
Mon 6/158:45 am
SIN
- STL
1 stop22h 32m
United Airlines
Deal found 5/8![United Airlines logo]()
$2,408
This Air Canada deal was found by Cheapflights users on 5/7. 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.
Sun 6/211:20 pm
STL
- SIN
2 stops26h 55m
Air Canada
Sun 6/287:00 am
SIN
- STL
2 stops26h 25m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,646
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
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 11, 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 11, 2026.
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am
STL
- SIN
2 stops50h 30m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$539
This FlightHub deal was found by Cheapflights users on 5/7. 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.
Mon 5/1812:27 pm
STL
- SIN
2 stops38h 48m
Qatar Airways
Deal found 5/7![Qatar Airways logo]()
$1,022
This Travelocity deal was found by Cheapflights users on 5/7. 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.
Sun 6/142:15 pm
STL
- SIN
2 stops45h 30m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,446
This United Airlines deal was found by Cheapflights users on 5/7. 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 5/187:06 pm
STL
- SIN
1 stop34h 29m
United Airlines
Deal found 5/7![United Airlines logo]()
$1,534
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Sat 5/164:12 pm
STL
- SIN
3 stops42h 13m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$2,993
This United Airlines deal was found by Cheapflights users on 5/7. 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 6/147:23 pm
STL
- SIN
1 stop34h 12m
United Airlines
Deal found 5/7![United Airlines logo]()
$3,295
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 May 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,186 (Expedia) |
One-way from | $539 (Expedia) |
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 11, 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 9/6
9:31 am-3:45 pm
2 stops41h 14m
Singapore Changi
Sun 9/13
7:40 pm-8:03 pm
2 stops37h 23m
$1,187
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Wed 9/9
6:00 am-8:50 am
2 stops37h 50m
Singapore Changi
Tue 9/22
3:15 am-8:03 pm
2 stops29h 48m
$1,189
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 6/8
5:03 pm-6:30 pm
2 stops36h 27m
Singapore Changi
Mon 6/15
9:35 pm-12:16 am
2 stops39h 41m
$1,699
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Fri 6/5
7:41 pm-9:20 am
2 stops48h 39m
Singapore Changi
Wed 6/10
1:30 am-12:16 am
2 stops35h 46m
$1,699
Quickest round-trip
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 7/27
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Thu 8/6
6:15 am-6:17 pm
2 stops25h 02m
$1,889
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 7/27
2:40 pm-11:45 am
3 stops32h 05m
Singapore Changi
Tue 8/4
1:45 am-8:07 pm
3 stops31h 22m
$2,030
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 6/8
7:41 pm-12:40 pm
2 stops27h 59m
Singapore Changi
Mon 6/15
11:40 pm-1:25 pm
1 stop26h 45m
$2,061
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Wed 9/30
12:10 pm-4:05 am
2 stops26h 55m
Singapore Changi
Sat 10/10
3:20 pm-2:00 pm
3 stops35h 40m
$2,088
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
$2,091
St. LouisSingapore
STL - SIN
STLSIN
Lambert-St Louis
Mon 7/27
7:23 pm-6:15 am
1 stop21h 52m
Singapore Changi
Wed 8/5
11:05 am-6:17 pm
2 stops44h 12m
$2,144
Showing 1-10 of 16 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| 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.
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 May 11, 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.
Entertainment
7.1
Food
6.6
Comfort
7.3
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Food
6.6
Comfort
7.3
Boarding
7.7
Overall
7.4
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - 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
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Complete your trip
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St. Louis and Singapore flights
Browse other St. Louis and Singapore flight options. Last updated on May 11, 2026.
Other flights from St. Louis
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Other flights to Singapore
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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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,094 | Average$1,474 | FlexibilityNo cancel fee | On-time69% |