$558+ Cheap flights from St. Louis (STL) to Singapore
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SIN
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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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
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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 September 23, 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 September 23, 2026.
This Air Canada deal was found by Cheapflights users on 9/21. 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 11/51:40 pm -
2 stops27h 20m
Thu 11/128:40 am -
2 stops44h 46m
Deal found 9/21![Multiple Airlines logo]()
$1,126
This KAYAK deal was found by Cheapflights users on 9/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:26 am -
2 stops32h 14m
Thu 12/177:30 am -
2 stops22h 22m
Deal found 9/20![Cathay Pacific logo]()
$1,159
This oojo deal was found by Cheapflights users on 9/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:29 am -
2 stops44h 16m
Thu 10/86:40 pm -
2 stops42h 19m
Deal found 9/18![Qatar Airways logo]()
$1,163
This Expedia deal was found by Cheapflights users on 9/20. 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.
Wed 11/253:40 pm -
1 stop25h 10m
Thu 12/1711:55 pm -
2 stops37h 43m
Deal found 9/20![Lufthansa logo]()
$1,177
This KAYAK deal was found by Cheapflights users on 9/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:16 am -
2 stops32h 24m
Thu 12/177:30 am -
2 stops22h 22m
Deal found 9/20![Cathay Pacific logo]()
$1,190
This Cathay Pacific deal was found by Cheapflights users on 9/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 am -
2 stops41h 00m
Thu 12/177:30 am -
2 stops26h 22m
Deal found 9/20![Multiple Airlines logo]()
$1,199
This FlightHub deal was found by Cheapflights users on 9/21. 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 11/101:00 pm -
2 stops38h 05m
Mon 11/3011:55 pm -
2 stops35h 28m
Deal found 9/21![Lufthansa logo]()
$1,206
This oojo deal was found by Cheapflights users on 9/22. 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 10/411:01 am -
2 stops47h 14m
Sat 10/103:15 am -
2 stops33h 44m
Deal found 9/22![Qatar Airways logo]()
$1,215
This Cathay Pacific deal was found by Cheapflights users on 9/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:02 am -
2 stops47h 03m
Sun 10/254:45 pm -
2 stops44h 14m
Deal found 9/21![Cathay Pacific logo]()
$1,244
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 September 23, 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 September 23, 2026.
This oojo deal was found by Cheapflights users on 9/22. 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 10/411:01 am -
2 stops47h 14m
Sat 10/103:15 am -
2 stops33h 44m
Deal found 9/22![Qatar Airways logo]()
$1,215
This Cathay Pacific deal was found by Cheapflights users on 9/22. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:06 pm -
2 stops34h 19m
Sun 10/252:05 pm -
2 stops46h 54m
Deal found 9/22![Cathay Pacific logo]()
$1,244
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:00 am -
2 stops37h 00m
Sat 12/1910:10 am -
2 stops44h 50m
Deal found 9/20![United Airlines logo]()
$1,311
This China Airlines deal was found by Cheapflights users on 9/20. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 am -
2 stops41h 05m
Sat 12/192:25 pm -
3 stops37h 35m
Deal found 9/20![Multiple Airlines logo]()
$1,542
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Sun 10/47:08 am -
1 stop22h 27m
Sun 10/118:35 pm -
2 stops28h 38m
Deal found 9/19![United Airlines logo]()
$1,647
This China Airlines deal was found by Cheapflights users on 9/21. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:30 am -
2 stops39h 00m
Sun 10/111:55 pm -
3 stops45h 55m
Deal found 9/21![Multiple Airlines logo]()
$1,761
Last-minute flights from St. Louis to SingaporeDiscover last-minute flight deals from St. Louis to Singapore. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Singapore. Data last updated September 23, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:29 am -
2 stops44h 16m
Thu 10/86:40 pm -
2 stops42h 19m
Deal found 9/18![Qatar Airways logo]()
$1,163
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/297:08 am -
1 stop22h 27m
Thu 10/88:45 am -
1 stop22h 58m
Deal found 9/22![United Airlines logo]()
$1,291
This China Airlines deal was found by Cheapflights users on 9/21. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:25 am -
2 stops51h 10m
Thu 10/81:55 pm -
3 stops45h 55m
Deal found 9/21![Multiple Airlines logo]()
$1,503
This oojo deal was found by Cheapflights users on 9/22. 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 10/411:01 am -
2 stops47h 14m
Sat 10/103:15 am -
2 stops33h 44m
Deal found 9/22![Qatar Airways logo]()
$1,215
This Cathay Pacific deal was found by Cheapflights users on 9/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:02 am -
2 stops47h 03m
Sun 10/254:45 pm -
2 stops44h 14m
Deal found 9/21![Cathay Pacific logo]()
$1,244
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 September 23, 2026.
Search for one-way flight options from St. Louis to Singapore. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Etihad Airways deal was found by Cheapflights users on 9/22. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/98:13 am -
2 stops35h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$558
This Travelocity deal was found by Cheapflights users on 9/22. 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.
Thu 12/36:04 am -
2 stops49h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$622
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:02 am -
2 stops44h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Qatar Airways logo]()
$627
This Travelocity deal was found by Cheapflights users on 9/22. 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 12/44:04 pm -
2 stops63h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$691
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/67:08 am -
1 stop22h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 9/22. 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 2/91:09 pm -
3 stops44h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$743
This Travelocity deal was found by Cheapflights users on 9/22. 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 12/43:40 pm -
1 stop35h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Lufthansa logo]()
$1,071
This oojo deal was found by Cheapflights users on 9/21. 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.
Tue 2/93:54 pm -
1 stop35h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Singapore Airlines logo]()
$1,178
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 September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,126 (Air Canada) |
One-way from | $558 (Etihad Airways) |
Popular in | February |
Cheapest in | October |
Average price | $2,345 |
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 7,457,451 searches. Data last updated September 23, 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 Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Tue 2/9
8:13 am-9:35 am
2 stops35h 22m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$558
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Thu 12/3
6:04 am-9:55 pm
2 stops49h 51m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$622
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Tue 10/6
7:02 am-4:20 pm
2 stops44h 18m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$627
Quickest round-trip
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Tue 10/6
7:08 am-6:35 pm
1 stop22h 27m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$711
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Tue 2/9
1:09 pm-11:40 pm
3 stops44h 31m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$743
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Fri 12/4
8:25 am-1:05 pm
3 stops38h 40m
Singapore Changi
Wed 12/31
12:00 am-10:30 am
Nonstop0h 00m
$963
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Sun 10/4
11:01 am-11:15 pm
2 stops47h 14m
Singapore Changi
Sat 10/10
3:15 am-11:59 pm
2 stops33h 44m
$1,215
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Wed 10/21
1:06 pm-12:25 pm
2 stops34h 19m
Singapore Changi
Sun 10/25
2:05 pm-11:59 pm
2 stops46h 54m
$1,244
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Thu 11/26
5:00 am-8:00 am
2 stops37h 00m
Singapore Changi
Sat 12/19
10:10 am-5:00 pm
2 stops44h 50m
$1,311
St. LouisSingapore
STL Lambert-St Louis - SIN Singapore Changi
STLSIN
Lambert-St Louis
Thu 11/26
6:00 am-1:05 pm
2 stops41h 05m
Singapore Changi
Sat 12/19
2:25 pm-2:00 pm
3 stops37h 35m
$1,542
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
What is the cheapest month to book a flight from St. Louis to Singapore?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Singapore (average of $1,035). Flying from St. Louis to Singapore in February is currently the most expensive (average of $2,512). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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 September 23, 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.
Comfort
7.3
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Boarding
7.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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
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 September 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,126 | Average$1,525 | FlexibilityNo cancel fee | On-time69% |