S$ 173+ Cheap flights from St. Louis

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24-2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SIN
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from St. Louis

Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 28 January 2026.

Good round-trip deal

S$ 223 or less
Price to beat on a round-trip flight from Lambert-St Louis.

Find flights from St. Louis

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Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 28 January 2026.

Mon 20-412:11
STL
-
SIN
2 stops38h 29m
Cathay Pacific
Mon 4-518:00
SIN
-
STL
2 stops42h 59m
Cathay Pacific
Deal found 27-1S$ 1,319
Mon 20-412:11
STL
-
SIN
2 stops28h 19m
Cathay Pacific
Sun 3-520:05
SIN
-
STL
2 stops35h 22m
Cathay Pacific
Deal found 27-1S$ 1,383
Tue 21-412:11
STL
-
SIN
2 stops28h 19m
Cathay Pacific
Tue 5-501:45
SIN
-
STL
2 stops29h 42m
Cathay Pacific
Deal found 27-1S$ 1,416
Wed 22-418:11
STL
-
SIN
2 stops29h 14m
Cathay Pacific
Sun 3-520:05
SIN
-
STL
2 stops35h 22m
Cathay Pacific
Deal found 27-1S$ 1,420
Mon 20-419:05
STL
-
SIN
1 stop22h 40m
United Airlines
Tue 5-520:35
SIN
-
STL
2 stops33h 22m
United Airlines
Deal found 27-1S$ 1,427
Sun 19-406:20
STL
-
SIN
2 stops40h 25m
Cathay Pacific
Mon 4-513:25
SIN
-
STL
2 stops42h 02m
Cathay Pacific
Deal found 27-1S$ 1,432
Sun 19-408:30
STL
-
SIN
1 stop45h 05m
United Airlines
Wed 6-520:35
SIN
-
STL
1 stop22h 12m
United Airlines
Deal found 27-1S$ 1,438
Sun 19-408:30
STL
-
SIN
1 stop45h 05m
United Airlines
Mon 4-520:35
SIN
-
STL
2 stops24h 43m
United Airlines
Deal found 27-1S$ 1,444
Thu 26-209:37
STL
-
SIN
2 stops39h 18m
Qatar Airways
Thu 5-320:15
SIN
-
STL
2 stops38h 57m
Qatar Airways
Deal found 27-1S$ 1,453
Mon 20-407:00
STL
-
SIN
1 stop45h 35m
Multiple Airlines
Sat 2-507:20
SIN
-
STL
2 stops29h 39m
Multiple Airlines
Deal found 27-1S$ 1,471
Mon 20-412:11
STL
-
SIN
2 stops28h 19m
Cathay Pacific
Sat 2-507:20
SIN
-
STL
2 stops28h 44m
Cathay Pacific
Deal found 27-1S$ 1,477

Find flights from St. Louis within your budget

 
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 28 January 2026. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Singapore

Route

Depart

Return

Price

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 20-4

12:11-15:40

2 stops38h 29m

Singapore Changi

Mon 4-5

18:00-23:59

2 stops42h 59m

S$ 1,319

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 22-4

12:11-12:25

2 stops35h 14m

Singapore Changi

Tue 5-5

13:25-18:27

2 stops42h 02m

S$ 1,420

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 22-4

08:30-06:45

1 stop33h 15m

Singapore Changi

Mon 4-5

09:00-18:22

1 stop22h 22m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 22-4

08:30-06:45

1 stop33h 15m

Singapore Changi

Tue 5-5

09:00-18:22

1 stop22h 22m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 20-4

08:30-06:45

1 stop33h 15m

Singapore Changi

Wed 6-5

20:35-16:57

2 stops33h 22m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 20-4

19:05-06:45

1 stop22h 40m

Singapore Changi

Tue 5-5

20:35-16:57

2 stops33h 22m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 21-4

08:30-06:45

1 stop33h 15m

Singapore Changi

Wed 6-5

20:35-05:47

1 stop22h 12m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 20-4

19:05-06:45

1 stop22h 40m

Singapore Changi

Mon 4-5

20:35-05:47

1 stop22h 12m

S$ 1,427

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 18-3

20:12-00:25

3 stops39h 13m

S$ 600

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 18-3

06:51-20:15

1 stop24h 24m

S$ 808

Flights are sorted by cheapest return flights first.

Deals found on 26-1

Showing 1-10 of 17 results
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Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.
Estimated return 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.

Travel insights for flights from St. Louis

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Direct flights from Missouri

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Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 28 January 2026.
  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Cancún, Denver, Atlanta. Throughout the year, Denver, Cancún, Atlanta are some of the top choices made by users flying from St. Louis.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as S$ 223 to Orlando Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 223 to fly from St. Louis.

  • How does Cheapflights help users find flights from St. Louis?

    Deals for flights from St. Louis are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from St. Louis?

    Cheapflights simply makes it quick and affordable to book flights from St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from St. Louis with no change fees?

    Need flexible booking options for your flight from St. Louis ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from St. Louis today and book when you’re ready!

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How does Cheapflights help users find flights from St. Louis?

Deals for flights from St. Louis are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St. Louis?

Cheapflights simply makes it quick and affordable to book flights from St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St. Louis with no change fees?

Need flexible booking options for your flight from St. Louis ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from St. Louis today and book when you’re ready!

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