S$ 168+ 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 20-11. 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
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Good round-trip deal

S$ 225 or less
Price to beat on a round-trip flight from Lambert-St Louis.
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Find flights from St. Louis

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 16 September 2025.

Mon 10-1116:14STL - SIN
1 stop35h 31mMultiple Airlines
Fri 14-1109:00SIN - STL
1 stop28h 59mMultiple Airlines
Deal found 16-9S$ 1,346
Wed 29-1009:58STL - SIN
2 stops30h 42mCathay Pacific
Tue 4-1101:25SIN - STL
2 stops29h 22mCathay Pacific
Deal found 14-9S$ 1,389
Mon 17-1117:29STL - SIN
1 stop24h 31mUnited Airlines
Tue 2-1210:10SIN - STL
1 stop20h 17mUnited Airlines
Deal found 15-9S$ 1,441
Mon 17-1112:31STL - SIN
2 stops29h 29mUnited Airlines
Thu 4-1210:10SIN - STL
2 stops24h 47mUnited Airlines
Deal found 15-9S$ 1,446
Fri 16-107:09STL - SIN
2 stops27h 41mAmerican Airlines
Sat 31-108:15SIN - STL
2 stops24h 08mAmerican Airlines
Deal found 14-9S$ 1,452
Sun 23-1117:29STL - SIN
1 stop36h 46mUnited Airlines
Tue 2-1210:10SIN - STL
1 stop20h 17mUnited Airlines
Deal found 15-9S$ 1,453
Thu 20-1108:20STL - SIN
2 stops45h 55mUnited Airlines
Mon 1-1222:20SIN - STL
2 stops32h 08mUnited Airlines
Deal found 15-9S$ 1,510
Fri 16-106:00STL - SIN
2 stops33h 40mCathay Pacific
Fri 30-101:25SIN - STL
2 stops33h 39mCathay Pacific
Deal found 14-9S$ 1,517
Sat 22-1117:29STL - SIN
1 stop36h 46mUnited Airlines
Wed 3-1210:10SIN - STL
1 stop20h 17mUnited Airlines
Deal found 15-9S$ 1,518
Sat 22-1117:29STL - SIN
1 stop36h 46mUnited Airlines
Thu 4-1210:10SIN - STL
2 stops24h 47mUnited Airlines
Deal found 15-9S$ 1,523

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 16 September 2025. 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 10-11

16:14-17:45

1 stop35h 31m

Singapore Changi

Fri 14-11

09:00-23:59

1 stop28h 59m

S$ 1,346

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 29-10

17:29-07:00

1 stop24h 31m

Singapore Changi

Wed 5-11

10:10-16:27

1 stop20h 17m

S$ 1,441

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 17-11

17:29-08:00

1 stop24h 31m

Singapore Changi

Thu 4-12

10:10-16:27

1 stop20h 17m

S$ 1,441

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 18-11

17:29-08:00

1 stop24h 31m

Singapore Changi

Thu 4-12

10:10-16:27

1 stop20h 17m

S$ 1,441

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 23-11

18:43-20:15

2 stops35h 32m

Singapore Changi

Wed 3-12

22:20-10:04

2 stops25h 44m

S$ 1,446

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 17-11

13:35-08:00

2 stops28h 25m

Singapore Changi

Mon 1-12

22:20-16:28

2 stops32h 08m

S$ 1,446

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 23-11

18:43-20:15

2 stops35h 32m

Singapore Changi

Thu 4-12

10:10-16:27

1 stop20h 17m

S$ 1,446

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 18-11

16:55-08:00

2 stops25h 05m

Singapore Changi

Mon 1-12

22:20-21:58

2 stops37h 38m

S$ 1,446

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 18-11

18:43-20:15

2 stops35h 32m

Singapore Changi

Wed 3-12

10:10-16:27

1 stop20h 17m

S$ 1,446

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 23-11

18:43-20:15

2 stops35h 32m

Singapore Changi

Tue 2-12

10:10-20:57

2 stops24h 47m

S$ 1,446

Flights are sorted by cheapest return flights first.

Deals found on 16-9

Showing 1-10 of 18 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

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis?

Currently, January is the cheapest month in which you can book a flight from St. Louis (average of S$ 1,399). Flying from St. Louis in October will prove the most costly (average of S$ 1,854). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from St. Louis?

From St. Louis you can expect to find greater availability for the following destinations: Chicago (914 flights per day), Atlanta (263 flights per day) and Dallas (203 flights per day).

Orlando
Orlando
From S$ 176

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Orlando, with prices starting at S$ 225. Explore other affordable destinations below.

Orlando
Orlando
From S$ 176

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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 16 September 2025.

  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Denver, Athens, Cancún. 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$ 225 to Orlando Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 225 to fly from St. Louis.

  • What is the cheapest month to fly from St. Louis?

    Currently, the cheapest month for flights from St. Louis is January. The most expensive month for flights is October. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • 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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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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