S$ 188+ 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 24-1. 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
4 Jan — 11 Jan1
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 5 December 2025.

Good round-trip deal

S$ 228 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 5 December 2025.

Mon 19-107:04STL - SIN
2 stops32h 36mMultiple Airlines
Mon 26-107:40SIN - STL
2 stops30h 19mMultiple Airlines
Deal found 4-12S$ 1,309
Tue 20-111:05STL - SIN
2 stops28h 35mCathay Pacific
Tue 27-107:40SIN - STL
2 stops29h 19mCathay Pacific
Deal found 4-12S$ 1,319
Thu 29-111:05STL - SIN
2 stops28h 35mCathay Pacific
Mon 2-214:05SIN - STL
2 stops42h 11mCathay Pacific
Deal found 2-12S$ 1,359
Sat 17-111:05STL - SIN
2 stops34h 50mCathay Pacific
Fri 23-101:25SIN - STL
2 stops30h 48mCathay Pacific
Deal found 3-12S$ 1,448
Fri 16-111:05STL - SIN
2 stops29h 30mAmerican Airlines
Sat 31-108:15SIN - STL
2 stops23h 58mAmerican Airlines
Deal found 3-12S$ 1,461
Mon 19-117:00STL - SIN
1 stop25h 00mUnited Airlines
Mon 26-122:20SIN - STL
2 stops25h 02mUnited Airlines
Deal found 4-12S$ 1,463
Sun 15-206:30STL - SIN
2 stops27h 55mCathay Pacific
Wed 18-201:25SIN - STL
2 stops36h 23mCathay Pacific
Deal found 3-12S$ 1,521
Sat 17-111:20STL - SIN
2 stops30h 40mUnited Airlines
Sat 24-122:20SIN - STL
1 stop20h 51mUnited Airlines
Deal found 3-12S$ 1,587
Fri 16-106:00STL - SIN
2 stops36h 00mUnited Airlines
Sat 31-122:20SIN - STL
1 stop20h 51mUnited Airlines
Deal found 4-12S$ 1,592
Sun 15-217:25STL - SIN
1 stop36h 50mUnited Airlines
Thu 19-210:10SIN - STL
1 stop20h 34mUnited Airlines
Deal found 3-12S$ 1,718
Sat 17-111:05STL - SIN
2 stops37h 50mMultiple Airlines
Sat 24-120:45SIN - STL
3 stops35h 29mMultiple Airlines
Deal found 3-12S$ 1,875

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 5 December 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 19-1

07:04-05:40

2 stops32h 36m

Singapore Changi

Mon 26-1

07:40-23:59

2 stops30h 19m

S$ 1,309

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 29-1

11:05-05:40

2 stops28h 35m

Singapore Changi

Mon 2-2

14:05-18:16

2 stops42h 11m

S$ 1,359

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 16-1

11:05-06:35

2 stops29h 30m

Singapore Changi

Sat 31-1

08:15-18:13

2 stops23h 58m

S$ 1,461

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 19-1

17:00-08:00

1 stop25h 00m

Singapore Changi

Mon 26-1

22:20-09:22

2 stops25h 02m

S$ 1,463

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 20-1

17:00-08:00

1 stop25h 00m

Singapore Changi

Tue 27-1

10:10-20:58

2 stops24h 48m

S$ 1,463

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 15-2

06:30-00:25

2 stops27h 55m

Singapore Changi

Wed 18-2

01:25-23:48

2 stops36h 23m

S$ 1,521

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 17-1

11:20-08:00

2 stops30h 40m

Singapore Changi

Sat 24-1

22:20-05:11

1 stop20h 51m

S$ 1,587

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 16-1

06:00-08:00

2 stops36h 00m

Singapore Changi

Sat 31-1

22:20-05:11

1 stop20h 51m

S$ 1,592

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 12-1

19:43-17:35

3 stops55h 52m

S$ 592

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 17-1

13:40-08:45

2 stops29h 05m

S$ 744

Flights are sorted by cheapest return flights first.

Deals found on 3-12

Showing 1-10 of 16 results
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Best time to book a flight from St. Louis

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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 5 December 2025.
  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Denver, Cancún, 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$ 228 to Orlando Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 228 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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