S$ 257+ 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 15-4. 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
20 Apr — 27 Apr1
1 adult
1 adult, Economy, 0 bags

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 21 March 2026. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 13-9

16:29-08:50

2 stops27h 21m

Singapore Changi

Thu 17-9

19:40-20:03

2 stops37h 23m

S$ 1,534

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 4-5

19:06-18:35

1 stop34h 29m

Singapore Changi

Mon 18-5

20:35-05:47

1 stop22h 12m

S$ 1,694
Fastest return journey

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 3-5

19:06-06:45

1 stop22h 39m

Singapore Changi

Sun 10-5

20:35-05:47

1 stop22h 12m

S$ 1,826

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 14-5

20:30-18:35

2 stops33h 05m

Singapore Changi

Sat 23-5

08:45-18:17

1 stop22h 32m

S$ 1,832

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 13-9

08:52-18:35

1 stop44h 43m

Singapore Changi

Thu 17-9

08:45-18:24

1 stop22h 39m

S$ 1,957

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 30-4

08:30-18:35

1 stop45h 05m

Singapore Changi

Thu 7-5

09:00-18:22

1 stop22h 22m

S$ 2,023

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 15-7

19:23-18:35

1 stop34h 12m

Singapore Changi

Sun 26-7

20:35-15:46

2 stops32h 11m

S$ 2,028
Cheapest one-way

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 16-6

17:33-12:35

3 stops30h 02m

S$ 2,013

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 16-6

19:56-12:35

2 stops27h 39m

S$ 2,020

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 27-8

19:32-09:15

3 stops48h 43m

S$ 3,183

Flights are sorted by cheapest return flights first.

Deals found on 18-3

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from St. Louis

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Estimated return price
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Travel insights for flights from St. Louis

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Direct flights from Missouri

Book a direct flight from one of these other cities located in Missouri.

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 21 March 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, Dallas/Fort Worth Airport. 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.

  • 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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