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S$ 237+ 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 24-4. 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
30 Mar — 6 Apr1
1 adult

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 25 March 2025.

Fri 2-513:30STL - SIN
2 stops28h 35mAir Canada
Thu 12-609:10SIN - STL
2 stops47h 48mAir Canada
Deal found 24-3S$ 1,340
Thu 1-507:00STL - SIN
1 stop22h 25mUnited Airlines
Thu 12-608:45SIN - STL
1 stop22h 15mUnited Airlines
Deal found 24-3S$ 1,462
Sun 7-909:50STL - SIN
2 stops42h 40mJapan Airlines
Fri 19-901:55SIN - STL
2 stops34h 04mJapan Airlines
Deal found 24-3S$ 1,652
Thu 1-513:30STL - SIN
2 stops52h 35mMultiple Airlines
Wed 7-521:50SIN - STL
2 stops51h 46mMultiple Airlines
Deal found 24-3S$ 1,835
Thu 1-506:15STL - SIN
2 stops29h 35mCathay Pacific
Thu 29-501:50SIN - STL
2 stops29h 43mCathay Pacific
Deal found 24-3S$ 1,889
Fri 1-817:29STL - SIN
2 stops35h 56mFinnair
Sat 9-821:35SIN - STL
2 stops33h 46mFinnair
Deal found 24-3S$ 1,985
Fri 1-810:08STL - SIN
2 stops33h 52mQatar Airways
Fri 8-803:10SIN - STL
2 stops47h 54mQatar Airways
Deal found 24-3S$ 2,258
Sat 24-517:17STL - SIN
2 stops33h 13mKLM
Sat 31-500:40SIN - STL
2 stops29h 07mKLM
Deal found 24-3S$ 2,498
Fri 2-515:30STL - SIN
1 stop26h 20mLufthansa
Wed 11-600:05SIN - STL
2 stops35h 40mLufthansa
Deal found 24-3S$ 3,177
Mon 21-409:39STL - SIN
2 stops32h 01mANA
Fri 2-506:15SIN - STL
2 stops46h 34mANA
Deal found 24-3S$ 7,071
Sat 24-513:38STL - SIN
3 stops41h 47mBritish Airways
Sun 1-623:20SIN - STL
2 stops32h 13mBritish Airways
Deal found 24-3S$ 18,182

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 25 March 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

Fri 2-5

13:30-07:05

2 stops28h 35m

Singapore Changi

Thu 12-6

09:10-19:58

2 stops47h 48m

S$ 1,340

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 1-5

07:00-18:25

1 stop22h 25m

Singapore Changi

Thu 12-6

08:45-18:00

1 stop22h 15m

S$ 1,462

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 7-9

09:50-17:30

2 stops42h 40m

Singapore Changi

Fri 19-9

01:55-22:59

2 stops34h 04m

S$ 1,652

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 1-5

13:30-07:05

2 stops52h 35m

Singapore Changi

Wed 7-5

21:50-12:36

2 stops51h 46m

S$ 1,835

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 1-5

06:15-00:50

2 stops29h 35m

Singapore Changi

Thu 29-5

01:50-18:33

2 stops29h 43m

S$ 1,889

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 1-8

17:29-18:25

2 stops35h 56m

Singapore Changi

Sat 9-8

21:35-18:21

2 stops33h 46m

S$ 1,985

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 1-8

10:08-09:00

2 stops33h 52m

Singapore Changi

Fri 8-8

03:10-14:04

2 stops47h 54m

S$ 2,258

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 24-5

17:17-15:30

2 stops33h 13m

Singapore Changi

Sat 31-5

00:40-16:47

2 stops29h 07m

S$ 2,498

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 2-5

15:30-06:50

1 stop26h 20m

Singapore Changi

Wed 11-6

00:05-22:45

2 stops35h 40m

S$ 3,177

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 21-4

09:39-06:40

2 stops32h 01m

Singapore Changi

Fri 2-5

06:15-15:49

2 stops46h 34m

S$ 7,071

Flights are sorted by cheapest return flights first.

Deals found on 24-3

Showing 1-10 of 11 results
1
2

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, September is the cheapest month in which you can book a flight from St. Louis (average of S$ 1,185). Flying from St. Louis in June will prove the most costly (average of S$ 1,999). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Airline reviews for flights from St. Louis

Get insights into the airlines that provide service from St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 200,618 searches.

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
8.3
Very Good

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Boarding

8.4

Overall

8.3

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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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 25 March 2025.
  • What are the most popular destinations to fly to from St. Louis?

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

  • What is the cheapest first class flight from St. Louis?

    To fly first-class from St. Louis on a budget, select a flight to Minneapolis from S$ 2,468.

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

    Currently, the cheapest month for flights from St. Louis is September. The most expensive month for flights is June. 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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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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