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S$ 116+ 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 29-7. 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
8 Jul — 15 Jul1
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 3 July 2025.

Sun 9-1107:00STL - SIN
2 stops27h 55mMultiple Airlines
Fri 21-1110:00SIN - STL
2 stops26h 47mMultiple Airlines
Deal found 3-7S$ 1,338
Mon 1-1216:43STL - SIN
2 stops25h 17mUnited Airlines
Mon 15-1222:20SIN - STL
2 stops36h 33mUnited Airlines
Deal found 30-6S$ 1,400
Mon 1-906:45STL - SIN
2 stops45h 45mJapan Airlines
Sun 14-921:50SIN - STL
2 stops39h 09mJapan Airlines
Deal found 1-7S$ 1,408
Sun 30-1106:45STL - SIN
2 stops32h 15mDelta
Sun 14-1201:30SIN - STL
2 stops48h 02mDelta
Deal found 30-6S$ 1,482
Wed 3-1206:15STL - SIN
2 stops45h 20mANA
Tue 16-1206:35SIN - STL
2 stops26h 50mANA
Deal found 30-6S$ 1,491
Wed 3-1213:35STL - SIN
2 stops28h 20mAir Canada
Sun 14-1210:00SIN - STL
2 stops67h 29mAir Canada
Deal found 30-6S$ 1,619
Thu 21-808:46STL - SIN
2 stops31h 14mKorean Air
Thu 28-801:10SIN - STL
2 stops35h 14mKorean Air
Deal found 1-7S$ 1,627

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 3 July 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

Sun 9-11

07:00-00:55

2 stops27h 55m

Singapore Changi

Fri 21-11

10:00-22:47

2 stops26h 47m

S$ 1,338

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 1-12

16:43-08:00

2 stops25h 17m

Singapore Changi

Mon 15-12

22:20-20:53

2 stops36h 33m

S$ 1,400

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 1-9

06:45-17:30

2 stops45h 45m

Singapore Changi

Sun 14-9

21:50-23:59

2 stops39h 09m

S$ 1,408

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 30-11

06:45-05:00

2 stops32h 15m

Singapore Changi

Sun 14-12

01:30-11:32

2 stops48h 02m

S$ 1,482

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 3-12

06:15-17:35

2 stops45h 20m

Singapore Changi

Tue 16-12

06:35-19:25

2 stops26h 50m

S$ 1,491

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 3-12

13:35-07:55

2 stops28h 20m

Singapore Changi

Sun 14-12

10:00-15:29

2 stops67h 29m

S$ 1,619

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 21-8

08:46-05:00

2 stops31h 14m

Singapore Changi

Thu 28-8

01:10-23:24

2 stops35h 14m

S$ 1,627

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 6-12

07:00-21:55

3 stops48h 55m

S$ 736

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 28-12

18:30-00:50

2 stops40h 20m

S$ 831

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 28-12

05:56-00:50

2 stops28h 54m

S$ 977

Flights are sorted by cheapest return flights first.

Deals found on 2-7

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$ 1,128). Flying from St. Louis in June will prove the most costly (average of S$ 1,802). 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.
See what other customers who have flown with ANA, Korean Air, andJapan Airlines from St. Louis have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.4
Very Good

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.0
Very Good

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Food

7.7

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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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 3 July 2025.
  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Boston, Cancún, Atlanta. 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$ 2,349.

  • 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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