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Cheap flights from St. Louis (STL) to Singapore (SIN) from $1,415

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. 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
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
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The best prices from Lambert-St Louis to Singapore Changi are usually found in April or February, booked 67 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from St. Louis to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 5, 2024.

Popular in

June

Cheapest in

April

Average price

$1,652

Round-trip from

$1,139
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 17% potential price drop
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Average for round-trip flights in May 2024
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From Lambert-St Louis to Singapore Changi
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What is the cheapest day to fly round-trip from St. Louis to Singapore?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 50% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to Singapore?

Find a great deal and save up to 2% by booking at least 10 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Singapore within the next two weeks, with the cheapest ticket starting at $1,351.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, April can be a great choice for travel to Singapore. Flights to Singapore from St. Louis in April are about $1,706 on average during April, but can be found for as low as $1,370.

When is the cheapest time to fly from St. Louis to Singapore (STL - SIN)?

When flying from St. Louis to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 9% versus a flight in the afternoon.

Cheap Finnair flights from St. Louis to Singapore

Explore cheap flight options specifically provided by Finnair for the route between St. Louis and Singapore. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.
Check out some of the cheapest Finnair flights we've come across from St. Louis to Singapore. It's recommended that users confirm their flight details before booking.
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Tue 8/139:45 pmSIN - STL
2 stops37h 23mFinnair
Deal found 5/3$1,524
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Mon 8/129:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,580
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Wed 8/149:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,600
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Fri 8/169:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,675
Sat 7/67:00 amSTL - SIN
2 stops46h 35mFinnair
Mon 8/129:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,705
Sat 7/67:00 amSTL - SIN
2 stops46h 35mFinnair
Wed 8/149:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,725
Sun 7/76:09 pmSTL - SIN
2 stops35h 26mFinnair
Mon 8/129:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$2,000
Sun 7/712:46 pmSTL - SIN
2 stops40h 49mFinnair
Wed 8/149:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$2,020
Sun 7/76:09 pmSTL - SIN
2 stops35h 26mFinnair
Fri 8/169:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$2,095

Cheap United Airlines flights from St. Louis to Singapore

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Singapore. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.
Some of the best deals we've found on United Airlines flights traveling from St. Louis to Singapore. Deals frequently update to provide users with more options.
Mon 7/811:25 amSTL - SIN
2 stops29h 50mUnited Airlines
Thu 8/158:45 amSIN - STL
2 stops24h 46mUnited Airlines
Deal found 5/3$1,757
Sat 6/85:31 pmSTL - SIN
2 stops36h 14mUnited Airlines
Sun 6/169:00 pmSIN - STL
2 stops28h 46mUnited Airlines
Deal found 5/3$1,789
Fri 5/249:05 amSTL - SIN
2 stops32h 10mUnited Airlines
Thu 6/68:45 amSIN - STL
2 stops25h 04mUnited Airlines
Deal found 5/4$1,802
Mon 7/811:25 amSTL - SIN
2 stops29h 50mUnited Airlines
Fri 8/169:00 pmSIN - STL
2 stops26h 19mUnited Airlines
Deal found 5/3$1,809
Fri 8/210:19 amSTL - SIN
2 stops30h 56mUnited Airlines
Fri 8/168:45 amSIN - STL
2 stops23h 52mUnited Airlines
Deal found 5/4$1,859
Mon 7/811:25 amSTL - SIN
2 stops29h 50mUnited Airlines
Mon 8/129:00 pmSIN - STL
2 stops32h 28mUnited Airlines
Deal found 5/3$1,887
Fri 7/121:45 pmSTL - SIN
2 stops27h 30mUnited Airlines
Thu 8/159:00 pmSIN - STL
2 stops26h 01mUnited Airlines
Deal found 5/3$1,925
Mon 7/811:25 amSTL - SIN
2 stops29h 50mUnited Airlines
Sat 8/109:00 pmSIN - STL
2 stops26h 04mUnited Airlines
Deal found 5/3$1,936
Fri 7/124:36 pmSTL - SIN
2 stops24h 39mUnited Airlines
Fri 8/168:45 amSIN - STL
2 stops23h 52mUnited Airlines
Deal found 5/3$1,978

Cheap St. Louis to Singapore flights in May & June 2024

Find cheap flight options from St. Louis to Singapore specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Prices were last updated on May 5, 2024.
Check out some of the best flight deals from St. Louis to Singapore in 2024. For more flight deals, be sure to check back very soon.
Sat 6/85:31 pmSTL - SIN
2 stops36h 14mUnited Airlines
Sun 6/169:00 pmSIN - STL
2 stops28h 46mUnited Airlines
Deal found 5/3$1,789
Fri 5/249:05 amSTL - SIN
2 stops32h 10mUnited Airlines
Thu 6/68:45 amSIN - STL
2 stops25h 04mUnited Airlines
Deal found 5/4$1,802
Fri 5/245:37 pmSTL - SIN
2 stops32h 53mKLM
Wed 6/512:40 amSIN - STL
2 stops32h 54mKLM
Deal found 5/4$2,186
Sat 6/89:44 amSTL - SIN
2 stops31h 31mAmerican Airlines
Sat 6/151:50 amSIN - STL
2 stops31h 34mAmerican Airlines
Deal found 5/3$2,276
Fri 5/243:25 pmSTL - SIN
1 stop35h 55mLufthansa
Thu 6/611:40 pmSIN - STL
1 stop26h 50mLufthansa
Deal found 5/4$2,481
Fri 5/243:25 pmSTL - SIN
1 stop35h 55mLufthansa
Thu 6/611:25 pmSIN - STL
2 stops27h 05mLufthansa
Deal found 5/4$2,510
Sat 6/84:55 pmSTL - SIN
2 stops34h 55mQantas Airways
Sun 6/1611:30 pmSIN - STL
3 stops36h 28mQantas Airways
Deal found 5/3$2,629
Sat 6/810:42 amSTL - SIN
3 stops39h 43mCathay Pacific
Sat 6/151:45 amSIN - STL
2 stops58h 13mCathay Pacific
Deal found 5/3$3,038
Fri 5/247:41 pmSTL - SIN
1 stop32h 54mMultiple Airlines
Thu 6/69:00 amSIN - STL
1 stop27h 59mMultiple Airlines
Deal found 5/4$4,058

St. Louis to Singapore 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Singapore in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.
Check out some of the best flight deals from St. Louis to Singapore in 2024. For more flight deals, be sure to check back very soon.
Fri 11/157:15 amSTL - SIN
1 stop23h 00mUnited Airlines
Tue 11/1910:15 amSIN - STL
1 stop28h 12mUnited Airlines
Deal found 5/3$1,415
Fri 11/155:30 amSTL - SIN
2 stops24h 45mUnited Airlines
Tue 11/1910:20 pmSIN - STL
2 stops28h 23mUnited Airlines
Deal found 5/3$1,420
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Tue 8/139:45 pmSIN - STL
2 stops37h 23mFinnair
Deal found 5/3$1,524
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Mon 8/129:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,580
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Wed 8/149:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,600
Fri 11/152:54 pmSTL - SIN
2 stops28h 21mQatar Airways
Mon 11/182:00 amSIN - STL
2 stops33h 31mQatar Airways
Deal found 5/4$1,623
Tue 7/97:00 amSTL - SIN
2 stops46h 35mFinnair
Fri 8/169:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,675
Sat 7/67:00 amSTL - SIN
2 stops46h 35mFinnair
Mon 8/129:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,705
Sat 7/67:00 amSTL - SIN
2 stops46h 35mFinnair
Wed 8/149:45 pmSIN - STL
2 stops39h 14mFinnair
Deal found 5/3$1,725

Find flights from St. Louis to Singapore within your budget

Customize your flight search to find flights from St. Louis to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,524 - $2,481

Route

Depart

Return

Price

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Tue 7/9

2 stops46h 35m

Singapore Changi

Tue 8/13

2 stops37h 23m

$1,524

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Mon 7/8

2 stops29h 50m

Singapore Changi

Thu 8/15

2 stops24h 46m

$1,757

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Sat 7/6

2 stops46h 35m

Singapore Changi

Thu 8/15

2 stops34h 16m

$1,800

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Wed 7/10

2 stops34h 15m

Singapore Changi

Tue 8/13

2 stops33h 52m

$1,821

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Sat 7/6

2 stops50h 05m

Singapore Changi

Sun 8/11

2 stops48h 55m

$1,874

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Fri 8/2

2 stops27h 19m

Singapore Changi

Thu 8/15

2 stops33h 52m

$1,935

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Tue 7/9

3 stops40h 38m

Singapore Changi

Tue 8/13

2 stops26h 17m

$2,016

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Fri 5/24

2 stops32h 53m

Singapore Changi

Wed 6/5

2 stops32h 54m

$2,186

Lambert-St LouisSingapore Changi

STL - SIN

STLSIN

Lambert-St Louis

Fri 5/24

1 stop35h 55m

Singapore Changi

Thu 6/6

1 stop26h 50m

$2,481

Flights are sorted by cheapest first

Deals found on 5/3

When is the best time to book a flight from St. Louis to Singapore?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Singapore. Price data was last updated on May 3, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Singapore, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from St. Louis to Singapore?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Singapore. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Singapore flight should consider departing on Sunday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Singapore by month

Plan your trip from St. Louis to Singapore by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Singapore is currently $0 while a round-trip flight costs $1,933. Price data was last updated on April 28, 2024.

Currently, April is the cheapest month in which you can book a flight from St. Louis to Singapore (average of $1,139). Flying from St. Louis to Singapore in June is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$1,176

February

$1,166

March

$1,148

April

$1,139

May

$1,294

June

$1,678

July

$1,565

August

$1,289

September

$1,256

October

$1,215

November

$1,255

December

$1,431

Temperature and rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average temperature and rainfall totals by month.

SIN

Temperature

78.8 - 82.4 °F

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated May 5, 2024.
Get a feel of what it's like to fly with Finnair, United Airlines and American Airlines from St. Louis to Singapore by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

Japan Airlines
8.3
Very good
1,482 reviews
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

KLM
7.9
Good
1,603 reviews
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

Cathay Pacific
7.8
Good
1,107 reviews
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

Finnair
7.8
Good
1,381 reviews
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

Qatar Airways
7.7
Good
4,439 reviews
Japan Airlines
8.3
Very good
1,482 reviews
Check prices

Boarding

8.4

Entertainment

7.8

Comfort

8.2

Crew

8.7

Food

7.9

Overall

8.3

Reviews

1 / 10

Good food. Great crew. Online access to upgrade to Economy Plus was confusing and difficult. Or possibly just sold out. JAL's English website is challenging.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Singapore for under $1,600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Singapore for under $1,600. The cheapest flight booked recently is on Finnair for just $1,524, but on average you can expect to pay $1,785.

  • What are the cheapest airlines flying from St. Louis to Singapore round-trip?

    Cheapflights users have booked flights from St. Louis to Singapore round-trip from $1,524. Other airlines that can offer you cheap pricing are United Airlines, from $1,757, and American Airlines, from $1,821. Finnair is 10% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular airlines that fly from St. Louis to Singapore?

    Consider American Airlines, Delta or Japan Airlines when booking your flight. These represent the most popular airlines when flying from St. Louis to Singapore.

  • What does STL to SIN mean?

    This is defined as Lambert-St Louis Airport (STL) and Singapore Changi Airport (SIN). Codes like Singapore Changi Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to Singapore that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Singapore flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Singapore with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Singapore flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Singapore that include hotel bookings?

    Yes. In addition to deals on St. Louis to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Singapore.

  • Can I find deals for business class flights from St. Louis to Singapore?

    Yes. Cheapflights offers flight deals from St. Louis to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Singapore that allow pets onboard?

    Many airlines flying from St. Louis to Singapore offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Singapore?

    Yes, you can often find last-minute deals on St. Louis to Singapore flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Singapore flight deals updated?

    The St. Louis to Singapore flight deals you see on this page were last updated on 5/4.

See more FAQs

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Alternative routes for St. Louis to Singapore
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from St. Louis to Singapore

Discover the top 6 airlines that operate flights from St. Louis to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,301Average$1,635FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
LufthansaCheapest$1,317Average$1,657FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$1,370Average$1,803FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$1,401Average$1,618FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Japan AirlinesCheapest$1,433Average$1,500FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
DeltaCheapest$1,449Average$1,529FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from St. Louis to Singapore by cabin class

Find flights from St. Louis to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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

How does Cheapflights help users find flights from St. Louis to Singapore?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Singapore from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Singapore?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Singapore from St. Louis.

Can Cheapflights find flights from St. Louis to Singapore with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Singapore, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Singapore become cheaper?

Yes! Start tracking prices for St. Louis to Singapore flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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