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 S$ 1,375. Other airlines that can offer you cheap pricing are United Airlines, from S$ 1,423, and American Airlines, from S$ 1,607. Air Canada is priced at 25% lower than the current average price of a flight leaving 3 months from now. Find deals

What are the cheapest airlines to fly from St. Louis to Singapore one-way?

The cheapet airlines for a one-way flight from St. Louis to Singapore are Japan Airlines (S$ 3,569), ANA (S$ 4,338), and United Airlines (S$ 7,784). Find deals

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

Travellers seeking maximum savings on their St. Louis to Singapore flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm. Find deals

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Singapore. Flights to Singapore from St. Louis in September are about S$ 1,835 on average during September, but can be found for as low as S$ 1,141.

What is the cheapest time of day to fly from STL to SIN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Singapore as you normally would.

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 holiday 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.

S$ 1,354+ Flights from St. Louis to Singapore

Cheap flight deals from St. Louis to Singapore

Round-trip from	S$ 1,375
Popular in	December
Cheapest in	September
Average price	S$ 1,832

Air Canada
8-9-15-9
4 total stops
79h 17m total
St. Louis to Singapore

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (S$ 184 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (S$ 64 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from St. Louis to Singapore

Cheapest flights from St. Louis to Singapore
Explore the most affordable flight options available from St. Louis to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Fri 5-913:30STL - SIN

2 stops28h 35mAir Canada

Fri 12-906:15SIN - STL

2 stops26h 42mAir Canada

Deal found 29-7S$ 1,354

Sat 13-917:49STL - SIN

1 stop23h 26mUnited Airlines

Sat 20-908:45SIN - STL

1 stop21h 08mUnited Airlines

Deal found 29-7S$ 1,539

Fri 5-906:00STL - SIN

2 stops29h 20mJapan Airlines

Thu 11-901:55SIN - STL

2 stops31h 37mJapan Airlines

Deal found 29-7S$ 1,541

Fri 5-913:30STL - SIN

2 stops28h 35mMultiple Airlines

Thu 11-901:10SIN - STL

3 stops28h 25mMultiple Airlines

Deal found 29-7S$ 2,025

Fri 21-1107:00STL - SIN

2 stops35h 45mQatar Airways

Fri 28-1102:00SIN - STL

2 stops34h 29mQatar Airways

Deal found 28-7S$ 2,270

Sat 13-915:20STL - SIN

2 stops34h 40mEmirates

Fri 19-901:40SIN - STL

2 stops32h 52mEmirates

Deal found 29-7S$ 2,446

Sun 3-811:18STL - SIN

2 stops28h 42mKorean Air

Thu 14-801:10SIN - STL

2 stops35h 12mKorean Air

Deal found 28-7S$ 2,449

Sun 3-816:52STL - SIN

2 stops36h 33mFinnair

Sun 17-821:35SIN - STL

2 stops39h 24mFinnair

Deal found 28-7S$ 2,572

Fri 1-806:00STL - SIN

2 stops28h 40mDelta

Thu 14-801:10SIN - STL

2 stops35h 04mDelta

Deal found 28-7S$ 3,394

Sat 20-1213:55STL - SIN

2 stops40h 15mCathay Pacific

Sun 4-101:25SIN - STL

2 stops30h 33mCathay Pacific

Deal found 28-7S$ 3,613

Best flights from St. Louis to Singapore
Discover carefully curated flight deals from St. Louis to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 July 2025.

Mon 8-913:30STL - SIN

2 stops52h 35mAir Canada

Mon 15-906:15SIN - STL

2 stops26h 42mAir Canada

Deal found 27-7S$ 1,375

Tue 25-1107:00STL - SIN

2 stops27h 55mMultiple Airlines

Fri 28-1110:00SIN - STL

2 stops23h 39mMultiple Airlines

Deal found 27-7S$ 1,412

Mon 8-917:49STL - SIN

1 stop23h 26mUnited Airlines

Mon 15-911:05SIN - STL

2 stops44h 54mUnited Airlines

Deal found 27-7S$ 1,423

Mon 8-906:05STL - SIN

2 stops29h 15mAmerican Airlines

Sun 14-901:55SIN - STL

2 stops24h 28mAmerican Airlines

Deal found 27-7S$ 1,607

Fri 16-115:36STL - SIN

2 stops25h 04mJapan Airlines

Fri 30-102:20SIN - STL

2 stops25h 27mJapan Airlines

Deal found 27-7S$ 1,705

Thu 1-111:14STL - SIN

2 stops28h 26mCathay Pacific

Mon 19-101:25SIN - STL

2 stops35h 02mCathay Pacific

Deal found 29-7S$ 1,761

Tue 25-1118:13STL - SIN

2 stops30h 42mQatar Airways

Thu 27-1102:00SIN - STL

2 stops35h 54mQatar Airways

Deal found 27-7S$ 1,929

Fri 16-115:50STL - SIN

1 stop35h 10mLufthansa

Sat 31-111:05SIN - STL

1 stop40h 50mLufthansa

Deal found 29-7S$ 2,175

Last-minute flights from St. Louis to Singapore
Discover last-minute flight deals from St. Louis to Singapore. Data last updated 30 July 2025 and is based on user searches.

Fri 1-806:00STL - SIN

2 stops28h 40mDelta

Thu 14-801:10SIN - STL

2 stops35h 04mDelta

Deal found 28-7S$ 3,394

Sat 2-819:32STL - SIN

2 stops29h 18mMultiple Airlines

Sat 16-813:10SIN - STL

2 stops38h 16mMultiple Airlines

Deal found 28-7S$ 2,571

Sat 2-813:30STL - SIN

2 stops46h 15mAir Canada

Sun 17-809:10SIN - STL

2 stops44h 21mAir Canada

Deal found 28-7S$ 2,697

Sat 2-810:08STL - SIN

2 stops33h 52mQatar Airways

Thu 14-803:10SIN - STL

2 stops33h 49mQatar Airways

Deal found 28-7S$ 3,557

Sun 3-817:51STL - SIN

2 stops47h 49mUnited Airlines

Fri 15-811:05SIN - STL

2 stops47h 30mUnited Airlines

Deal found 28-7S$ 1,784

Sun 3-811:18STL - SIN

2 stops28h 42mKorean Air

Thu 14-801:10SIN - STL

2 stops35h 12mKorean Air

Deal found 28-7S$ 2,449

Sun 3-816:52STL - SIN

2 stops36h 33mFinnair

Sun 17-821:35SIN - STL

2 stops39h 24mFinnair

Deal found 28-7S$ 2,572

Sun 3-815:30STL - SIN

1 stop35h 35mMultiple Airlines

Sat 16-807:30SIN - STL

2 stops43h 56mMultiple Airlines

Deal found 28-7S$ 3,870

Sun 3-815:30STL - SIN

1 stop35h 55mLufthansa

Sat 16-823:40SIN - STL

1 stop26h 50mLufthansa

Deal found 28-7S$ 5,787

Sun 24-807:23STL - SIN

2 stops45h 07mJapan Airlines

Wed 3-901:55SIN - STL

2 stops34h 04mJapan Airlines

Deal found 28-7S$ 7,107

One-way flights from St. Louis to Singapore
Search for one-way flight options from St. Louis to Singapore. Find affordable one-way fares based on user searches. Data last updated 30 July 2025.

Sat 20-906:00STL - SIN

3 stops50h 30mMultiple Airlines

Deal found 29-7S$ 3,469

Thu 18-1206:30STL - SIN

2 stops44h 55mJapan Airlines

Deal found 28-7S$ 3,569

Sat 20-915:20STL - SIN

2 stops44h 25mANA

Deal found 29-7S$ 4,338

Sun 21-917:49STL - SIN

1 stop35h 36mUnited Airlines

Deal found 29-7S$ 7,784

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 8-9

13:30-07:05

2 stops52h 35m

Singapore Changi

Mon 15-9

06:15-19:57

2 stops26h 42m

S$ 1,375

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 25-11

07:00-00:55

2 stops27h 55m

Singapore Changi

Fri 28-11

10:00-19:39

2 stops23h 39m

S$ 1,412

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 8-9

17:49-06:15

1 stop23h 26m

Singapore Changi

Mon 15-9

11:05-18:59

2 stops44h 54m

S$ 1,423

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 8-9

06:05-00:20

2 stops29h 15m

Singapore Changi

Sun 14-9

01:55-13:23

2 stops24h 28m

S$ 1,607

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 16-1

15:36-06:40

2 stops25h 04m

Singapore Changi

Fri 30-1

02:20-13:47

2 stops25h 27m

S$ 1,705

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 1-1

11:14-05:40

2 stops28h 26m

Singapore Changi

Mon 19-1

01:25-22:27

2 stops35h 02m

S$ 1,761

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 25-11

18:13-14:55

2 stops30h 42m

Singapore Changi

Thu 27-11

02:00-23:54

2 stops35h 54m

S$ 1,929

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 16-1

15:50-17:00

1 stop35h 10m

Singapore Changi

Sat 31-1

11:05-13:55

1 stop40h 50m

S$ 2,175

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 20-9

06:00-21:30

3 stops50h 30m

S$ 3,469

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 18-12

06:30-17:25

2 stops44h 55m

S$ 3,569

Flights are sorted by cheapest return flights first.

Deals found on 29-7

Showing 1-10 of 12 results

Best time to book a flight from St. Louis to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore 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.

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with ANA, Japan Airlines, andCathay Pacific from St. Louis to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

ANA

8.4

Very Good

922 reviews

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Japan Airlines

8.3

Very Good

1,535 reviews

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Cathay Pacific

7.6

Good

948 reviews

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Qatar Airways

7.4

Good

3,609 reviews

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

United Airlines

7.4

Good

8,899 reviews

ANA

8.4

Very Good

922 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Related info for your journey

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 S$ 1,375. Other airlines that can offer you cheap pricing are United Airlines, from S$ 1,423, and American Airlines, from S$ 1,607. Air Canada is priced at 25% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from St. Louis to Singapore one-way?
The cheapet airlines for a one-way flight from St. Louis to Singapore are Japan Airlines (S$ 3,569), ANA (S$ 4,338), and United Airlines (S$ 7,784).
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 holiday 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Little India car hire

Other flights to Singapore

Singapore to Fuzhou flights

Singapore to Amritsar flights

Singapore to Langkawi flights

Singapore to Penang flights

Singapore to Kuantan flights

Singapore to Kuching flights

Singapore to Phuket City flights

Singapore to Ipoh flights

Singapore to Krabi flights

Singapore to Chennai flights

Singapore to Ho Chi Minh City flights

Singapore to Miri flights

Singapore to Langkawi flights

Singapore to Penang flights

Singapore to Kuching flights

Singapore to Kota Kinabalu flights

Singapore to Kuantan flights

Singapore to Surabaya flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from St. Louis to Singapore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Singapore for you. Better yet — we are completely free to use.

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?

Of course! You can now track prices for flights from St. Louis to Singapore and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from St. Louis to Singapore from S$ 1,354

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5-9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Singapore

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Singapore

Cheapest flights from St. Louis to SingaporeExplore the most affordable flight options available from St. Louis to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Explore the most affordable flight options available from St. Louis to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Singapore that are best for you.

Best time to book a flight from St. Louis to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from St. Louis with our price prediction graph.

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with ANA, Japan Airlines, andCathay Pacific from St. Louis to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

What are the cheapest airlines to fly from St. Louis to Singapore one-way?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Singapore
Explore the most affordable flight options available from St. Louis to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.