St. Louis (STL) → Singapore (SIN)
About St. Louis to Singapore Flights
Discover the best flights from St. Louis to Singapore, covering 15,319 km in approximately 19h 39m. St. Louis (STL) to Singapore (SIN) is one of the major long-haul routes connecting United States and Singapore. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from St. Louis to Singapore.
12-Month Price History
Flight prices from St. Louis to Singapore vary significantly throughout the year. February typically offers the best deals with average prices around $2779, while July sees the highest prices, averaging $4635. Savvy travelers can save up to 40% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
161 days
For best prices
Booking Tips
For the best prices on St. Louis to Singapore flights, we recommend booking 119 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
Scoot TR | $4010 | $16550 | $22240 |
Air France AF | $4150 | $14790 | $24400 |
British Airways BA | $4470 | $13840 | $21930 |
Delta Air Lines DL | $4570 | $16310 | $25200 |
United Airlines UA | $4600 | $15150 | $19730 |
American Airlines AA | $4760 | $14370 | $19800 |
Singapore Airlines SQ | $4840 | $19760 | $36880 |
Scoot
TR
Economy
$4010
Business
$16550
First
$22240
Air France
AF
Economy
$4150
Business
$14790
First
$24400
British Airways
BA
Economy
$4470
Business
$13840
First
$21930
Delta Air Lines
DL
Economy
$4570
Business
$16310
First
$25200
United Airlines
UA
Economy
$4600
Business
$15150
First
$19730
American Airlines
AA
Economy
$4760
Business
$14370
First
$19800
Singapore Airlines
SQ
Economy
$4840
Business
$19760
First
$36880
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
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Frequently Asked Questions
How long is the flight from St. Louis to Singapore?
The flight time from St. Louis (STL) to Singapore (SIN) is approximately 19 hours and 39 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between St. Louis and Singapore?
The aerial distance between St. Louis and Singapore is 15,319 kilometers (9,519 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from St. Louis to Singapore?
Several airlines operate flights between St. Louis and Singapore, including Singapore Airlines, Scoot, American Airlines and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from St. Louis to Singapore?
Based on historical data, February typically offers the lowest airfares for flights from St. Louis to Singapore. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Singapore?
For the best prices on St. Louis to Singapore flights, we recommend booking 148 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from St. Louis to Singapore?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Singapore should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between St. Louis and Singapore?
St. Louis operates on America/Chicago time zone, while Singapore is in the Asia/Singapore time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.