£592 Cheap Flights from Singapore (SIN) to St. Louis (STL)

Book with confidence

Compare flights from Singapore to St. Louis easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Singapore to St. Louis. Operating between them flights per day, 15 airlines cover the route. And fly direct, getting you to Lambert-St. Louis Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Changi to Lambert-St. Louis Intl..

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.

Grab a great deal on your flight from Changi (SIN) to Lambert-St. Louis Intl. (STL)

The easiest way to view the best deals on flights from Singapore to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Changi to Lambert-St. Louis Intl. start at just and range up to .

To find an even better deal, try

• being flexible on your dates – midweek flights can be cheaper
• looking for other airports near Singapore and St. Louis
• booking your flight during , the cheapest month on this route
• varying your flight times – early morning and late at night are sometimes cheaper

Why you should book your Singapore to St. Louis flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Changi to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.

Frequently Asked Questions

How much is a flight from Singapore Airport to Lambert Field?

If you're travelling between Changi Airport and St. Louis Lambert International Airport, round-trip flights start from . This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.

Do I need to pay a cancellation fee if I cancel my flight from Changi Airport to Lambert Field?

Every air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

How do I find cheap flights from Changi Airport to STL that have flexible change policies?

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SIN to Lambert-St. Louis Intl. Airport (STL) flights, you'll see a "no change fees" filter for you to select.

How far is the flight from Changi Airport to Lambert-St. Louis Intl. Airport (STL)?

With a flight distance of 15,300 kilometres from SIN (SIN) to STL (STL), this is a long-haul journey. Make sure you drink lots of water and go for a short walk down the aisle from time to time.

Which airlines fly direct from SIN to Lambert Field?

If you want to fly straight from SIN to Lambert Field, you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route.

Are Singapore Airport to STL flight tickets cheaper when they're purchased at the last minute?

Tickets from Changi Airport to St. Louis Lambert International Airport are available up to a year prior to departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.