SGD 352️ Cheap Flights from St. Louis to Sidney (2024)

App

Customer Support

SGD

Search Bookings

Trip.com

Flights

Flights to United States

Flights to Sidney

Flights from St. Louis to Sidney

Hotels in Sidney

Worldwide Coverage

Flights to over 5,000 cities

One-stop Service Guarantee

Price guaranteed upon confirmed payment, booking guaranteed once tickets issued

Secure Payment

Convenient & reliable booking and payment system

St. Louis to Sidney - Flights Starting at SGD 353

Book one-way or return flights from St. Louis to Sidney from as little as SGD 353. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

We've found these cheap flights for you. You may book a one-way or round trip as per your needs.

We monitor flight fares to help you seize the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Cheapest airlines flights from St. Louis to Sidney

View airlines operating flights from St. Louis to Sidney. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From SGD 352

Delta Air Lines

From SGD 428

United Airlines

From SGD 470

Alaska Airlines

From SGD 639

American Airlines

From SGD 748

ANA airlines

Find more flights and airlines

Alternative Routes from St. Louis to Sidney

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Sidney.

Cheapest
STL
23:06
15h 53m
2 transfer
SDY
13:59
St. Louis Lambert International Airport - Sidney-Richland Municipal Airport
Thu, May 16Frontier Airlines
SGD 352
STL
23:06
15h 53m
2 transfer
SDY
13:59
St. Louis Lambert International Airport - Sidney-Richland Municipal Airport
Thu, May 16Frontier Airlines
SGD 352
Find More Flights

Frequently Asked Questions

When are flight tickets from St. Louis (STL) to Sidney (SDY) the cheapest?
Airlines adjust prices for flights from St. Louis to Sidney based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from St. Louis (STL) to Sidney (SDY) cost?
According to Trip.com's data, the lowest price is around SGD 563.

How to find a cheap flight from St. Louis to Sidney

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Sidney. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com