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Cheap Flights from St. Louis to Sydney $1,151.86

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Cheapest Flights from St. Louis to Sydney (STL to SYD)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Sydney (STL to SYD)

Question : Looking for the cheapest flight over the next 30 days?
Answer : As of November 28th, the best day for booking to Sydney (SYD) from Saint Louis (STL) is December 5th. Bookings have been made roughly 22% below the average price for this route.

Question : How long do most people stay in Sydney when they fly in from Saint Louis?
Answer : Of course you're not most people, but if you were, you'd stay roughly 16 days.

Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : For the month of December, the cheapest day to fly is Sunday. Flexibility is paramount when booking travel plans in order to keep costs down.

Question : Which airline is offering the cheapest round-trip flight from STL to SYD?
Answer : Delta Air Lines has been booking passengers at the cheapest fare for flights scheduled throughout the next three months.