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Not ready to book? to track prices.Find the cheapest flights from St. Louis to Sydney
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How to get the cheapest flight ticket from St. Louis to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Sydney?
What is the cheapest month to fly to Sydney?
The month of March is, on average, the cheapest month to fly to Sydney from St. Louis, with most prices found around $2,050. If you aren’t able to travel to Sydney during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $2,125.
What is the cheapest day to depart on your flight to Sydney?
Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $0. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,820.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is at midday. momondo users have found flights departing from St. Louis to Sydney at midday for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $2,820 on average. Flights to Sydney from St. Louis in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
How far in advance should I book a flight to Sydney?
We recommend purchasing flights from St. Louis to Sydney 60 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Sydney for $2,403. However, in the past 72 hours, people saw flights from St. Louis for as low as $2,388.
Can stopping save me money on St. Louis to Sydney flights?
You could potentially save up to 42% on your flight if you consider stops on a St. Louis to Sydney flight.
How have St. Louis to Sydney flight prices changed over time?
As of December 2024, prices for St. Louis to Sydney flights are approximately 28% cheaper when compared to flights at the same time last year.
When to book flights from St. Louis to Sydney
Cheap St. Louis to Sydney (STL to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Sydney
How far is Lambert-St Louis to Sydney Kingsford Smith by plane?
A flight from Lambert-St Louis to Sydney Kingsford Smith will travel around 14576.1 km. In terms of flight time, this usually takes a little over 20h 06m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Sydney Kingsford Smith Airport?
Prices for flights from Lambert-St Louis Airport to Sydney Kingsford Smith Airport refresh daily.
How old do you have to be to fly from Lambert-St Louis Airport to Sydney Kingsford Smith Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Sydney?
It is quick and easy to find St. Louis to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.
Can I find flights from St. Louis to Sydney with flexible booking policies on momondo?
momondo does allow users to show only those flights to Sydney from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Sydney?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Sydney.
I’m not ready to book a flight from St. Louis to Sydney right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from St. Louis and alert you when they change.