Cheap flights from Australia to St. Louis from $1,115
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to St. Louis departing on 24/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Australia to St. Louis
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 cheapest month to fly to St. Louis?
The month of November is, on average, the cheapest month to fly to St. Louis from Australia, with most prices found around $1,640. If you aren’t able to travel to St. Louis during the month of November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,842.
What is the cheapest day to depart on your flight to St. Louis?
According to our data, Saturday is the cheapest day to fly to St. Louis from Australia. The lowest ticket price found for a Saturday departure recently was $2,151. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Australia to St. Louis on a Thursday will generally be more expensive and average around $2,756. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Australia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $2,203 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $3,199 per ticket.
Can stopping save me money on Australia to St. Louis flights?
You could potentially save up to 29% on your flight if you consider stops on a Australia to St. Louis flight.
What is the cheapest airline that flies from Australia to Lambert-St Louis?
United Airlines, Delta, and American Airlines are the most popular carriers operating from Australia to Lambert-St Louis
Which airlines fly to St. Louis?
United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to St. Louis from Australia according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
Cheap Australia to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Australia to St. Louis
When did momondo last update prices for flights from Australia to Lambert-St Louis Airport?
Prices for flights from Australia to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Australia to Lambert-St Louis Airport?
As of June 2025, there are 5 operators available to choose from for flights from Australia to Lambert-St Louis Airport.
How old do you have to be to fly from Australia to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Australia to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Australia to St. Louis
Compare and see reviews for airlines that fly from Australia to St. Louis with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,369 | Free cancellation | Rating 7.4 8,798 reviews | |||
| PriceFrom $1,458 | Free cancellation | Rating 7.1 9,553 reviews | |||
| PriceFrom $1,504 | Free cancellation | Rating 8.0 483 reviews | |||
| PriceFrom $1,684 | Free cancellation | Rating 7.5 856 reviews | |||
| PriceFrom $1,845 | Free cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Australia to St. Louis?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Australia to St. Louis. momondo saves you time and could save you money on your trip.
Can I find flights from Australia to St. Louis with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Australia to St. Louis flights to just show those with flexible booking policies.
How can momondo help me find flights from Australia to St. Louis?
momondo provides multiple filters to help you find the best flight to St. Louis from Australia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Australia to St. Louis right now. Can momondo alert me if prices change?
If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Australia and alert you when they change.