$583 Cheap Flights from Melbourne (MEL) to St. Louis (STL)

View $583 flight on Mon, Mar 23, 2026Opens in a new window

Popular airlines from Melbourne Airport (MEL) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Melbourne to St. Louis (MEL-STL)

Prices were available within the past 7 days and start at $583 for one-way flights and $1,138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qantas Airways
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,138 Roundtrip, found 3 days ago
$1,138
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,138 found 3 days ago
Air Canada
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,482 Roundtrip, found 3 days ago
$1,482
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,482 found 3 days ago
Air Canada
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,509 Roundtrip, found 3 days ago
$1,509
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,509 found 3 days ago
Qantas Airways
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,539 Roundtrip, found 3 days ago
$1,539
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,539 found 3 days ago
Air New Zealand
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,548 Roundtrip, found 3 days ago
$1,548
Roundtrip
found 3 days ago
Select Air New Zealand flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,548 found 3 days ago
Qantas Airways
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,556 Roundtrip, found 3 days ago
$1,556
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,556 found 3 days ago
Air Canada
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,563 Roundtrip, found 3 days ago
$1,563
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,563 found 3 days ago
Air New Zealand
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,571 Roundtrip, found 3 days ago
$1,571
Roundtrip
found 3 days ago
Select Air New Zealand flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,571 found 3 days ago
Virgin Australia
Sun, Feb 1 - Thu, Feb 12
MEL
Melbourne
STL
St. Louis
$1,578 Roundtrip, found 3 days ago
$1,578
Roundtrip
found 3 days ago
Select Virgin Australia flight, departing Sun, Feb 1 from Melbourne to St. Louis, returning Thu, Feb 12, priced at $1,578 found 3 days ago
American Airlines
Fri, Oct 17 - Fri, Oct 31
MEL
Melbourne
STL
St. Louis
$1,641 Roundtrip, found 2 days ago
$1,641
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 17 from Melbourne to St. Louis, returning Fri, Oct 31, priced at $1,641 found 2 days ago

Frequently asked questions

How much does a flight from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight from $583 or cheap return flight from $1,138 from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL)?
February is the cheapest month to fly from MEL to STL. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from MEL to STL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL)?
You'll need to hop on a flight with a layover if you're traveling from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from MEL to STL?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book a ticket from MEL to STL often results in higher prices. While you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book a MEL to STL flight and hotel package?
Booking a MEL to STL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tullamarine Airport (MEL) to Lambert-St. Louis Intl. Airport (STL)?
If you booked your MEL to STL flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Tullamarine
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$1,137
Distance
9484 mi

Book with confidence

Melbourne to St. Louis Flights

The cheapest times to fly from Melbourne to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Melbourne to St. Louis are during the month of February. You can find some of the cheapest flights from Melbourne to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Melbourne to St. Louis

Sunday is one of the best days to book for cheap flights from Melbourne to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Melbourne to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Melbourne to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $583 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Melbourne to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Melbourne to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Melbourne to St. Louis Flights

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*Available to One Key members.