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Cheap flights from St. Louis to Melbourne Airport from $1,578

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEL
23 Jan — 30 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. Louis to Melbourne

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis to Melbourne
Explore the most affordable flight options available from St. Louis to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 December 2025.

Wed 31/1214:45STL - MEL
2 stops25h 45mUnited Airlines
Wed 14/111:30MEL - STL
2 stops24h 57mUnited Airlines
Deal found 22/12$1,912
Wed 31/1215:30STL - MEL
2 stops38h 15mQantas Airways
Wed 14/116:05MEL - STL
1 stop20h 24mQantas Airways
Deal found 22/12$2,398
Wed 31/1206:00STL - MEL
2 stops33h 00mDelta
Wed 14/110:10MEL - STL
3 stops30h 15mDelta
Deal found 22/12$4,109
Wed 31/1216:05STL - MEL
3 stops53h 35mMultiple Airlines
Wed 14/108:00MEL - STL
3 stops48h 29mMultiple Airlines
Deal found 22/12$4,239
Wed 31/1206:20STL - MEL
1 stop34h 10mAmerican Airlines
Wed 14/112:00MEL - STL
1 stop28h 59mAmerican Airlines
Deal found 22/12$5,982

Find flight deals from St. Louis to Melbourne

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Melbourne (MEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 December 2025.

Round-trip from

$1,578

Popular in

July

Cheapest in

January

Average price

$2,321
Qantas Airways
  • Qantas Airways
  • 5/2-12/2
  • 3 total stops
  • 58h 19m total
  • St. Louis to Melbourne
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($55 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from St. Louis to Melbourne that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 24 December 2025.
Use the filters below to find and compare flights from St. Louis to Melbourne Airport that are best for you.

Fly from

St. Louis

Fly to

Melbourne

Route

Depart

Return

Price

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 5/2

17:04-15:35

2 stops29h 31m

Melbourne

Thu 12/2

12:00-23:48

1 stop28h 48m

$1,578

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 13/4

06:30-06:45

1 stop33h 15m

Melbourne

Fri 24/4

13:35-18:17

1 stop19h 42m

$1,672

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 5/2

17:04-18:45

2 stops32h 41m

Melbourne

Thu 12/2

07:00-19:25

2 stops29h 25m

$1,749

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

18:50-06:00

1 stop43h 10m

Melbourne

Sun 19/4

09:45-23:16

1 stop28h 31m

$1,783

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 13/4

11:43-07:50

2 stops29h 07m

Melbourne

Fri 24/4

10:00-21:17

2 stops26h 17m

$1,820

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 6/2

10:19-08:00

2 stops28h 41m

Melbourne

Sun 22/2

10:10-00:25

2 stops31h 15m

$1,820

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

12:04-08:50

2 stops28h 46m

Melbourne

Sun 19/4

10:00-00:22

2 stops29h 22m

$1,820

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 2/1

18:44-05:00

1 stop41h 16m

Melbourne

Thu 22/1

16:05-19:29

1 stop20h 24m

$1,861

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

11:47-06:00

1 stop26h 13m

Melbourne

Sun 19/4

08:15-16:11

2 stops22h 56m

$1,883

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

19:05-09:15

1 stop22h 10m

Melbourne

Sun 19/4

10:55-18:24

1 stop22h 29m

$1,924

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 11 results
1
2

Best time to book a flight from St. Louis to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from St. Louis with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Melbourne Airport

What is the cheapest month to book a flight from St. Louis to Melbourne Airport?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Melbourne Airport (average of $1,608). Flying from St. Louis to Melbourne Airport in July is currently the most expensive (average of $2,323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to MEL?

Find hourly flight availability from St. Louis to Melbourne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 28% on flights from St. Louis to Melbourne Airport by exploring options for tickets in the morning.

How much does it cost for a return flight from St. Louis to Melbourne Airport?

Reviews of airlines servicing Melbourne

Get insights into the airlines that provide service to Melbourne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Melbourne. Reviews last updated 24 December 2025.
See what other customers who have flown with United Airlines from St. Louis to Melbourne Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,110 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,110 reviews
United Airlines
7.4
Good
9,110 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Melbourne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Melbourne?

    Lambert-St Louis (STL), located 20.4 km from the city centre, is the airport you fly out of when you book flights from St. Louis to Melbourne. 1 airline have flights from Lambert-St Louis to Melbourne on a regular basis. Booking flights from Lambert-St Louis to Melbourne should not be difficult; the airport handles an average of 0 outbound flights to Melbourne per day.

  • How long is the flight from St. Louis to Melbourne Airport?

    There are many flights that can get you from St. Louis to Melbourne Airport in 29h 07m. Fly via Qantas Airways or Delta to get the fastest option. The distance from St. Louis to Melbourne Airport is about 15255 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from St. Louis to Melbourne Airport round-trip?

    Cheapflights users have booked flights from St. Louis to Melbourne Airport round-trip from $2,116. United Airlines is priced at 6% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to Melbourne that include hotel bookings?

    Yes. In addition to deals on St. Louis to Melbourne flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Melbourne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Melbourne.

  • Can I find deals for business class flights from St. Louis to Melbourne?

    Yes. Cheapflights offers flight deals from St. Louis to Melbourne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Melbourne Airport?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Melbourne Airport (average of $1,608). Flying from St. Louis to Melbourne Airport in July is currently the most expensive (average of $2,323). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Geelong
Dandenong
Ballarat
Apollo Bay
St Kilda
Tullamarine
Lorne
Phillip Island
Shepparton
Torquay
Sorrento
Daylesford
Mornington
Brighton
Doncaster

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Melbourne

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Melbourne flights

Top airline flying from St. Louis to Melbourne

Discover the top airline that operate flights from St. Louis to Melbourne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 24 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,116Average$2,377FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Melbourne?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Melbourne. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Melbourne?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Melbourne.

Can Cheapflights find flights from St. Louis to Melbourne with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Melbourne flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Melbourne become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to Melbourne flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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