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Cheap flights from Melbourne Airport to St. Louis from $863

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
MEL — STL
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Melbourne to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Melbourne (MEL) to St. Louis (STL). 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 31 October 2025.

Round-trip from

$1,421

One-way from

$863

Popular in

September

Cheapest in

January

Average price

$1,635
United Airlines
  • United Airlines
  • 21/12-28/1
  • 3 total stops
  • 65h 57m total
  • Melbourne to St. Louis
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18/1
  • 18/1
  • 3 total stops
  • 59h 39m total
  • Melbourne to St. Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($145 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($64 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Melbourne to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Melbourne to St. Louis
Explore the most affordable flight options available from Melbourne to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Sun 21/1211:30MEL - STL
2 stops41h 57mUnited Airlines
Wed 28/115:11STL - MEL
2 stops25h 19mUnited Airlines
Deal found 31/10$1,421
Sun 21/1212:00MEL - STL
1 stop28h 51mQantas Airways
Wed 28/111:55STL - MEL
1 stop24h 05mQantas Airways
Deal found 31/10$2,683
Sun 21/1213:30MEL - STL
3 stops27h 15mMultiple Airlines
Wed 28/117:12STL - MEL
2 stops24h 08mMultiple Airlines
Deal found 31/10$3,464
Sat 20/1200:45MEL - STL
2 stops33h 01mCathay Pacific
Wed 28/111:05STL - MEL
2 stops32h 25mCathay Pacific
Deal found 31/10$4,474

Cheapflights Fare Finder

 
Customise your flight search to find flights from Melbourne to St. Louis 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 31 October 2025.
Use the filters below to find and compare flights from Melbourne Airport to St. Louis that are best for you.

Fly from

Melbourne

Fly to

St. Louis

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 6/3

11:30-16:52

2 stops22h 22m

Lambert-St Louis

Tue 10/3

16:35-09:00

2 stops48h 25m

$1,648

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 6/3

16:05-19:26

1 stop20h 21m

Lambert-St Louis

Tue 10/3

17:59-05:00

1 stop43h 01m

$1,705

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 6/3

10:10-18:04

2 stops24h 54m

Lambert-St Louis

Tue 10/3

17:30-07:00

2 stops45h 30m

$1,712

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 5/4

09:30-16:26

2 stops21h 56m

Lambert-St Louis

Sat 11/4

16:30-08:15

2 stops48h 45m

$1,967

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 18/1

20:50-15:29

3 stops59h 39m

$863

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 15/4

10:55-10:27

2 stops38h 32m

$901

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 14/1

10:10-23:39

2 stops30h 29m

$901

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 18/1

10:10-21:38

2 stops28h 28m

$901

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 20/11

12:10-18:47

2 stops23h 37m

$997

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Tue 14/4

00:30-14:11

3 stops52h 41m

$1,232

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 12 results
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2

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Melbourne 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 Melbourne Airport to St. Louis

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

Currently, December is the cheapest month in which you can book a flight from Melbourne Airport to St. Louis (average of $1,121). Flying from Melbourne Airport to St. Louis in September is currently the most expensive (average of $1,843). 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 MEL to STL?

Find hourly flight availability from Melbourne to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

When flying from Melbourne Airport to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 34% versus a flight in the evening.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 31 October 2025.
Read reviews from past customers who have flown with Qantas Airways and United Airlines from Melbourne Airport to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
925 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
925 reviews
Qantas Airways
7.5
Good
925 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
United Airlines
7.4
Good
8,996 reviews
Qantas Airways
7.5
Good
925 reviews
Check prices

Comfort

7.5

Entertainment

7.2

Food

7.0

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

Related info for your journey

Find useful and relevant information for your journey from Melbourne to St. Louis. 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 into for flights to St. Louis from Melbourne?

    For a flight from Melbourne to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 20.4 km from the centre vof the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Melbourne per day. 2 airlines have flights to Lambert-St Louis from Melbourne on a regular basis.

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

    Departing from Melbourne Airport to St. Louis will take you 20h 21m. The distance between Melbourne Airport and St. Louis is about 15255 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Melbourne Airport to St. Louis round-trip?

    Currently priced at $1,246, United Airlines will fly you from Melbourne Airport to St. Louis and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Qantas Airways for as low as $1,676. Users have found that United Airlines is 32% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Melbourne to St. Louis 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 Melbourne Airport to St. Louis?

    Currently, December is the cheapest month in which you can book a flight from Melbourne Airport to St. Louis (average of $1,121). Flying from Melbourne Airport to St. Louis in September is currently the most expensive (average of $1,843). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Melbourne to St. Louis

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

Top 2 airlines flying from Melbourne to St. Louis

Discover the top 2 airlines that operate flights from Melbourne to St. Louis. 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,246Average$1,845FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,676Average$2,066FlexibilityNo cancel feeOn-time74%
Search Qantas Airways 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 Melbourne to St. Louis?

When you search for this flight from Melbourne to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Melbourne to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to St. Louis from Melbourne? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Melbourne to St. Louis 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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