STL - MEL

$1,434 Find Cheap Flights from St. Louis to Melbourne

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Melbourne departing on 21/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Melbourne Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Melbourne, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Melbourne, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$1,434
Typical prices: $2,280-$2,457
Qantas Airways
Thu 5/2Fri 20/2
STL - MEL • 1 stop
Cheapest one-way flight
$1,053
United Airlines
Sun 21/12
STL - MEL • 2 stops
When to travel
January
Cheapest • 11% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Melbourne!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Melbourne that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from St. Louis to Melbourne

Thu, 5 Feb - Fri, 20 Feb
Qantas Airways Logo
07:04 - 09:30
STL
-
MEL
33h 26m1 stop
Qantas Airways Logo
06:45 - 23:48
MEL
-
STL
34h 03m2 stops
$1,434Qantas Airways
Thu, 29 Jan - Thu, 5 Feb
Qantas Airways Logo
07:04 - 09:30
STL
-
MEL
33h 26m1 stop
Qantas Airways Logo
06:45 - 23:59
MEL
-
STL
34h 14m2 stops
$1,663Qantas Airways
Thu, 5 Feb - Fri, 20 Feb
Qantas Airways Logo
07:04 - 09:30
STL
-
MEL
33h 26m1 stop
Qantas Airways Logo
12:00 - 23:48
MEL
-
STL
28h 48m1 stop
$1,733Qantas Airways
Fri, 3 Apr - Sun, 19 Apr
Qantas Airways Logo
18:50 - 06:00
STL
-
MEL
43h 10m1 stop
Qantas Airways Logo
09:45 - 23:16
MEL
-
STL
28h 31m1 stop
$1,756Qantas Airways
Mon, 20 Apr - Wed, 10 Jun
Delta Logo
16:00 - 07:50
STL
-
MEL
24h 50m2 stops
Delta Logo
10:00 - 23:38
MEL
-
STL
28h 38m2 stops
$1,757Delta
Fri, 3 Apr - Sun, 19 Apr
American Airlines Logo
14:32 - 07:45
STL
-
MEL
25h 13m2 stops
American Airlines Logo
09:45 - 18:17
MEL
-
STL
23h 32m2 stops
$1,788American Airlines
Thu, 29 Jan - Thu, 5 Feb
Multiple Airlines Logo
17:04 - 18:45
STL
-
MEL
32h 41m2 stops
Multiple Airlines Logo
07:00 - 19:29
MEL
-
STL
29h 29m2 stops
$1,840Multiple Airlines
Thu, 5 Feb - Fri, 20 Feb
American Airlines Logo
11:55 - 09:30
STL
-
MEL
28h 35m2 stops
American Airlines Logo
12:00 - 17:05
MEL
-
STL
22h 05m2 stops
$1,863American Airlines
Thu, 5 Feb - Fri, 20 Feb
United Airlines Logo
16:35 - 09:30
STL
-
MEL
23h 55m2 stops
United Airlines Logo
13:00 - 22:14
MEL
-
STL
26h 14m3 stops
$1,897United Airlines
Wed, 31 Dec - Wed, 14 Jan
United Airlines Logo
14:45 - 09:30
STL
-
MEL
49h 45m2 stops
United Airlines Logo
13:00 - 21:13
MEL
-
STL
25h 13m2 stops
$1,923United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Melbourne flights

Get data-powered insights and trends into flights from St. Louis to Melbourne to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from St. Louis to Melbourne Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Melbourne Airport departing in February.

What is the cheapest month to fly from St. Louis to Melbourne Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Melbourne Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Melbourne Airport is January, where tickets cost $2,021 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $2,662 and $2,392 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$1,053
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly (3% more expensive on average)
Flight from St. Louis to Melbourne

When to book flights from St. Louis to Melbourne

Are your dates flexible? Find out the best times to travel from St. Louis to Melbourne based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Melbourne flights

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

    In the last 3 days, the lowest price for a flight from St. Louis to Melbourne Airport was $1,053 for a one-way ticket and $1,434 for a return.

  • Which aircraft models fly most regularly from St. Louis to Melbourne?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Melbourne?

    Star Alliance is the only airline alliance operating flights between St. Louis and Melbourne.

  • How does KAYAK find such low prices on flights from St. Louis to Melbourne?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Melbourne.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Melbourne?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Melbourne from St. Louis is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Melbourne?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Melbourne with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Melbourne?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Melbourne from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Melbourne

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Melbourne. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Melbourne? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9095 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

10.0 ExcellentMichele, Dec 2025
RSW - ORD
Read more United Airlines reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

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

Information on your arrival and departure airports

St. Louis (STL)
Melbourne (MEL)