STL - MEL

$989 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 2/3. 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

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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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

Tue, 10 Feb - Thu, 19 Feb
 Logo
17:54 - 18:45STL-MEL
31h 51m2 stops
 Logo
07:00 - 22:24MEL-STL
32h 24m2 stops
$1,660
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Qantas Airways Logo
17:09 - 05:00STL-MEL
43h 51m1 stop
Qantas Airways Logo
19:20 - 23:42MEL-STL
45h 22m2 stops
$1,661Qantas Airways
Find Deal
Wed, 29 Oct - Wed, 5 Nov
American Airlines Logo
14:15 - 09:30STL-MEL
27h 15m2 stops
American Airlines Logo
12:00 - 23:42MEL-STL
28h 42m1 stop
$1,900American Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
American Airlines Logo
06:39 - 09:30STL-MEL
34h 51m1 stop
American Airlines Logo
12:00 - 23:42MEL-STL
28h 42m1 stop
$1,909American Airlines
Find Deal
Sun, 1 Feb - Sun, 1 Mar
Delta Logo
19:05 - 08:00STL-MEL
43h 55m2 stops
Delta Logo
10:10 - 16:50MEL-STL
23h 40m2 stops
$1,946Delta
Find Deal
Sun, 1 Feb - Fri, 27 Feb
United Airlines Logo
17:00 - 10:00STL-MEL
24h 00m1 stop
United Airlines Logo
13:00 - 16:44MEL-STL
20h 44m1 stop
$1,960United Airlines
Find Deal
Sat, 7 Feb - Mon, 23 Feb
United Airlines Logo
17:00 - 10:00STL-MEL
24h 00m1 stop
United Airlines Logo
11:30 - 16:34MEL-STL
22h 04m2 stops
$1,966United Airlines
Find Deal
Tue, 3 Feb - Wed, 25 Feb
Air Canada Logo
16:05 - 13:35STL-MEL
52h 30m3 stops
Air Canada Logo
08:00 - 15:29MEL-STL
48h 29m3 stops
$2,026Air Canada
Find Deal
Sat, 22 Nov - Fri, 12 Dec
Air Canada Logo
16:05 - 15:35STL-MEL
54h 30m3 stops
Air Canada Logo
08:00 - 15:29MEL-STL
48h 29m3 stops
$2,101Air Canada
Find Deal
Mon, 29 Dec - Sun, 25 Jan
Delta Logo
06:00 - 08:00STL-MEL
33h 00m2 stops
Delta Logo
10:10 - 20:39MEL-STL
27h 29m2 stops
$2,202Delta
Find Deal

Everything you should know

Top airlines
Qantas Airways
Cheapest • from $1,661 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$1,660
Overall average: $1,859
Multi-carrier
Tue 10/2Thu 19/2
STL - MEL • 2 stops
Cheapest one-way flight
$989
Multi-carrier
Mon 2/3
STL - MEL • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Melbourne!
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.

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 February, where tickets cost $1,859 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $2,689 and $2,655 respectively.

Good to know

Low seasonJanuary
Cheapest flight$989
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly (15% 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 $659 for a one-way ticket and $1,106 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Melbourne, with oneworld being the most commonly used for this route.

  • 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 8929 reviews
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

2.0 MediocreAnonymous, Sept 2025SFO - MEX
Read more United Airlines reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

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

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