STL - MEL

$1,300 Find Cheap Flights from St. Louis to Melbourne

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Melbourne departing on 18/3. 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, 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
$1,300
Overall average: $1,934
Qantas Airways
Wed 18/3Wed 25/3
STL - MEL • 2 stops
Cheapest one-way flight
Multiple Airlines
Sun 1/2
STL - MEL • multi-stop
Top airlines
Qantas Airways
Cheapest • from $1,300 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 13% 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

Wed, 18 Mar - Wed, 25 Mar
Qantas Airways Logo
18:50 - 08:20
STL
-
MEL
45h 30m
2 stops
Qantas Airways Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,300Qantas Airways
Tue, 17 Mar - Tue, 24 Mar
Qantas Airways Logo
18:08 - 08:20
STL
-
MEL
46h 12m
2 stops
Qantas Airways Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,339Qantas Airways
Fri, 20 Mar - Fri, 27 Mar
Qantas Airways Logo
16:13 - 15:35
STL
-
MEL
31h 22m
2 stops
Qantas Airways Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,475Qantas Airways
Wed, 18 Mar - Wed, 25 Mar
Delta Logo
10:12 - 07:00
STL
-
MEL
28h 48m
2 stops
Delta Logo
09:10 - 23:25
MEL
-
STL
30h 15m
2 stops
$1,686Delta
Fri, 3 Apr - Sun, 19 Apr
Delta Logo
07:03 - 08:50
STL
-
MEL
33h 47m
2 stops
Delta Logo
10:00 - 21:19
MEL
-
STL
26h 19m
2 stops
$1,758Delta
Fri, 20 Mar - Fri, 27 Mar
American Airlines Logo
09:35 - 05:00
STL
-
MEL
27h 25m
1 stop
American Airlines Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,821American Airlines
Wed, 18 Mar - Wed, 25 Mar
Qantas Airways Logo
16:13 - 05:00
STL
-
MEL
20h 47m
1 stop
Qantas Airways Logo
16:05 - 19:29
MEL
-
STL
19h 24m
1 stop
$1,822Qantas Airways
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
14:31 - 09:30
STL
-
MEL
26h 59m
2 stops
American Airlines Logo
16:05 - 20:32
MEL
-
STL
20h 27m
1 stop
$1,827American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
16:13 - 09:30
STL
-
MEL
25h 17m
2 stops
American Airlines Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,828American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
American Airlines Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,835American 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.

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 $1,850 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $2,538 and $2,282 respectively.

Good to know

Low seasonFebruary
Cheapest flight$1,300
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (2% 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 $1,300 for a return ticket.

  • 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 9222 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

The attendant on board was amazing. She should be doing business/first international long haul.

10.0 ExcellentJeremy, Feb 2026
EWR - BTV
Read more United Airlines reviews

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

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

Information on your arrival and departure airports