$581 Find Cheap Flights from South Pacific to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 1/14. 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

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Everything you should know

Cheapest round-trip
$878
Overall average: $837
United Airlines
Wed 1/28Wed 2/25
MEL - STL • 2 stops
Cheapest one-way
$581
American Airlines
Wed 1/14
MEL - STL • 2 stops
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from South Pacific to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from South Pacific to St. Louis 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 round-trip flight deals from South Pacific to St. Louis

Wed, Jan 28 - Wed, Feb 25
United Airlines Logo
11:30 am - 10:00 pm
MEL
-
STL
27h 30m2 stops
United Airlines Logo
3:15 pm - 9:30 am
STL
-
MEL
25h 15m2 stops
$878United Airlines
Wed, Jan 28 - Wed, Feb 25
American Airlines Logo
4:05 pm - 10:59 pm
MEL
-
STL
23h 54m1 stop
American Airlines Logo
11:46 am - 5:00 am
STL
-
MEL
24h 14m1 stop
$903American Airlines
Wed, Jan 28 - Wed, Feb 4
Air Canada Logo
11:20 am - 3:29 pm
SYD
-
STL
45h 09m2 stops
Air Canada Logo
4:05 pm - 9:35 am
STL
-
SYD
48h 30m2 stops
$1,096Air Canada
Sat, Apr 4 - Tue, Apr 14
United Airlines Logo
6:00 pm - 5:52 am
MEL
-
STL
51h 52m2 stops
United Airlines Logo
10:00 am - 8:15 am
STL
-
MEL
31h 15m2 stops
$1,097United Airlines
Wed, Jan 28 - Wed, Feb 25
Air Canada Logo
8:00 am - 3:29 pm
MEL
-
STL
48h 29m3 stops
Air Canada Logo
4:05 pm - 3:35 pm
STL
-
MEL
54h 30m3 stops
$1,147Air Canada
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
9:40 pm - 1:54 pm
SYD
-
STL
33h 14m2 stops
Multiple Airlines Logo
2:50 pm - 7:45 pm
STL
-
SYD
35h 55m2 stops
$1,160Multiple Airlines
Wed, Feb 18 - Sun, Feb 22
Air Canada Logo
11:20 am - 8:26 pm
SYD
-
STL
26h 06m2 stops
Air Canada Logo
6:00 pm - 9:35 am
STL
-
SYD
46h 35m2 stops
$1,170Air Canada
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
6:05 am - 11:59 pm
CHC
-
STL
36h 54m2 stops
American Airlines Logo
6:50 pm - 11:55 pm
STL
-
CHC
58h 05m2 stops
$1,234American Airlines
Wed, Feb 4 - Sun, Feb 8
Qantas Airways Logo
6:00 am - 2:43 pm
MEL
-
STL
25h 43m2 stops
Qantas Airways Logo
5:20 pm - 1:35 pm
STL
-
MEL
27h 15m2 stops
$1,250Qantas Airways
Wed, Feb 4 - Sun, Feb 8
Qantas Airways Logo
6:00 am - 2:43 pm
MEL
-
STL
25h 43m2 stops
Qantas Airways Logo
5:20 pm - 7:45 pm
STL
-
MEL
33h 25m2 stops
$1,252Qantas Airways
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$581
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Melbourne to St. Louis

FAQs for booking flights from South Pacific to St. Louis

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

    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 South Pacific to St. Louis.

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

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

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

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

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

    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 St. Louis from South Pacific up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from South Pacific to St. Louis

 
Need help choosing which airline to fly with from South Pacific to St. Louis? 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.
7.5
Qantas AirwaysOverall score based on 946 reviews
7.2Entertainment
7.5Comfort
7.0Food
7.7Boarding
8.1Crew
Airline reviews

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

6.0 GoodSandipan, Oct 2025
SYD - DFW
Read more Qantas Airways reviews

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

No internet on flight, which makes log travels really hard.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

One of the best Qantas business flights I've had. Quality product

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

Traditional economy class. Not a full flight so spare seats. Food and drinks were good

Their aircraft are old and amenities lack way behind other international carriers leaving from BNE. Even in economy

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

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

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

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

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

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.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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

Information on the airport you'll fly into in St. Louis