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Find cheap flights from St. Louis to Australia from $1,569

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 Australia departing on 9/10. 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
Sat 1/6
Sat 8/6

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Best Australia Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Sydney
Sydney1 stop$2,628
Brisbane
Brisbane2 stops$3,165

Good to know

Low season

April

High season

October

Cheapest flight

$1,569
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Sydney

FAQs - booking Australia flights

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

    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 Australia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia from St. Louis 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 St. Louis to Australia?

    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 Australia 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 Australia?

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

See more FAQs

Top tips for finding cheap flights to Australia

  • Morning departure is around 13% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from St. Louis to Australia

 
Need help choosing which airline to fly with from St. Louis to Australia? 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.
7.6
Qantas AirwaysOverall score based on 985 reviews
7.5Entertainment
7.8Boarding
7.4Comfort
8.3Crew
7.1Food
Airline reviews

There was nothing I didn’t like, prices a little lower would help

10.0 ExcellentDaniel, Apr 2024SYD - WGA
Read more about Qantas Airways reviews

There was nothing I didn’t like, prices a little lower would help

Flight delay was informed at the last minute. Food quality is not up to Qantas standard I was unable to book an online boarding pass on any of my 6 flights.

Following a marathon flight riddled by delays and changes from Santiago, Chile, my flight to Melbourne from Sydney was on schedule but I was transferred to the next flight. The reason by ticketing and the floor manager was I missed the entry to flight by one minute! That's right, the emphasised that if I was 1 minute earlier I would be on the flight. I asked what was the point them emphasising 1minute overdue and how that helped me or the situation. They didn't care at all. Replying that if it was one minute earlier they would've done something and smirking delivering the information. Australian's do call Australia home, Qantas calls Australian's suckers.

Rescheduled after ticket purchased and issued, not 2 or 3 times and not a fourth but by 5 times, by Qantas, that's right, 5 changes! Forcing an overnight stay in Chile and need for visa. Qantas can no longer provide basic services as a national or international service provider. Professionalism is extinct and the provider needs to be mentored and educated in perfecting who to operate as an airline. Qantas is the spirit of Australian dissatisfaction.

Amazing! Was put on the earlier flight and I requested for an aisle seat and was given it. Thanks Qantas!

The staff we fantastic and seemed to work very well with each other

Business lounge in Melbourne mediocre. Look at Emirates or Qatar, Qantas! Great friendly crew. Food was good but Emirates is a level above. Business seat good. But can’t compare to Qatar. Main reason for booking Qantas is loyalty and terrific connection via Perth to LHR.

It's only a short trip from Sydney to Melbourne, which i have done many times. The trip met my expectations

The crew were amazing - A great job. They made me feel special and valued.

I really appreciated the fact that when I checked my bags at the Quantas counter after arriving from an international flight an hour early, the agent noticed I had a very long layover. He then found an earlier flight that allowed me to get to Cairns several hours earlier than I planned. That was amazing because I had already traveled over 20 hours and wasn’t looking forward to such a long layover. It allowed me to see my daughter and grandchildren much earlier (it had been two years since I visited last).

Book cheap flights from St. Louis to Australia

Recent return flight deals

31/5Fri
3 stops
34h 35mSTL-MEL
3/7Wed
3 stops
48h 21mMEL-STL
$2,615
3/10Thu
1 stopQantas Airways
23h 40mSTL-SYD
17/10Thu
1 stopQantas Airways
21h 30mSYD-STL
$2,628
18/10Fri
1 stopAir New Zealand
32h 45mSTL-SYD
2/11Sat
2 stopsAir New Zealand
26h 42mSYD-STL
$2,638
18/10Fri
2 stopsAir New Zealand
36h 20mSTL-SYD
2/11Sat
2 stopsAir New Zealand
26h 26mSYD-STL
$2,708
30/5Thu
2 stopsUnited Airlines
24h 30mSTL-MEL
3/7Wed
2 stopsUnited Airlines
40h 22mMEL-STL
$2,732
9/6Sun
2 stopsAir Canada
48h 15mSTL-SYD
29/7Mon
2 stopsAir Canada
26h 45mSYD-STL
$2,764
3/10Thu
1 stopUnited Airlines
21h 55mSTL-SYD
17/10Thu
1 stopUnited Airlines
21h 48mSYD-STL
$2,775
3/10Thu
2 stopsAir Canada
52h 20mSTL-SYD
17/10Thu
3 stopsAir Canada
50h 45mSYD-STL
$3,081
24/6Mon
2 stopsAmerican Airlines
25h 09mSTL-SYD
10/7Wed
1 stopAmerican Airlines
28h 52mSYD-STL
$3,087
21/6Fri
2 stopsAmerican Airlines
25h 09mSTL-SYD
13/7Sat
1 stopAmerican Airlines
28h 52mSYD-STL
$3,240

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Recent one-way flight deals

9/10Wed
1 stopUnited Airlines
21h 55mSTL-SYD
$1,569
27/9Fri
1 stopQantas Airways
22h 35mSTL-SYD
$1,574
27/9Fri
2 stopsAmerican Airlines
25h 27mSTL-SYD
$1,666
27/9Fri
1 stopUnited Airlines
21h 55mSTL-SYD
$1,669
27/9Fri
3 stops
29h 36mSTL-SYD
$1,869
21/6Fri
2 stopsAir New Zealand
26h 55mSTL-MEL
$1,997
21/6Fri
3 stops
27h 08mSTL-MEL
$2,120
3/6Mon
2 stopsJapan Airlines
29h 19mSTL-SYD
$2,902
3/6Mon
1 stopAmerican Airlines
22h 03mSTL-SYD
$5,086
3/6Mon
2 stopsAir New Zealand
37h 20mSTL-SYD
$7,845

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Last minute flights from St. Louis to Australia

Last minute flight, train and bus deals

6/5Mon
multi-stopAir New Zealand
35h 26mSTL-SYD
8/5Wed
multi-stopAir New Zealand
25h 55mSYD-STL
$3,305
6/5Mon
multi-stop
28h 08mSTL-SYD
8/5Wed
multi-stop
25h 55mSYD-STL
$4,008
6/5Mon
multi-stop
19h 55mSTL-SYD
8/5Wed
multi-stop
18h 38mSYD-STL
$4,149
6/5Mon
multi-stop
23h 08mSTL-SYD
8/5Wed
multi-stop
21h 21mSYD-STL
$4,157
6/5Mon
multi-stopAir Canada
29h 20mSTL-SYD
8/5Wed
multi-stopAir Canada
50h 45mSYD-STL
$16,910
6/5Mon
multi-stopQantas Airways
23h 08mSTL-SYD
8/5Wed
multi-stopQantas Airways
20h 42mSYD-STL
$40,519
6/5Mon
multi-stop
23h 08mSTL-SYD
8/5Wed
multi-stop
21h 21mSYD-STL
$41,006
6/5Mon
multi-stopEmirates
32h 55mSTL-SYD
8/5Wed
multi-stopEmirates
41h 35mSYD-STL
$45,989

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St. Louis - Australia Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Australia - St. Louis

Cabin classes: