$818 Find Cheap Flights from Sydney to Missouri

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Missouri departing on 8/18. 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 Missouri

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Missouri, 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 Sydney to Missouri, as well as popular online travel agencies
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Cheap Flights from Sydney to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis2 stops$818
Kansas City
Kansas City1 stop$834
St. Louis
St. Louis2 stops$818
Kansas City
Kansas City1 stop$834

Book Cheap Sydney to Missouri Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Missouri 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 Sydney to Missouri

Mon, Aug 18 - Sat, Nov 8
American Airlines Logo
9:10 am - 8:18 pmSYD-STL
26h 08m2 stops
American Airlines Logo
11:39 am - 9:00 amSTL-SYD
28h 21m2 stops
$818American Airlines
Find Deal
Mon, Aug 18 - Sat, Nov 8
American Airlines Logo
9:10 am - 3:49 pmSYD-STL
21h 39m2 stops
American Airlines Logo
9:38 am - 9:00 amSTL-SYD
30h 22m2 stops
$820American Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
9:30 am - 6:58 pmSYD-STL
24h 28m2 stops
United Airlines Logo
11:05 am - 6:55 amSTL-SYD
28h 50m2 stops
$830United Airlines
Find Deal
Mon, Aug 18 - Sat, Nov 8
United Airlines Logo
10:20 am - 4:45 pmSYD-STL
21h 25m1 stop
United Airlines Logo
11:20 am - 7:00 amSTL-SYD
26h 40m1 stop
$834United Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
Delta Logo
9:25 am - 2:45 pmSYD-MCI
20h 20m1 stop
Delta Logo
5:45 am - 6:35 amMCI-SYD
33h 50m2 stops
$849Delta
Find Deal
Fri, Sep 12 - Fri, Sep 19
Air Canada Logo
9:20 am - 7:57 pmSYD-STL
49h 37m3 stops
Air Canada Logo
1:30 pm - 7:20 amSTL-SYD
50h 50m2 stops
$883Air Canada
Find Deal
Sun, Oct 12 - Tue, Dec 16
Air Canada Logo
10:20 am - 7:57 pmSYD-STL
49h 37m2 stops
Air Canada Logo
4:37 pm - 9:35 amSTL-SYD
23h 58m2 stops
$885Air Canada
Find Deal
Mon, Oct 13 - Sun, Dec 14
Qantas Airways Logo
10:10 am - 11:05 pmSYD-STL
28h 55m1 stop
Qantas Airways Logo
6:25 am - 7:25 amSTL-SYD
32h 00m1 stop
$1,081Qantas Airways
Find Deal
Mon, Oct 13 - Tue, Dec 16
Qantas Airways Logo
10:10 am - 11:05 pmSYD-STL
28h 55m1 stop
Qantas Airways Logo
6:25 am - 7:25 amSTL-SYD
32h 00m1 stop
$1,130Qantas Airways
Find Deal
Sat, Aug 16 - Wed, Aug 20
Delta Logo
9:25 am - 9:37 pmSYD-MCI
27h 12m1 stop
Delta Logo
3:42 pm - 6:35 amMCI-SYD
23h 53m1 stop
$1,334Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Sydney to Missouri flights

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

How much is a round-trip flight from Sydney to Missouri?

What is the cheapest month to fly from Sydney to Missouri?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Missouri, 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 Sydney to Missouri is November, when tickets cost $1,065 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is $1,619 and $1,565 respectively.

What’s the cheapest day of the week to fly from Sydney to Missouri?

The average price of all round-trip flights from Sydney to Missouri clicked on KAYAK for each day over the last 12 months.

When flying from Sydney to Missouri, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Sydney, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.


Good to know

Low seasonNovember
Cheapest flight$818
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Sydney to St. Louis

FAQs - booking Missouri flights

  • How does KAYAK find such low prices on flights from Sydney to Missouri?

    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 Sydney to Missouri.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Missouri?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Missouri 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 Sydney to Missouri?

    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 from Sydney to Missouri with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Missouri?

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

  • What is the cheapest time of day to fly to Missouri?

    The cheapest time of day to fly to Missouri is generally in the morning, when round-trip flights cost $1,352 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Missouri is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,824.

Reviews of the top airline flying from Sydney to Missouri

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Missouri. 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 Sydney to Missouri? 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 887 reviews
8.2Crew
7.7Boarding
7.2Entertainment
7.4Comfort
6.9Food
Airline reviews

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.

2.0 MediocreAnonymous, Jul 2025LAX - ORD
Read more Qantas Airways reviews

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.

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

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.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

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.

One of the oldest most uncomfortable "lay down" seats I've ever experienced. Old plane and old seats that don't lay flat. The seat back does not even recline - at all. Instead the legrest awkwardly extends to fill the gap between a small cubby into which you must insert your feet/legs. I am 5' 11" and could not lay straight but had to tuck my knees. Ticket was also very expensive. Would not recommend flying business/first on Finair from Melbourne to Bangkok and will not do so again myself.

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

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

Was bumped to a later flight because of inefficiency on part of the airline.

Everything you need to know for your flight from Sydney to Missouri

Information on your arrival and departure airports

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