SYD - STL

$683 Find Cheap Flights from Sydney to St. Louis - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,201
Typical prices: $1,172-$1,585
Qantas Airways
Sun 2/25Fri 3/23
SYD - STL • 1 stop
Cheapest one-way
$683
Typical prices: $680-$886
American Airlines
Tue 11/13
SYD - STL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Sydney and St. Louis. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
July
Cheapest • 19% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $1,312 (round-trip)
San Francisco (SFO)
Shortest trip • 21h 31m (one-way)
Insights
Insights
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to St. Louis (SYD-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sydney to St. Louis

Thu, Feb 25 - Tue, Mar 23
Qantas Airways Logo
2:05 pm - 6:13 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
21h 08m1 stop Dallas/Fort Worth
Qantas Airways Logo
6:00 am - 9:00 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
35h 00m1 stop Los Angeles
$1,201Qantas Airways
Tue, Feb 23 - Mon, Mar 1
United Airlines Logo
11:20 am - 8:54 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
50h 34m2 stops Los Angeles Denver Intl
United Airlines Logo
2:45 pm - 9:05 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
49h 20m2 stops Denver Intl Los Angeles
$1,216United Airlines
Thu, Feb 25 - Tue, Mar 23
United Airlines Logo
9:20 am - 10:25 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
30h 05m1 stop Houston George Bush Intcntl
United Airlines Logo
5:59 pm - 9:20 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
23h 21m2 stops Denver Intl San Francisco
$1,218United Airlines
Thu, Mar 4 - Sun, Mar 28
Air New Zealand Logo
9:55 am - 10:12 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 17m2 stops Auckland Intl Houston George Bush Intcntl
Air New Zealand Logo
6:15 am - 8:45 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
34h 30m2 stops Houston George Bush Intcntl Auckland Intl
$1,329Air New Zealand
Thu, Feb 25 - Tue, Mar 23
Air New Zealand Logo
11:50 am - 10:25 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
27h 35m2 stops Auckland Intl Houston George Bush Intcntl
Air New Zealand Logo
6:15 am - 12:50 pmSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
38h 35m2 stops Houston George Bush Intcntl Auckland Intl
$1,329Air New Zealand
Sun, Mar 7 - Wed, Mar 31
American Airlines Logo
2:05 pm - 7:36 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
22h 31m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 8:05 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
34h 05m1 stop Los Angeles
$1,369American Airlines
Sun, Mar 7 - Wed, Mar 31
Qantas Airways Logo
9:50 pm - 11:59 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
43h 09m2 stops Brisbane Los Angeles
Qantas Airways Logo
6:00 am - 9:20 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
35h 20m2 stops Los Angeles Brisbane
$1,378Qantas Airways
Thu, Mar 4 - Sun, Mar 28
Multiple Airlines Logo
11:50 am - 10:12 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
27h 22m2 stops Auckland Intl Houston George Bush Intcntl
Multiple Airlines Logo
9:23 am - 8:45 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
31h 22m3 stops Chicago O'Hare Intl San Francisco Auckland Intl
$1,379Multiple Airlines
Sun, Mar 7 - Wed, Mar 31
American Airlines Logo
2:05 pm - 8:46 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
23h 41m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
6:00 am - 8:05 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
34h 05m1 stop Los Angeles
$1,403American Airlines
Thu, Mar 4 - Sun, Mar 28
Multiple Airlines Logo
11:50 am - 11:19 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
28h 29m3 stops Auckland Intl Los Angeles Chicago O'Hare Intl
Multiple Airlines Logo
9:23 am - 8:45 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
31h 22m3 stops Chicago O'Hare Intl San Francisco Auckland Intl
$1,485Multiple Airlines
Booking Insights

Price, demand and travel trends for Sydney to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Sydney to St. Louis?

Round-trip flights from Sydney to St. Louis typically range from $1,172 to $1,585. The lowest price found in the past 5 days was $1,201, on Qantas Airways.

What's the cheapest day of the week to fly from Sydney to St. Louis?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Sydney to St. Louis. It’s 16% cheaper than the average day, while Sunday is the most expensive, with prices 24% higher.

What’s the cheapest month to fly from Sydney to St. Louis?

•July is the cheapest month to fly from Sydney to St. Louis at $1,060 round-trip.
•January ($2,201) and April ($1,627) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 107% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Sydney to St. Louis flights

Low season

February

Cheapest flight

$683
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 115% increase in travelers.
One-way flight from Sydney to St. Louis

When to book flights from Sydney to St. Louis

Are your dates flexible? Find out the best times to travel from Sydney to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Sydney to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Sydney to St. Louis?

    Only Economy Class is available on flights from Sydney to St. Louis.

  • How long is a flight from Sydney to St. Louis?

    A nonstop flight from Sydney to St. Louis takes 00m, covering 9,054 miles.

  • Do I need a passport to fly from Sydney to St. Louis?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Sydney to St. Louis flight?

    Round-trip flights from Sydney to St. Louis range from $1,172 to $1,585, with an average of $1,306 over the past 12 months. Anything below $1,172 counts as a good deal.

  • Have flight prices from Sydney to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,201 to $4,915. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Sydney to St. Louis looking right now?

    One-way fares from Sydney to St. Louis are currently higher than usual. Average one-way flight prices are about $953, which is 30% above the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Sydney to St. Louis?

    Flights from Sydney to St. Louis usually depart from Sydney Kingsford Smith (SYD) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Sydney to St. Louis pass through?

    One-stop flights from Sydney to St. Louis most commonly connect through:

    • Dallas/Fort Worth (DFW) - 60% of one-stop connections
    • San Francisco (SFO) - 36% of one-stop connections
    • Los Angeles (LAX) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Sydney to St. Louis?

    Yes. Flexible dates can save you up to 32% on flights from Sydney to St. Louis. Saturday is the cheapest departure day at $1,107 round-trip on average, while Sunday is the most expensive at $1,625, a difference of $518.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Sydney to St. Louis?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 20h 47m, compared with 21h 31m via San Francisco (SFO) and 29h 05m via Los Angeles (LAX).

  • What is the time difference between Sydney and St. Louis?

    St. Louis is 17 hours behind Sydney (Central Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Sydney to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $1,107, about $518 less than Sunday fares (32% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Sydney to St. Louis trip for July. Fares historically average $1,060 round-trip in that month - typically $1,141 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

More options for your flight from Sydney to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Car rentals in St. Louis
Hotels in St. Louis
Vacations in St. Louis