SYD - STL

$1,068 Find Cheap Flights from Sydney to St. Louis - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$1,070
Typical prices: $1,133-$1,497
Air Canada
Sat 1/20Tue 2/13
SYD - STL • 2 stops
Cheapest one-way
$1,546
Typical prices: $625-$857
Multiple Airlines
Fri 3/16
SYD - STL • 3 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
September
Cheapest • 17% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $1,273 (round-trip)
Houston George Bush Intcntl (IAH)
Shortest trip • 21h 11m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Jan 20 - Sat, Feb 13
Air Canada Logo
11:20 am - 11:24 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 04m2 stops Vancouver Intl Chicago O'Hare Intl
Air Canada Logo
4:30 pm - 9:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
24h 05m2 stops Denver Intl Vancouver Intl
$1,068Air Canada
Wed, Jan 20 - Sat, Feb 13
Air Canada Logo
11:20 am - 3:26 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
45h 06m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
4:05 pm - 9:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
48h 30m2 stops Toronto Pearson Intl Vancouver Intl
$1,070Air Canada
Wed, Jan 20 - Sat, Feb 13
Air Canada Logo
11:20 am - 8:59 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
26h 39m2 stops Vancouver Intl Denver Intl
Air Canada Logo
11:25 am - 9:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
29h 10m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl
$1,082Air Canada
Sun, Nov 15 - Sun, Nov 29
Air Canada Logo
11:20 am - 3:26 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
45h 06m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
4:05 pm - 9:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
48h 30m2 stops Toronto Pearson Intl Vancouver Intl
$1,096Air Canada
Wed, Oct 21 - Sat, Oct 24
Air Canada Logo
10:20 am - 11:44 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 24m2 stops Vancouver Intl Denver Intl
Air Canada Logo
8:55 am - 8:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
31h 40m2 stops Toronto Pearson Intl Vancouver Intl
$1,125Air Canada
Wed, Oct 21 - Sat, Oct 24
American Airlines Logo
10:10 am - 11:46 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 36m1 stop Los Angeles
American Airlines Logo
7:10 pm - 11:45 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
24h 35m2 stops Dallas/Fort Worth Brisbane
$1,133American Airlines
Sun, Nov 15 - Sun, Nov 29
Air Canada Logo
11:20 am - 11:24 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 04m3 stops Vancouver Intl Toronto Pearson Intl Chicago O'Hare Intl
Air Canada Logo
4:05 pm - 9:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
48h 30m2 stops Toronto Pearson Intl Vancouver Intl
$1,136Air Canada
Wed, Oct 21 - Sat, Oct 24
Air Canada Logo
10:20 am - 11:44 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 24m2 stops Vancouver Intl Denver Intl
Air Canada Logo
5:10 am - 8:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
35h 25m2 stops Denver Intl Vancouver Intl
$1,140Air Canada
Wed, Oct 21 - Sat, Oct 24
Air Canada Logo
10:20 am - 11:44 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
29h 24m2 stops Vancouver Intl Denver Intl
Air Canada Logo
8:00 am - 8:35 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
32h 35m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl
$1,148Air Canada
Wed, Oct 21 - Sat, Oct 24
American Airlines Logo
10:10 am - 1:44 pmSYD  Sydney Kingsford Smith-STL Lambert-St Louis
43h 34m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
3:20 pm - 6:55 amSTL  Lambert-St Louis-SYD Sydney Kingsford Smith
23h 35m1 stop Dallas/Fort Worth
$1,154American 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 from Sydney to St. Louis with more confidence.

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

Round-trip flights from Sydney to St. Louis start at $1,070. Prices are below average for this route right now, with typical round-trip fares ranging from $1,133 to $1,497. The lowest price found in the past 5 days was $1,070 on Air Canada.

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

Saturday is the cheapest day of the week to fly from Sydney to St. Louis, it is 15% cheaper than the average day. Sunday is the most expensive day with flight prices 6% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•September is the cheapest month to fly from Sydney to St. Louis at $1,039 round-trip.
•April ($1,627) and December ($1,439) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 56% 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

June

Cheapest flight

$1,546
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 15% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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) - 63% of one-stop connections
    • San Francisco (SFO) - 27% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 5% of one-stop connections
    • Los Angeles (LAX) - 5% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

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

    On the Sydney to St. Louis route, being flexible with your departure day can save you up to 21%. Saturday is the cheapest day at $1,064 round-trip on average, while Sunday is the most expensive at $1,336: a $272 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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.

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

    A nonstop flight from Sydney to St. Louis takes 0h 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 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 $2,287, which is 214% above the typical average for this route.

  • 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 49m, compared with 21h 11m via Houston George Bush Intcntl (IAH) and 21h 30m via San Francisco (SFO).

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

    St. Louis is 15 hours behind Sydney (Central Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

  • 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 starting from around $31 for economy cars. Top options include:
    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

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

    Round-trip flights from Sydney to St. Louis range from $1,133 to $1,497, with an average of $1,249 over the past 12 months. Anything below $1,133 counts as a good deal.

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 can be flexible, aim for a Saturday departure instead of Sunday. On this route, Saturday flights average $1,064 - about $272 less than Sunday (20% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Sydney to St. Louis trip for September. Fares historically average $1,039 round-trip in that month - typically $588 less than the most expensive month, which is April (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.
    - Drury Inn & Suites St. Louis Airport
    - Renaissance St. Louis Airport Hotel
    - 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