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$1,055 Cheap flights to St. Louis

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1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to St. Louis

Cheap return flights

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Delta Logo
10:40 - 21:29BNE  Brisbane-STL Lambert-St Louis
26h 49m2 stops Los Angeles Salt Lake City
Delta Logo
18:59 - 07:30STL  Lambert-St Louis-BNE Brisbane
45h 31m2 stops Salt Lake City Los Angeles
$1,355Delta
Fri, 5 Mar - Sun, 21 Mar
Delta Logo
10:40 - 09:09BNE  Brisbane-STL Lambert-St Louis
38h 29m2 stops Los Angeles Atlanta Hartsfield-Jackson
Delta Logo
18:59 - 07:30STL  Lambert-St Louis-BNE Brisbane
45h 31m2 stops Salt Lake City Los Angeles
$1,355Delta
Sun, 28 Feb - Sun, 21 Mar
Delta Logo
10:40 - 20:53BNE  Brisbane-STL Lambert-St Louis
26h 13m2 stops Los Angeles Detroit Metropolitan Wayne County
Delta Logo
15:40 - 07:30STL  Lambert-St Louis-BNE Brisbane
24h 50m2 stops Atlanta Hartsfield-Jackson Los Angeles
$1,355Delta
Fri, 5 Mar - Wed, 24 Mar
United Airlines Logo
11:20 - 20:54SYD  Sydney Kingsford Smith-STL Lambert-St Louis
50h 34m2 stops Los Angeles Denver Intl
United Airlines Logo
14:45 - 09:05STL  Lambert-St Louis-SYD Sydney Kingsford Smith
49h 20m2 stops Denver Intl Los Angeles
$1,738United Airlines
Tue, 23 Feb - Mon, 1 Mar
Qantas Airways Logo
14:05 - 18:09SYD  Sydney Kingsford Smith-STL Lambert-St Louis
21h 04m1 stop Dallas/Fort Worth
Qantas Airways Logo
17:46 - 06:55STL  Lambert-St Louis-SYD Sydney Kingsford Smith
21h 09m1 stop Dallas/Fort Worth
$1,782Qantas Airways
Thu, 25 Feb - Tue, 23 Mar
United Airlines Logo
11:45 - 21:55MEL  Melbourne-STL Lambert-St Louis
26h 10m1 stop San Francisco
United Airlines Logo
19:06 - 08:15STL  Lambert-St Louis-MEL Melbourne
22h 09m1 stop San Francisco
$2,026United Airlines
Fri, 26 Mar - Wed, 7 Apr
United Airlines Logo
11:45 - 21:55MEL  Melbourne-STL Lambert-St Louis
26h 10m1 stop San Francisco
United Airlines Logo
16:17 - 07:30STL  Lambert-St Louis-MEL Melbourne
24h 13m2 stops Houston George Bush Intcntl Los Angeles
$2,026United Airlines
Fri, 26 Mar - Wed, 7 Apr
Qantas Airways Logo
14:05 - 20:16SYD  Sydney Kingsford Smith-STL Lambert-St Louis
23h 11m1 stop Dallas/Fort Worth
Qantas Airways Logo
18:54 - 06:55STL  Lambert-St Louis-SYD Sydney Kingsford Smith
43h 01m1 stop Dallas/Fort Worth
$2,896Qantas Airways
Tue, 23 Feb - Mon, 1 Mar
American Airlines Logo
22:45 - 23:49MEL  Melbourne-STL Lambert-St Louis
42h 04m2 stops Los Angeles Phoenix Sky Harbor Intl
American Airlines Logo
18:55 - 05:00STL  Lambert-St Louis-MEL Melbourne
41h 05m1 stop Dallas/Fort Worth
$2,955American Airlines
Thu, 19 Nov - Mon, 23 Nov
American Airlines Logo
14:05 - 18:30SYD  Sydney Kingsford Smith-STL Lambert-St Louis
21h 25m1 stop Dallas/Fort Worth
American Airlines Logo
06:01 - 09:00STL  Lambert-St Louis-SYD Sydney Kingsford Smith
33h 59m1 stop Los Angeles
$3,362American Airlines
Fri, 8 Jan - Tue, 2 Feb

momondo Fare Finder

 
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BrisbaneSt. Louis

BNE Brisbane - STL Lambert-St Louis

BNESTL

Brisbane

Fri 5/3

10:40-21:29

2 stops26h 49m

Lambert-St Louis

Sun 21/3

18:59-07:30

2 stops45h 31m

$1,355

BrisbaneSt. Louis

BNE Brisbane - STL Lambert-St Louis

BNESTL

Brisbane

Sun 28/2

10:40-09:09

2 stops38h 29m

Lambert-St Louis

Sun 21/3

18:59-07:30

2 stops45h 31m

$1,355

BrisbaneSt. Louis

BNE Brisbane - STL Lambert-St Louis

BNESTL

Brisbane

Fri 5/3

10:40-20:53

2 stops26h 13m

Lambert-St Louis

Wed 24/3

15:40-07:30

2 stops24h 50m

$1,355

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

11:20-20:54

2 stops50h 34m

Lambert-St Louis

Mon 1/3

14:45-09:05

2 stops49h 20m

$1,738
Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 25/2

14:05-18:09

1 stop21h 04m

Lambert-St Louis

Tue 23/3

17:46-06:55

1 stop21h 09m

$1,782

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 26/3

11:45-21:55

1 stop26h 10m

Lambert-St Louis

Wed 7/4

19:06-08:15

1 stop22h 09m

$2,026

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 26/3

11:45-21:55

1 stop26h 10m

Lambert-St Louis

Wed 7/4

16:17-07:30

2 stops24h 13m

$2,026

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 23/2

14:05-20:16

1 stop23h 11m

Lambert-St Louis

Mon 1/3

18:54-06:55

1 stop43h 01m

$2,896

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Thu 19/11

22:45-23:49

2 stops42h 04m

Lambert-St Louis

Mon 23/11

18:55-05:00

1 stop41h 05m

$2,955

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Fri 8/1

14:05-18:30

1 stop21h 25m

Lambert-St Louis

Tue 2/2

06:01-09:00

1 stop33h 59m

$3,362

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

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

The month of January is, on average, the cheapest month to fly to St. Louis from Australia, with most prices found around $1,455. If you aren’t able to travel to St. Louis during the month of January, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $1,515.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport
Find flights from Sydney to St. Louis
CHEAPEST MONTH TO FLY TO ST. LOUIS FROM SYDNEYJanuary22% cheaperFlying from Sydney to St. Louis costs on average just $1,455 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYApril24% more expensiveIt costs about $2,325 for flights to St. Louis from Sydney in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM SYDNEYDecember771% more users visitedMore momondo users searched in flights to St. Louis from Sydney in December than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price

$1,055

Best Round-Trip Price

$1,355

Fastest flight time

29h 25m

Popular in

April
The best one-way flight price to St. Louis from Australia in the last 5 days is $1,055 (Sydney Kingsford Smith to Lambert-St Louis).
Search Deals
The best return flight price to St. Louis from Australia in the last 5 days is $1,355 (Brisbane to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 29h 25m (Sydney Kingsford Smith to Lambert-St Louis).
Search Deals
April has the highest demand for flights to St. Louis, with a 3% price increase on average.
Search Deals

Frequently asked questions about flying to St. Louis

Is there an alternative airport near St. Louis?

Those flying to St. Louis could potentially find better pricing at Belleville Airport (35 km from St. Louis city centre), Marion Williamson County Airport (142 km from St. Louis city centre) or Springfield Capital Airport (142 km from St. Louis city centre) depending on the month and departure airport.

When did momondo last update prices for flights to Lambert-St Louis Airport?

Prices for flights to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights to Lambert-St Louis Airport?

As of November 2026, there are 3 operators available to choose from for flights to Lambert-St Louis Airport.

How old do you have to be to fly to Lambert-St Louis Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Collinsville
St. Charles

Why use momondo?

Why should I use momondo to find a flight deal to St. Louis?

Finding the right flight to St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights to St. Louis with flexible booking policies on momondo?

Flights to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to St. Louis.

I’m not ready to book a flight to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to St. Louis

Popular Flights to St. Louis

Melbourne to Lambert-St Louis Flightsfrom $1,418
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $4,915
Brisbane to Lambert-St Louis Flightsfrom $951
Devonport to Lambert-St Louis Flightsfrom $2,413