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Look for other cheap flights to Lambert-St Louis

$862 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Australia to St. Louis

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
19:40 - 23:59
BNE
-
STL
20h 19m
1 stop
American Airlines Logo
09:34 - 06:30
STL
-
BNE
28h 56m
1 stop
$1,256American Airlines
Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
09:40 - 14:47
BNE
-
STL
21h 07m
1 stop
American Airlines Logo
07:04 - 05:00
STL
-
BNE
29h 56m
1 stop
$1,259American Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
11:40 - 15:37
BNE
-
STL
19h 57m
1 stop
United Airlines Logo
06:45 - 07:30
STL
-
BNE
32h 45m
1 stop
$1,277United Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
10:30 - 16:59
MEL
-
STL
22h 29m
2 stops
United Airlines Logo
19:05 - 08:15
STL
-
MEL
22h 10m
1 stop
$1,317United Airlines
Fri, 27 Mar - Sun, 5 Apr
United Airlines Logo
10:30 - 20:41
MEL
-
STL
26h 11m
2 stops
United Airlines Logo
18:35 - 07:30
STL
-
MEL
45h 55m
2 stops
$1,320United Airlines
Fri, 27 Mar - Sun, 5 Apr
Delta Logo
09:10 - 00:21
MEL
-
STL
31h 11m
2 stops
Delta Logo
18:59 - 07:50
STL
-
MEL
45h 51m
2 stops
$1,328Delta
Fri, 27 Mar - Sun, 5 Apr
Air Canada Logo
11:20 - 15:29
SYD
-
STL
45h 09m
2 stops
Air Canada Logo
08:41 - 09:35
STL
-
SYD
31h 54m
2 stops
$1,613Air Canada
Tue, 17 Feb - Tue, 24 Feb
Air Canada Logo
11:20 - 15:15
SYD
-
STL
44h 55m
2 stops
Air Canada Logo
08:41 - 09:35
STL
-
SYD
55h 54m
2 stops
$1,707Air Canada
Tue, 3 Feb - Tue, 17 Feb
Qantas Airways Logo
17:15 - 23:59
LST
-
STL
47h 44m
2 stops
Qantas Airways Logo
06:38 - 16:35
STL
-
LST
40h 57m
2 stops
$2,244Qantas Airways
Thu, 19 Feb - Mon, 23 Feb
Qantas Airways Logo
17:15 - 23:59
LST
-
STL
47h 44m
2 stops
Qantas Airways Logo
06:38 - 16:35
STL
-
LST
40h 57m
2 stops
$2,250Qantas Airways
Thu, 19 Feb - Mon, 23 Feb

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 20 January 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

19:40-23:59

1 stop20h 19m

Lambert-St Louis

Mon 9/2

09:34-06:30

1 stop28h 56m

$1,256

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

09:40-14:47

1 stop21h 07m

Lambert-St Louis

Mon 9/2

07:04-05:00

1 stop29h 56m

$1,259

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

11:40-15:37

1 stop19h 57m

Lambert-St Louis

Mon 9/2

06:45-07:30

1 stop32h 45m

$1,277

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 27/3

10:30-16:59

2 stops22h 29m

Lambert-St Louis

Sun 5/4

19:05-08:15

1 stop22h 10m

$1,317

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 27/3

10:30-20:41

2 stops26h 11m

Lambert-St Louis

Sun 5/4

18:35-07:30

2 stops45h 55m

$1,320

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 27/3

09:10-00:21

2 stops31h 11m

Lambert-St Louis

Sun 5/4

18:59-07:50

2 stops45h 51m

$1,328

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 17/2

11:20-15:29

2 stops45h 09m

Lambert-St Louis

Tue 24/2

08:41-09:35

2 stops31h 54m

$1,613

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 3/2

11:20-15:15

2 stops44h 55m

Lambert-St Louis

Tue 17/2

08:41-09:35

2 stops55h 54m

$1,707

LauncestonSt. Louis

LST - STL

LSTSTL

Launceston

Thu 19/2

17:15-23:59

2 stops47h 44m

Lambert-St Louis

Mon 23/2

06:38-16:35

2 stops40h 57m

$2,244

LauncestonSt. Louis

LST - STL

LSTSTL

Launceston

Thu 19/2

17:15-23:59

2 stops47h 44m

Lambert-St Louis

Mon 23/2

06:38-16:35

2 stops40h 57m

$2,250

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 August is, on average, the cheapest month to fly to St. Louis from Australia, with most prices found around $1,683. If you aren’t able to travel to St. Louis during the month of August, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,772.

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 SYDNEYAugust15% cheaperFlying from Sydney to St. Louis costs on average just $1,683 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYDecember31% more expensiveIt costs about $2,597 for flights to St. Louis from Sydney in December
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly575% more users visitedMore momondo users searched in flights to St. Louis from Sydney in July 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

$862

Best Round-Trip Price

$1,256

Fastest flight time

40h 07m

Popular in

July
The best one-way flight price to St. Louis from Australia in the last 72 hours is $862 (Brisbane to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Australia in the last 72 hours is $1,256 (Brisbane to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 40h 07m (Melbourne to Lambert-St Louis).
Search Deals
July has the highest demand for flights to St. Louis, with a 8% 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 January 2026, there are 4 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
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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

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $1,105
Brisbane to Lambert-St Louis Flightsfrom $856
Melbourne to Lambert-St Louis Flightsfrom $883
Devonport to Lambert-St Louis Flightsfrom $2,076