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Look for other cheap flights to Lambert-St Louis

$869 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 15/1. 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.
Air Canada Logo
10:45 - 15:29
BNE
-
STL
44h 44m2 stops
Air Canada Logo
16:05 - 08:45
STL
-
BNE
48h 40m2 stops
$1,189Air Canada
Sun, 25 Jan - Sun, 1 Feb
Air Canada Logo
10:45 - 15:29
BNE
-
STL
44h 44m2 stops
Air Canada Logo
16:15 - 08:45
STL
-
BNE
24h 30m2 stops
$1,244Air Canada
Thu, 5 Feb - Mon, 9 Feb
Air Canada Logo
10:45 - 15:29
BNE
-
STL
44h 44m2 stops
Air Canada Logo
16:15 - 08:45
STL
-
BNE
24h 30m2 stops
$1,246Air Canada
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
11:40 - 20:58
BNE
-
STL
25h 18m2 stops
United Airlines Logo
17:00 - 07:30
STL
-
BNE
22h 30m1 stop
$1,271United Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
11:40 - 15:37
BNE
-
STL
19h 57m1 stop
United Airlines Logo
17:00 - 07:30
STL
-
BNE
22h 30m1 stop
$1,272United Airlines
Thu, 5 Feb - Mon, 9 Feb
Qantas Airways Logo
09:40 - 14:47
BNE
-
STL
21h 07m1 stop
Qantas Airways Logo
11:55 - 06:30
STL
-
BNE
26h 35m1 stop
$1,421Qantas Airways
Thu, 5 Feb - Mon, 9 Feb
Qantas Airways Logo
09:40 - 14:47
BNE
-
STL
21h 07m1 stop
Qantas Airways Logo
17:20 - 06:30
STL
-
BNE
21h 10m1 stop
$1,582Qantas Airways
Sun, 25 Jan - Sun, 1 Feb
American Airlines Logo
12:10 - 19:29
BNE
-
STL
23h 19m2 stops
American Airlines Logo
15:37 - 06:30
STL
-
BNE
22h 53m1 stop
$1,583American Airlines
Sun, 25 Jan - Sun, 1 Feb
Air New Zealand Logo
11:45 - 22:00
SYD
-
STL
27h 15m2 stops
Air New Zealand Logo
06:00 - 08:45
STL
-
SYD
33h 45m2 stops
$1,591Air New Zealand
Mon, 9 Feb - Mon, 16 Feb
American Airlines Logo
12:00 - 23:59
MEL
-
STL
28h 59m1 stop
American Airlines Logo
09:34 - 05:00
STL
-
MEL
26h 26m1 stop
$2,566American Airlines
Fri, 6 Feb - Mon, 9 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 29 December 2025.
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

Sun 25/1

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Sun 1/2

16:05-08:45

2 stops48h 40m

$1,189

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Mon 9/2

16:15-08:45

2 stops24h 30m

$1,244

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Mon 9/2

16:15-08:45

2 stops24h 30m

$1,246

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

11:40-20:58

2 stops25h 18m

Lambert-St Louis

Mon 9/2

17:00-07:30

1 stop22h 30m

$1,271

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

11:40-15:37

1 stop19h 57m

Lambert-St Louis

Mon 9/2

17:00-07:30

1 stop22h 30m

$1,272

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Thu 5/2

09:40-14:47

1 stop21h 07m

Lambert-St Louis

Mon 9/2

11:55-06:30

1 stop26h 35m

$1,421

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 25/1

09:40-14:47

1 stop21h 07m

Lambert-St Louis

Sun 1/2

17:20-06:30

1 stop21h 10m

$1,582

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 25/1

12:10-19:29

2 stops23h 19m

Lambert-St Louis

Sun 1/2

15:37-06:30

1 stop22h 53m

$1,583

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 9/2

11:45-22:00

2 stops27h 15m

Lambert-St Louis

Mon 16/2

06:00-08:45

2 stops33h 45m

$1,591

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 6/2

12:00-23:59

1 stop28h 59m

Lambert-St Louis

Mon 9/2

09:34-05:00

1 stop26h 26m

$2,566

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,679. If you aren’t able to travel to St. Louis during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,774.

What is the cheapest day to depart on your flight to St. Louis?

According to our data, Saturday is the cheapest day to fly to St. Louis from Australia. The lowest ticket price found for a Saturday departure recently was $2,079. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Australia to St. Louis on a Thursday will generally be more expensive and average around $2,663. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 SYDNEYAugust18% cheaperFlying from Sydney to St. Louis costs on average just $1,679 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYMay20% more expensiveIt costs about $2,448 for flights to St. Louis from Sydney in May
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly459% 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

$869

Best Round-Trip Price

$1,189

Fastest flight time

30h 29m

Popular in

July
The best one-way flight price to St. Louis from Australia in the last 72 hours is $869 (Sydney Kingsford Smith to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Australia in the last 72 hours is $1,189 (Brisbane to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 30h 29m (Melbourne to Lambert-St Louis).
Search Deals
July has the highest demand for flights to St. Louis, with a 4% 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 December 2025, 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 $1,069
Brisbane to Lambert-St Louis Flightsfrom $836
Melbourne to Lambert-St Louis Flightsfrom $1,452
Devonport to Lambert-St Louis Flightsfrom $2,080