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Look for other cheap flights to Lambert-St Louis

$769 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 20/12. 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
14:45 - 08:45
STL
-
BNE
26h 00m2 stops
$1,247Air Canada
Wed, 18 Feb - Sun, 22 Feb
American Airlines Logo
19:40 - 23:48
BNE
-
STL
20h 08m1 stop
American Airlines Logo
09:32 - 05:00
STL
-
BNE
27h 28m2 stops
$1,257American Airlines
Wed, 18 Feb - Sun, 22 Feb
American Airlines Logo
19:40 - 23:48
BNE
-
STL
20h 08m1 stop
American Airlines Logo
15:31 - 06:30
STL
-
BNE
22h 59m1 stop
$1,259American Airlines
Wed, 18 Feb - Sun, 22 Feb
Multiple Airlines Logo
06:20 - 14:41
SYD
-
STL
25h 21m2 stops
Multiple Airlines Logo
17:04 - 22:15
STL
-
SYD
36h 11m2 stops
$1,662Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Air Canada Logo
16:00 - 15:29
SYD
-
STL
40h 29m2 stops
Air Canada Logo
16:30 - 09:35
STL
-
SYD
48h 05m2 stops
$1,696Air Canada
Thu, 15 Jan - Tue, 17 Feb
Air Canada Logo
11:20 - 15:29
SYD
-
STL
45h 09m2 stops
Air Canada Logo
14:45 - 09:35
STL
-
SYD
25h 50m2 stops
$1,761Air Canada
Fri, 16 Jan - Mon, 16 Feb
United Airlines Logo
11:20 - 20:58
SYD
-
STL
26h 38m2 stops
United Airlines Logo
16:39 - 07:00
STL
-
SYD
21h 21m1 stop
$1,776United Airlines
Thu, 15 Jan - Wed, 18 Feb
Qantas Airways Logo
07:05 - 16:14
SYD
-
STL
26h 09m2 stops
Qantas Airways Logo
18:50 - 22:25
STL
-
SYD
34h 35m2 stops
$1,796Qantas Airways
Sat, 17 Jan - Thu, 19 Feb
Qantas Airways Logo
21:55 - 14:47
SYD
-
STL
33h 52m2 stops
Qantas Airways Logo
18:50 - 13:55
STL
-
SYD
26h 05m2 stops
$1,799Qantas Airways
Wed, 14 Jan - Mon, 16 Feb
United Airlines Logo
11:50 - 22:00
SYD
-
STL
27h 10m1 stop
United Airlines Logo
10:10 - 07:00
STL
-
SYD
27h 50m1 stop
$1,850United Airlines
Fri, 16 Jan - Sun, 15 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 11 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

Wed 18/2

10:45-15:29

2 stops44h 44m

Lambert-St Louis

Sun 22/2

14:45-08:45

2 stops26h 00m

$1,247

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Wed 18/2

19:40-23:48

1 stop20h 08m

Lambert-St Louis

Sun 22/2

09:32-05:00

2 stops27h 28m

$1,257

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Wed 18/2

19:40-23:48

1 stop20h 08m

Lambert-St Louis

Sun 22/2

15:31-06:30

1 stop22h 59m

$1,259

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 24/1

06:20-14:41

2 stops25h 21m

Lambert-St Louis

Sat 31/1

17:04-22:15

2 stops36h 11m

$1,662

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 15/1

16:00-15:29

2 stops40h 29m

Lambert-St Louis

Tue 17/2

16:30-09:35

2 stops48h 05m

$1,696

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 16/1

11:20-15:29

2 stops45h 09m

Lambert-St Louis

Mon 16/2

14:45-09:35

2 stops25h 50m

$1,761

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 15/1

11:20-20:58

2 stops26h 38m

Lambert-St Louis

Wed 18/2

16:39-07:00

1 stop21h 21m

$1,776

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 17/1

07:05-16:14

2 stops26h 09m

Lambert-St Louis

Thu 19/2

18:50-22:25

2 stops34h 35m

$1,796

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 14/1

21:55-14:47

2 stops33h 52m

Lambert-St Louis

Mon 16/2

18:50-13:55

2 stops26h 05m

$1,799

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 16/1

11:50-22:00

1 stop27h 10m

Lambert-St Louis

Sun 15/2

10:10-07:00

1 stop27h 50m

$1,850

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 $1,696. 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 $1,793.

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 $2,101. 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 $2,691. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to St. Louis from Australia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $2,152 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $3,124 per ticket.

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 $1,696 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYMay20% more expensiveIt costs about $2,474 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

$769

Best Round-Trip Price

$1,247

Fastest flight time

28h 25m

Popular in

July
The best one-way flight price to St. Louis from Australia in the last 72 hours is $769 (Brisbane to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Australia in the last 72 hours is $1,247 (Brisbane to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 28h 25m (Melbourne to Lambert-St Louis).
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July has the highest demand for flights to St. Louis, with a 4% price increase on average.
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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
Melbourne to Lambert-St Louis Flightsfrom $875
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $1,105
Brisbane to Lambert-St Louis Flightsfrom $839
Devonport to Lambert-St Louis Flightsfrom $2,056