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Look for other cheap flights to Lambert-St Louis

$863 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 22/2. 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
08:40 - 19:29
BNE
-
STL
25h 49m
1 stop
American Airlines Logo
11:41 - 05:30
STL
-
BNE
26h 49m
2 stops
$1,105American Airlines
Sun, 15 Mar - Thu, 19 Mar
Air Canada Logo
09:45 - 15:29
BNE
-
STL
44h 44m
2 stops
Air Canada Logo
16:05 - 07:45
STL
-
BNE
24h 40m
2 stops
$1,107Air Canada
Sun, 15 Mar - Thu, 19 Mar
Delta Logo
09:40 - 21:06
SYD
-
STL
27h 26m
2 stops
Delta Logo
07:03 - 07:50
STL
-
SYD
32h 47m
2 stops
$1,297Delta
Mon, 23 Mar - Mon, 30 Mar
Delta Logo
09:15 - 21:14
SYD
-
STL
26h 59m
2 stops
Delta Logo
06:00 - 06:50
STL
-
SYD
33h 50m
2 stops
$1,373Delta
Sat, 6 Jun - Mon, 29 Jun
Multiple Airlines Logo
19:40 - 15:29
BNE
-
STL
58h 49m
3 stops
Multiple Airlines Logo
16:05 - 07:45
STL
-
BNE
24h 40m
2 stops
$1,590Multiple Airlines
Sun, 15 Mar - Thu, 19 Mar
United Airlines Logo
10:30 - 09:25
BNE
-
STL
37h 55m
2 stops
United Airlines Logo
18:49 - 06:30
STL
-
BNE
44h 41m
2 stops
$1,774United Airlines
Tue, 31 Mar - Tue, 5 May
Qantas Airways Logo
16:25 - 15:28
MEL
-
STL
40h 03m
2 stops
Qantas Airways Logo
18:18 - 16:40
STL
-
MEL
29h 22m
2 stops
$1,851Qantas Airways
Fri, 20 Feb - Mon, 23 Feb
Qantas Airways Logo
06:00 - 17:13
MEL
-
STL
28h 13m
2 stops
Qantas Airways Logo
11:46 - 15:40
STL
-
MEL
34h 54m
2 stops
$1,858Qantas Airways
Fri, 20 Feb - Mon, 23 Feb
United Airlines Logo
11:55 - 09:25
MEL
-
STL
37h 30m
2 stops
United Airlines Logo
14:40 - 08:15
STL
-
MEL
26h 35m
2 stops
$1,901United Airlines
Sat, 4 Apr - Wed, 15 Apr
Multiple Airlines Logo
19:40 - 15:29
BNE
-
STL
58h 49m
3 stops
Multiple Airlines Logo
16:05 - 13:25
STL
-
BNE
54h 20m
3 stops
$2,174Multiple Airlines
Sun, 15 Mar - Thu, 19 Mar

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 10 February 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

Sun 15/3

08:40-19:29

1 stop25h 49m

Lambert-St Louis

Thu 19/3

11:41-05:30

2 stops26h 49m

$1,105

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 15/3

09:45-15:29

2 stops44h 44m

Lambert-St Louis

Thu 19/3

16:05-07:45

2 stops24h 40m

$1,107

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 23/3

09:40-21:06

2 stops27h 26m

Lambert-St Louis

Mon 30/3

07:03-07:50

2 stops32h 47m

$1,297

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 6/6

09:15-21:14

2 stops26h 59m

Lambert-St Louis

Mon 29/6

06:00-06:50

2 stops33h 50m

$1,373

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 15/3

19:40-15:29

3 stops58h 49m

Lambert-St Louis

Thu 19/3

16:05-07:45

2 stops24h 40m

$1,590

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Tue 31/3

10:30-09:25

2 stops37h 55m

Lambert-St Louis

Tue 5/5

18:49-06:30

2 stops44h 41m

$1,774

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 20/2

16:25-15:28

2 stops40h 03m

Lambert-St Louis

Mon 23/2

18:18-16:40

2 stops29h 22m

$1,851

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 20/2

06:00-17:13

2 stops28h 13m

Lambert-St Louis

Mon 23/2

11:46-15:40

2 stops34h 54m

$1,858

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 4/4

11:55-09:25

2 stops37h 30m

Lambert-St Louis

Wed 15/4

14:40-08:15

2 stops26h 35m

$1,901

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Sun 15/3

19:40-15:29

3 stops58h 49m

Lambert-St Louis

Thu 19/3

16:05-13:25

3 stops54h 20m

$2,174

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 $1,634. If you aren’t able to travel to St. Louis during the month of August, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,689.

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 SYDNEYAugust14% cheaperFlying from Sydney to St. Louis costs on average just $1,634 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly30% more expensiveIt costs about $2,466 for flights to St. Louis from Sydney in July
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly500% 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

$863

Best Round-Trip Price

$1,105

Fastest flight time

36h 18m

Popular in

July
The best one-way flight price to St. Louis from Australia in the last 72 hours is $863 (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 $1,105 (Brisbane to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 36h 18m (Sydney Kingsford Smith to Lambert-St Louis).
Search Deals
July has the highest demand for flights to St. Louis, with a 1% 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 February 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
Melbourne to Lambert-St Louis Flightsfrom $1,311
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $915
Brisbane to Lambert-St Louis Flightsfrom $785
Devonport to Lambert-St Louis Flightsfrom $1,474