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Look for other cheap flights to Lambert-St Louis

$909 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 13/5. 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
20:30 - 20:09
MEL
-
STL
38h 39m
3 stops
Air Canada Logo
14:15 - 11:35
STL
-
MEL
30h 20m
3 stops
$1,573Air Canada
Wed, 6 May - Wed, 13 May
American Airlines Logo
09:45 - 23:57
MEL
-
STL
29h 12m
1 stop
American Airlines Logo
12:27 - 05:00
STL
-
MEL
25h 33m
1 stop
$1,596American Airlines
Wed, 6 May - Wed, 13 May
Qantas Airways Logo
13:35 - 18:30
MEL
-
STL
19h 55m
1 stop
Qantas Airways Logo
17:11 - 05:00
STL
-
MEL
20h 49m
1 stop
$1,603Qantas Airways
Sat, 23 May - Sat, 30 May
American Airlines Logo
09:45 - 17:34
MEL
-
STL
22h 49m
2 stops
American Airlines Logo
13:45 - 06:45
STL
-
MEL
26h 00m
2 stops
$1,610American Airlines
Sat, 23 May - Sat, 30 May
United Airlines Logo
10:55 - 22:30
MEL
-
STL
26h 35m
2 stops
United Airlines Logo
16:44 - 07:30
STL
-
MEL
23h 46m
2 stops
$1,612United Airlines
Wed, 6 May - Wed, 13 May
Delta Logo
10:00 - 23:35
MEL
-
STL
28h 35m
2 stops
Delta Logo
10:19 - 07:50
STL
-
MEL
30h 31m
2 stops
$1,622Delta
Wed, 6 May - Wed, 13 May
Multiple Airlines Logo
20:50 - 20:09
MEL
-
STL
38h 19m
3 stops
Multiple Airlines Logo
14:15 - 11:20
STL
-
MEL
30h 05m
3 stops
$1,640Multiple Airlines
Wed, 6 May - Wed, 13 May
Multiple Airlines Logo
07:00 - 19:30
SYD
-
STL
27h 30m
2 stops
Multiple Airlines Logo
06:35 - 07:05
STL
-
SYD
33h 30m
1 stop
$1,877Multiple Airlines
Fri, 15 May - Mon, 8 Jun
United Airlines Logo
10:30 - 18:22
BNE
-
STL
22h 52m
1 stop
United Airlines Logo
10:25 - 06:30
STL
-
BNE
29h 05m
2 stops
$3,053United Airlines
Wed, 6 May - Sun, 10 May
Qantas Airways Logo
06:30 - 23:59
LST
-
STL
32h 29m
2 stops
Qantas Airways Logo
06:21 - 13:05
STL
-
LST
39h 44m
2 stops
$3,349Qantas Airways
Thu, 7 May - Mon, 11 May

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 9 April 2026.
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

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 6/5

20:30-20:09

3 stops38h 39m

Lambert-St Louis

Wed 13/5

14:15-11:35

3 stops30h 20m

$1,573

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 6/5

09:45-23:57

1 stop29h 12m

Lambert-St Louis

Wed 13/5

12:27-05:00

1 stop25h 33m

$1,596
Fastest return journey

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 23/5

13:35-18:30

1 stop19h 55m

Lambert-St Louis

Sat 30/5

17:11-05:00

1 stop20h 49m

$1,603

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 23/5

09:45-17:34

2 stops22h 49m

Lambert-St Louis

Sat 30/5

13:45-06:45

2 stops26h 00m

$1,610

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 6/5

10:55-22:30

2 stops26h 35m

Lambert-St Louis

Wed 13/5

16:44-07:30

2 stops23h 46m

$1,612

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 6/5

10:00-23:35

2 stops28h 35m

Lambert-St Louis

Wed 13/5

10:19-07:50

2 stops30h 31m

$1,622

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 6/5

20:50-20:09

3 stops38h 19m

Lambert-St Louis

Wed 13/5

14:15-11:20

3 stops30h 05m

$1,640

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 15/5

07:00-19:30

2 stops27h 30m

Lambert-St Louis

Mon 8/6

06:35-07:05

1 stop33h 30m

$1,877

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Wed 6/5

10:30-18:22

1 stop22h 52m

Lambert-St Louis

Sun 10/5

10:25-06:30

2 stops29h 05m

$3,053

LauncestonSt. Louis

LST - STL

LSTSTL

Launceston

Thu 7/5

06:30-23:59

2 stops32h 29m

Lambert-St Louis

Mon 11/5

06:21-13:05

2 stops39h 44m

$3,349

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 September is, on average, the cheapest month to fly to St. Louis from Australia, with most prices found around $1,344. If you aren’t able to travel to St. Louis during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,579.

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 SYDNEYSeptember28% cheaperFlying from Sydney to St. Louis costs on average just $1,344 in September
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly26% more expensiveIt costs about $2,337 for flights to St. Louis from Sydney in July
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly900% 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

$909

Best Round-Trip Price

$1,573

Fastest flight time

45h 06m

Popular in

April
The best one-way flight price to St. Louis from Australia in the last 72 hours is $909 (Melbourne to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Australia in the last 72 hours is $1,573 (Melbourne to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 45h 06m (Melbourne to Lambert-St Louis).
Search Deals
April has the highest demand for flights to St. Louis, with a 12% 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 April 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
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

Popular routes according to searches in the past day on momondo
Melbourne to Lambert-St Louis Flightsfrom $1,123
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $1,236
Brisbane to Lambert-St Louis Flightsfrom $1,905
Devonport to Lambert-St Louis Flightsfrom $2,348