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Look for other cheap flights to Lambert-St Louis

$789 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 2/6. 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.
United Airlines Logo
10:30 - 21:07
MEL
-
STL
26h 37m
2 stops
United Airlines Logo
08:17 - 09:00
STL
-
MEL
32h 43m
2 stops
$1,269United Airlines
Wed, 18 Mar - Sun, 22 Mar
United Airlines Logo
10:30 - 21:07
MEL
-
STL
26h 37m
2 stops
United Airlines Logo
06:51 - 09:00
STL
-
MEL
34h 09m
1 stop
$1,275United Airlines
Wed, 18 Mar - Sun, 22 Mar
United Airlines Logo
10:55 - 20:43
MEL
-
STL
24h 48m
2 stops
United Airlines Logo
19:23 - 08:15
STL
-
MEL
21h 52m
1 stop
$1,276United Airlines
Fri, 1 May - Tue, 2 Jun
United Airlines Logo
12:00 - 21:07
MEL
-
STL
25h 07m
2 stops
United Airlines Logo
18:05 - 08:30
STL
-
MEL
46h 25m
2 stops
$1,344United Airlines
Wed, 25 Mar - Sun, 29 Mar
American Airlines Logo
16:05 - 22:58
MEL
-
STL
22h 53m
1 stop
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
$1,363American Airlines
Wed, 18 Mar - Sun, 22 Mar
American Airlines Logo
16:05 - 23:59
MEL
-
STL
23h 54m
2 stops
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
$1,364American Airlines
Wed, 18 Mar - Sun, 22 Mar
Qantas Airways Logo
16:25 - 23:58
MEL
-
STL
23h 33m
2 stops
Qantas Airways Logo
16:13 - 05:00
STL
-
MEL
21h 47m
1 stop
$1,407Qantas Airways
Sat, 28 Mar - Sat, 4 Apr
Qantas Airways Logo
09:10 - 23:57
SYD
-
STL
29h 47m
1 stop
Qantas Airways Logo
06:21 - 07:05
STL
-
SYD
33h 44m
1 stop
$1,461Qantas Airways
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
10:30 - 23:11
BNE
-
STL
27h 41m
2 stops
Multiple Airlines Logo
11:15 - 06:30
STL
-
BNE
28h 15m
2 stops
$1,556Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
20:50 - 20:04
MEL
-
STL
38h 14m
3 stops
Multiple Airlines Logo
14:20 - 11:25
STL
-
MEL
30h 05m
3 stops
$1,689Multiple Airlines
Mon, 4 May - Tue, 2 Jun

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 4 March 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 18/3

10:30-21:07

2 stops26h 37m

Lambert-St Louis

Sun 22/3

08:17-09:00

2 stops32h 43m

$1,269

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 18/3

10:30-21:07

2 stops26h 37m

Lambert-St Louis

Sun 22/3

06:51-09:00

1 stop34h 09m

$1,275

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 1/5

10:55-20:43

2 stops24h 48m

Lambert-St Louis

Tue 2/6

19:23-08:15

1 stop21h 52m

$1,276

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 25/3

12:00-21:07

2 stops25h 07m

Lambert-St Louis

Sun 29/3

18:05-08:30

2 stops46h 25m

$1,344

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 18/3

16:05-22:58

1 stop22h 53m

Lambert-St Louis

Sun 22/3

06:38-09:30

1 stop34h 52m

$1,363

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 18/3

16:05-23:59

2 stops23h 54m

Lambert-St Louis

Sun 22/3

06:38-09:30

1 stop34h 52m

$1,364

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sat 28/3

16:25-23:58

2 stops23h 33m

Lambert-St Louis

Sat 4/4

16:13-05:00

1 stop21h 47m

$1,407

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 14/4

09:10-23:57

1 stop29h 47m

Lambert-St Louis

Tue 21/4

06:21-07:05

1 stop33h 44m

$1,461

BrisbaneSt. Louis

BNE - STL

BNESTL

Brisbane

Wed 15/4

10:30-23:11

2 stops27h 41m

Lambert-St Louis

Wed 22/4

11:15-06:30

2 stops28h 15m

$1,556

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Mon 4/5

20:50-20:04

3 stops38h 14m

Lambert-St Louis

Tue 2/6

14:20-11:25

3 stops30h 05m

$1,689

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 $1,601. 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 $1,684.

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 SYDNEYAugust16% cheaperFlying from Sydney to St. Louis costs on average just $1,601 in August
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM SYDNEYJuly31% more expensiveIt costs about $2,470 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

$789

Best Round-Trip Price

$1,269

Fastest flight time

22h 22m

Popular in

July
The best one-way flight price to St. Louis from Australia in the last 72 hours is $789 (Melbourne to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Australia in the last 72 hours is $1,269 (Melbourne to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Australia takes 22h 22m (Melbourne 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 March 2026, there are 3 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
Chesterfield
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 $899
Sydney Kingsford Smith to Lambert-St Louis Flightsfrom $1,083
Brisbane to Lambert-St Louis Flightsfrom $1,735
Devonport to Lambert-St Louis Flightsfrom $1,363