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Cheap flights from South Pacific to St. Louis from $892

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South Pacific to St. Louis departing on 3/18. 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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0 bags

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Find the cheapest flights from South Pacific to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:30 am - 6:00 pm
MEL
-
STL
23h 30m
2 stops
United Airlines Logo
2:50 pm - 8:30 am
STL
-
MEL
25h 40m
2 stops
$892United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
12:00 pm - 11:34 pm
MEL
-
STL
27h 34m
2 stops
United Airlines Logo
8:17 am - 9:00 am
STL
-
MEL
32h 43m
2 stops
$893United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
10:30 am - 4:49 pm
MEL
-
STL
22h 19m
2 stops
United Airlines Logo
6:51 am - 9:00 am
STL
-
MEL
34h 09m
1 stop
$896United Airlines
Wed, Mar 18 - Sun, Mar 22
American Airlines Logo
4:05 pm - 7:29 pm
MEL
-
STL
19h 24m
1 stop
American Airlines Logo
6:38 am - 9:30 am
STL
-
MEL
34h 52m
1 stop
$953American Airlines
Wed, Mar 18 - Sun, Mar 22
American Airlines Logo
4:05 pm - 7:29 pm
MEL
-
STL
19h 24m
1 stop
American Airlines Logo
6:38 am - 9:30 am
STL
-
MEL
34h 52m
1 stop
$955American Airlines
Wed, Mar 18 - Sun, Mar 22
Qantas Airways Logo
12:00 pm - 4:51 pm
SYD
-
STL
19h 51m
1 stop
Qantas Airways Logo
7:46 pm - 6:55 am
STL
-
SYD
20h 09m
1 stop
$1,063Qantas Airways
Thu, Aug 6 - Sun, Aug 30
Multiple Airlines Logo
1:30 pm - 11:57 pm
MEL
-
STL
25h 27m
2 stops
Multiple Airlines Logo
6:21 am - 10:35 pm
STL
-
MEL
49h 14m
2 stops
$1,154Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Qantas Airways Logo
6:30 am - 7:29 pm
DPO
-
STL
28h 59m
2 stops
Qantas Airways Logo
4:13 pm - 4:35 pm
STL
-
DPO
32h 22m
2 stops
$1,356Qantas Airways
Fri, Mar 13 - Mon, Mar 16
Air Canada Logo
3:55 pm - 3:29 pm
WLG
-
STL
65h 34m
3 stops
Air Canada Logo
4:05 pm - 12:05 am
STL
-
WLG
62h 00m
3 stops
$1,975Air Canada
Thu, Mar 19 - Mon, Mar 23
Air Canada Logo
3:55 pm - 3:29 pm
WLG
-
STL
65h 34m
3 stops
Air Canada Logo
4:05 pm - 12:05 am
STL
-
WLG
62h 00m
3 stops
$2,188Air Canada
Thu, Mar 19 - Mon, Mar 23

United Airlines flights from South Pacific to St. Louis

Our best United Airlines deals on South Pacific to St. Louis flight tickets
United Airlines
Mar 18
MEL10:30 amMelbourne
23h 30m
2 stops
STL6:00 pmLambert-St Louis
Mar 22
STL2:50 pmLambert-St Louis
25h 40m
2 stops
MEL8:30 amMelbourne
$892
United Airlines
Mar 18
MEL12:00 pmMelbourne
27h 34m
2 stops
STL11:34 pmLambert-St Louis
Mar 22
STL8:17 amLambert-St Louis
32h 43m
2 stops
MEL9:00 amMelbourne
$893
United Airlines
Mar 18
MEL10:30 amMelbourne
22h 19m
2 stops
STL4:49 pmLambert-St Louis
Mar 22
STL6:51 amLambert-St Louis
34h 09m
1 stop
MEL9:00 amMelbourne
$896

American Airlines flights from South Pacific to St. Louis

Our best American Airlines deals on South Pacific to St. Louis flight tickets
American Airlines
Mar 18
MEL4:05 pmMelbourne
19h 24m
1 stop
STL7:29 pmLambert-St Louis
Mar 22
STL6:38 amLambert-St Louis
34h 52m
1 stop
MEL9:30 amMelbourne
$953
American Airlines
Mar 18
MEL4:05 pmMelbourne
19h 24m
1 stop
STL7:29 pmLambert-St Louis
Mar 22
STL6:38 amLambert-St Louis
34h 52m
1 stop
MEL9:30 amMelbourne
$955
American Airlines
Mar 18
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
Mar 22
STL6:38 amLambert-St Louis
34h 52m
1 stop
MEL9:30 amMelbourne
$958

momondo Fare Finder

 
Customize your flight search to find flights from South Pacific to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 26, 2026.
Use the filters below to find and compare flights from South Pacific to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 3/18

10:30 am-6:00 pm

2 stops23h 30m

Lambert-St Louis

Sun 3/22

2:50 pm-8:30 am

2 stops25h 40m

$892

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 3/18

12:00 pm-11:34 pm

2 stops27h 34m

Lambert-St Louis

Sun 3/22

8:17 am-9:00 am

2 stops32h 43m

$893

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 3/18

10:30 am-4:49 pm

2 stops22h 19m

Lambert-St Louis

Sun 3/22

6:51 am-9:00 am

1 stop34h 09m

$896

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 3/18

4:05 pm-7:29 pm

1 stop19h 24m

Lambert-St Louis

Sun 3/22

6:38 am-9:30 am

1 stop34h 52m

$953

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 3/18

4:05 pm-7:29 pm

1 stop19h 24m

Lambert-St Louis

Sun 3/22

6:38 am-9:30 am

1 stop34h 52m

$955

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 8/6

12:00 pm-4:51 pm

1 stop19h 51m

Lambert-St Louis

Sun 8/30

7:46 pm-6:55 am

1 stop20h 09m

$1,063

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 4/10

1:30 pm-11:57 pm

2 stops25h 27m

Lambert-St Louis

Fri 4/17

6:21 am-10:35 pm

2 stops49h 14m

$1,154

DevonportSt. Louis

DPO - STL

DPOSTL

Devonport

Fri 3/13

6:30 am-7:29 pm

2 stops28h 59m

Lambert-St Louis

Mon 3/16

4:13 pm-4:35 pm

2 stops32h 22m

$1,356

WellingtonSt. Louis

WLG - STL

WLGSTL

Wellington

Thu 3/19

3:55 pm-3:29 pm

3 stops65h 34m

Lambert-St Louis

Mon 3/23

4:05 pm-12:05 am

3 stops62h 00m

$1,975

WellingtonSt. Louis

WLG - STL

WLGSTL

Wellington

Thu 3/19

3:55 pm-3:29 pm

3 stops65h 34m

Lambert-St Louis

Mon 3/23

4:05 pm-12:05 am

3 stops62h 00m

$2,188

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from South Pacific to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from South Pacific to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,153. The month of April is another great option to travel to St. Louis, with average flight prices from South Pacific averaging around $1,186.

Can stopping save me money on South Pacific to St. Louis flights?

You could potentially save up to 11% on your flight if you consider stops on a South Pacific to St. Louis flight.

Cheap South Pacific to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Pacific to St. Louis

Fastest flight time

19h 51m

Direct flights

None
The fastest flight from South Pacific to St. Louis takes 19h 51m
There are no direct flights from South Pacific to St. Louis. There are no popular flight routes from South Pacific to St. Louis.
Search flight deals

  • When did momondo last update prices for flights from South Pacific to Lambert-St Louis Airport?

    Prices for flights from South Pacific to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from South Pacific to Lambert-St Louis Airport?

  • How old do you have to be to fly from South Pacific 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 layovers. It is recommended that you verify with the airline you are booking with for travel from South Pacific 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 license 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.

Best airlines flying from South Pacific to St. Louis

Compare and see reviews for airlines that fly from South Pacific to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $822Free CancellationRating
7.4
9,348 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
St. Peters
Wentzville
Collinsville
Fenton
Alton
Farmington
Clayton
Edwardsville
Festus
Eureka
Litchfield
Glencoe
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from South Pacific to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from South Pacific to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from South Pacific to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from South Pacific which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from South Pacific to St. Louis?

Once all potential South Pacific to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from South Pacific to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from South Pacific and alert you when they change.

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