What is the cheapest airline that flies from South Pacific to Lambert-St Louis?

American Airlines is the most popular carrier operating from South Pacific to Lambert-St Louis

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?

The number of operators available for flights from South Pacific to Lambert-St Louis Airport is 2 as of December 2025.

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.

$577 Cheap Flights from South Pacific to St. Louis in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from South Pacific to St. Louis

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 am - 8:59 pm

MEL

STL

26h 29m2 stops

4:30 pm - 8:15 am

STL

MEL

24h 45m2 stops

$873United Airlines

Wed, May 27 - Sat, Jun 6

11:20 am - 3:15 pm

SYD

STL

44h 55m2 stops

4:15 pm - 9:35 am

STL

SYD

24h 20m2 stops

$1,060Multiple Airlines

Tue, Feb 3 - Tue, Feb 10

6:05 am - 11:59 pm

CHC

STL

36h 54m2 stops

6:50 pm - 11:55 pm

STL

CHC

58h 05m2 stops

$1,105American Airlines

Wed, Feb 11 - Sun, Feb 15

11:20 am - 3:29 pm

SYD

STL

45h 09m2 stops

4:15 pm - 9:35 am

STL

SYD

24h 20m2 stops

$1,144Air Canada

Mon, Feb 2 - Mon, Feb 9

10:20 am - 8:54 pm

SYD

STL

26h 34m2 stops

4:05 pm - 7:20 am

STL

SYD

48h 15m2 stops

$1,150Air Canada

Wed, Apr 1 - Mon, Apr 6

6:05 am - 11:48 pm

WLG

STL

36h 43m2 stops

5:14 am - 2:50 pm

STL

WLG

38h 36m2 stops

$1,199American Airlines

Wed, Feb 18 - Sat, Feb 21

6:30 pm - 3:01 pm

MEL

STL

37h 31m2 stops

6:50 pm - 1:35 pm

STL

MEL

25h 45m2 stops

$1,310Qantas Airways

Wed, Feb 18 - Sun, Feb 22

5:45 pm - 3:01 pm

MEL

STL

38h 16m2 stops

6:50 pm - 12:25 pm

STL

MEL

24h 35m2 stops

$1,311Qantas Airways

Wed, Feb 18 - Sun, Feb 22

2:15 pm - 3:37 pm

CHC

STL

20h 22m1 stop

6:45 am - 12:25 pm

STL

CHC

34h 40m2 stops

$1,345Air New Zealand

Sun, Jan 18 - Sun, Jan 25

5:00 pm - 10:00 pm

CHC

STL

24h 00m2 stops

6:45 am - 12:25 pm

STL

CHC

34h 40m2 stops

$1,398Air New Zealand

Sun, Jan 18 - Sun, Jan 25

United Airlines flights from South Pacific to St. Louis

Our best United Airlines deals on South Pacific to St. Louis flight tickets

United Airlines

May 27

MEL10:55 amMelbourne

21h 58m

1 stop

STL5:53 pmLambert-St Louis

Jun 6

STL7:06 pmLambert-St Louis

22h 09m

1 stop

MEL8:15 amMelbourne

$873

Find similar

United Airlines

Apr 4

MEL11:55 amMelbourne

37h 30m

2 stops

STL9:25 amLambert-St Louis

Apr 15

STL1:10 pmLambert-St Louis

27h 20m

2 stops

MEL7:30 amMelbourne

$1,267

Find similar

United Airlines

Jan 20

CHC2:15 pmChristchurch

25h 43m

2 stops

STL8:58 pmLambert-St Louis

Jan 24

STL4:49 pmLambert-St Louis

46h 46m

2 stops

CHC10:35 amChristchurch

$1,410

Find similar

American Airlines flights from South Pacific to St. Louis

Our best American Airlines deals on South Pacific to St. Louis flight tickets

American Airlines

Feb 11

CHC6:05 amChristchurch

36h 54m

2 stops

STL11:59 pmLambert-St Louis

Feb 15

STL6:50 pmLambert-St Louis

58h 05m

2 stops

CHC11:55 pmChristchurch

$1,105

Find similar

American Airlines

Feb 18

WLG6:05 amWellington

36h 43m

2 stops

STL11:48 pmLambert-St Louis

Feb 21

STL5:14 amLambert-St Louis

38h 36m

2 stops

WLG2:50 pmWellington

$1,199

Find similar

American Airlines

Feb 18

WLG6:05 amWellington

36h 43m

2 stops

STL11:48 pmLambert-St Louis

Feb 21

STL7:05 amLambert-St Louis

36h 45m

2 stops

WLG2:50 pmWellington

$1,201

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 5/27

9:30 am-8:59 pm

2 stops26h 29m

Lambert-St Louis

Sat 6/6

4:30 pm-8:15 am

2 stops24h 45m

$873

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Tue 2/3

11:20 am-3:15 pm

2 stops44h 55m

Lambert-St Louis

Tue 2/10

4:15 pm-9:35 am

2 stops24h 20m

$1,060

ChristchurchSt. Louis

CHC - STL

CHCSTL

Christchurch

Wed 2/11

6:05 am-11:59 pm

2 stops36h 54m

Lambert-St Louis

Sun 2/15

6:50 pm-11:55 pm

2 stops58h 05m

$1,105

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 2/2

11:20 am-3:29 pm

2 stops45h 09m

Lambert-St Louis

Mon 2/9

4:15 pm-9:35 am

2 stops24h 20m

$1,144

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 4/1

10:20 am-8:54 pm

2 stops26h 34m

Lambert-St Louis

Mon 4/6

4:05 pm-7:20 am

2 stops48h 15m

$1,150

WellingtonSt. Louis

WLG - STL

WLGSTL

Wellington

Wed 2/18

6:05 am-11:48 pm

2 stops36h 43m

Lambert-St Louis

Sat 2/21

5:14 am-2:50 pm

2 stops38h 36m

$1,199

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 2/18

6:30 pm-3:01 pm

2 stops37h 31m

Lambert-St Louis

Sun 2/22

6:50 pm-1:35 pm

2 stops25h 45m

$1,310

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 2/18

5:45 pm-3:01 pm

2 stops38h 16m

Lambert-St Louis

Sun 2/22

6:50 pm-12:25 pm

2 stops24h 35m

$1,311

ChristchurchSt. Louis

CHC - STL

CHCSTL

Christchurch

Sun 1/18

2:15 pm-3:37 pm

1 stop20h 22m

Lambert-St Louis

Sun 1/25

6:45 am-12:25 pm

2 stops34h 40m

$1,345

ChristchurchSt. Louis

CHC - STL

CHCSTL

Christchurch

Sun 1/18

5:00 pm-10:00 pm

2 stops24h 00m

Lambert-St Louis

Sun 1/25

6:45 am-12:25 pm

2 stops34h 40m

$1,398

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

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

Prices

Airlines

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 $1,128. The month of November is another great option to travel to St. Louis, with average flight prices from South Pacific averaging around $1,192.

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

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $1,050. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,861. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

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

Flying to St. Louis from South Pacific in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,352 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,824 per ticket.

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

You could potentially save up to 6% 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	21h 37m
Direct flights	None

The fastest flight from South Pacific to St. Louis takes 21h 37m

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?
The number of operators available for flights from South Pacific to Lambert-St Louis Airport is 2 as of December 2025.
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 Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,100 reviews		Search United Airlines flights
Qantas Airways	PriceFrom $1,110	Free Cancellation	Rating 7.5 948 reviews		Search Qantas Airways flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

O'Fallon

Florissant

Fenton

St. Peters

Wentzville

Collinsville

Alton

Farmington

Clayton

Festus

Glencoe

Eureka

Edwardsville

Litchfield

Shrewsbury

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.