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St. Louis

$499+ Cheap flights from South Pacific to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
1 adult, Economy
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Cheap flight deals from South Pacific to St. Louis

Keep the following information in mind while searching for South Pacific to St. Louis flight deals. Data was last updated agosto 20, 2025.

Round-trip from

$823
(United Airlines)

One-way from

$499
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$1,388
From South Pacific to Lambert-St Louis
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One-way flight from South Pacific to Lambert-St Louis
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Highest demand for flights based on searches. 0% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from South Pacific to St. Louis

Cheapest flights from South Pacific to St. Louis
Explore the most affordable flight options available from South Pacific to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This Trip.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/1511:30 amMEL - STL
2 stops26h 27mUnited Airlines
jue. 1/151:27 pmSTL - MEL
2 stops27h 03mUnited Airlines
Deal found 8/20$807
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1411:30 amMEL - STL
2 stops21h 58mUnited Airlines
jue. 11/204:35 pmSTL - MEL
2 stops47h 55mUnited Airlines
Deal found 8/20$823
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/112:00 pmMEL - STL
1 stop20h 27mUnited Airlines
lun. 11/105:29 pmSTL - MEL
1 stop23h 31mUnited Airlines
Deal found 8/18$827
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/131:00 pmMEL - STL
2 stops38h 46mUnited Airlines
jue. 1/13:10 pmSTL - MEL
2 stops25h 50mUnited Airlines
Deal found 8/19$841
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:05 amWLG - STL
2 stops36h 37mAmerican Airlines
mar. 11/189:38 amSTL - WLG
2 stops34h 12mAmerican Airlines
Deal found 8/19$859
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:25 amSYD - STL
2 stops26h 50mDelta
sáb. 9/1310:40 amSTL - SYD
2 stops28h 55mDelta
Deal found 8/19$865
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:10 amSYD - STL
1 stop28h 49mAmerican Airlines
sáb. 9/132:01 pmSTL - SYD
2 stops26h 04mAmerican Airlines
Deal found 8/19$935
This Gotogate deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:00 amMEL - STL
3 stops50h 29mMultiple Airlines
jue. 11/204:05 pmSTL - MEL
3 stops71h 30mMultiple Airlines
Deal found 8/20$1,061
This Booking.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/18:20 pmMEL - STL
3 stops60h 09mMultiple Airlines
lun. 11/104:05 pmSTL - MEL
3 stops56h 15mMultiple Airlines
Deal found 8/18$1,102
This Gurufare deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/136:05 amMEL - STL
2 stops22h 35mMultiple Airlines
jue. 1/16:30 amSTL - MEL
1 stop34h 00mMultiple Airlines
Deal found 8/19$1,246
This Booking.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/29:20 amSYD - STL
2 stops49h 18mAir Canada
vie. 9/54:05 pmSTL - SYD
2 stops48h 15mAir Canada
Deal found 8/18$1,266
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/29:20 amSYD - STL
2 stops25h 18mMultiple Airlines
jue. 10/96:39 amSTL - SYD
1 stop32h 51mMultiple Airlines
Deal found 8/18$1,281

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 20, 2025.
Use the filters below to find and compare flights from South Pacific to St. Louis that are best for you.

Fly from

South Pacific

Fly to

St. Louis

Route

Depart

Return

Price

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

lun. 12/15

11:30 am-8:57 pm

2 stops26h 27m

Lambert-St Louis

jue. 1/15

1:27 pm-9:30 am

2 stops27h 03m

$807

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

vie. 11/14

1:00 pm-4:27 pm

1 stop20h 27m

Lambert-St Louis

jue. 11/20

4:35 pm-9:30 am

2 stops47h 55m

$823

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

sáb. 11/1

12:00 pm-4:27 pm

1 stop20h 27m

Lambert-St Louis

lun. 11/10

1:35 pm-9:30 am

2 stops26h 55m

$827

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

sáb. 12/13

1:00 pm-10:46 am

2 stops38h 46m

Lambert-St Louis

jue. 1/1

3:10 pm-10:00 am

2 stops25h 50m

$841

WellingtonSt. Louis

WLG - STL

WLGSTL

Wellington

vie. 11/14

6:05 am-11:42 pm

2 stops36h 37m

Lambert-St Louis

mar. 11/18

9:38 am-2:50 pm

2 stops34h 12m

$859

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

jue. 9/11

9:25 am-9:15 pm

2 stops26h 50m

Lambert-St Louis

sáb. 9/13

10:40 am-6:35 am

2 stops28h 55m

$865

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

jue. 9/11

9:10 am-10:59 pm

1 stop28h 49m

Lambert-St Louis

sáb. 9/13

2:01 pm-7:05 am

2 stops26h 04m

$935

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

vie. 11/14

6:00 am-3:29 pm

3 stops50h 29m

Lambert-St Louis

jue. 11/20

4:05 pm-8:35 am

3 stops71h 30m

$1,061

ChristchurchSt. Louis

CHC - STL

CHCSTL

Christchurch

dom. 2/15

5:00 pm-7:03 pm

2 stops45h 03m

Lambert-St Louis

mar. 2/17

5:18 pm-10:35 am

2 stops46h 17m

$1,073

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

sáb. 11/1

8:20 pm-4:29 pm

3 stops60h 09m

Lambert-St Louis

lun. 11/10

4:05 pm-5:20 pm

3 stops56h 15m

$1,102

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 41 results
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Best time to book a flight from South Pacific to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Pacific with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Pacific to St. Louis

What is the cheapest month to book a flight from South Pacific to St. Louis?

Currently, August is the cheapest month in which you can book a flight from South Pacific to St. Louis (average of $311). Flying from South Pacific to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SP to STL?

Find hourly flight availability from South Pacific to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Pacific to St. Louis as you normally would.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated agosto 20, 2025.
Read through reviews of airlines operating flights from South Pacific to St. Louis, such as Qantas Airways and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
896 reviews

Crew

8.2

Food

6.9

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
896 reviews
Qantas Airways
7.5
Good
896 reviews

Crew

8.2

Food

6.9

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,928 reviews
Qantas Airways
7.5
Good
896 reviews

Crew

8.2

Food

6.9

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

Find useful and relevant information for your journey from South Pacific to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from South Pacific?

    If you book a flight to St. Louis from South Pacific, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from South Pacific to St. Louis?

    Departing from South Pacific to St. Louis will take you 26h 27m. The distance between South Pacific and St. Louis is about 9479 mi. This flight may include one or multiple stops.

  • What are the most popular routes from South Pacific to St. Louis?

    The most popular flight routes from South Pacific to St. Louis are Melbourne - Lambert-St Louis, Sydney Kingsford Smith - Lambert-St Louis and Christchurch - Lambert-St Louis.

  • Can I find deals for flights from South Pacific to St. Louis that include hotel bookings?

    Yes. In addition to deals on South Pacific to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Pacific to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Pacific to St. Louis.

  • Can I find deals for business class flights from South Pacific to St. Louis?

    Yes. Cheapflights offers flight deals from South Pacific to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Pacific to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from South Pacific to St. Louis (average of $311). Flying from South Pacific to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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Alternative routes for South Pacific to St. Louis

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Top 2 airlines flying from South Pacific to St. Louis

Discover the top 2 airlines that operate flights from South Pacific to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$822Average$1,307FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,110Average$1,789FlexibilityNo cancel feeOn-time74%

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