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St. Louis

$585+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from South Pacific to St. Louis

Best flights from South Pacific to St. Louis
Discover carefully curated flight deals from South Pacific to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Trip.com deal was found by Cheapflights users on 12/9. 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.
Sat 1/246:20 amSYD - STL
2 stops25h 21mMultiple Airlines
Sat 1/315:04 pmSTL - SYD
2 stops36h 11mMultiple Airlines
Deal found 12/9$1,105
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 5/710:20 amSYD - STL
1 stop23h 02mUnited Airlines
Mon 5/257:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,183
This Air Canada deal was found by Cheapflights users on 12/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:20 amSYD - STL
2 stops25h 44mAir Canada
Fri 5/291:00 pmSTL - SYD
2 stops51h 20mAir Canada
Deal found 12/10$1,217
This Delta deal was found by Cheapflights users on 12/11. 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.
Sun 5/109:25 amSYD - STL
2 stops23h 35mDelta
Tue 5/262:15 pmSTL - SYD
2 stops25h 20mDelta
Deal found 12/11$1,233
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 2/56:05 amWLG - STL
2 stops36h 54mAmerican Airlines
Mon 2/97:15 amSTL - WLG
2 stops36h 35mAmerican Airlines
Deal found 12/10$1,308
This Qantas Airways deal was found by Cheapflights users on 12/9. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:30 pmLST - STL
2 stops44h 18mQantas Airways
Sun 2/226:30 amSTL - LST
2 stops41h 05mQantas Airways
Deal found 12/9$2,001
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 5/710:20 amSYD - STL
1 stop23h 02mUnited Airlines
Sun 5/247:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,183
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Mon 5/1110:20 amSYD - STL
1 stop23h 02mUnited Airlines
Tue 5/267:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,183
This Air Canada deal was found by Cheapflights users on 12/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/53:55 pmWLG - STL
3 stops66h 34mAir Canada
Mon 2/94:05 pmSTL - WLG
3 stops61h 00mAir Canada
Deal found 12/10$1,490
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 5/1310:20 amSYD - STL
2 stops45h 35mUnited Airlines
Thu 5/287:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,233
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 5/810:20 amSYD - STL
1 stop23h 02mUnited Airlines
Tue 5/267:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,233
This Air Canada deal was found by Cheapflights users on 12/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:10 amCHC - STL
3 stops52h 19mAir Canada
Sun 2/154:05 pmSTL - CHC
3 stops60h 00mAir Canada
Deal found 12/11$1,518
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 5/1010:20 amSYD - STL
1 stop23h 02mUnited Airlines
Tue 5/267:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,233
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 5/710:20 amSYD - STL
2 stops45h 35mUnited Airlines
Fri 5/227:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,233
This Qantas Airways deal was found by Cheapflights users on 12/9. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:30 amDPO - STL
2 stops34h 29mQantas Airways
Sun 2/156:30 amSTL - DPO
2 stops44h 35mQantas Airways
Deal found 12/9$2,056
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 5/910:20 amSYD - STL
1 stop34h 27mUnited Airlines
Tue 5/267:06 pmSTL - SYD
1 stop20h 49mUnited Airlines
Deal found 12/11$1,233
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 2/111:00 pmCHC - STL
2 stops21h 37mUnited Airlines
Sun 2/1511:25 amSTL - CHC
2 stops28h 10mUnited Airlines
Deal found 12/9$1,428
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 2/56:00 amWLG - STL
2 stops42h 11mUnited Airlines
Mon 2/95:00 pmSTL - WLG
2 stops36h 05mUnited Airlines
Deal found 12/9$1,437

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,063
(BYOjet)

One-way from

$585
(Delta)

Popular in

May

Cheapest in

August

Average price

$1,607
Provider with most accurate pricing for Sydney Kingsford Smith-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Lambert-St Louis flights.
Search Deals
From South Pacific to Lambert-St Louis
Search Deals
One-way flight from South Pacific to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sat 1/24

6:20 am-2:41 pm

2 stops25h 21m

Lambert-St Louis

Sat 1/31

5:04 pm-10:15 pm

2 stops36h 11m

$1,105

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 5/7

10:20 am-6:22 pm

1 stop23h 02m

Lambert-St Louis

Mon 5/25

7:06 pm-6:55 am

1 stop20h 49m

$1,183

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 5/7

10:20 am-6:22 pm

1 stop23h 02m

Lambert-St Louis

Sun 5/24

7:06 pm-6:55 am

1 stop20h 49m

$1,183

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 5/11

10:20 am-6:22 pm

1 stop23h 02m

Lambert-St Louis

Tue 5/26

7:06 pm-6:55 am

1 stop20h 49m

$1,183

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 5/1

9:20 am-8:04 pm

2 stops25h 44m

Lambert-St Louis

Fri 5/29

1:00 pm-7:20 am

2 stops51h 20m

$1,217

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 5/10

9:25 am-6:00 pm

2 stops23h 35m

Lambert-St Louis

Tue 5/26

2:15 pm-6:35 am

2 stops25h 20m

$1,233

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 5/13

10:20 am-4:55 pm

2 stops45h 35m

Lambert-St Louis

Thu 5/28

7:06 pm-6:55 am

1 stop20h 49m

$1,233

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Fri 5/8

10:20 am-6:22 pm

1 stop23h 02m

Lambert-St Louis

Tue 5/26

7:06 pm-6:55 am

1 stop20h 49m

$1,233

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Sun 5/10

10:20 am-6:22 pm

1 stop23h 02m

Lambert-St Louis

Tue 5/26

7:06 pm-6:55 am

1 stop20h 49m

$1,233

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Thu 5/7

10:20 am-4:55 pm

2 stops45h 35m

Lambert-St Louis

Fri 5/22

7:06 pm-6:55 am

1 stop20h 49m

$1,233

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 23 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, November is the cheapest month in which you can book a flight from South Pacific to St. Louis (average of $744). Flying from South Pacific to St. Louis in April is currently the most expensive (average of $1,110). 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 December 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from South Pacific to St. Louis by exploring options for tickets in the evening.

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 December 12, 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
947 reviews

Food

7.0

Boarding

7.7

Comfort

7.5

Overall

7.5

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews

Food

7.0

Boarding

7.7

Comfort

7.5

Overall

7.5

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
United Airlines
7.4
Good
9,095 reviews
Qantas Airways
7.5
Good
947 reviews

Food

7.0

Boarding

7.7

Comfort

7.5

Overall

7.5

Entertainment

7.2

Crew

8.1

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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 23h 02m. The distance between South Pacific and St. Louis is about 9054 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 Sydney Kingsford Smith - Lambert-St Louis, Christchurch - Lambert-St Louis and Devonport - 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, November is the cheapest month in which you can book a flight from South Pacific to St. Louis (average of $744). Flying from South Pacific to St. Louis in April is currently the most expensive (average of $1,110). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$822Average$1,431FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,110Average$1,789FlexibilityNo cancel feeOn-time74%

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