South Pacific

$576+ Cheap flights from St. Louis (STL) to South Pacific

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Mar 23 — Mar 301
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to South Pacific with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to South Pacific

Keep the following information in mind while searching for St. Louis to South Pacific flight deals. Data was last updated March 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,049
(United)

One-way from

$576
(oojo)

Popular in

December

Cheapest in

November

Average price

$1,454
Provider with most accurate pricing for Lambert-St Louis-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Sydney Kingsford Smith flights.
From Lambert-St Louis to South Pacific
One-way flight from Lambert-St Louis to South Pacific
Highest demand for flights based on searches. 7% potential increase in price ($120 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($29 potential savings vs. average RT price).
Average for round-trip flights in March 2025

Find flight deals from St. Louis to South Pacific

Cheapest flights from St. Louis to South Pacific
Explore the most affordable flight options available from St. Louis to South Pacific. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2025.

This United deal was found by Cheapflights users on 3/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/285:33 pmSTL - BNE
2 stops45h 57mUnited Airlines
Mon 4/1410:30 amBNE - STL
2 stops44h 17mUnited Airlines
Deal found 3/18$1,049
This FlightHub deal was found by Cheapflights users on 3/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/255:37 pmSTL - AKL
2 stops25h 03mFiji Airways
Tue 4/88:00 amAKL - STL
2 stops31h 28mFiji Airways
Deal found 3/18$1,085
This United Airlines deal was found by Cheapflights users on 3/17. 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 3/207:00 amSTL - PPT
1 stop17h 00mUnited Airlines
Thu 4/39:10 pmPPT - STL
1 stop14h 42mUnited Airlines
Deal found 3/17$1,119
This Air France deal was found by Cheapflights users on 3/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:45 pmSTL - PPT
2 stops30h 10mAir France
Mon 3/248:50 amPPT - STL
2 stops26h 58mAir France
Deal found 3/16$1,130
This flugladen.de deal was found by Cheapflights users on 3/17. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:38 pmSTL - PPT
3 stops39h 42mMultiple Airlines
Thu 4/37:00 amPPT - STL
3 stops45h 06mMultiple Airlines
Deal found 3/17$1,138
This Fiji Airways deal was found by Cheapflights users on 3/17. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:29 pmSTL - SYD
2 stops27h 46mMultiple Airlines
Thu 7/241:15 pmSYD - STL
2 stops22h 44mMultiple Airlines
Deal found 3/17$1,151
This Fiji Airways deal was found by Cheapflights users on 3/17. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:11 pmSTL - SYD
2 stops25h 34mFiji Airways
Tue 5/201:15 pmSYD - STL
2 stops24h 31mFiji Airways
Deal found 3/17$1,153
This Fiji Airways deal was found by Cheapflights users on 3/17. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:29 pmSTL - MEL
2 stops27h 46mMultiple Airlines
Thu 7/2412:55 pmMEL - STL
2 stops23h 04mMultiple Airlines
Deal found 3/17$1,195
This oojo deal was found by Cheapflights users on 3/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/224:29 pmSTL - AKL
1 stop19h 26mAir New Zealand
Mon 3/242:50 pmAKL - STL
1 stop21h 03mAir New Zealand
Deal found 3/18$1,205
This Justfly.com deal was found by Cheapflights users on 3/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:52 amSTL - AKL
2 stops42h 08mQantas Airways
Tue 6/246:00 amAKL - STL
2 stops33h 59mQantas Airways
Deal found 3/17$1,211
This Air Canada deal was found by Cheapflights users on 3/17. 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.
Sat 11/224:15 pmSTL - BNE
2 stops48h 25mAir Canada
Fri 12/2610:45 amBNE - STL
2 stops44h 41mAir Canada
Deal found 3/17$1,213
This Gurufare deal was found by Cheapflights users on 3/17. 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.
Tue 6/247:46 pmSTL - BNE
2 stops23h 39mFiji Airways
Thu 7/2411:40 amBNE - STL
2 stops24h 19mFiji Airways
Deal found 3/17$1,218

Find flights from St. Louis to South Pacific within your budget

Customize your flight search to find flights from St. Louis to South Pacific 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 March 18, 2025.

Fly from

St. Louis

Fly to

South Pacific

Route

Depart

Return

Price

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 3/28

5:33 pm-6:30 am

2 stops45h 57m

Brisbane

Mon 4/14

10:30 am-3:47 pm

2 stops44h 17m

$1,049

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 8/12

6:10 pm-10:45 pm

2 stops35h 35m

Auckland Intl

Thu 8/21

7:00 am-10:30 pm

2 stops32h 30m

$1,102

St. LouisPapeete

STL - PPT

STLPPT

Lambert-St Louis

Wed 5/28

3:40 pm-4:35 pm

2 stops29h 55m

Papeete Faaa

Wed 6/4

7:40 am-6:01 pm

2 stops29h 21m

$1,133

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Thu 6/26

5:29 pm-12:15 pm

2 stops27h 46m

Sydney Kingsford Smith

Thu 7/24

1:15 pm-8:59 pm

2 stops22h 44m

$1,151

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 5/6

7:11 pm-11:45 am

2 stops25h 34m

Sydney Kingsford Smith

Tue 5/20

1:15 pm-10:46 pm

2 stops24h 31m

$1,153

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 6/26

5:29 pm-12:15 pm

2 stops27h 46m

Melbourne

Thu 7/24

12:55 pm-8:59 pm

2 stops23h 04m

$1,195

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 5/20

6:52 am-6:00 pm

2 stops42h 08m

Auckland Intl

Tue 6/24

6:00 am-10:59 pm

2 stops33h 59m

$1,211

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 6/24

7:46 pm-10:25 am

2 stops23h 39m

Brisbane

Thu 7/24

11:40 am-8:59 pm

2 stops24h 19m

$1,218

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 6/26

12:28 pm-10:35 am

2 stops31h 07m

Brisbane

Thu 7/24

11:40 am-8:59 pm

2 stops24h 19m

$1,237

St. LouisChristchurch

STL - CHC

STLCHC

Lambert-St Louis

Thu 5/1

6:15 am-11:59 pm

2 stops48h 44m

Christchurch

Sat 5/10

6:00 am-11:04 pm

2 stops34h 04m

$1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 45 results
1
2
3
...
5

Best time to book a flight from St. Louis to South Pacific

Have a flexible travel schedule? Discover the best time to fly to South Pacific from St. Louis 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.

Travel insights for flights from St. Louis to South Pacific

Get recent, data-driven insights about flights from St. Louis to South Pacific including ideal travel times, pricing trends, and more.

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

Currently, March is the cheapest month in which you can book a flight from St. Louis to South Pacific (average of $1,043). Flying from St. Louis to South Pacific in December is currently the most expensive (average of $1,643). 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 STL to SP?

Find hourly flight availability from St. Louis to South Pacific. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 18, 2025.

When flying from St. Louis to South Pacific, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in South Pacific by month

Plan your trip to South Pacific by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Pacific ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit South Pacific when rainfall is around 2.0 in.

Temperature in South Pacific by month

Plan your trip to South Pacific by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Pacific, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing South Pacific

Get insights into the airlines that provide service to South Pacific. 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 South Pacific. Reviews last updated March 18, 2025.

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
8.0
Very good

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Comfort

8.0

Entertainment

7.5

Crew

8.5

Food

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to South Pacific. 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 from for flights from St. Louis to South Pacific?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to South Pacific.

  • What are the cheapest airlines to fly from St. Louis to South Pacific one-way?

    To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $624. Air Canada flights start at $826 while deals on United Airlines start at $835 one-way.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to South Pacific 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 St. Louis to South Pacific?

    Currently, March is the cheapest month in which you can book a flight from St. Louis to South Pacific (average of $1,043). Flying from St. Louis to South Pacific in December is currently the most expensive (average of $1,643). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to South Pacific

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from St. Louis to South Pacific

Discover the top 7 airlines that operate flights from St. Louis to South Pacific. 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 March 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$651Average$1,061FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$687Average$1,803FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$742Average$1,551FlexibilityNo cancel feeOn-time71%
Fiji AirwaysCheapest$777Average$992FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$820Average$1,713FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,339FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,091Average$1,698FlexibilityNo cancel feeOn-time78%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.