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South Pacific

$489+ Cheap flights from Illinois 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to South Pacific

Cheapest flights from Illinois to South Pacific
Explore the most affordable flight options available from Illinois to South Pacific. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/35:25 pm
STL
-
AKL
1 stop20h 45m
United Airlines
Tue 3/172:50 pm
AKL
-
STL
1 stop25h 35m
United Airlines
Deal found 1/28$794
This United Airlines deal was found by Cheapflights users on 1/27. 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 4/276:05 pm
STL
-
AKL
2 stops44h 05m
United Airlines
Sat 5/161:50 pm
AKL
-
STL
1 stop21h 32m
United Airlines
Deal found 1/27$814
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/243:35 pm
ORD
-
BNE
1 stop25h 10m
Multiple Airlines
Tue 3/36:10 am
BNE
-
ORD
2 stops24h 31m
Multiple Airlines
Deal found 1/28$832
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:45 pm
ORD
-
AKL
1 stop22h 10m
Qantas Airways
Wed 3/43:50 pm
AKL
-
ORD
1 stop18h 03m
Qantas Airways
Deal found 1/28$840
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:15 pm
ORD
-
AKL
1 stop24h 40m
Qantas Airways
Thu 3/53:50 pm
AKL
-
ORD
1 stop26h 57m
Qantas Airways
Deal found 1/28$841
This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:54 pm
ORD
-
AKL
1 stop23h 31m
Qantas Airways
Sun 11/151:20 pm
AKL
-
ORD
1 stop22h 55m
Qantas Airways
Deal found 1/28$842
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/44:10 pm
ORD
-
AKL
1 stop22h 45m
Qantas Airways
Wed 2/181:20 pm
AKL
-
ORD
1 stop19h 37m
Qantas Airways
Deal found 1/27$845
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:45 pm
ORD
-
AKL
1 stop21h 40m
Qantas Airways
Sun 11/291:20 pm
AKL
-
ORD
1 stop22h 55m
Qantas Airways
Deal found 1/27$846
This Air Canada deal was found by Cheapflights users on 1/27. 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.
Tue 2/243:35 pm
ORD
-
AKL
2 stops48h 25m
Air Canada
Tue 3/101:00 pm
AKL
-
ORD
1 stop19h 41m
Air Canada
Deal found 1/27$847
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Sun 2/223:35 pm
ORD
-
AKL
1 stop24h 25m
Air Canada
Sun 3/81:00 pm
AKL
-
ORD
1 stop19h 41m
Air Canada
Deal found 1/28$850
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Sat 2/75:04 pm
STL
-
AKL
1 stop21h 06m
Qantas Airways
Sat 2/141:20 pm
AKL
-
STL
1 stop22h 53m
Qantas Airways
Deal found 1/27$852
This FlightHub deal was found by Cheapflights users on 1/27. 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 2/247:29 pm
ORD
-
AKL
1 stop19h 26m
Qantas Airways
Tue 3/33:50 pm
AKL
-
ORD
1 stop18h 03m
Qantas Airways
Deal found 1/27$852

Find flight deals from Illinois to South Pacific

Keep the following information in mind while searching for Illinois to South Pacific flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$794
(United Airlines)

One-way from

$489
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$1,364
Provider with most accurate pricing for Chicago (CHI)-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Sydney Kingsford Smith flights.
Search Deals
From Illinois to South Pacific
Search Deals
One-way flight from Illinois to South Pacific
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($235 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 January 29, 2026.
Use the filters below to find and compare flights from Illinois to South Pacific that are best for you.

Fly from

Illinois

Fly to

South Pacific

Route

Depart

Return

Price

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 3/3

5:25 pm-9:10 am

1 stop20h 45m

Auckland Intl

Tue 3/17

2:50 pm-10:25 pm

1 stop25h 35m

$794

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 3/3

7:10 am-8:35 am

2 stops30h 25m

Auckland Intl

Tue 3/17

1:35 pm-5:07 pm

2 stops21h 32m

$799

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sat 2/21

3:40 pm-8:35 am

2 stops21h 55m

Auckland Intl

Wed 3/11

1:35 pm-11:25 pm

2 stops27h 50m

$799

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sat 4/11

2:40 pm-7:10 am

2 stops23h 30m

Auckland Intl

Sat 4/18

1:50 pm-9:47 pm

2 stops24h 57m

$799

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sun 3/8

7:03 am-7:35 am

2 stops30h 32m

Auckland Intl

Sun 3/15

1:35 pm-4:32 pm

2 stops20h 57m

$799

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 4/28

8:30 am-7:10 am

1 stop29h 40m

Auckland Intl

Sat 5/16

1:50 pm-9:08 pm

2 stops24h 18m

$799

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 3/3

6:00 am-8:35 am

2 stops31h 35m

Auckland Intl

Wed 3/18

1:35 pm-12:21 am

2 stops28h 46m

$799

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 2/24

3:35 pm-8:45 am

1 stop25h 10m

Brisbane

Tue 3/3

6:10 am-2:41 pm

2 stops24h 31m

$832

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sat 2/21

6:18 pm-9:10 am

1 stop19h 52m

Auckland Intl

Sat 2/28

1:15 pm-11:59 pm

2 stops29h 44m

$864

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Tue 3/3

6:18 pm-9:10 am

1 stop19h 52m

Auckland Intl

Tue 3/17

4:35 pm-11:58 pm

2 stops25h 23m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to South Pacific

Have a flexible travel schedule? Discover the best time to fly to South Pacific from Illinois 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 Illinois to South Pacific

What is the cheapest month to book a flight from Illinois to South Pacific?

Currently, August is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $198). Flying from Illinois to South Pacific in November is currently the most expensive (average of $785). 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.

Related info for your journey

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

  • How long is the flight from Illinois to South Pacific?

    There are many flights that can get you from Illinois to South Pacific in 20h 45m. Fly via United Airlines, Delta, or Qantas Airways to get the fastest option. The distance from Illinois to South Pacific is about 7970 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to South Pacific one-way?

    $229 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on ANA and American Airlines, with prices starting from $304 and $395, respectively.

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

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

  • How can I find direct flights from Illinois to South Pacific?

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

  • Can I find deals for business class flights from Illinois to South Pacific?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to South Pacific?

    Currently, August is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $198). Flying from Illinois to South Pacific in November is currently the most expensive (average of $785). 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

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Top 10 airlines flying from Illinois to South Pacific

Discover the top 10 airlines that operate flights from Illinois 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$307Average$1,570FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$428Average$1,181FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$675Average$1,273FlexibilityNo cancel feeOn-time74%
ANACheapest$703Average$1,237FlexibilityNo cancel feeOn-time80%
Fiji AirwaysCheapest$712Average$1,321FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$791Average$1,262FlexibilityNo cancel feeOn-time71%
DeltaCheapest$935Average$1,034FlexibilityNo cancel feeOn-timeN/A
Air Tahiti NuiCheapest$1,046Average$1,378FlexibilityNo cancel feeOn-time73%
Air New ZealandCheapest$1,062Average$1,551FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,229Average$2,092FlexibilityNo cancel feeOn-time68%

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