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South Pacific

$398+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$849
(Expedia)

One-way from

$398
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$999
From Illinois to South Pacific
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One-way flight from Illinois to South Pacific
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Highest demand for flights based on searches. 15% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 12/85:54 pmSTL - AKL
1 stop20h 16mAmerican Airlines
Mon 12/221:20 pmAKL - STL
1 stop25h 02mAmerican Airlines
Deal found 9/13$863
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 12/86:30 amSTL - AKL
2 stops31h 05mDelta
Mon 12/222:35 pmAKL - STL
2 stops22h 44mDelta
Deal found 9/15$867
This flugladen.de deal was found by Cheapflights users on 9/14. 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.
Mon 11/36:30 amORD - AKL
2 stops36h 10mMultiple Airlines
Mon 11/173:10 pmAKL - ORD
2 stops26h 50mMultiple Airlines
Deal found 9/14$876
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/14:43 pmSTL - AKL
2 stops46h 27mUnited Airlines
Sat 11/153:50 pmAKL - STL
2 stops37h 49mUnited Airlines
Deal found 9/14$883
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Mon 12/85:30 pmSTL - AKL
1 stop20h 40mAir New Zealand
Mon 12/227:45 pmAKL - STL
1 stop21h 10mAir New Zealand
Deal found 9/15$935
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:20 amSTL - AKL
1 stop27h 35mAir New Zealand
Thu 11/67:45 pmAKL - STL
1 stop18h 02mAir New Zealand
Deal found 9/15$980
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Mon 12/85:30 pmSTL - AKL
1 stop20h 40mQantas Airways
Mon 12/221:20 pmAKL - STL
1 stop20h 40mQantas Airways
Deal found 9/15$1,010
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/285:29 pmSTL - AKL
2 stops30h 16mUnited Airlines
Tue 11/43:50 pmAKL - STL
1 stop19h 37mUnited Airlines
Deal found 9/12$1,023
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/2712:03 pmMDW - SYD
2 stops28h 57mMultiple Airlines
Sun 11/92:05 pmSYD - MDW
2 stops24h 58mMultiple Airlines
Deal found 9/15$1,033
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:20 amORD - PPT
2 stops24h 40mAlaska Airlines
Wed 11/57:00 amPPT - ORD
2 stops18h 01mAlaska Airlines
Deal found 9/15$1,056
This oojo deal was found by Cheapflights users on 9/15. 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.
Wed 11/197:00 amSTL - AKL
2 stops36h 40mQantas Airways
Wed 12/106:10 amAKL - STL
2 stops36h 47mQantas Airways
Deal found 9/15$1,065
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Wed 10/228:00 amORD - PPT
1 stop25h 00mAir Tahiti Nui
Wed 11/57:00 amPPT - ORD
1 stop37h 24mAir Tahiti Nui
Deal found 9/13$1,066

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 September 15, 2025.
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

Sat 2/14

2:45 pm-11:00 am

2 stops25h 15m

Auckland Intl

Mon 3/2

2:00 pm-3:29 pm

2 stops44h 29m

$849

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Mon 12/8

5:54 pm-9:10 am

1 stop20h 16m

Auckland Intl

Mon 12/22

1:20 pm-7:22 pm

1 stop25h 02m

$863

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Mon 11/10

4:43 pm-9:10 am

2 stops21h 27m

Auckland Intl

Mon 11/17

3:50 pm-4:27 pm

1 stop19h 37m

$863

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sat 2/14

4:04 pm-9:10 am

1 stop22h 06m

Auckland Intl

Mon 3/2

3:50 pm-11:08 pm

1 stop26h 18m

$863

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Thu 2/5

3:11 pm-9:10 am

2 stops22h 59m

Auckland Intl

Fri 2/13

3:50 pm-10:14 pm

2 stops25h 24m

$867

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Sun 2/8

5:00 pm-9:10 am

1 stop21h 10m

Auckland Intl

Tue 2/17

3:50 pm-9:00 pm

2 stops24h 10m

$867

St. LouisAuckland

STL - AKL

STLAKL

Lambert-St Louis

Wed 1/21

5:00 pm-9:10 am

1 stop21h 10m

Auckland Intl

Fri 2/27

3:50 pm-9:23 am

2 stops36h 33m

$867

ChicagoPapeete

ORD - PPT

ORDPPT

Chicago O'Hare Intl

Wed 10/22

8:00 am-4:00 am

1 stop25h 00m

Papeete Faaa

Wed 11/5

7:00 am-5:01 am

2 stops18h 01m

$1,056

ChicagoPapeete

ORD - PPT

ORDPPT

Chicago O'Hare Intl

Wed 10/8

6:00 am-4:00 am

1 stop27h 00m

Papeete Faaa

Wed 10/15

7:00 am-6:24 am

1 stop18h 24m

$1,109

ChicagoPapeete

ORD - PPT

ORDPPT

Chicago O'Hare Intl

Sun 9/28

7:00 am-4:00 am

2 stops26h 00m

Papeete Faaa

Wed 10/1

7:00 am-10:07 pm

1 stop34h 07m

$1,152

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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, March is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $1,032). Flying from Illinois to South Pacific in December is currently the most expensive (average of $1,627). 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 IL to SP?

Find hourly flight availability from Illinois 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 September 15, 2025.

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

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 16m. Fly via Air Canada, American Airlines, or Alaska Airlines 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?

    $592 is the cheapest one-way deal found within the past few days, from Fiji Airways. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $693 and $742, 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, March is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $1,032). Flying from Illinois to South Pacific in December is currently the most expensive (average of $1,627). 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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Alternative routes for Illinois to South Pacific

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$307Average$1,473FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$647Average$1,196FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$663Average$1,279FlexibilityNo cancel feeOn-time67%
ANACheapest$679Average$1,186FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$679Average$1,431FlexibilityNo cancel feeOn-time71%
Fiji AirwaysCheapest$712Average$1,324FlexibilityNo cancel feeOn-time74%
DeltaCheapest$846Average$1,034FlexibilityNo cancel feeOn-timeN/A
Air Tahiti NuiCheapest$1,051Average$1,370FlexibilityNo cancel feeOn-time73%
Air New ZealandCheapest$1,221Average$1,525FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,229Average$1,331FlexibilityNo cancel feeOn-time68%

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