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South Pacific

$345+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Mar 9 — Mar 161
Sun 3/9
Sun 3/16
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 March 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$681
(American Airlines)

One-way from

$345
(Justfly.com)

Popular in

December

Cheapest in

August

Average price

$912

Good one-way deal

$1,000 or less
Provider with most accurate pricing for Chicago (CHI)-Sydney Kingsford Smith flight deals.
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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. 10% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a one-way flight from Illinois to South Pacific.
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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 March 4, 2025.

This Justfly.com deal was found by Cheapflights users on 3/3. 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.
Fri 3/73:16 pmORD - BNE
1 stop21h 44mQantas Airways
Sat 3/158:05 amBNE - ORD
1 stop19h 15mQantas Airways
Deal found 3/3$675
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Sat 3/153:16 pmORD - BNE
1 stop22h 44mAmerican Airlines
Sat 3/2210:00 pmBNE - ORD
1 stop23h 25mAmerican Airlines
Deal found 3/3$681
This Justfly.com deal was found by Cheapflights users on 3/3. 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.
Fri 4/187:20 pmORD - SYD
1 stop20h 45mQantas Airways
Thu 5/89:10 amSYD - ORD
1 stop21h 45mQantas Airways
Deal found 3/3$816
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Sun 4/65:30 pmORD - SYD
1 stop22h 05mAmerican Airlines
Sat 4/195:35 pmSYD - ORD
1 stop21h 24mAmerican Airlines
Deal found 3/3$818
This KAYAK deal was found by Cheapflights users on 3/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:33 pmORD - MEL
1 stop26h 12mQantas Airways
Sat 6/1411:55 amMEL - ORD
1 stop21h 55mQantas Airways
Deal found 3/3$842
This American Airlines deal was found by Cheapflights users on 3/3. 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 4/175:30 pmORD - MEL
2 stops25h 55mAmerican Airlines
Thu 4/2411:55 amMEL - ORD
1 stop27h 04mAmerican Airlines
Deal found 3/3$844
This Fareboom deal was found by Cheapflights users on 3/3. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:15 amORD - SYD
2 stops32h 05mMultiple Airlines
Sat 11/812:25 pmSYD - ORD
2 stops33h 38mMultiple Airlines
Deal found 3/3$864
This Flighttix deal was found by Cheapflights users on 3/3. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/712:05 pmORD - MEL
1 stop24h 35mMultiple Airlines
Thu 3/2012:00 pmMEL - ORD
2 stops23h 44mMultiple Airlines
Deal found 3/3$912
This Delta deal was found by Cheapflights users on 3/3. 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.
Tue 10/211:55 pmORD - SYD
2 stops25h 40mDelta
Sun 11/911:05 amSYD - ORD
2 stops27h 16mDelta
Deal found 3/3$936
This Delta deal was found by Cheapflights users on 3/3. 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.
Tue 10/211:05 pmMDW - SYD
2 stops26h 30mDelta
Tue 11/1111:05 amSYD - MDW
2 stops27h 42mDelta
Deal found 3/3$936
This Gurufare deal was found by Cheapflights users on 3/3. 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.
Mon 10/205:45 pmORD - SYD
1 stop34h 30mANA
Mon 11/1012:25 pmSYD - ORD
1 stop35h 55mANA
Deal found 3/3$939
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:16 pmORD - PPT
2 stops38h 34mMultiple Airlines
Mon 4/217:00 amPPT - ORD
1 stop30h 20mMultiple Airlines
Deal found 3/3$945

Find flights from Illinois to South Pacific within your budget

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 March 4, 2025.

Fly from

Illinois

Fly to

South Pacific

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 3/15

3:16 pm-5:00 am

1 stop22h 44m

Brisbane

Sat 3/22

10:00 pm-11:48 am

1 stop28h 48m

$681

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Fri 3/14

8:20 pm-5:00 am

1 stop41h 40m

Brisbane

Wed 3/26

8:05 am-1:06 pm

1 stop20h 01m

$684

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 4/18

7:20 pm-7:05 am

1 stop20h 45m

Sydney Kingsford Smith

Thu 5/8

9:10 am-3:55 pm

1 stop21h 45m

$816

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 4/6

5:30 pm-6:35 am

1 stop22h 05m

Sydney Kingsford Smith

Sat 4/19

5:35 pm-11:59 pm

1 stop21h 24m

$818

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Sat 5/31

1:33 pm-6:45 am

1 stop26h 12m

Melbourne

Sat 6/14

11:55 am-6:50 pm

1 stop21h 55m

$842

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Thu 4/17

5:30 pm-10:25 am

2 stops25h 55m

Melbourne

Thu 4/24

11:55 am-11:59 pm

1 stop27h 04m

$844

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 3/14

8:15 am-6:50 am

2 stops30h 35m

Sydney Kingsford Smith

Fri 3/21

2:00 pm-11:59 pm

2 stops25h 59m

$867

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 6/3

1:33 pm-6:45 am

1 stop26h 12m

Melbourne

Tue 6/17

1:55 pm-11:55 pm

2 stops25h 00m

$919

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 4/13

10:25 am-6:35 am

2 stops29h 10m

Sydney Kingsford Smith

Wed 4/23

9:25 am-5:04 pm

2 stops22h 39m

$936

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Sun 4/13

2:57 pm-6:35 am

2 stops24h 38m

Sydney Kingsford Smith

Wed 4/23

9:25 am-5:19 pm

2 stops22h 54m

$936

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

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.

Travel insights for flights from Illinois to South Pacific

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

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

Currently, February is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $1,051). Flying from Illinois 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 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 March 4, 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.

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 4, 2025.
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

EVA Air
8.4
Very good
1,183 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Korean Air
8.4
Very good
1,034 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

ANA
8.4
Very good
834 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Japan Airlines
8.3
Very good
1,435 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Food

7.8

Comfort

8.0

Crew

9.1

Overall

8.7

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    $345 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on ANA and American Airlines, with prices starting from $347 and $353, 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, February is the cheapest month in which you can book a flight from Illinois to South Pacific (average of $1,051). Flying from Illinois 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

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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 March 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$1,304FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$630Average$1,336FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$781FlexibilityNo cancel feeOn-time80%
Fiji AirwaysCheapest$712Average$910FlexibilityNo cancel feeOn-time74%
DeltaCheapest$838Average$1,094FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$953Average$1,434FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$994Average$1,737FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,138Average$1,400FlexibilityNo cancel feeOn-time72%
Air Tahiti NuiCheapest$1,195Average$1,378FlexibilityNo cancel feeOn-time73%
Air New ZealandCheapest$1,201Average$1,502FlexibilityNo cancel feeOn-time78%
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