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$390+ 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Illinois to South Pacific

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to South Pacific (0SP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$799
(Mytrip)

One-way from

$390
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,149

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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Provider most trusted by Cheapflights users for Chicago (CHI)-Sydney Kingsford Smith flights.
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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. 6% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/124:45 pmORD - BNE
2 stops26h 35mMultiple Airlines
Wed 3/1911:20 amBNE - ORD
2 stops33h 33mMultiple Airlines
Deal found 1/29$799
This Flighttix deal was found by Cheapflights users on 1/29. 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.
Sat 3/151:20 pmORD - BNE
2 stops24h 40mBritish Airways
Sat 3/2210:00 pmBNE - ORD
1 stop34h 23mBritish Airways
Deal found 1/29$801
This Justfly.com deal was found by Cheapflights users on 1/29. 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.
Sun 2/238:50 amORD - BNE
1 stop28h 10mQantas Airways
Fri 3/79:40 amBNE - ORD
1 stop27h 29mQantas Airways
Deal found 1/29$805
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/159:45 amORD - BNE
1 stop28h 15mAmerican Airlines
Sat 3/2210:00 pmBNE - ORD
1 stop22h 31mAmerican Airlines
Deal found 1/29$819
This Justfly.com deal was found by Cheapflights users on 1/30. 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.
Thu 4/107:29 pmORD - SYD
1 stop20h 36mQantas Airways
Mon 4/145:35 pmSYD - ORD
1 stop37h 21mQantas Airways
Deal found 1/30$833
This oojo deal was found by Cheapflights users on 1/29. 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 4/126:45 pmORD - NAN
1 stop17h 35mFiji Airways
Sat 4/199:15 pmNAN - ORD
1 stop17h 01mFiji Airways
Deal found 1/29$835
This Flighttix deal was found by Cheapflights users on 1/29. 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 1/312:14 pmORD - SYD
1 stop24h 11mBritish Airways
Thu 2/1311:50 amSYD - ORD
1 stop29h 04mBritish Airways
Deal found 1/29$843
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 1/313:20 pmORD - SYD
1 stop23h 05mAmerican Airlines
Thu 2/1311:50 amSYD - ORD
2 stops25h 04mAmerican Airlines
Deal found 1/29$847
This Fiji Airways deal was found by Cheapflights users on 1/29. 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.
Mon 2/38:35 pmORD - NAN
1 stop38h 45mMultiple Airlines
Tue 2/119:15 pmNAN - ORD
1 stop20h 44mMultiple Airlines
Deal found 1/29$906
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:45 pmORD - SYD
2 stops27h 45mMultiple Airlines
Mon 3/242:00 pmSYD - ORD
2 stops31h 53mMultiple Airlines
Deal found 1/29$907
This Fareboom deal was found by Cheapflights users on 1/29. 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.
Tue 8/125:50 pmORD - BNE
2 stops23h 40mAir New Zealand
Mon 9/19:45 amBNE - ORD
2 stops28h 00mAir New Zealand
Deal found 1/29$916
This Delta deal was found by Cheapflights users on 1/30. 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 11/163:50 pmORD - SYD
2 stops23h 45mDelta
Wed 12/311:05 amSYD - ORD
2 stops24h 35mDelta
Deal found 1/30$935

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 2/24

2:13 pm-5:00 am

1 stop22h 47m

Brisbane

Sun 3/16

8:05 am-1:06 pm

1 stop20h 01m

$805

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 3/15

8:13 am-5:00 am

1 stop29h 47m

Brisbane

Sat 3/22

10:00 pm-11:48 am

1 stop28h 48m

$819

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 3/17

7:17 pm-9:00 am

1 stop21h 43m

Sydney Kingsford Smith

Sat 4/5

6:35 pm-5:24 pm

1 stop38h 49m

$833

ChicagoNadi

ORD - NAN

ORDNAN

Chicago O'Hare Intl

Sat 4/12

6:45 pm-5:20 am

1 stop17h 35m

Nadi

Sat 4/19

9:15 pm-9:16 pm

1 stop17h 01m

$835

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Wed 3/12

4:45 pm-10:20 am

2 stops26h 35m

Brisbane

Wed 3/19

11:20 am-5:53 am

2 stops33h 33m

$837

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 3/16

10:15 am-6:35 am

1 stop28h 20m

Sydney Kingsford Smith

Sun 3/23

9:25 pm-6:33 am

1 stop25h 08m

$846

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 4/13

4:45 pm-7:05 am

2 stops23h 20m

Sydney Kingsford Smith

Tue 6/3

5:35 pm-10:43 pm

1 stop20h 08m

$858

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 3/4

10:56 am-9:50 pm

2 stops41h 54m

Sydney Kingsford Smith

Sun 3/9

11:15 am-2:55 pm

1 stop20h 40m

$899

ChicagoNadi

ORD - NAN

ORDNAN

Chicago O'Hare Intl

Fri 3/28

8:35 pm-5:20 am

1 stop39h 45m

Nadi

Thu 4/3

9:15 pm-7:24 am

1 stop27h 09m

$913

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 3/19

7:45 am-7:45 am

2 stops32h 00m

Sydney Kingsford Smith

Tue 4/1

10:25 am-8:44 pm

2 stops26h 19m

$935

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

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 January 30, 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 January 30, 2025.
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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
8.5
Very good
1,034 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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
1,238 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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
844 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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.

Fiji Airways
8.0
Very good
186 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Crew

9.1

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?

    $409 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 American Airlines and Alaska Airlines, with prices starting from $421 and $497, 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$1,298FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$630Average$1,342FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$781FlexibilityNo cancel feeOn-time80%
Fiji AirwaysCheapest$751Average$930FlexibilityNo cancel feeOn-time74%
DeltaCheapest$837Average$1,098FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$897Average$1,457FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$916Average$1,703FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,138Average$1,402FlexibilityNo cancel feeOn-time72%
Air New ZealandCheapest$1,181Average$1,503FlexibilityNo cancel feeOn-time78%
Air Tahiti NuiCheapest$1,213Average$1,404FlexibilityNo cancel feeOn-time73%
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