HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Pacific

$414+ Cheap flights from Chicago (CHI) 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SYD
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago 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 Chicago to South Pacific

Keep the following information in mind while searching for Chicago to South Pacific flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$763
(Air Canada)

One-way from

$414
(BestPriceTravel)

Popular in

December

Cheapest in

August

Average price

$899
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 Chicago (CHI) to South Pacific
Search Deals
One-way flight from Chicago (CHI) to South Pacific
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Chicago to South Pacific

Cheapest flights from Chicago to South Pacific
Explore the most affordable flight options available from Chicago to South Pacific. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Air Canada deal was found by Cheapflights users on 10/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1612:50 pmORD - SYD
2 stops27h 45mAir Canada
Tue 11/2511:20 amSYD - ORD
2 stops25h 40mAir Canada
Deal found 10/16$763
This Air Canada deal was found by Cheapflights users on 10/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:40 pmORD - SYD
1 stop24h 55mAir Canada
Sat 12/2711:20 amSYD - ORD
1 stop20h 21mAir Canada
Deal found 10/16$805
This CrystalTravel deal was found by Cheapflights users on 10/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:13 pmORD - SYD
1 stop24h 47mQantas Airways
Tue 1/2011:20 amSYD - ORD
1 stop22h 29mQantas Airways
Deal found 10/16$820
This Orbitz deal was found by Cheapflights users on 10/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/153:40 pmORD - SYD
1 stop24h 55mAir Canada
Mon 11/248:30 amSYD - ORD
2 stops23h 11mAir Canada
Deal found 10/16$821
This CrystalTravel deal was found by Cheapflights users on 10/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:23 pmORD - SYD
1 stop21h 37mQantas Airways
Tue 12/25:45 pmSYD - ORD
1 stop20h 31mQantas Airways
Deal found 10/16$823
This BestPriceTravel deal was found by Cheapflights users on 10/16. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:03 pmORD - SYD
1 stop21h 57mQantas Airways
Thu 11/205:45 pmSYD - ORD
1 stop20h 33mQantas Airways
Deal found 10/16$824
This CrystalTravel deal was found by Cheapflights users on 10/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:45 amORD - SYD
1 stop28h 15mQantas Airways
Wed 12/35:45 pmSYD - ORD
1 stop23h 14mQantas Airways
Deal found 10/16$825
This Air Canada deal was found by Cheapflights users on 10/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:50 pmORD - SYD
2 stops27h 45mAir Canada
Tue 11/1811:20 amSYD - ORD
1 stop22h 24mAir Canada
Deal found 10/16$826
This CrystalTravel deal was found by Cheapflights users on 10/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/299:18 amORD - SYD
1 stop30h 42mQantas Airways
Fri 12/1911:20 amSYD - ORD
1 stop23h 16mQantas Airways
Deal found 10/16$828
This Ovago deal was found by Cheapflights users on 10/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:10 pmORD - NAN
1 stop18h 10mFiji Airways
Tue 11/189:15 pmNAN - ORD
1 stop16h 25mFiji Airways
Deal found 10/14$915
This Orbitz deal was found by Cheapflights users on 10/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:03 pmORD - AVV
2 stops44h 32mMultiple Airlines
Wed 12/36:00 amAVV - ORD
2 stops34h 59mMultiple Airlines
Deal found 10/15$1,016
This FlightHub deal was found by Cheapflights users on 10/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:14 pmORD - CHC
2 stops30h 11mQantas Airways
Tue 11/184:35 pmCHC - ORD
2 stops32h 06mQantas Airways
Deal found 10/16$1,042

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 October 16, 2025.
Use the filters below to find and compare flights from Chicago to South Pacific that are best for you.

Fly from

Chicago

Fly to

South Pacific

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 12/31

1:39 pm-9:00 am

1 stop26h 21m

Sydney Kingsford Smith

Tue 1/20

11:20 am-4:49 pm

1 stop22h 29m

$855

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 12/31

3:13 pm-9:00 am

1 stop24h 47m

Sydney Kingsford Smith

Sun 1/11

5:45 pm-11:59 pm

1 stop23h 14m

$860

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 12/31

6:25 pm-9:15 am

1 stop21h 50m

Sydney Kingsford Smith

Tue 1/20

12:10 pm-9:26 pm

2 stops26h 16m

$875

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 11/6

3:55 pm-9:05 am

2 stops24h 10m

Sydney Kingsford Smith

Fri 11/14

11:50 am-2:54 pm

1 stop20h 04m

$876

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 12/29

6:15 am-6:20 am

1 stop31h 05m

Sydney Kingsford Smith

Mon 1/12

2:00 pm-12:28 am

2 stops27h 28m

$876

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 11/1

6:15 pm-9:05 am

2 stops22h 50m

Sydney Kingsford Smith

Sat 11/8

12:10 pm-4:58 pm

2 stops21h 48m

$881

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 11/29

3:43 pm-7:00 am

1 stop22h 17m

Sydney Kingsford Smith

Fri 12/19

11:20 am-7:55 pm

2 stops25h 35m

$881

ChicagoNadi

ORD - NAN

ORDNAN

Chicago O'Hare Intl

Tue 2/3

5:10 pm-5:20 am

1 stop18h 10m

Nadi

Tue 2/17

9:15 pm-7:18 pm

1 stop16h 03m

$892

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 12/27

4:34 pm-9:00 am

1 stop23h 26m

Sydney Kingsford Smith

Sun 1/11

5:45 pm-9:23 pm

1 stop20h 38m

$899

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 1/1

11:16 am-9:00 am

1 stop28h 44m

Sydney Kingsford Smith

Thu 1/15

11:20 am-2:57 pm

1 stop20h 37m

$913

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Chicago to South Pacific

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

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

Currently, August is the cheapest month in which you can book a flight from Chicago to South Pacific (average of $198). Flying from Chicago to South Pacific in February is currently the most expensive (average of $680). 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 CHI to SP?

Find hourly flight availability from Chicago 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 October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to South Pacific at noon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Chicago to South Pacific?

Use this chart to determine the cheapest time to fly round-trip from Chicago to South Pacific. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to South Pacific flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 16, 2025.
Read reviews from past customers who have flown Air New Zealand, Qantas Airways, and United Airlines from Chicago to South Pacific. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air New Zealand
8.0
Very good
515 reviews
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Qantas Airways
7.5
Good
918 reviews
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
United Airlines
7.4
Good
8,982 reviews
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
American Airlines
7.2
Good
11,040 reviews
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
Air Canada
7.1
Good
10,307 reviews
Air New Zealand
8.0
Very good
515 reviews

Entertainment

7.5

Food

7.4

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago to South Pacific?

    Airlines like Qantas Airways, United Airlines, and Fiji Airways fly from Chicago to South Pacific in about 18h 10m. The time it takes to get you to your destination can typically vary by up to 8h 11m. The distance between Chicago and South Pacific is about 7260 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $414. American Airlines flights start at $425 while deals on ANA start at $505 one-way.

  • What are the most popular routes from Chicago to South Pacific?

    While some choose either Chicago O'Hare Intl - Sydney Kingsford Smith or Chicago O'Hare Intl - Auckland Intl, Chicago O'Hare Intl - Melbourne is the most popular route from Chicago to South Pacific.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Chicago to South Pacific (average of $198). Flying from Chicago to South Pacific in February is currently the most expensive (average of $680). 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 Chicago to South Pacific

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Cancún flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Mexico City flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Newark flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Orlando flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Atlanta flights
O'Hare Intl to Tampa flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to San Francisco flights
O'Hare Intl to Denver flights
O'Hare Intl to Miami flights
O'Hare Intl to Seattle flights
Midway to Dallas/Fort Worth flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Baltimore flights
Midway to Cancún flights
O'Hare Intl to Luis Munoz Marin Intl flights
Midway to Las Vegas flights
Midway to Sky Harbor Intl flights
O'Hare Intl to Ontario flights
O'Hare Intl to Boston flights
Midway to John F Kennedy Intl flights
Midway to LaGuardia flights
O'Hare Intl to New Orleans flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Heathrow flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to San Diego flights
O'Hare Intl to Honolulu flights
O'Hare Intl to Narita flights
Midway to Miami flights
O'Hare Intl to George Bush Intcntl flights
Midway to Orlando flights
O'Hare Intl to Haneda flights
O'Hare Intl to Charles de Gaulle flights
O'Hare Intl to Cozumel flights
Midway to Atlanta flights
O'Hare Intl to Punta Cana flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Hobby flights
O'Hare Intl to Nashville flights
O'Hare Intl to Austin flights
Midway to Fort Lauderdale flights
Midway to Mexico City flights

Top 10 airlines flying from Chicago to South Pacific

Discover the top 10 airlines that operate flights from Chicago 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$307Average$1,628FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$465Average$1,243FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$630Average$1,176FlexibilityNo cancel feeOn-time74%
ANACheapest$679Average$1,193FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$679Average$1,280FlexibilityNo cancel feeOn-time71%
Fiji AirwaysCheapest$712Average$1,395FlexibilityNo cancel feeOn-time74%
DeltaCheapest$846Average$1,018FlexibilityNo cancel feeOn-timeN/A
Air Tahiti NuiCheapest$1,051Average$1,378FlexibilityNo cancel feeOn-time73%
Air New ZealandCheapest$1,222Average$1,578FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,229Average$1,331FlexibilityNo cancel feeOn-time68%

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.