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$645+ Cheap flights from Chicago (CHI) to Perth (PER)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PER
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Chicago to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Perth (PER). 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 September 15, 2025.

Round-trip from

$1,071
(Trip.com)

One-way from

$645
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$2,520
From Chicago (CHI) to Perth
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One-way flight from Chicago (CHI) to Perth
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Highest demand for flights based on searches. 15% potential increase in price ($310 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($84 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 Chicago to Perth

Cheapest flights from Chicago to Perth
Explore the most affordable flight options available from Chicago to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

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.
Thu 10/303:35 pmORD - PER
2 stops47h 45mMultiple Airlines
Thu 11/65:35 amPER - ORD
2 stops45h 20mMultiple Airlines
Deal found 9/15$1,071
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:40 pmORD - PER
2 stops47h 40mMultiple Airlines
Sun 11/235:50 pmPER - ORD
2 stops57h 10mMultiple Airlines
Deal found 9/14$1,245
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:00 amORD - PER
2 stops49h 55mMultiple Airlines
Wed 11/191:50 pmPER - ORD
2 stops45h 50mMultiple Airlines
Deal found 9/14$1,270
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:50 pmORD - PER
1 stop27h 10mQatar Airways
Tue 11/1810:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/14$1,301
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.
Thu 10/307:50 pmORD - PER
1 stop33h 55mQatar Airways
Wed 11/1210:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/15$1,304
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.
Thu 10/307:50 pmORD - PER
1 stop33h 55mQatar Airways
Thu 11/610:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/15$1,310
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:50 pmORD - PER
1 stop27h 10mQatar Airways
Sun 11/2310:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/14$1,340
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:50 pmORD - PER
1 stop27h 10mQatar Airways
Tue 11/1810:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/12$1,346
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:50 pmORD - PER
1 stop27h 10mQatar Airways
Fri 11/2110:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 9/12$1,355
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:00 amORD - PER
2 stops49h 55mMultiple Airlines
Mon 11/171:15 amPER - ORD
2 stops29h 15mMultiple Airlines
Deal found 9/14$1,388

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Perth 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 Chicago to Perth that are best for you.

Fly from

Chicago

Fly to

Perth

Route

Depart

Return

Price

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 11/9

6:50 pm-12:00 pm

1 stop27h 10m

Perth

Thu 11/20

10:45 pm-2:30 pm

1 stop29h 45m

$1,434

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 10/30

7:50 pm-6:45 pm

1 stop33h 55m

Perth

Thu 11/6

4:15 pm-2:30 pm

2 stops36h 15m

$1,441

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 11/8

6:50 pm-12:00 pm

1 stop27h 10m

Perth

Fri 11/21

10:45 pm-2:30 pm

1 stop29h 45m

$1,474

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 11/8

6:50 pm-12:00 pm

1 stop27h 10m

Perth

Sun 11/16

10:45 pm-2:30 pm

1 stop29h 45m

$1,514

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 11/7

6:50 pm-12:00 pm

1 stop27h 10m

Perth

Sat 11/22

10:45 pm-2:30 pm

1 stop29h 45m

$1,514

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 11/6

6:50 pm-1:25 am

2 stops64h 35m

Perth

Fri 11/21

3:05 pm-2:30 pm

1 stop37h 25m

$1,558

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 11/9

6:50 pm-1:25 am

2 stops64h 35m

Perth

Mon 11/17

3:05 pm-2:30 pm

1 stop37h 25m

$1,558

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 11/6

6:50 pm-1:25 am

2 stops64h 35m

Perth

Mon 11/17

10:45 pm-2:30 pm

1 stop29h 45m

$1,558

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 9/18

4:00 pm-10:40 pm

1 stop41h 40m

Perth

Sun 9/21

12:10 am-2:25 pm

1 stop27h 15m

$1,573

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 11/5

2:40 pm-6:55 am

1 stop26h 15m

Perth

Sat 11/22

12:15 am-1:00 pm

1 stop26h 45m

$1,573

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 13 results
1
2

Best time to book a flight from Chicago to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth 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 Perth

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

Currently, February is the cheapest month in which you can book a flight from Chicago to Perth (average of $1,438). Flying from Chicago to Perth in December is currently the most expensive (average of $2,172). 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 PER?

Find hourly flight availability from Chicago to Perth. 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.

It’s typically best to fly out from Chicago to Perth in the evening. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Chicago to Perth?

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. 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 Perth. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Chicago to Perth, such as Cathay Pacific and Qantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
993 reviews

Entertainment

7.8

Crew

8.1

Comfort

7.6

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
993 reviews
Cathay Pacific
7.6
Good
993 reviews

Entertainment

7.8

Crew

8.1

Comfort

7.6

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Qantas Airways
7.5
Good
905 reviews
Cathay Pacific
7.6
Good
993 reviews

Entertainment

7.8

Crew

8.1

Comfort

7.6

Overall

7.6

Food

7.3

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

Related info for your journey

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

  • What airport do you fly into for flights to Perth from Chicago?

    Located just 6.3 mi from the city center, Perth is the airport most travelers will use when flying to Perth from Chicago. Booking flights from Chicago to Perth (PER) should be relatively easy as there are 0 daily inbound flights from Chicago from 3 different airlines.

  • How long is the flight from Chicago to Perth?

    Departing from Chicago to Perth will take you 27h 10m. There are 10947 mi between Chicago and Perth.

  • What are the cheapest airlines flying from Chicago to Perth round-trip?

    According to our current data, Qantas Airways ($1,191), Qatar Airways ($1,229), and Cathay Pacific ($1,468) offers the cheapest pricing from Chicago to Perth. Qantas Airways is currently priced 29% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from Chicago to Perth?

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

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

    Yes. Cheapflights offers flight deals from Chicago to Perth 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 Perth?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Perth (average of $1,438). Flying from Chicago to Perth in December is currently the most expensive (average of $2,172). 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

Traveling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Fremantle
Rottnest Island
Scarborough

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chicago to Perth

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Perth flights
St. Louis to Perth flights
O'Hare Intl to Broome flights

Top 3 airlines flying from Chicago to Perth

Discover the top 3 airlines that operate flights from Chicago to Perth. 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
Qantas AirwaysCheapest$1,191Average$1,522FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,229Average$1,331FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,468Average$2,048FlexibilityNo cancel feeOn-time72%

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