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Perth

$562+ Cheap flights from Illinois 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PER
Feb 8 — Feb 151
Sun 2/8
Sun 2/15
1 adult, Economy
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Cheap flight deals from Illinois to Perth

Keep the following information in mind while searching for Illinois to Perth flight deals. Data was last updated January 9, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,300
(oojo)

One-way from

$562
(Kiwi.com)

Popular in

September

Cheapest in

March

Average price

$1,732
Provider with most accurate pricing for Chicago (CHI)-Perth flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Perth flights.
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From Illinois to Perth
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One-way flight from Illinois to Perth
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Highest demand for flights based on searches. 14% potential increase in price ($279 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 January 2026
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Find flight deals from Illinois to Perth

Cheapest flights from Illinois to Perth
Explore the most affordable flight options available from Illinois to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 9, 2026.

This oojo deal was found by Cheapflights users on 1/8. 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 5/68:48 pmORD - PER
2 stops43h 22mMultiple Airlines
Mon 5/181:45 pmPER - ORD
2 stops42h 18mMultiple Airlines
Deal found 1/8$1,300
This oojo deal was found by Cheapflights users on 1/6. 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.
Sun 5/314:40 pmORD - PER
2 stops34h 20mAir New Zealand
Sat 8/1511:50 pmPER - ORD
2 stops35h 52mAir New Zealand
Deal found 1/6$1,474
This oojo deal was found by Cheapflights users on 1/7. 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.
Tue 3/32:35 pmORD - PER
2 stops36h 15mAir New Zealand
Sun 3/156:50 pmPER - ORD
2 stops38h 33mAir New Zealand
Deal found 1/7$1,475
This Bravofly deal was found by Cheapflights users on 1/7. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2110:51 amORD - PER
2 stops39h 59mAir New Zealand
Sat 2/2811:50 pmPER - ORD
2 stops38h 36mAir New Zealand
Deal found 1/7$1,493
This oojo deal was found by Cheapflights users on 1/8. 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.
Sun 2/2212:55 pmORD - PER
2 stops37h 55mAir New Zealand
Sun 3/16:50 pmPER - ORD
2 stops38h 05mAir New Zealand
Deal found 1/8$1,523
This KAYAK deal was found by Cheapflights users on 1/7. 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.
Sun 5/37:45 amORD - PER
2 stops43h 15mAir New Zealand
Sat 5/1611:50 pmPER - ORD
2 stops42h 15mAir New Zealand
Deal found 1/7$1,560
This Bravofly deal was found by Cheapflights users on 1/8. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:00 amSTL - PER
2 stops44h 50mAir New Zealand
Sun 3/16:50 pmPER - STL
2 stops52h 33mAir New Zealand
Deal found 1/8$1,560
This Gurufare deal was found by Cheapflights users on 1/6. 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.
Thu 2/53:53 pmORD - PER
2 stops40h 27mAir New Zealand
Thu 2/1211:50 pmPER - ORD
2 stops34h 03mAir New Zealand
Deal found 1/6$1,578
This oojo deal was found by Cheapflights users on 1/7. 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.
Tue 3/36:04 amORD - PER
3 stops42h 41mMultiple Airlines
Sat 3/141:15 amPER - ORD
2 stops35h 41mMultiple Airlines
Deal found 1/7$1,591
This KAYAK deal was found by Cheapflights users on 1/7. 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.
Sun 5/37:10 amORD - PER
2 stops43h 50mAir New Zealand
Wed 5/207:50 pmPER - ORD
2 stops42h 08mAir New Zealand
Deal found 1/7$1,610
This Trip.com deal was found by Cheapflights users on 1/7. 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.
Fri 11/611:15 amORD - PER
2 stops52h 20mMultiple Airlines
Sun 11/222:35 pmPER - ORD
2 stops31h 55mMultiple Airlines
Deal found 1/7$1,618
This Qantas Airways deal was found by Cheapflights users on 1/8. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/216:36 amSTL - PER
2 stops39h 39mQantas Airways
Tue 7/711:45 pmPER - STL
2 stops37h 14mQantas Airways
Deal found 1/8$1,622

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 January 9, 2026.
Use the filters below to find and compare flights from Illinois to Perth that are best for you.

Fly from

Illinois

Fly to

Perth

Route

Depart

Return

Price

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 5/6

8:48 pm-5:10 am

2 stops43h 22m

Perth

Mon 5/18

1:45 pm-7:03 pm

2 stops42h 18m

$1,300

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 5/31

4:40 pm-4:00 pm

2 stops34h 20m

Perth

Sat 8/15

11:50 pm-10:42 pm

2 stops35h 52m

$1,474

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 2/21

10:51 am-4:50 pm

2 stops39h 59m

Perth

Sat 2/28

11:50 pm-12:26 am

2 stops38h 36m

$1,493

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sun 2/22

6:00 am-4:50 pm

2 stops44h 50m

Perth

Sun 3/1

6:50 pm-9:23 am

2 stops52h 33m

$1,560

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 3/3

6:04 am-2:45 pm

3 stops42h 41m

Perth

Sat 3/14

1:15 am-11:56 pm

2 stops35h 41m

$1,591

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 5/6

2:15 pm-4:00 pm

2 stops36h 45m

Perth

Tue 5/19

7:50 pm-9:33 pm

2 stops38h 43m

$1,610

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sun 6/21

6:36 am-11:15 am

2 stops39h 39m

Perth

Tue 7/7

11:45 pm-11:59 pm

2 stops37h 14m

$1,622

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sun 6/21

6:36 am-3:15 pm

2 stops43h 39m

Perth

Wed 7/8

6:20 am-6:30 pm

2 stops25h 10m

$1,622

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sun 2/22

6:38 am-9:00 pm

2 stops48h 22m

Perth

Sat 2/28

3:55 pm-11:59 pm

2 stops46h 04m

$1,629

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 6/24

6:36 am-11:55 pm

2 stops52h 19m

Perth

Sun 7/5

11:45 pm-11:59 pm

2 stops37h 14m

$1,650

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 30 results
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Best time to book a flight from Illinois to Perth

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

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

Currently, May is the cheapest month in which you can book a flight from Illinois to Perth (average of $1,231). Flying from Illinois to Perth in July is currently the most expensive (average of $1,615). 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.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    If you book a flight to Perth from Illinois, you will be flying to Perth, which is the city’s only airport. Perth (PER) is located 6.3 mi from the center of Perth.

  • How long is the flight from Illinois to Perth?

    There are many flights that can get you from Illinois to Perth in 34h 20m. Fly via Air New Zealand, Qatar Airways, or Qantas Airways to get the fastest option. Airlines will cover a distance of 10947 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Illinois to Perth (average of $1,231). Flying from Illinois to Perth in July is currently the most expensive (average of $1,615). 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

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Alternative routes for Illinois to Perth

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Perth

Discover the top 3 airlines that operate flights from Illinois 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 January 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,191Average$1,676FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,229Average$2,092FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,418Average$1,773FlexibilityNo cancel feeOn-time72%

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