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Cheap flights from Perth to Illinois from $921

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
PER — ORD
15 Sep — 22 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Perth to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Perth to Illinois
Explore the most affordable flight options available from Perth to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 August 2026.

Mon 12/1009:40 -
2 stops42h 03m
Wed 28/1015:30 -
2 stops39h 10m
Deal found 13/8$1,514
Mon 19/1018:25 -
2 stops33h 18m
Tue 3/1115:30 -
2 stops38h 10m
Deal found 12/8$1,604
Mon 19/1018:25 -
2 stops33h 18m
Wed 4/1115:30 -
2 stops35h 05m
Deal found 12/8$1,644
Mon 9/1108:35 -
1 stop22h 20m
Wed 25/1122:45 -
1 stop42h 35m
Deal found 12/8$1,903

Find flight deals from Perth to Illinois

Keep the following information in mind while searching for Perth to Illinois flight deals. Data was last updated 16 August 2026.

Round-trip from

$1,514

One-way from

$921

Popular in

April

Cheapest in

May

Average price

$2,028
12/10-28/10
  • 12/10-28/10
  • 4 total stops
  • 81h 13m total
  • Perth to Illinois
Search Deals
12/10
  • 12/10
  • 2 total stops
  • 42h 03m total
  • Perth to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($473 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($291 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Perth to Illinois 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 647,157 searches. Data last updated 16 August 2026.
Use the filters below to find and compare flights from Perth to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Thu 27/8

23:45-15:54

2 stops29h 09m

Chicago O'Hare Intl

Thu 10/9

17:50-12:25

2 stops29h 35m

$1,937

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Wed 9/9

15:50-14:20

2 stops35h 30m

Chicago O'Hare Intl

Sat 12/9

16:00-01:10

2 stops44h 10m

$2,064

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Sat 12/9

15:50-14:20

2 stops59h 30m

Chicago O'Hare Intl

Sat 19/9

16:15-14:50

2 stops57h 35m

$2,513

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 12/10

21:35-14:55

1 stop30h 20m

Chicago O'Hare Intl

Wed 28/10

11:30-20:10

1 stop43h 40m

$2,726

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 12/10

10:30-00:35

3 stops27h 05m

Chicago O'Hare Intl

Wed 28/10

18:55-14:30

2 stops30h 35m

$2,846

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 12/10

22:55-19:48

3 stops33h 53m

Chicago O'Hare Intl

Wed 28/10

15:30-21:35

2 stops41h 05m

$2,857

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Mon 5/10

10:30-00:35

3 stops27h 05m

Chicago O'Hare Intl

Wed 21/10

18:02-12:35

2 stops29h 33m

$2,864

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Tue 24/11

14:00-16:08

2 stops40h 08m

Chicago O'Hare Intl

Wed 27/1

17:53-14:30

2 stops30h 37m

$2,928

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Thu 5/11

12:25-16:05

2 stops41h 40m

Chicago O'Hare Intl

Tue 17/11

15:25-18:25

2 stops37h 00m

$2,979

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Thu 5/11

12:25-16:05

2 stops41h 40m

Chicago O'Hare Intl

Sun 15/11

17:15-20:30

2 stops37h 15m

$2,979

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Perth to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Perth with our price prediction graph.
Estimated return 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 Perth to Illinois

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

Currently, October is the cheapest month in which you can book a flight from Perth to Illinois (average of $1,394). Flying from Perth to Illinois in February is currently the most expensive (average of $2,863). 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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 16 August 2026.
Get a feel of what it's like to fly with Japan Airlines,ANA, andQantas Airways from Perth to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,905 reviews
Check prices

Comfort

8.2

Entertainment

7.8

Food

7.7

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Japan Airlines
8.3
Very Good
1,905 reviews
Japan Airlines
8.3
Very Good
1,905 reviews
Check prices

Comfort

8.2

Entertainment

7.8

Food

7.7

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
ANA
8.3
Very Good
1,298 reviews
Japan Airlines
8.3
Very Good
1,905 reviews
Check prices

Comfort

8.2

Entertainment

7.8

Food

7.7

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Qantas Airways
7.5
Good
1,083 reviews
Japan Airlines
8.3
Very Good
1,905 reviews
Check prices

Comfort

8.2

Entertainment

7.8

Food

7.7

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.
Qatar Airways
7.4
Good
3,739 reviews
Japan Airlines
8.3
Very Good
1,905 reviews
Check prices

Comfort

8.2

Entertainment

7.8

Food

7.7

Boarding

8.4

Overall

8.3

Crew

8.7

Reviews

1 / 20
4.0
Okay

Paul,June 2026

HND - DFW

When it says Japan Airlines, I expect Japan Airlines!! Not a code share with American Airlines.

Related info for your journey

Find useful and relevant information for your journey from Perth to Illinois. 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 from for flights from Perth to Illinois?

    Most people fly from Perth (PER) if they book a flight from Perth to Illinois. Perth is conveniently located just 10.2 km from Perth’s city centre.

  • How long is the flight from Perth to Illinois?

    A quick flight from Perth to Illinois can take about 29h 09m. Qantas Airways provides one of the quickest options available for as low as $1,937. Airlines will cover a distance of 17617 km. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Perth to Illinois (average of $1,394). Flying from Perth to Illinois in February is currently the most expensive (average of $2,863). 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.

Top airline flying from Perth to Illinois

Discover the top airline that operate flights from Perth to Illinois. 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 647,157 searches. Data last updated 16 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,376Average$2,810FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Perth to Illinois?

Deals for Perth to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Perth to Illinois?

Cheapflights simply makes it quick and affordable to book flights from Perth to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Perth to Illinois with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Perth to Illinois, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Perth to Illinois become cheaper?

Not ready to book yet? You can track prices for flights from Perth to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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