Find flights
When to book
Airlines
FAQs

Cheap flights from Illinois to Perth from $920

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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PER
27 Jan — 3 Feb1
1 adult

Cheap flight deals from Illinois to Perth

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 22 January 2025.

Round-trip from

$1,890

One-way from

$920
4/3-11/3
  • 4/3-11/3
  • 6 total stops
  • 81h 51m total
  • Illinois to Perth
Qantas Airways
  • Qantas Airways
  • 29/1
  • 2 total stops
  • 35h 58m total
  • Illinois to Perth

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 22 January 2025.

Tue 4/305:15ORD - PER
3 stops36h 30mMultiple Airlines
Tue 11/314:45PER - ORD
3 stops45h 21mMultiple Airlines
Deal found 20/1$1,890
Sun 17/818:53ORD - PER
2 stops33h 12mQantas Airways
Sun 31/810:25PER - ORD
2 stops26h 32mQantas Airways
Deal found 21/1$1,934
Fri 7/314:13ORD - PER
2 stops29h 57mAmerican Airlines
Fri 14/322:55PER - ORD
2 stops44h 30mAmerican Airlines
Deal found 21/1$1,976
Tue 4/314:40ORD - PER
1 stop42h 05mCathay Pacific
Mon 10/300:15PER - ORD
1 stop26h 45mCathay Pacific
Deal found 21/1$2,298
Mon 20/1021:00ORD - PER
2 stops37h 55mSingapore Airlines
Mon 10/1101:10PER - ORD
2 stops29h 00mSingapore Airlines
Deal found 21/1$2,638
Mon 20/1015:40ORD - PER
2 stops35h 30mAir Canada
Tue 11/1122:55PER - ORD
3 stops37h 04mAir Canada
Deal found 21/1$2,752
Sat 24/519:10STL - PER
2 stops29h 25mAir New Zealand
Sun 3/808:05PER - STL
2 stops25h 16mAir New Zealand
Deal found 22/1$3,173
Tue 4/319:05ORD - PER
1 stop33h 40mQatar Airways
Tue 11/322:45PER - ORD
1 stop29h 45mQatar Airways
Deal found 21/1$3,205
Sat 24/513:30STL - PER
3 stops37h 30mMultiple Airlines
Sun 3/808:05PER - STL
2 stops25h 16mMultiple Airlines
Deal found 22/1$3,426
Sat 24/519:10STL - PER
2 stops31h 50mUnited Airlines
Sat 2/801:10PER - STL
2 stops40h 48mUnited Airlines
Deal found 22/1$3,933

Find flights from Illinois to Perth within your budget

Customise 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 647,157 searches. Data last updated 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 4/3

05:15-07:45

3 stops36h 30m

Perth

Tue 11/3

14:45-23:06

3 stops45h 21m

$1,890

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 10/2

14:14-17:20

2 stops37h 06m

Perth

Thu 20/2

22:55-14:01

2 stops29h 06m

$1,950

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 7/3

14:13-10:10

2 stops29h 57m

Perth

Fri 14/3

22:55-06:25

2 stops44h 30m

$1,976

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 4/3

14:40-22:45

1 stop42h 05m

Perth

Mon 10/3

00:15-14:00

1 stop26h 45m

$2,298

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 4/4

06:44-18:35

2 stops46h 51m

Perth

Fri 11/4

22:45-23:59

2 stops38h 14m

$2,666

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 10/2

15:40-21:35

2 stops39h 55m

Perth

Thu 20/2

22:55-19:37

3 stops34h 42m

$2,829

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 4/3

19:00-05:25

2 stops44h 25m

Perth

Mon 10/3

01:10-18:00

2 stops29h 50m

$2,918

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 24/5

19:10-13:35

2 stops29h 25m

Perth

Sun 3/8

08:05-22:06

2 stops27h 01m

$3,173

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 4/3

19:05-18:45

1 stop33h 40m

Perth

Tue 11/3

22:45-15:30

1 stop29h 45m

$3,205

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 24/5

13:30-16:00

3 stops37h 30m

Perth

Sun 3/8

08:05-20:21

2 stops25h 16m

$3,426

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 24 results
1
2
3

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 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.

Travel insights for flights from Illinois to Perth

Get recent, data-driven insights about flights from Illinois to Perth including ideal travel times, pricing trends, and more.

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

Currently, July is the cheapest month in which you can book a flight from Illinois to Perth (average of $302). Flying from Illinois to Perth in December is currently the most expensive (average of $409). 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.

Rainfall in Perth by month

Plan your trip to Perth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Perth ranges from 0.0 - 170.0 inches per month. June is typically the wettest month, when rainfall can reach 170.0 mm. January is typically the driest time to visit Perth when rainfall is around 0.0 mm.

Temperature in Perth by month

Plan your trip to Perth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Perth, 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 24.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 12.0 C).

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 22 January 2025.
Read through reviews of airlines operating flights from Illinois to Perth, such as United Airlines, Qantas Airways and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

8.4
Very Good
852 reviews
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

8.1
Very Good
3,360 reviews
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

8.1
Very Good
1,328 reviews
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

7.9
Good
483 reviews
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

7.5
Good
3,752 reviews
8.4
Very Good
852 reviews

Boarding

8.6

Crew

8.7

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

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?

    Perth (PER) is the airport you will fly into if you book a flight from Illinois to Perth. It is only a 10.2 km journey from Perth (PER) to Perth’s city centre.

  • What are the cheapest airlines to fly from Illinois to Perth one-way?

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $920. ANA flights start at $1,202 while deals on Qatar Airways start at $1,414 one-way.

  • 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 holiday 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, July is the cheapest month in which you can book a flight from Illinois to Perth (average of $302). Flying from Illinois to Perth in December is currently the most expensive (average of $409). 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

Travelling to a place near Illinois?

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

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.

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 Illinois to Perth?

When you search for this flight from Illinois to Perth, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to Perth for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Perth from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Illinois to Perth flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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.