How long is the flight from Illinois to Perth?

There are many flights that can get you from Illinois to Perth in 33h 55m. Fly via Qatar Airways to get the fastest option. Illinois and Perth are separated by a distance of 17617 km.

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.

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).

What is the cheapest time of day to fly from IL to PER?

When flying from Illinois to Perth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$740+ Cheap Flights from Illinois to Perth

Cheap flight deals from Illinois to Perth

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 25 September 2026.

Mon 9/1122:45 -

1 stop42h 35m

Mon 16/1108:35 -

1 stop22h 20m

Deal found 25/9$1,745

Mon 9/1122:45 -

1 stop42h 35m

Mon 16/1108:35 -

2 stops34h 27m

Deal found 25/9$1,871

Thu 5/1121:15 -

3 stops40h 25m

Thu 12/1120:50 -

3 stops51h 10m

Deal found 21/9$1,935

Mon 9/1122:45 -

1 stop42h 35m

Mon 23/1108:35 -

1 stop22h 20m

Deal found 21/9$2,026

Sat 31/1010:25 -

2 stops41h 25m

Tue 17/1118:50 -

2 stops42h 09m

Deal found 24/9$2,177

Sun 8/1118:50 -

1 stop33h 55m

Sun 15/1113:20 -

2 stops39h 10m

Deal found 23/9$2,187

Mon 9/1115:30 -

2 stops34h 25m

Mon 23/1115:15 -

2 stops42h 44m

Deal found 21/9$2,262

Sat 7/1106:29 -

2 stops34h 51m

Sat 14/1108:35 -

2 stops35h 24m

Deal found 23/9$2,275

Mon 9/1118:50 -

2 stops37h 10m

Mon 23/1122:45 -

1 stop29h 45m

Deal found 21/9$2,284

Find flight deals from Illinois to Perth

Round-trip from	$1,745
One-way from	$740

Philippine Airlines
9/11-16/11
2 total stops
64h 55m total
Illinois to Perth

Search Deals

24/2-31/12
2 total stops
44h 35m total
Illinois to Perth

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Tue 9/3

13:10-01:20

2 stops46h 10m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$742

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Fri 6/11

14:10-04:40

2 stops48h 30m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$981

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Wed 30/9

19:03-07:15

2 stops47h 12m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,075

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Mon 22/2

22:45-07:20

1 stop42h 35m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,264

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Tue 9/3

14:10-22:55

1 stop42h 45m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,358

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Thu 25/2

14:10-22:55

1 stop42h 45m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,387

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Mon 22/2

16:20-07:55

2 stops49h 35m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,408

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Wed 30/12

14:10-16:25

2 stops36h 15m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,412

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Sat 27/2

14:10-22:55

1 stop42h 45m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,471

Fastest return journey

ChicagoPerth

ORD Chicago O'Hare Intl - PER Perth

ORDPER

Chicago O'Hare Intl

Sun 21/2

14:10-06:55

1 stop26h 45m

Perth

Wed 31/12

00:00-10:00

Nonstop0h 00m

$1,471

Flights are sorted by cheapest return flights first.

Deals found on 23/9

Showing 1-10 of 18 resultsSorted by cheapest first

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.

ORD-PER

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 Illinois to Perth

USIL-PER

ORD-PER

How much does it cost for a return flight from Illinois to Perth?

Airfare is below average for this route at the moment.

Illinois to Perth flights typically cost between $2,733 and $3,036 in November.
The cheapest return price found within the last 5 days was $1,745 on Philippine Airlines (9 Nov–16 Nov).

Related info for your journey

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.
How long is the flight from Illinois to Perth?
There are many flights that can get you from Illinois to Perth in 33h 55m. Fly via Qatar Airways to get the fastest option. Illinois and Perth are separated by a distance of 17617 km.
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.

See more FAQs

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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.

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Cheap flights from Illinois to Perth from $740

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Perth

Cheapest flights from Illinois to PerthExplore 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 25 September 2026.

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 25 September 2026.

Best flights from Illinois to PerthDiscover carefully curated flight deals from Illinois to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Discover carefully curated flight deals from Illinois to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Last-minute flights from Illinois to PerthDiscover last-minute flight deals from Illinois to Perth. Data last updated 25 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Perth. Data last updated 25 September 2026 and is based on user searches.

One-way flights from Illinois to PerthSearch for one-way flight options from Illinois to Perth. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.

Search for one-way flight options from Illinois to Perth. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.

Find flight deals from Illinois to Perth

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Use the filters below to find and compare flights from Illinois to Perth that are best for you.

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.

Cheapflights Insights

How much does it cost for a return flight from Illinois to Perth?

Airfare is below average for this route at the moment.

Illinois to Perth flights typically cost between $2,733 and $3,036 in November.The cheapest return price found within the last 5 days was $1,745 on Philippine Airlines (9 Nov–16 Nov).

Related info for your journey

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

How long is the flight from Illinois to Perth?

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

How can I find direct flights from Illinois to Perth?

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

Travelling to a place near Perth?

Browse thousands of different options on Cheapflights for your next trip

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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.

Complete your trip

Complete your trip to Perth by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Western Australia

Book a non-stop flight to one of these other cities located in Western Australia.

Search flights from Illinois to Perth by cabin class

Find flights from Illinois to Perth, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Perth flights

Browse other Illinois and Perth flight options. Last updated on 25 September 2026.

Other flights to Perth

Explore flights to Perth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 25 September 2026.

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

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

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

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

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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 25 September 2026.

Best flights from Illinois to Perth
Discover carefully curated flight deals from Illinois to Perth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Last-minute flights from Illinois to Perth
Discover last-minute flight deals from Illinois to Perth. Data last updated 25 September 2026 and is based on user searches.

One-way flights from Illinois to Perth
Search for one-way flight options from Illinois to Perth. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.

Illinois to Perth flights typically cost between $2,733 and $3,036 in November.
The cheapest return price found within the last 5 days was $1,745 on Philippine Airlines (9 Nov–16 Nov).