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Cheap flights from Illinois to Perth from $1,138

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PER
27 Apr — 4 May1
1 adult

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 22 April 2025.

Round-trip from

$1,612

One-way from

$1,138

Popular in

December

Cheapest in

February

Average price

$2,104
8/9-22/9
  • 8/9-22/9
  • 4 total stops
  • 99h 25m total
  • Illinois to Perth
Search Deals
22/5
  • 22/5
  • 3 total stops
  • 49h 30m total
  • Illinois to Perth
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($423 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($130 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 2025.

Mon 8/912:10ORD - PER
2 stops43h 10mMultiple Airlines
Mon 22/920:30PER - ORD
2 stops56h 15mMultiple Airlines
Deal found 21/4$1,612
Wed 19/1109:50ORD - PER
2 stops36h 10mQantas Airways
Mon 8/1217:20PER - ORD
2 stops34h 55mQantas Airways
Deal found 22/4$1,987
Mon 8/916:00ORD - PER
1 stop26h 45mCathay Pacific
Sun 21/900:10PER - ORD
1 stop27h 15mCathay Pacific
Deal found 21/4$2,141
Tue 29/716:07ORD - PER
2 stops42h 33mAir New Zealand
Tue 12/819:50PER - ORD
2 stops40h 09mAir New Zealand
Deal found 21/4$2,381
Mon 1/906:30STL - PER
2 stops40h 25mMultiple Airlines
Mon 8/922:45PER - STL
2 stops38h 14mMultiple Airlines
Deal found 20/4$2,396
Thu 9/1007:00STL - PER
2 stops46h 40mQatar Airways
Fri 17/1022:45PER - STL
2 stops38h 11mQatar Airways
Deal found 20/4$2,475
Mon 1/918:10STL - PER
2 stops39h 30mCathay Pacific
Sun 7/900:10PER - STL
2 stops35h 17mCathay Pacific
Deal found 20/4$2,618
Mon 1/916:00STL - PER
3 stops58h 45mAir Canada
Mon 8/923:55PER - STL
3 stops52h 23mAir Canada
Deal found 20/4$3,005
Mon 8/912:00ORD - PER
3 stops38h 45mAir Canada
Mon 22/923:55PER - ORD
3 stops32h 34mAir Canada
Deal found 21/4$3,069
Tue 25/1118:55ORD - PER
1 stop27h 05mQatar Airways
Tue 9/1222:45PER - ORD
1 stop29h 45mQatar Airways
Deal found 22/4$3,116
Mon 2/619:19STL - PER
2 stops32h 46mQantas Airways
Sun 3/806:20PER - STL
2 stops26h 11mQantas Airways
Deal found 21/4$3,134
Thu 9/1008:27STL - PER
2 stops50h 13mAir New Zealand
Fri 17/1013:35PER - STL
3 stops66h 29mAir New Zealand
Deal found 20/4$3,158

Cheapflights Fare Finder

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 April 2025.
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

Mon 8/9

12:10-20:20

2 stops43h 10m

Perth

Mon 22/9

20:30-15:45

2 stops56h 15m

$1,612

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 8/9

16:00-07:45

1 stop26h 45m

Perth

Sun 21/9

00:10-14:25

1 stop27h 15m

$2,141

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 29/7

16:50-23:40

2 stops41h 50m

Perth

Tue 12/8

19:50-22:59

2 stops40h 09m

$2,378

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 1/9

06:30-11:55

2 stops40h 25m

Perth

Mon 8/9

22:45-23:59

2 stops38h 14m

$2,396

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 9/10

07:00-18:40

2 stops46h 40m

Perth

Fri 17/10

22:45-23:56

2 stops38h 11m

$2,475

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 1/9

18:10-22:40

2 stops39h 30m

Perth

Sun 7/9

00:10-22:27

2 stops35h 17m

$2,618

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 20/5

13:33-11:15

2 stops32h 42m

Perth

Tue 27/5

23:55-17:26

2 stops30h 31m

$2,904

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 1/9

16:00-15:45

3 stops58h 45m

Perth

Mon 8/9

23:55-15:18

3 stops52h 23m

$3,005

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 8/9

12:00-15:45

3 stops38h 45m

Perth

Mon 22/9

23:55-19:29

3 stops32h 34m

$3,069

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 2/6

19:19-17:05

2 stops32h 46m

Perth

Sun 3/8

06:20-19:31

2 stops26h 11m

$3,134

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 25 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.

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, February is the cheapest month in which you can book a flight from Illinois to Perth (average of $298). 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 April 2025.
Read through reviews of airlines operating flights from Illinois to Perth, such as ANA, Singapore Airlines and Emirates. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very Good
847 reviews
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Singapore Airlines
8.1
Very Good
1,290 reviews
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Emirates
8.0
Very Good
3,205 reviews
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Air New Zealand
8.0
Very Good
469 reviews
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Finnair
7.6
Good
1,272 reviews
ANA
8.3
Very Good
847 reviews
Check prices

Food

7.6

Comfort

8.2

Boarding

8.5

Crew

8.7

Overall

8.3

Entertainment

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

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 Cathay Pacific, which is currently one of the cheapest options available, starting at $1,499. Qantas Airways flights start at $1,610 while deals on ANA start at $1,861 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, February is the cheapest month in which you can book a flight from Illinois to Perth (average of $298). 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
Scarborough
Fremantle
Rottnest Island

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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.

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