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Perth

$649+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PER
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,439
(Gurufare)

One-way from

$1,130
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$1,350
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. 10% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This Gurufare deal was found by Cheapflights users on 4/29. 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.
Mon 9/154:00 pmORD - PER
1 stop26h 45mCathay Pacific
Mon 9/2912:10 amPER - ORD
1 stop27h 15mCathay Pacific
Deal found 4/29$1,439
This Trip.com deal was found by Cheapflights users on 4/29. 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.
Sun 5/41:55 pmORD - PER
2 stops40h 35mMultiple Airlines
Sun 5/1111:35 pmPER - ORD
2 stops46h 10mMultiple Airlines
Deal found 4/29$1,470
This KAYAK deal was found by Cheapflights users on 4/28. 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.
Wed 10/82:20 pmORD - PER
2 stops36h 40mAir New Zealand
Fri 10/178:05 amPER - ORD
2 stops35h 05mAir New Zealand
Deal found 4/28$1,542
This StudentUniverse deal was found by Cheapflights users on 4/29. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:35 pmORD - PER
2 stops45h 20mSingapore Airlines
Mon 9/291:10 amPER - ORD
2 stops31h 38mSingapore Airlines
Deal found 4/29$1,670
This KAYAK deal was found by Cheapflights users on 4/29. 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.
Mon 9/153:07 pmORD - PER
2 stops28h 43mQantas Airways
Wed 10/16:20 amPER - ORD
2 stops27h 42mQantas Airways
Deal found 4/29$1,721
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:20 pmORD - PER
2 stops50h 25mAustrian Airlines
Wed 10/14:20 pmPER - ORD
2 stops34h 00mAustrian Airlines
Deal found 4/29$1,747
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/133:35 pmORD - PER
2 stops51h 10mLufthansa
Tue 9/309:20 amPER - ORD
2 stops40h 10mLufthansa
Deal found 4/29$1,758
This Etihad Airways deal was found by Cheapflights users on 4/29. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:55 pmORD - PER
2 stops50h 55mEtihad Airways
Sat 9/2711:15 pmPER - ORD
2 stops46h 30mEtihad Airways
Deal found 4/29$1,815
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:35 pmORD - PER
2 stops40h 55mAir Canada
Tue 9/3011:55 pmPER - ORD
3 stops32h 34mAir Canada
Deal found 4/29$1,828
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:30 amSTL - PER
2 stops47h 10mQatar Airways
Wed 5/2110:45 pmPER - STL
2 stops38h 19mQatar Airways
Deal found 4/28$1,866
This Gurufare deal was found by Cheapflights users on 4/28. 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.
Wed 5/146:52 amSTL - PER
2 stops35h 53mCathay Pacific
Tue 5/2012:10 amPER - STL
2 stops31h 23mCathay Pacific
Deal found 4/28$1,939
This Expedia deal was found by Cheapflights users on 4/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:00 amSTL - PER
2 stops46h 40mMultiple Airlines
Mon 8/43:20 pmPER - STL
2 stops45h 39mMultiple Airlines
Deal found 4/27$1,952

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 April 29, 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 9/15

4:00 pm-7:45 am

1 stop26h 45m

Perth

Mon 9/29

12:10 am-2:25 pm

1 stop27h 15m

$1,439

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 6/10

11:25 am-4:30 am

2 stops52h 05m

Perth

Tue 6/17

8:30 pm-9:40 am

2 stops50h 10m

$1,524

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 10/8

2:20 pm-4:00 pm

2 stops36h 40m

Perth

Fri 10/17

8:05 am-6:10 am

2 stops35h 05m

$1,542

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 9/16

1:35 pm-11:55 pm

2 stops45h 20m

Perth

Mon 9/29

1:10 am-7:48 pm

2 stops31h 38m

$1,670

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 9/15

3:07 pm-8:50 am

2 stops28h 43m

Perth

Wed 10/1

6:20 am-9:02 pm

2 stops27h 42m

$1,721

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 9/13

4:20 pm-7:45 am

2 stops50h 25m

Perth

Wed 10/1

4:20 pm-1:20 pm

2 stops34h 00m

$1,747

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 9/13

3:35 pm-7:45 am

2 stops51h 10m

Perth

Tue 9/30

9:20 am-12:30 pm

2 stops40h 10m

$1,758

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/17

1:55 pm-5:50 am

2 stops50h 55m

Perth

Sat 9/27

11:15 pm-8:45 am

2 stops46h 30m

$1,815

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 9/16

3:35 pm-9:30 pm

2 stops40h 55m

Perth

Tue 9/30

11:55 pm-7:29 pm

3 stops32h 34m

$1,828

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 5/14

6:30 am-6:40 pm

2 stops47h 10m

Perth

Wed 5/21

10:45 pm-12:04 am

2 stops38h 19m

$1,866

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 26 results
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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 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, February is the cheapest month in which you can book a flight from Illinois to Perth (average of $1,448). Flying from Illinois to Perth in December is currently the most expensive (average of $2,172). 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.

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

Find hourly flight availability from Illinois to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

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.

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 - 6.7 inches per month. June is typically the wettest month, when rainfall can reach 6.7 in. January is typically the driest time to visit Perth when rainfall is around 0.0 in.

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 75.2 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 53.6 F).

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 April 29, 2025.
See what other customers who have flown with ANA, Singapore Airlines and Air New Zealand from Illinois to Perth have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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
855 reviews
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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
1,292 reviews
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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
471 reviews
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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.
Austrian Airlines
7.6
Good
780 reviews
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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.
Cathay Pacific
7.5
Good
852 reviews
ANA
8.3
Very good
855 reviews

Comfort

8.2

Crew

8.7

Boarding

8.5

Food

7.6

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?

    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.

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

    To fly one-way, consider booking your trip with Qatar Airways, which is currently one of the cheapest options available, starting at $1,130. Qantas Airways flights start at $1,173 while deals on Air Canada start at $1,565 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 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, February is the cheapest month in which you can book a flight from Illinois to Perth (average of $1,448). Flying from Illinois to Perth in December is currently the most expensive (average of $2,172). 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Fremantle
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Alternative routes for Illinois to Perth

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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,191Average$1,522FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$1,305Average$1,524FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$1,421Average$1,706FlexibilityNo cancel feeOn-time81%

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