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Perth

$843+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PER
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,009
(CheapTickets)

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
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($59 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 17, 2025.

This CheapTickets deal was found by Cheapflights users on 4/17. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:00 pmORD - PER
2 stops39h 40mMultiple Airlines
Tue 5/209:55 pmPER - ORD
2 stops53h 30mMultiple Airlines
Deal found 4/17$1,050
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:00 pmORD - PER
1 stop26h 45mCathay Pacific
Mon 5/1912:10 amPER - ORD
1 stop27h 15mCathay Pacific
Deal found 4/17$1,423
This Orbitz deal was found by Cheapflights users on 4/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:50 pmORD - PER
2 stops39h 05mSingapore Airlines
Tue 12/21:10 amPER - ORD
2 stops29h 09mSingapore Airlines
Deal found 4/17$1,580
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/229:05 pmORD - PER
2 stops53h 50mAir New Zealand
Sat 12/66:50 pmPER - ORD
2 stops38h 04mAir New Zealand
Deal found 4/17$1,588
This KAYAK deal was found by Cheapflights users on 4/17. 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 12/12:25 pmORD - PER
2 stops36h 55mQantas Airways
Wed 12/315:25 amPER - ORD
2 stops26h 06mQantas Airways
Deal found 4/17$1,710
This FlightHub deal was found by Cheapflights users on 4/17. 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 4/17$1,871
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/244:48 pmORD - PER
2 stops32h 52mUnited Airlines
Tue 7/111:45 pmPER - ORD
2 stops36h 28mUnited Airlines
Deal found 4/17$1,938
This Gurufare deal was found by Cheapflights users on 4/17. 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 4/17$1,939
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:05 pmSTL - PER
2 stops33h 00mQantas Airways
Wed 8/610:30 amPER - STL
2 stops25h 27mQantas Airways
Deal found 4/17$1,987
This Trip.com deal was found by Cheapflights users on 4/17. 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.
Wed 11/196:55 pmORD - PER
1 stop27h 05mQatar Airways
Wed 12/310:45 pmPER - ORD
1 stop29h 45mQatar Airways
Deal found 4/17$1,999
This KAYAK deal was found by Cheapflights users on 4/16. 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.
Sat 10/256:30 pmORD - PER
2 stops37h 00mANA
Mon 12/19:55 pmPER - ORD
1 stop29h 55mANA
Deal found 4/16$2,114
This Air New Zealand deal was found by Cheapflights users on 4/17. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/289:50 amSTL - PER
3 stops41h 10mMultiple Airlines
Wed 8/67:50 pmPER - STL
2 stops39h 25mMultiple Airlines
Deal found 4/17$2,282

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 17, 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 5/5

4:00 pm-8:40 pm

2 stops39h 40m

Perth

Tue 5/20

9:55 pm-2:25 pm

2 stops53h 30m

$1,050

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 5/5

4:00 pm-7:45 am

1 stop26h 45m

Perth

Mon 5/19

12:10 am-2:25 pm

1 stop27h 15m

$1,423

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 5/5

6:58 pm-5:10 am

2 stops45h 12m

Perth

Mon 5/19

1:10 am-6:59 pm

2 stops30h 49m

$1,751

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 6/1

5:38 pm-11:15 am

2 stops28h 37m

Perth

Sun 6/8

6:20 am-8:54 pm

2 stops27h 34m

$1,862

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

$1,871

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 6/24

4:48 pm-2:40 pm

2 stops32h 52m

Perth

Tue 7/1

11:45 pm-11:13 pm

2 stops36h 28m

$1,938

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 5/14

6:52 am-7:45 am

2 stops35h 53m

Perth

Tue 5/20

12:10 am-6:33 pm

2 stops31h 23m

$1,939

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 5/28

7:05 pm-5:05 pm

2 stops33h 00m

Perth

Wed 8/6

10:30 am-10:57 pm

2 stops25h 27m

$1,987

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 5/5

7:20 pm-6:40 pm

1 stop34h 20m

Perth

Tue 5/20

10:45 pm-3:05 pm

1 stop29h 20m

$2,039

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 5/28

9:50 am-4:00 pm

3 stops41h 10m

Perth

Wed 8/6

7:50 pm-10:15 pm

2 stops39h 25m

$2,282

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 26 results
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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 $1,447). 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 17, 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 17, 2025.
See what other customers who have flown with ANA, Singapore Airlines and Emirates 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
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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
844 reviews
ANA
8.3
Very good
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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
1,288 reviews
ANA
8.3
Very good
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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
3,200 reviews
ANA
8.3
Very good
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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
467 reviews
ANA
8.3
Very good
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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
775 reviews
ANA
8.3
Very good
844 reviews

Boarding

8.5

Crew

8.7

Food

7.6

Entertainment

7.9

Comfort

8.1

Overall

8.3

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 Qantas Airways, which is currently one of the cheapest options available, starting at $1,055. Etihad Airways flights start at $1,118 while deals on United Airlines start at $1,186 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 $1,447). 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
Rottnest Island
Scarborough

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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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,191Average$1,463FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$1,305Average$1,517FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$1,421Average$1,706FlexibilityNo cancel feeOn-time81%

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