$597+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Perth with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 12, 2025.
Round-trip from | $1,246 (CheapTickets) |
|---|---|
One-way from | $597 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,255 |
Find 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 June 12, 2025.
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 June 12, 2025.
This CheapTickets deal was found by Cheapflights users on 6/12. 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.
This oojo deal was found by Cheapflights users on 6/10. 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.
This oojo deal was found by Cheapflights users on 6/11. 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.
This Gurufare deal was found by Cheapflights users on 6/11. 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.
This Gurufare deal was found by Cheapflights users on 6/11. 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.
This Expedia deal was found by Cheapflights users on 6/11. 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.
This oojo deal was found by Cheapflights users on 6/10. 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.
This Air Canada deal was found by Cheapflights users on 6/12. 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.
This Qantas Airways deal was found by Cheapflights users on 6/12. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/10. 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.
This oojo deal was found by Cheapflights users on 6/10. 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.
This Qantas Airways deal was found by Cheapflights users on 6/10. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 June 12, 2025.
Use the filters below to find and compare flights from Illinois to Perth that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Sun 7/27
5:45 pm-4:30 am
2 stops45h 45m
Perth
Sun 8/3
5:10 am-2:55 pm
2 stops46h 45m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Sat 9/6
7:20 pm-11:55 am
1 stop27h 35m
Perth
Sat 9/27
10:45 pm-3:05 pm
1 stop29h 20m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Sat 7/26
9:07 pm-4:00 pm
2 stops53h 53m
Perth
Sat 8/2
7:50 pm-10:59 pm
2 stops40h 09m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Sat 9/6
8:50 am-7:25 am
2 stops33h 35m
Perth
Sat 9/27
8:45 am-12:15 pm
2 stops40h 30m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Sat 9/6
4:00 pm-7:45 am
1 stop26h 45m
Perth
Fri 9/26
12:10 am-2:25 pm
1 stop27h 15m
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 7/9
7:38 pm-5:05 pm
2 stops32h 27m
Perth
Wed 7/16
10:30 am-11:30 pm
2 stops26h 00m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Thu 7/24
6:45 pm-1:35 pm
2 stops29h 50m
Perth
Thu 7/31
10:30 am-11:43 pm
2 stops26h 13m
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 7/9
5:41 pm-2:40 pm
2 stops31h 59m
Perth
Wed 7/16
11:55 pm-4:45 pm
3 stops29h 50m
ChicagoPerth
ORD - PER
ORDPER
Chicago O'Hare Intl
Fri 7/25
4:50 pm-11:40 am
2 stops29h 50m
Perth
Fri 8/1
11:45 pm-5:04 pm
2 stops30h 19m
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 7/9
7:23 am-7:45 am
2 stops35h 22m
Perth
Tue 7/15
12:10 am-11:30 pm
2 stops36h 20m
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
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 $1,456). 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 June 12, 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 June 12, 2025.
See what other customers who have flown with Air New Zealand, Cathay Pacific and Qantas Airways from Illinois to Perth have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
Anonymous,May 2025
AKL - SFO
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.
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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.
Top 2 airlines flying from Illinois to Perth
Discover the top 2 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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,191 | Average$1,522 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,468 | Average$1,543 | FlexibilityNo cancel fee | On-time72% |