What is the cheapest airline that flies from Illinois to Perth?

JetBlue and American Airlines are the most popular carriers operating from Illinois to Perth

When did momondo last update prices for flights from Illinois to Perth Airport?

Prices for flights from Illinois to Perth Airport refresh daily.

How many operators does momondo search for flights from Illinois to Perth Airport?

As of April 2026, there are 2 operators available to choose from for flights from Illinois to Perth Airport.

How old do you have to be to fly from Illinois to Perth Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Perth Airport.

What documentation or ID do you need to fly to Perth Airport?

The required travel and health documents for your Perth Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Perth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$886 Cheap Flights from Illinois to Perth in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:42 pm - 5:10 am

ORD

PER

43h 28m

2 stops

5:05 pm - 11:59 pm

PER

ORD

43h 54m

2 stops

$1,487Multiple Airlines

Mon, Oct 19 - Mon, Oct 26

8:42 pm - 5:10 am

ORD

PER

43h 28m

2 stops

1:15 am - 12:59 am

PER

ORD

36h 44m

2 stops

$1,594Multiple Airlines

Fri, Oct 16 - Sat, Oct 31

8:42 pm - 5:10 am

ORD

PER

43h 28m

2 stops

1:15 am - 8:00 am

PER

ORD

43h 45m

2 stops

$1,604Multiple Airlines

Fri, Oct 16 - Sat, Oct 31

6:00 am - 5:00 pm

STL

PER

46h 00m

2 stops

10:30 am - 11:02 pm

PER

STL

25h 32m

2 stops

$1,668Qantas Airways

Tue, Aug 18 - Mon, Sep 21

5:10 pm - 12:15 pm

ORD

PER

30h 05m

2 stops

10:30 am - 11:58 pm

PER

ORD

26h 28m

2 stops

$1,675Qantas Airways

Tue, Jun 30 - Thu, Jul 30

6:02 am - 6:35 pm

STL

PER

47h 33m

2 stops

10:45 pm - 11:59 pm

PER

STL

38h 14m

2 stops

$1,739Qatar Airways

Tue, Aug 18 - Sun, Sep 20

6:02 am - 6:35 pm

STL

PER

47h 33m

2 stops

10:45 pm - 9:16 am

PER

STL

47h 31m

2 stops

$1,741Qatar Airways

Tue, Aug 18 - Mon, Sep 21

8:52 am - 12:30 pm

STL

PER

38h 38m

2 stops

11:45 pm - 3:38 pm

PER

STL

52h 53m

3 stops

$1,833United Airlines

Tue, Aug 18 - Sun, Sep 20

5:18 pm - 11:15 am

STL

PER

28h 57m

2 stops

10:30 am - 10:55 pm

PER

STL

25h 25m

2 stops

$1,861American Airlines

Mon, May 25 - Sat, Aug 8

8:52 am - 12:30 pm

STL

PER

38h 38m

2 stops

11:45 pm - 3:38 pm

PER

STL

52h 53m

3 stops

$2,026United Airlines

Tue, Aug 18 - Sun, Sep 20

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Qatar Airways flights from Illinois to Perth

Our best Qatar Airways deals on Illinois to Perth flight tickets

Qatar Airways

Aug 18

STL6:02 amLambert-St Louis

47h 33m

2 stops

PER6:35 pmPerth

Sep 20

PER10:45 pmPerth

38h 14m

2 stops

STL11:59 pmLambert-St Louis

$1,739

Qatar Airways

Aug 18

STL6:02 amLambert-St Louis

47h 33m

2 stops

PER6:35 pmPerth

Sep 21

PER10:45 pmPerth

47h 31m

2 stops

STL9:16 amLambert-St Louis

$1,741

Qatar Airways

Aug 18

STL6:02 amLambert-St Louis

47h 33m

2 stops

PER6:35 pmPerth

Sep 20

PER10:45 pmPerth

38h 14m

2 stops

STL11:59 pmLambert-St Louis

$1,808

United Airlines flights from Illinois to Perth

Our best United Airlines deals on Illinois to Perth flight tickets

United Airlines

Aug 18

STL8:52 amLambert-St Louis

38h 38m

2 stops

PER12:30 pmPerth

Sep 20

PER11:45 pmPerth

52h 53m

3 stops

STL3:38 pmLambert-St Louis

$1,833

United Airlines

Sep 23

ORD5:57 pmChicago O'Hare Intl

28h 43m

2 stops

PER11:40 amPerth

Oct 8

PER11:45 pmPerth

27h 52m

2 stops

ORD2:37 pmChicago O'Hare Intl

$1,999

United Airlines

Aug 18

STL8:52 amLambert-St Louis

38h 38m

2 stops

PER12:30 pmPerth

Sep 20

PER11:45 pmPerth

52h 53m

3 stops

STL3:38 pmLambert-St Louis

$2,026

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 10/19

8:42 pm-5:10 am

2 stops43h 28m

Perth

Mon 10/26

5:05 pm-11:59 pm

2 stops43h 54m

$1,487

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 10/16

8:42 pm-5:10 am

2 stops43h 28m

Perth

Sat 10/31

1:15 am-12:59 am

2 stops36h 44m

$1,594

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 10/16

8:42 pm-5:10 am

2 stops43h 28m

Perth

Sat 10/31

1:15 am-8:00 am

2 stops43h 45m

$1,604

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 8/18

6:00 am-5:00 pm

2 stops46h 00m

Perth

Mon 9/21

10:30 am-11:02 pm

2 stops25h 32m

$1,668

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 6/30

5:10 pm-12:15 pm

2 stops30h 05m

Perth

Thu 7/30

10:30 am-11:58 pm

2 stops26h 28m

$1,675

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 8/18

6:02 am-6:35 pm

2 stops47h 33m

Perth

Sun 9/20

10:45 pm-11:59 pm

2 stops38h 14m

$1,739

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 8/18

6:02 am-6:35 pm

2 stops47h 33m

Perth

Mon 9/21

10:45 pm-9:16 am

2 stops47h 31m

$1,741

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 8/18

8:52 am-12:30 pm

2 stops38h 38m

Perth

Sun 9/20

11:45 pm-3:38 pm

3 stops52h 53m

$1,833

Quickest round-trip

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 5/25

5:18 pm-11:15 am

2 stops28h 57m

Perth

Sat 8/8

10:30 am-10:55 pm

2 stops25h 25m

$1,861

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 8/18

8:52 am-12:30 pm

2 stops38h 38m

Perth

Sun 9/20

11:45 pm-3:38 pm

3 stops52h 53m

$2,026

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Perth?

In general, December is the cheapest month to fly from Illinois to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,139. If you are unable to visit Perth during the month of December, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $1,229.

Can stopping save me money on Illinois to Perth flights?

You could potentially save up to 68% on your flight if you consider stops on a Illinois to Perth flight.

Cheap Illinois to Perth flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Perth

Fastest flight time	29h 40m
Direct flights	None

The fastest flight from Illinois to Perth takes 29h 40m

There are no direct flights from Illinois to Perth. There are no popular flight routes from Illinois to Perth.

Search flight deals

Frequently asked questions about flying from Illinois to Perth

When did momondo last update prices for flights from Illinois to Perth Airport?
Prices for flights from Illinois to Perth Airport refresh daily.
How many operators does momondo search for flights from Illinois to Perth Airport?
As of April 2026, there are 2 operators available to choose from for flights from Illinois to Perth Airport.
How old do you have to be to fly from Illinois to Perth Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Perth Airport.
What documentation or ID do you need to fly to Perth Airport?
The required travel and health documents for your Perth Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Perth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Perth

Compare and see reviews for airlines that fly from Illinois to Perth with momondo

Airline	Rating	Free Cancellation	Price
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,725 reviews		Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,418	Free Cancellation	Rating 7.6 1,302 reviews		Search Cathay Pacific flights

Mandurah

Rottnest Island

Fremantle

Scarborough

Waikiki

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Perth?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Perth from Illinois.

Can I find flights from Illinois to Perth with flexible booking policies on momondo?

All flight searches from Illinois to Perth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Perth?

Once all potential Illinois to Perth flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Perth right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Perth now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Perth and let you know when they change.