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

Lufthansa and Qatar Airways 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 July 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.

$619 Cheap Flights from Illinois to Perth in 2026

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.

8:10 pm - 4:20 am

ORD

PER

43h 10m

2 stops

6:25 pm - 9:40 am

PER

ORD

52h 15m

2 stops

$1,229Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

4:00 pm - 4:20 am

ORD

PER

47h 20m

2 stops

6:25 pm - 1:55 pm

PER

ORD

56h 30m

2 stops

$1,257Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

8:10 pm - 4:20 am

ORD

PER

43h 10m

2 stops

6:25 pm - 9:40 am

PER

ORD

52h 15m

2 stops

$1,266Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

1:45 pm - 12:05 pm

ORD

PER

33h 20m

2 stops

10:30 am - 11:30 pm

PER

ORD

26h 00m

2 stops

$1,288Qantas Airways

Wed, Sep 9 - Wed, Sep 16

7:20 pm - 6:35 pm

ORD

PER

34h 15m

1 stop

1:45 pm - 3:05 pm

PER

ORD

38h 20m

2 stops

$1,369Qatar Airways

Tue, Sep 8 - Tue, Sep 15

7:20 pm - 6:35 pm

ORD

PER

34h 15m

1 stop

1:45 pm - 3:05 pm

PER

ORD

38h 20m

2 stops

$1,370Qatar Airways

Mon, Sep 7 - Mon, Sep 14

7:20 pm - 6:35 pm

ORD

PER

34h 15m

1 stop

1:45 pm - 3:05 pm

PER

ORD

38h 20m

2 stops

$1,371Qatar Airways

Tue, Sep 8 - Tue, Sep 15

11:01 am - 6:50 am

STL

PER

30h 49m

2 stops

12:10 am - 11:43 pm

PER

STL

36h 33m

2 stops

$1,718Cathay Pacific

Fri, Sep 11 - Thu, Sep 17

2:35 pm - 6:55 am

ORD

PER

26h 20m

1 stop

12:25 am - 12:55 pm

PER

ORD

26h 30m

1 stop

$2,179Cathay Pacific

Thu, Dec 24 - Tue, Dec 29

2:35 pm - 10:55 pm

ORD

PER

42h 20m

1 stop

8:30 am - 12:55 pm

PER

ORD

42h 25m

1 stop

$2,260Cathay Pacific

Fri, Dec 11 - Sun, Dec 20

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Cathay Pacific flights from Illinois to Perth

Our best Cathay Pacific deals on Illinois to Perth flight tickets

Cathay Pacific

Sep 11

STL11:01 amLambert-St Louis

30h 49m

2 stops

PER6:50 amPerth

Sep 17

PER12:10 amPerth

36h 33m

2 stops

STL11:43 pmLambert-St Louis

$1,718

Cathay Pacific

Aug 5

ORD4:00 pmChicago O'Hare Intl

25h 50m

1 stop

PER6:50 amPerth

Aug 11

PER12:10 amPerth

27h 10m

1 stop

ORD2:20 pmChicago O'Hare Intl

$2,010

Air Canada flights from Illinois to Perth

Our best Air Canada deals on Illinois to Perth flight tickets

Air Canada

Sep 11

STL1:36 pmLambert-St Louis

34h 19m

3 stops

PER12:55 pmPerth

Sep 18

PER11:55 pmPerth

33h 05m

3 stops

STL8:00 pmLambert-St Louis

$2,061

Air Canada

Aug 5

ORD2:15 pmChicago O'Hare Intl

37h 45m

3 stops

PER5:00 pmPerth

Aug 12

PER3:30 pmPerth

36h 06m

2 stops

ORD2:36 pmChicago O'Hare Intl

$2,364

Air Canada

Aug 5

ORD12:55 pmChicago O'Hare Intl

37h 50m

3 stops

PER3:45 pmPerth

Aug 12

PER5:15 pmPerth

34h 21m

2 stops

ORD2:36 pmChicago O'Hare Intl

$2,365

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

8:10 pm-4:20 am

2 stops43h 10m

Perth

Wed 9/16

6:25 pm-9:40 am

2 stops52h 15m

$1,229

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

4:00 pm-4:20 am

2 stops47h 20m

Perth

Wed 9/16

6:25 pm-1:55 pm

2 stops56h 30m

$1,257

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

8:10 pm-4:20 am

2 stops43h 10m

Perth

Wed 9/16

6:25 pm-9:40 am

2 stops52h 15m

$1,266

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

1:45 pm-12:05 pm

2 stops33h 20m

Perth

Wed 9/16

10:30 am-11:30 pm

2 stops26h 00m

$1,288

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 9/8

7:20 pm-6:35 pm

1 stop34h 15m

Perth

Tue 9/15

1:45 pm-3:05 pm

2 stops38h 20m

$1,369

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 9/7

7:20 pm-6:35 pm

1 stop34h 15m

Perth

Mon 9/14

1:45 pm-3:05 pm

2 stops38h 20m

$1,370

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 9/8

7:20 pm-6:35 pm

1 stop34h 15m

Perth

Tue 9/15

1:45 pm-3:05 pm

2 stops38h 20m

$1,371

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 9/11

11:01 am-6:50 am

2 stops30h 49m

Perth

Thu 9/17

12:10 am-11:43 pm

2 stops36h 33m

$1,718

Quickest round-trip

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Thu 12/24

2:35 pm-6:55 am

1 stop26h 20m

Perth

Tue 12/29

12:25 am-12:55 pm

1 stop26h 30m

$2,179

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Fri 12/11

2:35 pm-10:55 pm

1 stop42h 20m

Perth

Sun 12/20

8:30 am-12:55 pm

1 stop42h 25m

$2,260

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, May 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 $0. If you are unable to visit Perth during the month of May, then departing from Illinois during the month February is also very affordable. Most momondo users find prices during this month for around $0.

Can stopping save me money on Illinois to Perth flights?

You could potentially save up to 45% 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	31h 25m
Direct flights	None

The fastest flight from Illinois to Perth takes 31h 25m

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 July 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 $1,298	Free Cancellation	Rating 7.3 3,743 reviews		Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,433 reviews		Search Cathay Pacific flights

Rottnest Island

Fremantle

Mandurah

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.