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Cheap flights from Illinois to Perth from $891

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Perth departing on 24/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:10 - 04:20
ORD
-
PER
43h 10m
2 stops
Multiple Airlines Logo
18:25 - 09:40
PER
-
ORD
52h 15m
2 stops
$1,768Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
16:00 - 04:20
ORD
-
PER
47h 20m
2 stops
Multiple Airlines Logo
18:25 - 13:55
PER
-
ORD
56h 30m
2 stops
$1,809Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
20:10 - 04:20
ORD
-
PER
43h 10m
2 stops
Multiple Airlines Logo
18:25 - 09:40
PER
-
ORD
52h 15m
2 stops
$1,822Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Qantas Airways Logo
13:45 - 12:05
ORD
-
PER
33h 20m
2 stops
Qantas Airways Logo
10:30 - 23:30
PER
-
ORD
26h 00m
2 stops
$1,853Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
12:30 - 14:05
ORD
-
PER
36h 35m
2 stops
Multiple Airlines Logo
22:55 - 09:30
PER
-
ORD
47h 35m
2 stops
$1,914Multiple Airlines
Mon, 17 Aug - Tue, 1 Sep
Qantas Airways Logo
13:45 - 12:05
ORD
-
PER
33h 20m
2 stops
Qantas Airways Logo
10:30 - 23:30
PER
-
ORD
26h 00m
2 stops
$1,917Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Qantas Airways Logo
19:00 - 13:35
ORD
-
PER
29h 35m
2 stops
Qantas Airways Logo
10:30 - 23:30
PER
-
ORD
26h 00m
2 stops
$1,930Qantas Airways
Tue, 8 Sep - Tue, 15 Sep
Qantas Airways Logo
17:10 - 13:35
STL
-
PER
31h 25m
2 stops
Qantas Airways Logo
10:30 - 23:30
PER
-
STL
26h 00m
2 stops
$1,931Qantas Airways
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
19:00 - 13:35
ORD
-
PER
29h 35m
2 stops
Multiple Airlines Logo
10:30 - 23:30
PER
-
ORD
26h 00m
2 stops
$1,935Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Qantas Airways Logo
18:50 - 13:35
ORD
-
PER
29h 45m
2 stops
Qantas Airways Logo
10:30 - 23:30
PER
-
ORD
26h 00m
2 stops
$1,938Qantas Airways
Wed, 9 Sep - Wed, 16 Sep

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Air Canada flights from Illinois to Perth

Our best Air Canada deals on Illinois to Perth flight tickets
Air Canada
12 Sept
STL14:40Lambert-St Louis
37h 20m
3 stops
PER17:00Perth
19 Sept
PER13:15Perth
44h 05m
3 stops
STL20:20Lambert-St Louis
$2,494
Air Canada
28 Oct
STL16:05Lambert-St Louis
63h 15m
3 stops
PER20:20Perth
1 Nov
PER22:55Perth
54h 31m
3 stops
STL15:26Lambert-St Louis
$2,894
Air Canada
11 Sept
STL13:36Lambert-St Louis
34h 19m
3 stops
PER12:55Perth
18 Sept
PER23:55Perth
33h 05m
3 stops
STL20:00Lambert-St Louis
$2,966

Air New Zealand flights from Illinois to Perth

Our best Air New Zealand deals on Illinois to Perth flight tickets
Air New Zealand
12 Sept
STL15:13Lambert-St Louis
38h 57m
3 stops
PER19:10Perth
19 Sept
PER16:25Perth
38h 34m
2 stops
STL17:59Lambert-St Louis
$3,190
Air New Zealand
5 Aug
ORD16:05Chicago O'Hare Intl
34h 55m
2 stops
PER16:00Perth
12 Aug
PER09:05Perth
42h 31m
2 stops
ORD14:36Chicago O'Hare Intl
$3,358

momondo Fare Finder

 
Customise 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, momondo users made 78,305 searches. Data last updated 29 July 2026.
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

Cheapest return flight

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

20:10-04:20

2 stops43h 10m

Perth

Wed 16/9

18:25-09:40

2 stops52h 15m

$1,768

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

16:00-04:20

2 stops47h 20m

Perth

Wed 16/9

18:25-13:55

2 stops56h 30m

$1,809

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

20:10-04:20

2 stops43h 10m

Perth

Wed 16/9

18:25-09:40

2 stops52h 15m

$1,822

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

13:45-12:05

2 stops33h 20m

Perth

Wed 16/9

10:30-23:30

2 stops26h 00m

$1,853

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 17/8

12:30-14:05

2 stops36h 35m

Perth

Tue 1/9

22:55-09:30

2 stops47h 35m

$1,914

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

13:45-12:05

2 stops33h 20m

Perth

Wed 16/9

10:30-23:30

2 stops26h 00m

$1,917
Fastest return journey

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 8/9

19:00-13:35

2 stops29h 35m

Perth

Tue 15/9

10:30-23:30

2 stops26h 00m

$1,930

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Wed 9/9

17:10-13:35

2 stops31h 25m

Perth

Wed 16/9

10:30-23:30

2 stops26h 00m

$1,931

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 8/9

19:00-13:35

2 stops29h 35m

Perth

Tue 15/9

10:30-23:30

2 stops26h 00m

$1,935

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Wed 9/9

18:50-13:35

2 stops29h 45m

Perth

Wed 16/9

10:30-23:30

2 stops26h 00m

$1,938

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Perth from

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

What is the cheapest month to fly to Perth?

The month of May is, on average, the cheapest month to fly to Perth from Illinois, with most prices found around $0. If you’re not able to fly to Perth in May, then February is your next best option. Flight prices from Illinois to Perth during February average around $0.

Can stopping save me money on Illinois to Perth flights?

You could potentially save up to 14% 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

30h 37m

Direct flights

None
The fastest flight from Illinois to Perth takes 30h 37m
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 were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Perth Airport.

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

    The necessary travel and health documents for your Perth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Mandurah
Fremantle
Scarborough
Rottnest Island

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Perth. momondo saves you time and could save you money on your trip.

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?

momondo provides multiple filters to help you find the best flight to Perth from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Illinois to Perth flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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