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Cheap flights from Illinois to Perth from $714

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 21/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 - 17:10
ORD
-
PER
32h 00m
2 stops
Multiple Airlines Logo
05:35 - 09:40
PER
-
ORD
41h 05m
2 stops
$1,936Multiple Airlines
Sun, 26 Apr - Fri, 8 May
Multiple Airlines Logo
20:10 - 01:15
ORD
-
PER
40h 05m
2 stops
Multiple Airlines Logo
20:30 - 09:40
PER
-
ORD
50h 10m
2 stops
$2,029Multiple Airlines
Sun, 19 Apr - Sun, 21 Jun
Multiple Airlines Logo
14:00 - 04:20
ORD
-
PER
49h 20m
2 stops
Multiple Airlines Logo
18:25 - 08:35
PER
-
ORD
51h 10m
2 stops
$2,074Multiple Airlines
Mon, 30 Mar - Mon, 6 Apr
Air New Zealand Logo
14:05 - 16:00
ORD
-
PER
36h 55m
2 stops
Air New Zealand Logo
19:50 - 21:31
PER
-
ORD
38h 41m
2 stops
$2,083Air New Zealand
Sun, 19 Apr - Sun, 26 Apr
Air Canada Logo
15:40 - 15:45
ORD
-
PER
35h 05m
2 stops
Air Canada Logo
22:40 - 14:45
PER
-
ORD
29h 05m
2 stops
$2,104Air Canada
Mon, 20 Apr - Mon, 4 May
Air Canada Logo
14:00 - 15:45
ORD
-
PER
36h 45m
3 stops
Air Canada Logo
22:40 - 14:45
PER
-
ORD
29h 05m
2 stops
$2,114Air Canada
Mon, 20 Apr - Mon, 4 May
Air Canada Logo
09:50 - 15:45
ORD
-
PER
40h 55m
3 stops
Air Canada Logo
23:55 - 19:25
PER
-
ORD
32h 30m
3 stops
$2,132Air Canada
Mon, 20 Apr - Mon, 4 May
Air New Zealand Logo
21:35 - 16:00
ORD
-
PER
53h 25m
2 stops
Air New Zealand Logo
19:50 - 23:15
PER
-
ORD
40h 25m
2 stops
$2,209Air New Zealand
Sat, 18 Apr - Sat, 25 Apr
Qantas Airways Logo
16:13 - 08:50
STL
-
PER
27h 37m
2 stops
Qantas Airways Logo
23:55 - 23:57
PER
-
STL
37h 02m
2 stops
$2,274Qantas Airways
Mon, 30 Mar - Mon, 6 Apr
Qantas Airways Logo
13:34 - 12:35
STL
-
PER
34h 01m
3 stops
Qantas Airways Logo
23:55 - 23:57
PER
-
STL
37h 02m
2 stops
$3,028Qantas Airways
Mon, 30 Mar - Mon, 6 Apr

Air New Zealand flights from Illinois to Perth

Our best Air New Zealand deals on Illinois to Perth flight tickets
Air New Zealand
18 Apr
ORD21:35Chicago O'Hare Intl
53h 25m
2 stops
PER16:00Perth
25 Apr
PER19:50Perth
40h 25m
2 stops
ORD23:15Chicago O'Hare Intl
$2,209
Air New Zealand
19 Apr
ORD07:30Chicago O'Hare Intl
43h 30m
2 stops
PER16:00Perth
26 Apr
PER19:50Perth
38h 41m
2 stops
ORD21:31Chicago O'Hare Intl
$2,213
Air New Zealand
30 June
ORD16:45Chicago O'Hare Intl
40h 30m
2 stops
PER22:15Perth
29 July
PER00:25Perth
35h 50m
2 stops
ORD23:15Chicago O'Hare Intl
$2,216

Cathay Pacific flights from Illinois to Perth

Our best Cathay Pacific deals on Illinois to Perth flight tickets
Cathay Pacific
16 Apr
ORD16:15Chicago O'Hare Intl
41h 25m
1 stop
PER22:40Perth
22 Apr
PER00:10Perth
26h 45m
1 stop
ORD13:55Chicago O'Hare Intl
$2,545
Cathay Pacific
19 Mar
ORD15:35Chicago O'Hare Intl
26h 20m
1 stop
PER06:55Perth
29 Mar
PER08:20Perth
42h 35m
1 stop
ORD13:55Chicago O'Hare Intl
$2,555
Cathay Pacific
19 Apr
ORD16:15Chicago O'Hare Intl
25h 35m
1 stop
PER06:50Perth
26 Apr
PER08:20Perth
42h 35m
1 stop
ORD13:55Chicago O'Hare Intl
$2,584

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 5 March 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

Sun 26/4

20:10-17:10

2 stops32h 00m

Perth

Fri 8/5

05:35-09:40

2 stops41h 05m

$1,936

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 19/4

20:10-01:15

2 stops40h 05m

Perth

Sun 21/6

20:30-09:40

2 stops50h 10m

$2,029

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 30/3

14:00-04:20

2 stops49h 20m

Perth

Mon 6/4

18:25-08:35

2 stops51h 10m

$2,074

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sun 19/4

14:05-16:00

2 stops36h 55m

Perth

Sun 26/4

19:50-21:31

2 stops38h 41m

$2,083
Fastest return journey

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 20/4

15:40-15:45

2 stops35h 05m

Perth

Mon 4/5

22:40-14:45

2 stops29h 05m

$2,104

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 20/4

14:00-15:45

3 stops36h 45m

Perth

Mon 4/5

22:40-14:45

2 stops29h 05m

$2,114

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Mon 20/4

09:50-15:45

3 stops40h 55m

Perth

Mon 4/5

23:55-19:25

3 stops32h 30m

$2,132

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Sat 18/4

21:35-16:00

2 stops53h 25m

Perth

Sat 25/4

19:50-23:15

2 stops40h 25m

$2,209

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 30/3

16:13-08:50

2 stops27h 37m

Perth

Mon 6/4

23:55-23:57

2 stops37h 02m

$2,274

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 30/3

13:34-12:35

3 stops34h 01m

Perth

Mon 6/4

23:55-23:57

2 stops37h 02m

$3,028

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

Can stopping save me money on Illinois to Perth flights?

You could potentially save up to 16% 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

26h 20m

Direct flights

None
The fastest flight from Illinois to Perth takes 26h 20m
There are no direct flights from Illinois to Perth. There are no popular flight routes from Illinois to Perth.
Search flight deals

  • 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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