Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Adelaide from $599

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 Adelaide departing on 2/1. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:40 pm - 6:10 pmORD-ADL
34h 00m2 stops
Multiple Airlines Logo
6:55 pm - 2:43 pmADL-ORD
35h 18m2 stops
$1,122Multiple Airlines
Find Deal
mié., feb. 25 - mar., mar. 31
Air Canada Logo
1:12 pm - 6:10 pmORD-ADL
36h 28m3 stops
Air Canada Logo
6:55 pm - 2:43 pmADL-ORD
35h 18m2 stops
$1,133Air Canada
Find Deal
mié., feb. 25 - mar., mar. 31
Air Canada Logo
3:40 pm - 4:20 pmORD-ADL
32h 10m2 stops
Air Canada Logo
6:10 am - 2:41 pmADL-ORD
25h 01m2 stops
$1,282Air Canada
Find Deal
vie., feb. 27 - mar., mar. 3
Air Canada Logo
3:40 pm - 10:30 pmORD-ADL
38h 20m2 stops
Air Canada Logo
6:55 pm - 7:58 pmADL-ORD
40h 33m2 stops
$1,286Air Canada
Find Deal
mié., feb. 25 - mar., mar. 31
Air Canada Logo
3:40 pm - 4:20 pmORD-ADL
32h 10m2 stops
Air Canada Logo
6:00 am - 1:01 pmADL-ORD
47h 31m3 stops
$1,292Air Canada
Find Deal
vie., feb. 27 - mar., mar. 3
Air Canada Logo
3:40 pm - 10:30 pmORD-ADL
38h 20m2 stops
Air Canada Logo
6:00 am - 7:30 pmADL-ORD
30h 00m3 stops
$1,293Air Canada
Find Deal
vie., feb. 27 - mar., mar. 3
Air Canada Logo
2:00 pm - 6:10 pmORD-ADL
35h 40m3 stops
Air Canada Logo
6:00 am - 10:03 pmADL-ORD
31h 33m3 stops
$1,299Air Canada
Find Deal
mié., feb. 25 - mar., mar. 31
Multiple Airlines Logo
11:11 am - 6:10 pmORD-ADL
38h 29m3 stops
Multiple Airlines Logo
6:00 am - 10:03 pmADL-ORD
31h 33m3 stops
$1,449Multiple Airlines
Find Deal
mié., feb. 25 - mar., mar. 31
Air Canada Logo
10:00 am - 6:10 pmORD-ADL
39h 40m3 stops
Air Canada Logo
8:00 pm - 1:00 pmADL-ORD
56h 30m3 stops
$1,512Air Canada
Find Deal
mié., feb. 25 - mar., mar. 31
Multiple Airlines Logo
3:40 pm - 1:55 pmORD-ADL
30h 45m2 stops
Multiple Airlines Logo
9:20 pm - 7:58 pmADL-ORD
37h 08m2 stops
$1,569Multiple Airlines
Find Deal
jue., abr. 2 - jue., abr. 16

Qatar Airways flights from Illinois to Adelaide

Our best Qatar Airways deals on Illinois to Adelaide flight tickets
Qatar Airways
Apr 2
ORD7:20 pmChicago O'Hare Intl
30h 00m
1 stop
ADL4:50 pmAdelaide
Apr 16
ADL6:20 pmAdelaide
35h 15m
2 stops
ORD3:05 pmChicago O'Hare Intl
$2,351
Find similar
Qatar Airways
Jan 9
ORD6:50 pmChicago O'Hare Intl
29h 45m
1 stop
ADL5:05 pmAdelaide
Jan 24
ADL10:00 pmAdelaide
33h 00m
1 stop
ORD2:30 pmChicago O'Hare Intl
$2,708
Find similar
Qatar Airways
Jan 9
ORD6:50 pmChicago O'Hare Intl
29h 45m
1 stop
ADL5:05 pmAdelaide
Jan 24
ADL10:00 pmAdelaide
33h 00m
1 stop
ORD2:30 pmChicago O'Hare Intl
$2,709
Find similar

Air Canada flights from Illinois to Adelaide

Our best Air Canada deals on Illinois to Adelaide flight tickets
Air Canada
Feb 25
ORD1:12 pmChicago O'Hare Intl
36h 28m
3 stops
ADL6:10 pmAdelaide
Mar 31
ADL6:55 pmAdelaide
35h 18m
2 stops
ORD2:43 pmChicago O'Hare Intl
$1,133
Find similar
Air Canada
Feb 27
ORD3:40 pmChicago O'Hare Intl
32h 10m
2 stops
ADL4:20 pmAdelaide
Mar 3
ADL6:10 amAdelaide
25h 01m
2 stops
ORD2:41 pmChicago O'Hare Intl
$1,282
Find similar
Air Canada
Feb 25
ORD3:40 pmChicago O'Hare Intl
38h 20m
2 stops
ADL10:30 pmAdelaide
Mar 31
ADL6:55 pmAdelaide
40h 33m
2 stops
ORD7:58 pmChicago O'Hare Intl
$1,286
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Adelaide 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 832,500 searches. Data last updated noviembre 20, 2025.
Use the filters below to find and compare flights from Illinois to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

3:40 pm-6:10 pm

2 stops34h 00m

Adelaide

mar. 3/31

6:55 pm-2:43 pm

2 stops35h 18m

$1,122

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

1:12 pm-6:10 pm

3 stops36h 28m

Adelaide

mar. 3/31

6:55 pm-2:43 pm

2 stops35h 18m

$1,133

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

vie. 2/27

3:40 pm-4:20 pm

2 stops32h 10m

Adelaide

mar. 3/3

6:10 am-2:41 pm

2 stops25h 01m

$1,282

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

3:40 pm-10:30 pm

2 stops38h 20m

Adelaide

mar. 3/31

6:55 pm-7:58 pm

2 stops40h 33m

$1,286

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

vie. 2/27

3:40 pm-4:20 pm

2 stops32h 10m

Adelaide

mar. 3/3

6:00 am-1:01 pm

3 stops47h 31m

$1,292

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

vie. 2/27

3:40 pm-10:30 pm

2 stops38h 20m

Adelaide

mar. 3/3

6:00 am-7:30 pm

3 stops30h 00m

$1,293

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

2:00 pm-6:10 pm

3 stops35h 40m

Adelaide

mar. 3/31

6:00 am-10:03 pm

3 stops31h 33m

$1,299

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

11:11 am-6:10 pm

3 stops38h 29m

Adelaide

mar. 3/31

6:00 am-10:03 pm

3 stops31h 33m

$1,449

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

mié. 2/25

10:00 am-6:10 pm

3 stops39h 40m

Adelaide

mar. 3/31

8:00 pm-1:00 pm

3 stops56h 30m

$1,512

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

jue. 4/2

3:40 pm-1:55 pm

2 stops30h 45m

Adelaide

jue. 4/16

9:20 pm-7:58 pm

2 stops37h 08m

$1,569

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Adelaide from

How to get the cheapest flight ticket from Illinois to Adelaide

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 Adelaide?

The cheapest month to fly to Adelaide from Illinois is in February. Flight prices, which tend to average around $1,023, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Adelaide from Illinois during April instead. Flights to Adelaide in April, while not as cheap as those in February, still average around $1,060.

What is the cheapest day to depart on your flight to Adelaide?

The cheapest day to depart on your flight to Adelaide is on a Tuesday when prices can be found for as low as $1,440. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Adelaide is Saturday, with ticket prices averaging around $2,298.

What is the cheapest time of day to depart on your flight to Adelaide?

According to our data, the cheapest time of day to fly to Adelaide is at noon. momondo users have found flights departing from Illinois to Adelaide at noon for as low as $1,201. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Adelaide are more costly in the morning, with an average ticket price of $2,194. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Illinois to Adelaide flight deals and tips

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

Direct flights

None
There are no direct flights from Illinois to Adelaide. There are no popular flight routes from Illinois to Adelaide.
Search flight deals

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

    Prices for flights from Illinois to Adelaide Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Adelaide Airport.

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

    The required travel and health documents for your Adelaide 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 Adelaide Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Adelaide

Compare and see reviews for airlines that fly from Illinois to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $982Free CancellationRating
7.5
942 reviews
Search Qantas Airways flights
Air New ZealandPriceFrom $1,303Free CancellationRating
8.0
533 reviews
Search Air New Zealand flights
Fiji AirwaysPriceFrom $1,351Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $1,885Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Adelaide. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Adelaide from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Illinois to Adelaide 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 Adelaide right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Adelaide from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Adelaide trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 12/20
sáb. 12/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia