Flights from Illinois (IL) to Sydney, Australia from $579

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How to find the cheapest flight from
Illinois to Sydney (SYD)

All the information you need to plan the best null to SYD flight in 2022: compare Illinois to Sydney flight prices with the expected peak season, weather and rainfall in Sydney.

How far in advance should I book a flight from Illinois to Sydney?

Travelers have found it’s best to book a flight 61 days in advance to save up to 14% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Illinois to Sydney 1-2 weeks in advance for as low as $1,257, or $1,362 for flights within the next 24 hours.

What is the cheapest month to fly from Illinois to Sydney?

Flights from Illinois to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Illinois to Sydney in November, with the cheapest ticket starting at $586.

When is the cheapest time to fly from Illinois to Sydney (IL - SYD)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sydney as you normally would.

Cheap flights from Illinois to Sydney in January, February 2022

The best prices found for Illinois to SYD flights for January, February

23 Feb - 2 Mar

$916pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

16 Feb - 23 Feb

$927pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

27 Feb - 2 Mar

$934pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

Illinois to Sydney 2022 flight deals

Cheap flights to Sydney from Illinois found for this year

23 Feb - 2 Mar

$916pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

16 Feb - 23 Feb

$927pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

27 Feb - 2 Mar

$934pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

Last minute flights from Illinois to Sydney

Late deals on round-trip flights to Sydney from Illinois, departing today and this week

1 Feb - 19 Feb

$1,122pp

ORD

Chicago O'Hare Intl

Multiple Airlines

3 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

1 Feb - 19 Feb

$1,154pp

ORD

Chicago O'Hare Intl

Multiple Airlines

3 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

3 STOPS

ORD

Chicago O'Hare Intl

31 Jan - 28 Feb

$1,158pp

ORD

Chicago O'Hare Intl

Multiple Airlines

2 STOPS

SYD

Sydney Kingsford Smith

SYD

Sydney Kingsford Smith

Multiple Airlines

2 STOPS

ORD

Chicago O'Hare Intl

One-way flights to Kingsford Smith from Illinois

The cheapest one-way flights from Illinois to Sydney

9:15 am - 1:20 am

Multiple Airlines

1 Stop

23h 05m

ORD - SYD

$791

Kiwi.com

3:38 pm - 1:20 am

Multiple Airlines

1 Stop

40h 42m

ORD - SYD

$847

Kiwi.com

9:10 am - 2:30 pm

Multiple Airlines

2 Stops

36h 20m

ORD - SYD

$579

Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Illinois</span> to <span class="emphasized">Sydney</span> flights.

Flight FAQs

From Illinois to Sydney

What airport do you fly into for flights to Sydney from Illinois?

If you book a flight to Sydney from Illinois, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney.

Which airlines flying from Illinois to Sydney Kingsford Smith have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Illinois to Sydney Kingsford Smith that may be offering flexible cancellation policies are Qantas Airways, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Illinois to Sydney for under $1,000 on Cheapflights?

Yes, there are multiple flights from Illinois to Sydney for under $1,000. The cheapest flight booked recently is on Multiple Airlines for just $916, but on average you can expect to pay $984.

Are there last-minute flights available from Illinois to Sydney for under $1,200?

There are currently 20+ open flights from Illinois to Sydney within the next 7 days for less than $1,200.

What are the cheapest flights from Illinois to Sydney?

The cheapest flight price from Illinois to Sydney is $199. On average you can expect to pay $1,850. The most popular route, (Chicago O'Hare Intl - Sydney Kingsford Smith), can usually be booked for $1,000.

What are the most popular routes from Illinois to Sydney?

While some choose either Chicago Midway - Sydney Kingsford Smith or Lambert-St Louis - Sydney Kingsford Smith, Chicago O'Hare Intl - Sydney Kingsford Smith is the most popular route from Illinois to Sydney.

What are the most popular airlines that fly from Illinois to Sydney?

Before booking your flight from Illinois to Sydney check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

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COVID Restrictions

View COVID Travel Restrictions for Sydney, Australia

Do I need a COVID test to fly to Sydney from Illinois?

Information is based on travel restrictions from Illinois to Sydney Kingsford Smith

Most visitors from Illinois will not be allowed to enter Sydney Kingsford Smith.

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Sydney Kingsford Smith.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering Sydney Kingsford Smith.

Documents
Travel Authorization Form - Travelers who are not in an exempt category may request an individual exemption to Australia's travel restrictions using this form.

Do I need a test to fly back to Illinois from Sydney?

Returning to Illinois from Sydney Kingsford Smith

COVID-19 testing requirements
Visitors from Sydney Kingsford Smith must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Illinois.

Quarantine requirements
Visitors from Sydney Kingsford Smith are not required to quarantine after entering Illinois.

Hide COVID Travel Restrictions for Sydney, Australia

Departure points for flights from Illinois to Sydney

Select to see more specific information for flights to Sydney from all departure points in Illinois.

Flights from Midway to Sydney from $1,384 pp

Flights from O'Hare Intl to Sydney from $1,000 pp

Flights from St. Louis to Sydney from $1,225 pp

Destination information for Sydney

Things to know before you go - useful duration and weather info for your trip from Illinois to Sydney.

$1 = $1.40

32.0 °F

5.7 ″

Airports servicing

Belleville (BLV)

Bloomington (BMI)

Champaign (CMI)

Decatur (DEC)

Moline (MLI)

Marion (MWA)

Airports servicing Sydney

Sydney (SYD)

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Spirit Airlines	$121	$228	No cancel fee	65%
American Airlines	$232	$1,604	No cancel fee	71%
United Airlines	$465	$1,087	No cancel fee	69%
Virgin Australia	$494	$717	No cancel fee	80%
Qantas Airways	$511	$912	No cancel fee	74%
Delta	$540	$1,035	No cancel fee	N/A
Fiji Airways	$627	$940	No cancel fee	74%
Air Canada	$804	$1,234	No cancel fee	67%
China Eastern	$821	$1,239	No cancel fee	62%	We couldn't confirm the COVID-19 safety measures taken by China Eastern. Please check directly on their website for additional information.
Hainan Airlines	$849	$925	No cancel fee	61%	We couldn't confirm the COVID-19 safety measures taken by Hainan Airlines. Please check directly on their website for additional information.