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Cheap flights from Sydney to Illinois from $683

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
24 Dec — 31 Dec1
1 adult

Cheap flight deals from Sydney to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 December 2024.

Round-trip from

$1,465

One-way from

$683
Qantas Airways
  • Qantas Airways
  • 21/3-29/3
  • 2 total stops
  • 47h 23m total
  • Sydney to Illinois
Search Deals
18/2
  • 18/2
  • 2 total stops
  • 25h 09m total
  • Sydney to Illinois
Search Deals

Find flight deals from Sydney to Illinois

Cheapest flights from Sydney to Illinois
Explore the most affordable flight options available from Sydney to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Sun 22/1209:15SYD - ORD
1 stop39h 10mJapan Airlines
Sat 4/120:25ORD - SYD
2 stops41h 25mJapan Airlines
Deal found 19/12$2,480
Tue 24/1211:50SYD - ORD
1 stop28h 30mUnited Airlines
Wed 8/109:00ORD - SYD
2 stops28h 20mUnited Airlines
Deal found 19/12$2,502
Tue 24/1216:15SYD - STL
1 stop25h 13mUnited Airlines
Sat 4/113:44STL - SYD
2 stops26h 21mUnited Airlines
Deal found 18/12$2,597
Sun 22/1209:15SYD - ORD
1 stop39h 10mMultiple Airlines
Sat 4/119:14ORD - SYD
1 stop20h 46mMultiple Airlines
Deal found 19/12$2,689
Sat 21/1211:15SYD - ORD
1 stop21h 47mQantas Airways
Sat 4/115:40ORD - SYD
1 stop24h 20mQantas Airways
Deal found 19/12$3,012
Wed 18/1212:25SYD - ORD
1 stop35h 55mANA
Wed 25/1219:52ORD - SYD
2 stops31h 23mANA
Deal found 17/12$3,231
Wed 18/1212:10SYD - ORD
1 stop33h 53mVirgin Australia
Wed 25/1214:35ORD - SYD
1 stop22h 45mVirgin Australia
Deal found 17/12$3,505
Sun 22/1206:05SYD - STL
2 stops23h 58mAmerican Airlines
Sat 4/106:30STL - SYD
1 stop33h 30mAmerican Airlines
Deal found 18/12$3,637
Tue 24/1211:20SYD - ORD
3 stops37h 45mAir Canada
Sat 4/107:05ORD - SYD
2 stops30h 50mAir Canada
Deal found 19/12$3,637
Sun 22/1211:50SYD - STL
1 stop21h 57mVirgin Australia
Sat 4/117:59STL - SYD
1 stop44h 01mVirgin Australia
Deal found 18/12$3,645
Mon 23/1211:15SYD - STL
1 stop29h 12mQantas Airways
Sat 4/106:30STL - SYD
1 stop33h 30mQantas Airways
Deal found 19/12$3,654
Sun 22/1207:00SYD - STL
3 stops29h 30mMultiple Airlines
Sat 4/117:29STL - SYD
2 stops23h 51mMultiple Airlines
Deal found 18/12$4,293

Find flights from Sydney to Illinois within your budget

Customise your flight search to find flights from Sydney to Illinois 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, Cheapflights users made 647,157 searches. Data last updated 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 21/3

11:15-19:43

1 stop24h 28m

Chicago O'Hare Intl

Sat 29/3

17:10-08:05

1 stop22h 55m

$1,465

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 1/2

14:30-05:31

3 stops32h 01m

Chicago O'Hare Intl

Sat 8/2

11:10-12:30

2 stops32h 20m

$1,508

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 4/2

11:20-09:01

2 stops38h 41m

Chicago O'Hare Intl

Tue 11/2

12:56-09:35

2 stops51h 39m

$1,681

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 12/5

09:20-15:16

2 stops44h 56m

Lambert-St Louis

Sat 31/5

13:30-07:20

2 stops50h 50m

$1,830

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 11/2

12:25-07:20

1 stop35h 55m

Chicago O'Hare Intl

Mon 24/2

18:10-20:15

2 stops33h 05m

$1,938

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Mon 10/2

14:15-22:20

2 stops25h 05m

Chicago Midway

Wed 26/2

10:57-08:35

2 stops28h 38m

$2,081

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 28/4

10:20-17:10

1 stop21h 50m

Chicago O'Hare Intl

Wed 21/5

14:02-06:55

1 stop25h 53m

$2,081

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 12/5

10:20-17:59

1 stop22h 39m

Lambert-St Louis

Sat 31/5

18:00-06:55

1 stop21h 55m

$2,126

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 30/4

09:25-18:41

2 stops24h 16m

Chicago O'Hare Intl

Thu 22/5

15:50-06:35

2 stops23h 45m

$2,142

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 1/5

14:05-14:25

1 stop39h 20m

Chicago O'Hare Intl

Sun 4/5

16:05-06:15

1 stop47h 10m

$2,210

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 33 results
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Best time to book a flight from Sydney to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Sydney to Illinois

Get recent, data-driven insights about flights from Sydney to Illinois including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from SYD to IL?

Find hourly flight availability from Sydney to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 December 2024.

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

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 19 December 2024.
To help decide which airline to fly from Sydney to Illinois, see what other customers have to say about Air Canada, Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.6
Very Good
65 reviews
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

ANA
8.4
Very Good
839 reviews
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Japan Airlines
8.3
Very Good
1,442 reviews
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Emirates
8.1
Very Good
3,410 reviews
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Singapore Airlines
8.1
Very Good
1,331 reviews
Air Tahiti Nui
8.6
Very Good
65 reviews
Check prices

Boarding

8.5

Crew

8.9

Entertainment

7.2

Overall

8.6

Comfort

8.0

Food

7.7

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Illinois from Sydney, you will be flying from Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney.

  • What are the cheapest airlines to fly from Sydney to Illinois one-way?

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $710. However, be on the lookout for offers from Cathay Pacific and United Airlines, as they are both options that can get you from Sydney to Illinois for a low price.

  • What are the most popular routes from Sydney to Illinois?

    The most popular route from Sydney to Illinois is Sydney Kingsford Smith - Chicago O'Hare Intl. You may also consider Sydney Kingsford Smith - Chicago Midway or Sydney Kingsford Smith - Lambert-St Louis.

  • Can I find deals for flights from Sydney to Illinois that include hotel bookings?

    Yes. In addition to deals on Sydney to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Illinois.

  • Can I find deals for business class flights from Sydney to Illinois?

    Yes. Cheapflights offers flight deals from Sydney to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Sydney to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Sydney to Illinois

Discover the top 9 airlines that operate flights from Sydney to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$1,426Average$1,866FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,526Average$1,744FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,529Average$1,938FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,546Average$2,443FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,555Average$2,026FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qantas AirwaysCheapest$1,595Average$2,106FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Virgin AustraliaCheapest$1,762Average$2,747FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
DeltaCheapest$1,856Average$1,990FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Cathay PacificCheapest$1,904Average$2,267FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Illinois?

When you search for this flight from Sydney to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Illinois?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sydney to Illinois.

Can Cheapflights find flights from Sydney to Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to Illinois with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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