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$420+ Cheap flights from Sydney (SYD) to Illinois

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Round-trip from

$923
(Trip.com)

One-way from

$420
(Kiwi.com)
From Sydney Kingsford Smith to Illinois
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One-way flight from Sydney Kingsford Smith to Illinois
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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 December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:50 amSYD - ORD
1 stop24h 59mUnited Airlines
Wed 1/89:00 amORD - SYD
2 stops28h 20mUnited Airlines
Deal found 12/18$1,588
This Orbitz deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:20 amSYD - ORD
3 stops40h 34mAir Canada
Tue 1/1410:53 amORD - SYD
2 stops29h 42mAir Canada
Deal found 12/17$1,661
This Air Tahiti Nui deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:55 amSYD - ORD
3 stops31h 15mAir Tahiti Nui
Fri 1/245:40 pmORD - SYD
3 stops31h 00mAir Tahiti Nui
Deal found 12/17$1,718
This Mytrip deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:25 amSYD - ORD
3 stops40h 05mMultiple Airlines
Tue 1/148:00 amORD - SYD
3 stops35h 30mMultiple Airlines
Deal found 12/17$1,978
This BestPriceTravel deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1812:25 pmSYD - ORD
1 stop35h 55mANA
Wed 12/257:52 pmORD - SYD
2 stops31h 23mANA
Deal found 12/17$2,035
This Virgin Australia deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Australia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1812:10 pmSYD - ORD
1 stop33h 53mVirgin Australia
Wed 12/252:35 pmORD - SYD
1 stop22h 45mVirgin Australia
Deal found 12/17$2,208
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:05 amSYD - MDW
2 stops23h 06mDelta
Tue 1/149:34 amMDW - SYD
2 stops28h 16mDelta
Deal found 12/17$2,509

Find flights from Sydney to Illinois within your budget

Customize 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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 3/21

11:15 am-7:43 pm

1 stop24h 28m

Chicago O'Hare Intl

Sat 3/29

5:10 pm-8:05 am

1 stop22h 55m

$923

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 1/23

2:00 pm-11:13 pm

2 stops26h 13m

Chicago O'Hare Intl

Thu 1/30

11:10 am-1:00 pm

2 stops32h 50m

$932

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 1/23

11:20 am-2:39 pm

1 stop20h 19m

Chicago O'Hare Intl

Wed 2/5

7:20 am-9:35 am

2 stops33h 15m

$1,015

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 5/12

9:20 am-3:16 pm

2 stops44h 56m

Lambert-St Louis

Sat 5/31

1:30 pm-7:20 am

2 stops50h 50m

$1,070

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/16

8:55 pm-8:40 am

1 stop26h 45m

Chicago O'Hare Intl

Fri 5/23

7:15 am-9:25 am

2 stops59h 10m

$1,254

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Mon 3/3

11:05 am-10:20 pm

2 stops28h 15m

Chicago Midway

Mon 3/10

2:55 pm-7:35 am

2 stops24h 40m

$1,315

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 5/12

10:20 am-10:41 pm

1 stop27h 21m

Lambert-St Louis

Sat 5/31

6:00 pm-6:55 am

1 stop21h 55m

$1,350

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/1

2:05 pm-2:25 pm

1 stop39h 20m

Chicago O'Hare Intl

Sun 5/4

4:05 pm-6:15 am

1 stop47h 10m

$1,392

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/16

10:20 am-6:54 pm

2 stops23h 34m

Chicago O'Hare Intl

Fri 5/23

12:45 pm-7:00 am

2 stops27h 15m

$1,401

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 5/23

9:25 am-7:00 pm

2 stops24h 35m

Chicago O'Hare Intl

Thu 6/5

3:50 pm-6:35 am

2 stops23h 45m

$1,406

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 38 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 round-trip 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 month to book a flight from Sydney to Illinois?

Currently, September is the cheapest month in which you can book a flight from Sydney to Illinois (average of $232). Flying from Sydney to Illinois in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 December 18, 2024.

When flying from Sydney to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 December 18, 2024.
Peruse reviews from past customers who have flown with United Airlines, Air Canada and Korean Air from Sydney to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.6
Very good
65 reviews

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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.

Korean Air
8.4
Very good
1,018 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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
1,443 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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
1,329 reviews
Air Tahiti Nui
8.6
Very good
65 reviews

Crew

8.9

Overall

8.6

Comfort

8.0

Food

7.7

Boarding

8.5

Entertainment

7.2

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?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly out of when you book flights from Sydney to Illinois.

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

    $447 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on Cathay Pacific and Japan Airlines, with prices starting from $772 and $824, respectively.

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

    The most popular flight routes from Sydney to Illinois are Sydney Kingsford Smith - Chicago O'Hare Intl, Sydney Kingsford Smith - Chicago Midway and 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 vacation 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.

  • What is the cheapest month to book a flight from Sydney to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Sydney to Illinois (average of $232). Flying from Sydney to Illinois in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Sydney to Illinois

Discover the top 2 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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$884Average$1,316FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$964Average$1,593FlexibilityNo cancel feeOn-time69%
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