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Cheap flights from Australia to Illinois

SYD — ORD
6 May — 13 May1
1 adult

Cheap flight deals from Australia to Illinois

Keep the following information in mind while searching for Australia to Illinois flight deals. Data was last updated 1 May 2025.

Round-trip from

$1,558

One-way from

$905

Popular in

December

Cheapest in

March

Average price

$1,557
5/6-23/6
  • 5/6-23/6
  • 4 total stops
  • 63h 15m total
  • Australia to Illinois
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29/8
  • 29/8
  • 2 total stops
  • 35h 49m total
  • Australia to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($507 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($111 potential savings vs. average return price).
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Average for round-trip flights in May 2025
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Cheapflights Insights

Everything you need to know about your flight from Australia to Illinois

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

Find hourly flight availability from Australia 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 1 May 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Australia 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 1 May 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, EVA Air and Korean Air from Australia to Illinois by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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
8.8
Very Good
62 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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.
EVA Air
8.4
Very Good
1,186 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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
1,069 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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
1,464 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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
8.3
Very Good
852 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Crew

9.1

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

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 Australia to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with Cathay Pacific, which is currently one of the cheapest options available, starting at $1,013. EVA Air flights start at $1,038 while deals on American Airlines start at $1,085 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia 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 Australia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Australia to Illinois

Discover the top 10 airlines that operate flights from Australia 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 1 May 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,000Average$1,756FlexibilityNo cancel feeOn-time74%
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American AirlinesCheapest$1,158Average$1,861FlexibilityNo cancel feeOn-time71%
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Air New ZealandCheapest$1,208Average$1,695FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Air CanadaCheapest$1,300Average$1,899FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
EVA AirCheapest$1,570Average$1,722FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
United AirlinesCheapest$1,587Average$2,243FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapest$1,637Average$2,448FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
ANACheapest$1,716Average$2,247FlexibilityNo cancel feeOn-time80%
Search ANA flights
Virgin AustraliaCheapest$1,735Average$2,864FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
DeltaCheapest$1,827Average$1,959FlexibilityNo cancel feeOn-timeN/A
Search Delta 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 Australia to Illinois?

Cheapflights helps you search for flights from Australia to Illinois via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Australia.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Australia to Illinois flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Australia to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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