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Cheap flights from Chicago to Sydney, NS from C$ 1,755

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YQY
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from Chicago to Sydney
Explore the most affordable flight options available from Chicago to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Mon 3/113:35 p.m.ORD - YQY
1 stop4h 54mAir Canada
Mon 17/115:15 a.m.YQY - ORD
1 stop16h 45mAir Canada
Deal found 29/10C$ 1,755

Best time to book a flight from Chicago to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Chicago with our price prediction graph.
Estimated round-trip price
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Everything you need to know about your flight from Chicago to Sydney
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Related info for your journey

Find useful and relevant information for your journey from Chicago to Sydney. 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 into for flights to Sydney from Chicago?

    Sydney (YQY), located 11.2 km from the city centre, is the airport you fly into when you book flights from Chicago to Sydney. 0 airlines have flights to Sydney from Chicago on a regular basis. Booking flights from Chicago to Sydney should not be difficult; the airport handles an average of 0 inbound flights from Chicago per day.

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

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

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

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

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

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

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Alternative routes for Chicago to Sydney

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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 Chicago to Sydney.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Chicago today and book when prices fit your budget.

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