Flights from Chicago to Sydney

Cheapest flights from Chicago

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,360 Roundtrip, found 21 hours ago

$1,360

Roundtrip

found 21 hours ago

Select All Nippon Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,360 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,421 Roundtrip, found 21 hours ago

$1,421

Roundtrip

found 21 hours ago

Select Air Canada flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,421 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,444 Roundtrip, found 21 hours ago

$1,444

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,444 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,460 Roundtrip, found 21 hours ago

$1,460

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,460 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,465 Roundtrip, found 21 hours ago

$1,465

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,465 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,465 Roundtrip, found 21 hours ago

$1,465

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,465 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,473 Roundtrip, found 21 hours ago

$1,473

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,473 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,483 Roundtrip, found 21 hours ago

$1,483

Roundtrip

found 21 hours ago

Select Qantas Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,483 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,484 Roundtrip, found 21 hours ago

$1,484

Roundtrip

found 21 hours ago

Select Qantas Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,484 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,496 Roundtrip, found 21 hours ago

$1,496

Roundtrip

found 21 hours ago

Select Qantas Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,496 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$1,676 Roundtrip, found 21 hours ago

$1,676

Roundtrip

found 21 hours ago

Select Air New Zealand flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $1,676 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$2,245 Roundtrip, found 21 hours ago

$2,245

Roundtrip

found 21 hours ago

Select Air Tahiti Nui flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $2,245 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$2,262 Roundtrip, found 21 hours ago

$2,262

Roundtrip

found 21 hours ago

Select Japan Airlines flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $2,262 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$2,415 Roundtrip, found 21 hours ago

$2,415

Roundtrip

found 21 hours ago

Select Korean Air flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $2,415 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$2,455 Roundtrip, found 21 hours ago

$2,455

Roundtrip

found 21 hours ago

Select Turkish Airlines flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $2,455 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$3,028 Roundtrip, found 21 hours ago

$3,028

Roundtrip

found 21 hours ago

Select Cathay Pacific flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $3,028 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$3,191 Roundtrip, found 21 hours ago

$3,191

Roundtrip

found 21 hours ago

Select Emirates flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $3,191 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$3,459 Roundtrip, found 21 hours ago

$3,459

Roundtrip

found 21 hours ago

Select British Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $3,459 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$3,465 Roundtrip, found 21 hours ago

$3,465

Roundtrip

found 21 hours ago

Select Etihad Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $3,465 found 21 hours ago

Tue, May 19 - Sun, May 31

ORD

O'Hare Intl.

SYD

Kingsford Smith Intl.

$3,759 Roundtrip, found 21 hours ago

$3,759

Roundtrip

found 21 hours ago

Select Qatar Airways flight, departing Tue, May 19 from O'Hare Intl. to Kingsford Smith Intl., returning Sun, May 31, priced at $3,759 found 21 hours ago