Cheap Flights from Chicago, IL to Sydney from $508

Return flight: Sydney – Chicago

On Cheapflightsplus.com you will find 1000 connecting flights from Chicago to Sydney. You can compare airfare deals from 41 airlines and multiple travel sites from $508, book and save on cheap plane tickets and last minute offers. Also check out CHI-SYD flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Chicago to Sydney depends on and how to choose the most interesting flight option for you.

Distance between Chicago and Sydney is 14883 miles. Time difference between the cities is 4h. Airplanes depart 00:30 to 23:45 from 7 Chicago airports and arrive 00:30 to 23:45 to 5 Sydney airports. Average flight time is 33h 40m.

  • The fastest flight 20h 20m
  • Average flight time 33h 40m
  • The earliest flight 00:30
  • The latest flight 23:45
  • Distance 9248 ml

The cheapest months to travel to Sydney are august (from 508 $), june (from 587 $), september (from 593 $).

The most expensive months are january (from 1 107 $), december (from 979 $), february (from 928 $).

What is the lowest airfare Chicago to Sydney?

The cheapest plane ticket found by our users is $508. This airfare is for economy class on one-way F91887 flight by Frontier Airlines for August 16, 2025 which leaves Midway in Chicago at 08:05 am and arrives at Sydney Kingsford Smith at 11:45.

Economy class
$508
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Business class
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First class
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Flight Schedule Chicago (Illinois) to Sydney

06:10 — 07:30+2days
34h 20m flight time
Find flight
from$617
06:10 — 08:44 Chicago — Los Angeles
F92445 Frontier Airlines
14h 31m stop
23:10 — 07:30 Los Angeles — Sydney
QF12 Qantas
06:45 — 07:30+2days
32h 45m flight time
Find flight
from$587
06:45 — 09:07 Chicago — Los Angeles
NK467 Spirit Airlines
13h 3m stop
23:10 — 07:30 Los Angeles — Sydney
QF12 Qantas
08:00 — 07:30+2days
31h 30m flight time
Find flight
from$587
08:00 — 10:26 Chicago — Los Angeles
NK3016 Spirit Airlines
11h 44m stop
23:10 — 07:30 Los Angeles — Sydney
QF12 Qantas
10:05 — 07:05+2days
30h flight time
Find flight
from$861
09:50 — 12:23 Chicago — Los Angeles
QF4311 Qantas
10h 51m stop
22:40 — 09:00 Los Angeles — Sydney
QF4112 Qantas
10:55 — 08:00+2days
29h 5m flight time
Find flight
from$856
10:50 — 13:23 Chicago — Los Angeles
UA1584 United Airlines
9h 19m stop
22:50 — 07:00 Los Angeles — Sydney
UA839 United Airlines
11:50 — 19:15+2days
40h 25m flight time
Find flight
from$701
10:30 — 15:00 Chicago — Tokyo
NH11 All Nippon Airways
17h 35m stop
08:35 — 20:15 Tokyo — Sydney
NH889 All Nippon Airways
11:50 — 09:25+2days
30h 35m flight time
Find flight
from$763
10:30 — 15:00 Chicago — Tokyo
NH11 All Nippon Airways
7h 45m stop
22:45 — 10:30 Tokyo — Sydney
NH879 All Nippon Airways
13:05 — 08:00+2days
26h 55m flight time
Find flight
from$856
12:51 — 15:20 Chicago — Los Angeles
UA1363 United Airlines
7h 11m stop
22:50 — 07:00 Los Angeles — Sydney
UA839 United Airlines
14:35 — 08:00+2days
25h 25m flight time
Find flight
from$856
13:55 — 16:22 Chicago — Los Angeles
UA378 United Airlines
5h 42m stop
22:50 — 07:00 Los Angeles — Sydney
UA839 United Airlines
15:40 — 08:00+2days
24h 20m flight time
Find flight
from$856
15:40 — 18:08 Chicago — Los Angeles
UA2124 United Airlines
4h 37m stop
22:45 — 07:00 Los Angeles — Sydney
UA839 United Airlines
16:35 — 08:00+2days
23h 25m flight time
Find flight
from$856
16:35 — 19:03 Chicago — Los Angeles
UA2053 United Airlines
3h 42m stop
22:45 — 07:00 Los Angeles — Sydney
UA839 United Airlines
16:58 — 07:30+2days
23h 32m flight time
Find flight
from$607
08:37 — 11:08 Chicago — Los Angeles
NK2544 Spirit Airlines
3h 43m stop
23:10 — 07:30 Los Angeles — Sydney
QF12 Qantas
17:45 — 19:15+2days
34h 30m flight time
Find flight
from$691
16:25 — 21:05 Chicago — Tokyo
NH111 All Nippon Airways
11h 20m stop
08:35 — 20:15 Tokyo — Sydney
NH889 All Nippon Airways
18:25 — 08:00+2days
21h 35m flight time
Find flight
from$856
18:25 — 20:57 Chicago — Los Angeles
UA1967 United Airlines
1h 45m stop
22:50 — 07:00 Los Angeles — Sydney
UA839 United Airlines
19:49 — 07:30+3days
44h 41m flight time
Find flight
from$700
19:49 — 22:20 Chicago — Los Angeles
NK2191 Spirit Airlines
24h 50m stop
23:10 — 07:30 Los Angeles — Sydney
QF12 Qantas
Full flight schedule will help you in detecting at what time planes fly from Chicago to Sydney. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 14, 2025.

Popular Airlines on the Route

The flight Chicago — Sydney is served by 41 regular airline and 9 low-cost airlines. Most of the flights on this route are operated by Japan Airlines - JAL - 6 departures per week at the price of from $ 1001 . And the most expensive tickets are offered by Turkish Airlines airline - from $ 1822.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 1000 flights with layovers on the route. The fastest connecting flight is UA2155 by United Airlines takes 20h 20m and the cheapest is F91887 by Frontier Airlines for $508.

  • JL - Japan Airlines - JAL
    from $1001
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  • LO - LOT
    from $1297
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  • FI - Icelandair
    from $1676
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  • FJ - Air Pacific
    from $1176
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  • JU - Air Serbia
    from $1716
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  • UA - United Airlines
    from $856
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  • NZ - Air New Zealand Limited
    from $1071
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  • LX - SWISS International Air Lines
    from $1319
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  • BR - EVA Airways Corporation
    from $774
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  • QF - Qantas
    from $861
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  • IB - Iberia
    from $1388
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  • KE - Korean Air
    from $718
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See more connecting flights

Airports

You can fly from Chicago to Sydney from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).

Chicago airports

  • O'Hare International-ORD
    from $508
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  • Midway-MDW
    from $508
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  • Dupage County-DPA
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  • Chicago FSS-CHI
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  • Merrill C Meigs (closed)-CGX
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  • Pal-Waukee-PWK
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  • Chicago NAS-NOH
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Sydney airports

  • Bankstown-BWU
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  • Palm Beach SPB-LBH
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  • Rose Bay-RSE
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  • Kingsford Smith-SYD
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  • Sydney West-SWZ
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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