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Cheap Flights from Chicago Rockford (RFD) to Sydney (SYD)

Compare Chicago Rockford to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

Book the best Sydney fare with no extra fees

Flight deals from Chicago Rockford to Sydney

Looking for a cheap last-minute deal or the best return flight from Chicago Rockford to Sydney? Find the lowest prices on one-way and return tickets right here.
Sydney.£537 per passenger.Departing Sun, 31 May.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Sun, 31 May, arriving in Sydney.Price includes taxes and charges.From £537, select.
Sydney.£544 per passenger.Departing Mon, 17 Aug.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Mon, 17 Aug, arriving in Sydney.Price includes taxes and charges.From £544, select.
Sydney.£582 per passenger.Departing Mon, 1 Jun.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Mon, 1 Jun, arriving in Sydney.Price includes taxes and charges.From £582, select.
Sydney.£647 per passenger.Departing Wed, 9 Sep.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Wed, 9 Sep, arriving in Sydney.Price includes taxes and charges.From £647, select.
Sydney.£680 per passenger.Departing Sun, 8 Nov.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Sun, 8 Nov, arriving in Sydney.Price includes taxes and charges.From £680, select.
Sydney.£815 per passenger.Departing Wed, 15 Apr.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Wed, 15 Apr, arriving in Sydney.Price includes taxes and charges.From £815, select.
Sydney.£883 per passenger.Departing Thu, 8 Oct.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Thu, 8 Oct, arriving in Sydney.Price includes taxes and charges.From £883, select.
Sydney.£986 per passenger.Departing Mon, 6 Jul.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Mon, 6 Jul, arriving in Sydney.Price includes taxes and charges.From £986, select.

Find the cheapest month to fly from Chicago Rockford to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago Rockford to Sydney flights are currently cheapest in May.
Apr
from £815
May
from £537
Jun
from £582
Jul
from £986
Aug
from £544
Sep
from £647
Oct
from £883
Nov
from £680
Dec
Find prices
Jan
Find prices
Feb
Find prices
Mar
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Chicago Rockford to Sydney: Alternative routes

Compare routes from Chicago Rockford to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Sydney

5 miles from central Sydney
ClosestCheapest
from £537
Search flights

Wollongong

54 miles from central Sydney
Search flights

Chicago to Sydney: Flight information

The things to know before you go.
Cheapest flight found£537
Cheapest month to flyMay

Finding cheap flights from Chicago Rockford to Sydney: Frequently asked questions

The best price we found for a return flight from Chicago Rockford to Sydney is £1,423. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago Rockford to Sydney. But we found flights with one or more stops from £1,423.
As of April 2026, there are no flights flying from Chicago Rockford to Sydney.
The cheapest month to fly from Chicago Rockford to Sydney is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago Rockford Airport to Sydney Airport on Sunday, 24 May 2026.
No airlines currently offer direct flights between Chicago Rockford Airport and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Allegiant Air offers the cheapest flight tickets to Sydney.

How to find cheap flights to Sydney (SYD) from Chicago (RFD) in 2026

Looking for cheap tickets from Chicago Rockford to Sydney? Return tickets start from £1,423 and one-way flights to Sydney from Chicago Rockford start from £537


Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Chicago Rockford to Sydney. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Sydney from Chicago from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Sydney start from £537 one-way.
  • Flex your dates to find the best RFD-SYD ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Sydney from Chicago Rockford.
  • Set up a Price Alert. You can easily track the fare of your cheap Chicago Rockford-Sydney flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Flexible on when you travel? The cheapest month to fly from Chicago Rockford to Sydney is May.
  • Fly without stops. Only interested in direct flights between Chicago Rockford and Sydney? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Chicago Rockford and Sydney. We scour the internet for the best Business, Premium Economy and First Class flight fares to Sydney, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Chicago Rockford to Sydney flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Chicago Rockford and Sydney whenever you want.

Combine your flight to Sydney from Chicago Rockford with hotels and car hire

Once you've secured your cheap flight ticket from Chicago Rockford to Sydney, discover the best prices and exclusive rates for hotels in Sydney or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Plan the rest of your trip from Chicago to Sydney

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.