$813+ Cheap flights to Chicago

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Chicago

Enter your travel dates to find the best prices.

Cheapest flights to Chicago
Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 21 November 2025.

Sun 23/1121:45SYD - ORD
1 stop26h 35mANA
Tue 25/1118:00ORD - SYD
2 stops33h 15mANA
Deal found 19/11$2,168
Sun 28/1211:20SYD - ORD
1 stop21h 13mQantas Airways
Sun 11/118:40ORD - SYD
1 stop21h 20mQantas Airways
Deal found 19/11$2,264
Thu 4/1212:25SYD - ORD
2 stops34h 54mANA
Mon 8/1216:25ORD - SYD
1 stop25h 05mANA
Deal found 19/11$2,270
Sun 23/1106:30SYD - ORD
2 stops47h 25mMultiple Airlines
Tue 25/1114:35ORD - SYD
2 stops38h 50mMultiple Airlines
Deal found 19/11$2,342
Mon 29/1211:20SYD - ORD
1 stop22h 31mAmerican Airlines
Sun 11/113:15ORD - SYD
2 stops26h 45mAmerican Airlines
Deal found 19/11$2,360
Mon 29/1211:20SYD - ORD
1 stop21h 13mAmerican Airlines
Mon 12/113:24ORD - SYD
2 stops26h 36mAmerican Airlines
Deal found 19/11$2,366
Thu 25/1217:45SYD - ORD
1 stop29h 20mAmerican Airlines
Sun 11/118:40ORD - SYD
1 stop21h 20mAmerican Airlines
Deal found 19/11$2,371
Tue 30/1217:45SYD - ORD
1 stop22h 55mAmerican Airlines
Sun 11/107:00ORD - SYD
1 stop33h 00mAmerican Airlines
Deal found 19/11$2,377
Thu 25/1214:15SYD - MDW
2 stops35h 50mDelta
Tue 13/111:21MDW - SYD
2 stops26h 29mDelta
Deal found 19/11$2,387
Mon 29/1214:00SYD - ORD
2 stops23h 00mUnited Airlines
Sat 10/120:10ORD - SYD
1 stop43h 55mUnited Airlines
Deal found 19/11$2,387
Thu 25/1214:15SYD - MDW
2 stops35h 50mDelta
Wed 14/113:28MDW - SYD
2 stops26h 02mDelta
Deal found 19/11$2,393
Thu 25/1212:10SYD - ORD
1 stop24h 55mUnited Airlines
Mon 12/113:00ORD - SYD
1 stop27h 05mUnited Airlines
Deal found 19/11$2,393

Flights to Chicago in 2025

Find the latest flights to Chicago in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 21 November 2025.

Return from

$1,830

One-way from

$813

Popular in

December

Cheapest in

March

Average price

$1,791
Air Canada
  • Air Canada
  • 2/2-19/2
  • 4 total stops
  • 53h 35m total
  • Sydney to Chicago
5/3
  • 5/3
  • 2 total stops
  • 42h 58m total
  • Sydney to Chicago
Highest demand for flights based on searches. 21% potential increase in price ($411 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($63 potential savings vs. average return price).
Average for return flights in November 2025

Cheapflights Fare Finder

 
Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 21 November 2025.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 16/5

11:50-21:11

2 stops24h 21m

Chicago O'Hare Intl

Sat 6/6

16:40-08:45

2 stops25h 05m

$1,849

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 7/3

11:20-19:45

2 stops25h 25m

Chicago O'Hare Intl

Thu 12/3

07:15-08:35

3 stops33h 20m

$1,926

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 15/1

16:00-08:05

2 stops33h 05m

Chicago O'Hare Intl

Sat 31/1

07:15-09:35

3 stops33h 20m

$1,948

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/2

11:20-08:05

3 stops37h 45m

Chicago O'Hare Intl

Sat 7/2

07:15-09:35

3 stops33h 20m

$1,970

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 16/5

09:10-15:56

1 stop21h 46m

Chicago O'Hare Intl

Sat 6/6

17:52-07:05

1 stop22h 13m

$2,095

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Thu 15/1

10:40-16:29

2 stops22h 49m

Chicago Midway

Sat 31/1

13:26-06:50

2 stops24h 24m

$2,157

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Thu 12/2

10:40-17:45

2 stops24h 05m

Chicago Midway

Thu 26/2

12:46-06:50

2 stops25h 04m

$2,162

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Mon 2/2

10:40-17:29

2 stops23h 49m

Chicago Midway

Thu 19/2

13:28-08:30

2 stops26h 02m

$2,162

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Sun 10/5

09:25-18:05

2 stops23h 40m

Chicago Midway

Sun 31/5

14:00-06:35

2 stops25h 35m

$2,166

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 10/5

09:25-16:48

2 stops22h 23m

Chicago O'Hare Intl

Wed 3/6

15:50-06:35

2 stops23h 45m

$2,166

Flights are sorted by cheapest return flights first.

Deals found on 21/11

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Chicago

When is the best time to book a flight to Chicago?

Use this chart to determine the optimal time to book a return flight from Sydney to Chicago. Price data was last updated on 14 November 2025.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Chicago?

On average, a flight from Sydney to Chicago takes 21 hours 57 minutes. Flights to Chicago from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Chicago?

Use this chart to determine the cheapest time to fly return from Sydney to Chicago. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Chicago should consider flying on Monday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday evenings, when prices are usually at their highest.

What are the cheapest airlines that fly to Chicago?

The cheapest airlines flying from Sydney to Chicago are Qantas Airways, American Airlines and Air Canada.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 21 November 2025.
Get a feel of what it's like to fly with ANA, Air New Zealand, andQantas Airways to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
8.4
Very Good

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Boarding

8.6

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Reviews

1 / 20
10.0
Excellent

Julie,Sept 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

FAQs about flying to Chicago

Getting around Chicago

Chicago’s regular, grid-like layout makes navigation straightforward, but the “City With Big Shoulders” can be a little too large to get around easily on foot. Fortunately, the city’s public transportation system, including the famous “L” (short for “elevated train tracks”), is efficient, with especially good coverage in the city centre area. Traffic is often congested, especially during rush hour, and driving isn’t recommended. Cycling is a popular way to get around and with all of Chicago’s lakefront property, it can be a great way to enjoy the city.

Getting downtown from the airport

Chicago’s major airport is O’Hare International Airport (ORD) located in the city’s northwest corner, about 27 km away from the Loop. The Blue Line of the Chicago subway (known as the ‘L’ to locals) connects O’Hare directly to the city, and commuter rail services are easily accessible by a short shuttle ride. Taxi and car hire services are also available.

Travel Tips

One of the biggest challenges for visitors to Chicago can be the weather. Fiercely hot in the summer, the city is bitterly cold and windy in the winter. In the winter, wear layers and don’t expose skin to the wind; in summer, be sure to drink plenty of water.

  • Can I find cheaper flights to Chicago if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Chicago on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Chicago?

    Based on reviews from Cheapflights users, Qantas Airways is rated the highest out of the airlines that fly to Chicago.

  • What is the cheapest airport to fly to in Chicago?

    Chicago O'Hare Intl is currently the cheapest airport to fly to in Chicago. One-way flights to Chicago O'Hare Intl typically cost $51, while return flights cost around $183.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around $448, however they can be found for as little as $183.

  • Where does the fastest flight to Chicago depart from?

    For those looking to save time traveling to Chicago, Sydney Kingsford Smith offers the quickest one-way flight (20 hours 5 minutes).

  • Does Chicago O'Hare Intl have car hire?

    Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl?

    Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 km away from Chicago O'Hare Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find the best flight deals to Chicago

Some of the lowest fares we’ve come across for flights to Chicago.

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 to Chicago?

Cheapflights makes it easy to find Chicago flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets to Chicago?

Cheapflights helps you find that perfect flight to Chicago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Chicago with no change fees?

Certainly. Search results for flights to Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can track prices for flights to Chicago and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.