$678+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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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 27 November 2025.

Thu 4/1210:40SYD - MDW
2 stops30h 07mDelta
Mon 8/1219:02MDW - SYD
2 stops44h 28mDelta
Deal found 25/11$1,800
Thu 25/1214:15SYD - ORD
2 stops36h 10mDelta
Fri 23/106:50ORD - SYD
2 stops32h 40mDelta
Deal found 26/11$1,876
Thu 25/1217:45SYD - ORD
1 stop30h 14mAmerican Airlines
Fri 23/115:10ORD - SYD
1 stop24h 50mAmerican Airlines
Deal found 26/11$1,936
Thu 25/1211:20SYD - ORD
1 stop21h 29mMultiple Airlines
Sat 10/109:15ORD - SYD
2 stops30h 45mMultiple Airlines
Deal found 26/11$1,971
Thu 25/1211:20SYD - ORD
1 stop22h 31mQantas Airways
Sat 10/119:40ORD - SYD
1 stop41h 30mQantas Airways
Deal found 26/11$2,086
Wed 17/1217:30SYD - ORD
2 stops29h 35mMultiple Airlines
Fri 2/105:00ORD - SYD
2 stops33h 25mMultiple Airlines
Deal found 26/11$2,129
Thu 25/1212:10SYD - ORD
2 stops21h 49mUnited Airlines
Sat 10/112:53ORD - SYD
2 stops27h 22mUnited Airlines
Deal found 26/11$2,169
Thu 25/1216:00SYD - ORD
2 stops45h 10mAir Canada
Sat 10/115:35ORD - SYD
1 stop22h 20mAir Canada
Deal found 26/11$2,203
Mon 15/1217:45SYD - ORD
1 stop23h 14mQantas Airways
Tue 30/1216:34ORD - SYD
1 stop23h 26mQantas Airways
Deal found 25/11$2,206
Mon 15/1217:45SYD - ORD
1 stop29h 20mMultiple Airlines
Tue 30/1209:34ORD - SYD
3 stops34h 51mMultiple Airlines
Deal found 25/11$2,209
Thu 25/1214:15SYD - MDW
2 stops25h 07mDelta
Sat 10/113:28MDW - SYD
2 stops24h 22mDelta
Deal found 26/11$2,394
Mon 15/1217:45SYD - MDW
2 stops32h 01mMultiple Airlines
Tue 30/1206:14MDW - SYD
2 stops33h 46mMultiple Airlines
Deal found 25/11$2,575

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 27 November 2025.

Return from

$1,551

One-way from

$678

Popular in

December

Cheapest in

March

Average price

$1,776
American Airlines
  • American Airlines
  • 16/5-6/6
  • 2 total stops
  • 71h 37m total
  • Sydney to Chicago
5/12
  • 5/12
  • 2 total stops
  • 27h 13m total
  • Sydney to Chicago
Highest demand for flights based on searches. 21% potential increase in price ($424 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($68 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 27 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

09:10-23:59

1 stop29h 49m

Chicago O'Hare Intl

Sat 6/6

22:17-07:05

1 stop41h 48m

$1,551

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 16/5

11:55-22:42

2 stops25h 47m

Chicago O'Hare Intl

Sat 6/6

16:40-08:45

2 stops25h 05m

$1,830

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 25/12

14:15-09:25

2 stops36h 10m

Chicago O'Hare Intl

Fri 23/1

06:50-08:30

2 stops32h 40m

$1,876

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 25/12

17:45-06:59

1 stop30h 14m

Chicago O'Hare Intl

Fri 23/1

15:10-09:00

1 stop24h 50m

$1,936

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 21/5

09:20-07:58

2 stops37h 38m

Chicago O'Hare Intl

Thu 28/5

08:40-07:20

3 stops31h 40m

$1,966

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 25/12

11:20-15:49

1 stop21h 29m

Chicago O'Hare Intl

Sat 10/1

09:15-09:00

2 stops30h 45m

$1,971

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 16/5

09:10-15:56

1 stop21h 46m

Chicago O'Hare Intl

Sat 6/6

18:45-07:05

1 stop21h 20m

$2,073

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 17/12

17:30-06:05

2 stops29h 35m

Chicago O'Hare Intl

Fri 2/1

05:00-07:25

2 stops33h 25m

$2,129

SydneyChicago

SYD - MDW

SYDMDW

Sydney Kingsford Smith

Thu 21/5

09:25-18:31

2 stops24h 06m

Chicago Midway

Thu 28/5

13:05-06:35

2 stops26h 30m

$2,136

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 26/4

15:00-22:59

3 stops46h 59m

Chicago O'Hare Intl

Wed 29/4

17:00-05:55

2 stops45h 55m

$2,152

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 31 results
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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 21 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 8 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 27 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.

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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.

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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.

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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.

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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.

Crew

8.7

Comfort

8.2

Boarding

8.6

Overall

8.4

Food

7.7

Entertainment

7.9

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 $50, while return flights cost around $74.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around $442, however they can be found for as little as $74.

  • Where does the fastest flight to Chicago depart from?

    For those looking to save time traveling to Chicago, Brisbane offers the quickest one-way flight (19 hours 6 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

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