Are direct flights from Chicago to Sydney always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers, but they are not always the cheapest option. Flights with one or more connections can sometimes be significantly more affordable. Consider your priorities for cost versus travel time when making your decision.

Can flexible travel dates help on Chicago to Sydney flights?

Yes, being flexible with your travel dates can often lead to substantial savings on flights. Prices for the same route can vary significantly depending on the day of the week or time of year. Adjusting your departure or return by a few days may unlock cheaper fares.

What extra costs should I check before booking Chicago to Sydney flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight meal costs. Some airlines may also charge for amenities like Wi-Fi or entertainment. Factoring these into your total budget can prevent surprises.

Flights From Chicago

To Sydney

Cheap Flights from Chicago to Sydney

Browse current best options from Chicago. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Chicago

RatePunk searches hundreds of travel sites at once for deals on flights to Sydney

Prices updated today

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Chicago to Sydney

Explore current cheapest deals departing from Chicago to Sydney

Round trip

Sort by: Cheapest

August 18 - August 25

Cheapest

Best

ORD - Sydney

$1,272

$1,072

Round trip

September 22 - September 29

MDW - Sydney

$1,277

$1,126

Round trip

September 16 - September 23

MDW - Sydney

$1,265

$1,130

Round trip

September 25 - September 29

MDW - Sydney

$1,312

$1,136

Round trip

September 8 - September 18

MDW - Sydney

$1,208

$1,145

Round trip

August 14 - August 28

Earliest

ORD - Sydney

$1,211

$1,164

Round trip

August 15 - August 18

ORD - Sydney

$1,338

$1,201

Round trip

November 4 - November 17

ORD - Sydney

$1,245

$1,230

Round trip

November 1 - November 15

ORD - Sydney

$1,227

$1,260

Round trip

November 1 - November 20

ORD - Sydney

$1,224

$1,267

Round trip

Unlock all 500+ flight deals to Sydney and get alerts when great deals appear

Chicago to Sydney: Overview

Insights for flights from Chicago to Sydney

Flights from Chicago to Sydney cover a substantial distance of 14,862 kilometers, classifying this as a long-haul international journey. This significant distance means you should anticipate a comprehensive travel experience.

For travelers seeking cheap flights from Chicago to Sydney, fares right now are typically between $1594 and $2036, with a median price of $1762. Currently, fares are above the typical level, and only 1% of recent fares were classified as a good price. New deals show up several times a week, so setting up a price alert can be beneficial.

When considering the cheapest time to fly from Chicago to Sydney, May stands out with a median fare of $1002. April is also a more affordable option, with a median fare of $1226. Additionally, December offers a median fare of $1508, presenting another relatively cheaper period for this route.

There are no direct flights from Chicago to Sydney; most itineraries connect at least once. In fact, when connecting, the typical number of stopovers is 2. This means you should plan for a journey that includes multiple segments.

A typical journey from Chicago to Sydney, including connections, takes approximately 53h 19m. Given that most itineraries involve at least two stopovers, this duration reflects the comprehensive nature of traveling such a long distance with connecting flights.

How much is a round trip from Chicago to Sydney

Regular price: $1,132 - $1,861

Prices are currently within the regular range.

The regular price range for flights from Chicago to Sydney is $1132 to $1861. The current lowest deal is $1137 with Frontier Airlines for travel from Aug 18-Aug 25.

now $1,137

Low $1,132

High $1,861

The cheapest time to fly from Chicago to Sydney

The cheapest month to fly from Chicago to Sydney is May, with a median price of $1002. The most expensive month is September, with a median price of $2352. Prices are generally lower from April to December.

May

Cheapest

Flights from $1,002

September

Most Expensive

Flights from $2,352

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Nov

Dec

Direct flights from Chicago to Sydney

Frontier Airlines

All Nippon Airways

QantasLink

Air Canada

Last-minute flights going from Chicago to Sydney

Mon, Aug 3

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,192

$1,358

One-way

Tue, Aug 4

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,196

$1,236

One-way

Wed, Aug 5

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,195

$1,330

One-way

Sat, Aug 8

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,340

$1,307

One-way

Mon, Aug 10

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,212

$1,284

One-way

Mon, Aug 10

⌛ Last-Minute

ORD - Sydney

Chicago (ORD) - Sydney (SYD)

Frontier Airlines

$1,210

$1,376

One-way

Biggest price drops on these dates for flights from Chicago to Sydney

11 nights

Dec 2 - Dec 13

$1,609 → $1,267

21%

11 nights

Dec 10 - Dec 21

$1,627 → $1,349

17%

14 nights

Dec 8 - Dec 22

$1,640 → $1,369

17%

7 nights

Aug 18 - Aug 25

$1,272 → $1,072

16%

Popular Airports to fly from Chicago to Sydney

Chicago - Sydney route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Chicago to Sydney are above the typical level at $1137.

📅 Best time to fly

Fly in May for prices around $1002

Historically, May is the cheapest month to fly, with median prices around $1002.

⏱️ Flight duration

Expect flights to take 53h 19m

Flights from Chicago to Sydney typically take 53h 19m, with 2 or more stopovers.

✈️ Airlines & availability

Connecting flights only

No direct flights are available. Consider connecting flights for this long-haul route.

🏆 Airline highlight

Frontier Airlines offers deals from Chicago to Sydney

Frontier Airlines has recently offered deals on connecting flights from Chicago to Sydney.

🎯 Booking tip

Deals appear regularly

Deals on flights from Chicago to Sydney appear regularly, about every 30 days.

Chicago main airports to depart from

O Hare International (ORD)

Cheapest

O'Hare International Airport offers flights to Sydney, with prices starting from $1106.

📍 ~25 km from Chicago city center (reachable by car or train).

💸 Flights from ~$1106

Chicago Midway International (MDW)

Chicago Midway International Airport is an alternative departure option for flights to Sydney.

📍 ~15 km from Chicago city center (reachable by car or train).

💸 Flights from ~$1403

Chicago Rockford International (RFD)

Chicago Rockford International Airport is another departure option for flights to Sydney.

📍 ~120 km from Chicago city center (reachable by car).

💸 Flights from ~$1740

Sydney main airports to arrive at

Sydney (SYD)

Cheapest

Sydney Airport is the primary international gateway to Sydney, offering convenient access to the city.

📍 ~8 km from city center (reachable by car)

💸 Flights from ~$1106

Airports nearby Sydney used as alternative

Canberra (CBR)

Canberra Airport is a major domestic and international-capable airport, offering a full range of cabin classes.

📍 ~240 km from Sydney (approximately 3 hours drive from Sydney city center)

💸 Flights from ~$1,473

Newcastle (NTL)

Cheapest

Newcastle Airport is a significant regional hub with frequent domestic service and premium cabin classes.

📍 ~135 km from Sydney (reachable by car)

💸 Flights from ~$1,444

Coffs Harbour (CFS)

Coffs Harbour Airport is an established regional airport with reliable commercial service and premium cabin options.

📍 ~440 km from Sydney (significant distance of over 400km from Sydney)

💸 Flights from ~$1,631

Albury (ABX)

Albury Airport is a key regional gateway with a consistent commercial schedule and business class service.

📍 ~460 km from Sydney (long distance from Sydney makes it less practical for short trips)

💸 Flights from ~$1,646

Illawarra Regional (WOL)

Illawarra Regional Airport is geographically the closest alternative, with easy road access from southern Sydney.

📍 ~80 km from Sydney (extremely limited commercial flight schedule)

Business & First Class Flight Deals to Sydney

Sydney, Australia

71% AI deal score

$9,090

Frequently Asked Questions About Flights to Sydney

Finding affordable flights often involves comparing prices from various airlines and online travel agencies. Being flexible with your travel dates and considering different airports can also help uncover better deals. Setting up price alerts may notify you when fares drop.

Booking flights in advance often provides more options and potentially lower prices, though last-minute deals can sometimes appear. Prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday bookings are sometimes cheaper than weekend bookings.

Comparing nearby airports at both your origin and destination can sometimes reveal more economical flight options. Even if an airport is a bit further, the savings on airfare might outweigh the additional travel time or cost to reach it. It's always a good idea to check all available possibilities.

Related routes

Consider alternative routes from Chicago

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