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

Direct flights can offer convenience and save travel time, but they are not always the most budget-friendly choice. Flights with layovers or connecting flights may sometimes be more affordable. Consider your priorities for time versus cost when making your decision.

Can flexible travel dates help on Chicago to Adelaide flights?

Yes, being flexible with your travel dates can often lead to finding cheaper flights. Prices for airfare can vary significantly depending on the day of the week or season. Adjusting your departure or return by a few days may result in notable savings.

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

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may charge for amenities that others include. Understanding these additional expenses can help you calculate the true total cost of your journey.

Flights From Chicago

To Adelaide

Cheap Flights from Chicago to Adelaide

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 Adelaide

Prices updated 1 day ago

459 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 8, 2026.)

Today’s best flight deals from Chicago to Adelaide

Explore current cheapest deals departing from Chicago to Adelaide

2026-10-12 – 2026-10-19
CHI - Adelaide
75% AI deal score
$1,294
$1,311
Round trip
2026-11-23 – 2026-11-29
CHI - Adelaide
75% AI deal score
$1,274
$1,311
Round trip
2026-11-21 – 2026-11-29
CHI - Adelaide
75% AI deal score
$1,252
$1,313
Round trip
2026-10-11 – 2026-10-18
CHI - Adelaide
75% AI deal score
$1,294
$1,314
Round trip
2026-11-10 – 2026-11-24
CHI - Adelaide
76% AI deal score
$1,216
$1,418
Round trip
2026-10-17 – 2026-10-20
CHI - Adelaide
72% AI deal score
$1,341
$1,522
Round trip
2026-10-17 – 2026-10-21
CHI - Adelaide
72% AI deal score
$1,344
$1,523
Round trip
2026-10-05 – 2026-10-12
CHI - Adelaide
75% AI deal score
$1,297
$1,573
Round trip
2026-10-17 – 2026-10-22
CHI - Adelaide
71% AI deal score
$1,329
$1,574
Round trip
2026-10-06 – 2026-10-13
CHI - Adelaide
70% AI deal score
$1,296
$1,581
Round trip

Chicago to Adelaide: Overview

Insights for flights from Chicago to Adelaide

A typical journey from Chicago to Adelaide takes about 31h 33m, including connections. Given that most itineraries involve at least one stop, this duration reflects the overall travel time for this long-haul route. You will find that most itineraries connect at least once, with a median of 2 stopovers for connecting flights.

For travelers seeking cheap flights from Chicago to Adelaide, fares right now are significantly below the typical level. Prices for this route typically range from $805–$1922, with a median of $1022. Deals are infrequent, so setting up a price alert can be beneficial to catch the best fares.

When is the cheapest time to fly from Chicago to Adelaide? The most affordable month to fly is typically April, with a median fare of $543. Following April, May also offers competitive prices, with a median fare of $805. January is another option, with a median fare of $1022.

The distance between Chicago and Adelaide is approximately 15,948 kilometers, classifying this as a long-haul journey. This substantial distance contributes to the extended travel times and the necessity for connecting flights.

How much is a round trip from Chicago to Adelaide

Regular price: $1,157 - $1,840

Prices for flights from Chicago to Adelaide are currently within the regular range.

The regular price range for this route is $1157 to $1840. The current lowest deal is $1248 with Frontier Airlines for travel from Oct 17-Oct 21.

now $1,248

Low $1,157

High $1,840

The cheapest time to fly from Chicago to Adelaide

The cheapest month to fly from Chicago to Adelaide is April, with a median price of $543. The most expensive month is January, with a median price of $1022. Prices are generally lower from April to May.

April

Cheapest

Flights from $543

January

Most Expensive

Flights from $1,022

Jan

Apr

May

Direct flights from Chicago to Adelaide

Frontier Airlines

Jetstar

Alaska Airlines, Inc.

QantasLink

Last-minute flights going from Chicago to Adelaide

Wed, Sep 2

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Qatar Airways

$1,601

$2,112

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Air Canada

$1,419

$1,739

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Air Canada, QantasLink

$1,705

$1,812

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,428

$2,102

One-way

Mon, Sep 7

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,395

$2,102

One-way

Mon, Sep 7

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,387

$2,102

One-way

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

2 nights

Sep 11 - Sep 13

$1,935 → $2,014

15 nights

Sep 13 - Sep 28

$1,419 → $1,524

7 nights

Sep 11 - Sep 18

$1,650 → $1,886

14%

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Chicago to Adelaide are below the typical level at $1248.

📅 Best time to fly

Fly in April for the lowest prices

Historically, April is the cheapest month to fly, with median prices around $543.

⏱️ Flight duration

Expect long-haul flights with 2+ stops

Flights to Adelaide typically take 31h 33m, with connecting routes being dominant.

✈️ Airlines & availability

Connecting flights are the only option

There are no direct flights; expect at least two stopovers on this long-haul route.

🏆 Airline highlight

Frontier Airlines offers many deals

Frontier Airlines has 21 deals, making it a frequent option for this route.

🎯 Booking tip

Deals are rare for this route

Deals for flights from Chicago to Adelaide are historically rare, so book when you see a good price.

Chicago main airports to depart from

O Hare International (ORD)

Cheapest

O'Hare International Airport offers flights to Adelaide, providing a convenient option for your journey.

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

💸 Flights from ~$1,265

Chicago Midway International (MDW)

Chicago Midway International Airport is an alternative for flights to Adelaide.

📍 ~14 km from Chicago city center (reachable by car or train)

💸 Flights from ~$1,485

Chicago Rockford International (RFD)

Chicago Rockford International Airport is another option for flights to Adelaide.

📍 ~126 km from Chicago city center (reachable by car)

💸 Flights from ~$1,857

Adelaide main airports to arrive at

Adelaide (ADL)

Cheapest

Adelaide Airport is a great choice for direct access to Adelaide from Chicago.

📍 ~7 km from city center (reachable by car)

💸 Flights from ~$1,245

Airports nearby Adelaide used as alternative

Melbourne (MEL)

Cheapest

Melbourne (MEL) is a major international hub with significantly more flight options than Adelaide.

📍 ~600 km from Adelaide (reachable by car or connecting flight)

💸 Flights from ~$1,115

Business & First Class Flight Deals to Adelaide

Discover luxury on the budget with premium cabin class on flights from Chicago to Adelaide.

Elite

Best Elite deals to Adelaide

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From ORD

Elite

Dec 25

Adelaide, Australia

86% AI deal score

$9,102

$6,993

Save $2,109

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 23

Adelaide, Australia

86% AI deal score

$9,042

$7,032

Save $2,010

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 22

Adelaide, Australia

86% AI deal score

$9,003

$7,032

Save $1,971

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 30

Adelaide, Australia

86% AI deal score

$9,055

$7,070

Save $1,985

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 28

Adelaide, Australia

85% AI deal score

$9,092

$7,169

Save $1,923

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 08

Adelaide, Australia

82% AI deal score

$8,657

$7,041

Save $1,616

Air Canada, +1

Business Class

From ORD

Elite

Dec 10

Adelaide, Australia

81% AI deal score

$8,721

$7,179

Save $1,542

Air Canada, +1

Business Class

From ORD

Elite

Dec 25

Adelaide, Australia

81% AI deal score

$9,078

$7,366

Save $1,712

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 25

Adelaide, Australia

81% AI deal score

$9,442

$7,366

Save $2,076

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 08

Adelaide, Australia

81% AI deal score

$8,939

$7,401

Save $1,538

Air Canada, +1

Business Class

From ORD

Elite

Dec 08

Adelaide, Australia

81% AI deal score

$8,693

$7,401

Save $1,292

Air Canada, +1

Business Class

From ORD

Elite

Dec 23

Adelaide, Australia

81% AI deal score

$9,133

$7,405

Save $1,728

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Adelaide

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking platforms can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking in advance is often recommended for international flights, as prices may increase closer to the departure date. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday bookings sometimes offer different pricing compared to weekends.

Comparing nearby airports at both your origin and destination can sometimes lead to more economical flight options. While it may involve additional ground travel, the savings on airfare can be significant. Always factor in the total cost and convenience when considering this approach.

Related routes

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Flights to Adelaide from other cities

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Chicago to Adelaide: Overview

Insights for flights from Chicago to Adelaide

How much is a round trip from Chicago to Adelaide

Regular price: $1,157 - $1,840

Prices for flights from Chicago to Adelaide are currently within the regular range.

The regular price range for this route is $1157 to $1840. The current lowest deal is $1248 with Frontier Airlines for travel from Oct 17-Oct 21.

now $1,248

Low $1,157

High $1,840

The cheapest time to fly from Chicago to Adelaide

April

Cheapest

Flights from $543

January

Most Expensive

Flights from $1,022

Jan

Apr

May

Direct flights from Chicago to Adelaide

Frontier Airlines

Jetstar

Alaska Airlines, Inc.

QantasLink

Last-minute flights going from Chicago to Adelaide

Wed, Sep 2

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Qatar Airways

$1,601

$2,112

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Air Canada

$1,419

$1,739

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Air Canada, QantasLink

$1,705

$1,812

One-way

Sun, Sep 6

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,428

$2,102

One-way

Mon, Sep 7

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,395

$2,102

One-way

Mon, Sep 7

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

United Airlines

$1,387

$2,102

One-way

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

2 nights

Sep 11 - Sep 13

$1,935 → $2,014

15 nights

Sep 13 - Sep 28

$1,419 → $1,524

7 nights

Sep 11 - Sep 18

$1,650 → $1,886

14%

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Chicago to Adelaide are below the typical level at $1248.

📅 Best time to fly

Fly in April for the lowest prices

Historically, April is the cheapest month to fly, with median prices around $543.

⏱️ Flight duration

Expect long-haul flights with 2+ stops

Flights to Adelaide typically take 31h 33m, with connecting routes being dominant.

✈️ Airlines & availability

Connecting flights are the only option

There are no direct flights; expect at least two stopovers on this long-haul route.

🏆 Airline highlight

Frontier Airlines offers many deals

Frontier Airlines has 21 deals, making it a frequent option for this route.

🎯 Booking tip

Deals are rare for this route

Deals for flights from Chicago to Adelaide are historically rare, so book when you see a good price.

Chicago main airports to depart from

O Hare International (ORD)

Cheapest

O'Hare International Airport offers flights to Adelaide, providing a convenient option for your journey.

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

💸 Flights from ~$1,265

Chicago Midway International (MDW)

Chicago Midway International Airport is an alternative for flights to Adelaide.

📍 ~14 km from Chicago city center (reachable by car or train)

💸 Flights from ~$1,485

Chicago Rockford International (RFD)

Chicago Rockford International Airport is another option for flights to Adelaide.

📍 ~126 km from Chicago city center (reachable by car)

💸 Flights from ~$1,857

Adelaide main airports to arrive at

Adelaide (ADL)

Cheapest

Adelaide Airport is a great choice for direct access to Adelaide from Chicago.

📍 ~7 km from city center (reachable by car)

💸 Flights from ~$1,245

Airports nearby Adelaide used as alternative

Melbourne (MEL)

Cheapest

Melbourne (MEL) is a major international hub with significantly more flight options than Adelaide.

Adelaide, Australia

81% AI deal score

$9,133

$7,405

Save $1,728

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Adelaide

Cheap Flights from Chicago to Adelaide

Today’s best flight deals from Chicago to Adelaide

Chicago to Adelaide: Overview

Insights for flights from Chicago to Adelaide

How much is a round trip from Chicago to Adelaide

The cheapest time to fly from Chicago to Adelaide

Direct flights from Chicago to Adelaide

Last-minute flights going from Chicago to Adelaide

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

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

Recent fares are below the typical level

Fly in April for the lowest prices

Expect long-haul flights with 2+ stops

Connecting flights are the only option

Frontier Airlines offers many deals

Deals are rare for this route

Chicago main airports to depart from

Adelaide main airports to arrive at

Airports nearby Adelaide used as alternative

Business & First Class Flight Deals to Adelaide

Best Elite deals to Adelaide

Dec 25

Dec 23

Dec 22

Dec 30

Dec 28

Dec 08

Dec 10

Dec 25

Dec 25

Dec 08

Dec 08

Dec 23

Frequently Asked Questions About Flights to Adelaide

How can I find cheap flights from Chicago to Adelaide?

When should I book flights from Chicago to Adelaide?

Should I compare nearby airports for flights from Chicago to Adelaide?

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

Can flexible travel dates help on Chicago to Adelaide flights?

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

Related routes

More routes from Chicago

Flights to Adelaide from other cities

Chicago to Adelaide: Overview

Insights for flights from Chicago to Adelaide

How much is a round trip from Chicago to Adelaide

The cheapest time to fly from Chicago to Adelaide

Direct flights from Chicago to Adelaide

Last-minute flights going from Chicago to Adelaide

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

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

Recent fares are below the typical level

Fly in April for the lowest prices

Expect long-haul flights with 2+ stops

Connecting flights are the only option

Frontier Airlines offers many deals

Deals are rare for this route

Chicago main airports to depart from

Adelaide main airports to arrive at

Airports nearby Adelaide used as alternative

Business & First Class Flight Deals to Adelaide

Best Elite deals to Adelaide

Dec 25

Dec 23

Dec 22

Dec 30

Dec 28

Dec 08

Dec 10

Dec 25

Dec 25

Dec 08

Dec 08

Dec 23

Frequently Asked Questions About Flights to Adelaide

How can I find cheap flights from Chicago to Adelaide?

When should I book flights from Chicago to Adelaide?

Should I compare nearby airports for flights from Chicago to Adelaide?