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

Direct flights offer convenience by reducing travel time and avoiding layovers, but they are not always the cheapest option. Flights with connections can sometimes be more affordable, especially for longer distances. Consider your budget and time constraints when making your choice.

Can flexible travel dates help on Chicago to Adelaide flights?

Yes, being flexible with your travel dates can often lead to finding more affordable flights. Prices can vary significantly depending on the day of the week or season. Adjusting your departure or return by a few days may unlock better deals.

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 also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

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 5 days ago

481 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Oct 19, 2026.)

Today’s best flight deals from Chicago to Adelaide

Explore current cheapest deals departing from Chicago to Adelaide

2026-11-17 – 2026-12-07
CHI - Adelaide
74% AI deal score
$1,189
$1,395
Round trip
2026-11-17 – 2026-12-03
CHI - Adelaide
73% AI deal score
$1,195
$1,405
Round trip
2026-11-10 – 2026-12-07
CHI - Adelaide
73% AI deal score
$1,186
$1,416
Round trip
2026-11-10 – 2026-12-03
CHI - Adelaide
72% AI deal score
$1,186
$1,426
Round trip
2026-11-26 – 2026-12-07
CHI - Adelaide
74% AI deal score
$1,199
$1,439
Round trip
2026-11-17 – 2026-12-05
CHI - Adelaide
73% AI deal score
$1,194
$1,447
Round trip
2026-11-26 – 2026-12-03
CHI - Adelaide
73% AI deal score
$1,247
$1,449
Round trip
2026-11-03 – 2026-12-03
CHI - Adelaide
72% AI deal score
$1,199
$1,453
Round trip
2026-11-10 – 2026-12-05
CHI - Adelaide
72% AI deal score
$1,186
$1,467
Round trip
2026-11-10 – 2026-11-19
CHI - Adelaide
72% AI deal score
$1,222
$1,476
Round trip

Chicago to Adelaide: Overview

How much is a round trip from Chicago to Adelaide

Regular price: $1,274 - $2,398

Prices are currently within the regular range.

The regular price range for flights from Chicago to Adelaide is between $1274 and $2398. The current lowest deal is $1329 with Frontier Airlines for travel from Dec 2-Dec 7.

now $1,329

Low $1,274

High $2,398

The cheapest time to fly from Chicago to Adelaide

The cheapest month to fly from Chicago to Adelaide is March, with a median price of $1887. Prices are generally lower from March to November. The most expensive month is December, with a median price of $3008.

March

Cheapest

Flights from $1,887

December

Most Expensive

Flights from $3,008

Mar

Oct

Nov

Dec

Direct flights from Chicago to Adelaide

QantasLink

Jetstar

Alaska Airlines, Inc.

Frontier Airlines

Last-minute flights going from Chicago to Adelaide

Tue, Oct 20

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

QantasLink

$1,520

$1,398

One-way

Wed, Oct 21

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Iberia Airlines, Emirates Airlines

$1,444

$3,791

One-way

Sat, Oct 24

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Cathay Pacific

$1,741

$3,264

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,415

$2,736

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,296

$2,736

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,313

$2,736

One-way

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

5 nights

Dec 2 - Dec 7

$1,546 → $1,329

14%

3 nights

Dec 2 - Dec 5

$1,560 → $1,381

11%

7 nights

Dec 3 - Dec 10

$1,501 → $1,498

4 nights

Nov 4 - Nov 8

$1,352 → $1,390

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Chicago to Adelaide are below the typical level, with a median price of $1546.

📅 Best time to fly

September is historically cheapest

Historically, September is the cheapest month to fly from Chicago to Adelaide, with a median price of $1173.

⏱️ Flight duration

Connecting flights take 34h 50m

Connecting flights from Chicago to Adelaide typically take 34h 50m, covering a long-haul distance of 15948 km.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant on this route, with a median of 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a recent deal

Frontier Airlines recently offered a deal for $1329 from Chicago to Adelaide.

🎯 Booking tip

Deals are rare on this route

Deals on flights from Chicago to Adelaide are rare, appearing infrequently over a 30-day window.

Chicago main airports to depart from

O Hare International (ORD)

Cheapest

O'Hare International Airport (ORD) is a good option for flights from Chicago to Adelaide.

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

💸 Flights from ~$1,500

Adelaide main airports to arrive at

Adelaide (ADL)

Cheapest

Adelaide Airport is ideal for direct access to Adelaide and surrounding South Australia.

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

💸 Flights from ~$1,454

Airports nearby Adelaide used as alternative

Melbourne (MEL)

Cheapest

Melbourne (MEL) is a major international hub offering more flight options for international and long-haul travel.

📍 ~650 km from Adelaide (reachable by car or connecting flight)

💸 Flights from ~$1,244

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

Oct 24

Adelaide, Australia

83% AI deal score

$9,180

$7,339

Save $1,841

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Nov 24

Adelaide, Australia

81% AI deal score

$7,906

$6,814

Save $1,092

Air Canada, +1

Business Class

From ORD

Elite

Dec 01

Adelaide, Australia

81% AI deal score

$8,215

$7,016

Save $1,199

Air Canada, +1

Business Class

From ORD

Elite

Nov 26

Adelaide, Australia

80% AI deal score

$7,964

$6,881

Save $1,083

Air Canada, +1

Business Class

From ORD

Elite

Nov 18

Adelaide, Australia

80% AI deal score

$8,023

$7,018

Save $1,005

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Dec 10

Adelaide, Australia

80% AI deal score

$8,131

$7,197

Save $934

Air Canada, +1

Business Class

From ORD

Elite

Dec 10

Adelaide, Australia

80% AI deal score

$8,080

$7,197

Save $883

Air Canada, +1

Business Class

From ORD

Elite

Nov 24

Adelaide, Australia

80% AI deal score

$8,023

$7,239

Save $784

Air Canada, +1

Business Class

From ORD

Elite

Dec 10

Adelaide, Australia

80% AI deal score

$8,167

$7,294

Save $873

Air Canada, +1

Business Class

From ORD

Elite

Nov 18

Adelaide, Australia

79% AI deal score

$7,750

$6,998

Save $752

Alaska Airlines, Inc., +1

Business Class

From ORD

Elite

Nov 28

Adelaide, Australia

79% AI deal score

$8,006

$7,027

Save $979

Air Canada, +1

Business Class

From ORD

Elite

Nov 24

Adelaide, Australia

79% AI deal score

$7,892

$7,225

Save $667

Air Canada, +1

Business Class

Frequently Asked Questions About Flights to Adelaide

To find potentially cheaper flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can also help you identify better deals. Setting up price alerts may notify you when fares drop for your desired route.

Booking flights in advance often provides more options and potentially better prices, though last-minute deals can sometimes appear. Prices can fluctuate, so monitoring fares over time may help you decide on an optimal booking window. Weekday bookings sometimes offer different pricing compared to weekends.

Comparing nearby airports can sometimes reveal alternative flight options or different pricing. While it might add to your ground travel time, the potential savings on airfare could be worthwhile. Always consider the total cost and convenience when evaluating this option.

Related routes

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Flights to Adelaide from other cities

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Chicago to Adelaide: Overview

How much is a round trip from Chicago to Adelaide

Regular price: $1,274 - $2,398

Prices are currently within the regular range.

The regular price range for flights from Chicago to Adelaide is between $1274 and $2398. The current lowest deal is $1329 with Frontier Airlines for travel from Dec 2-Dec 7.

now $1,329

Low $1,274

High $2,398

The cheapest time to fly from Chicago to Adelaide

March

Cheapest

Flights from $1,887

December

Most Expensive

Flights from $3,008

Mar

Oct

Nov

Dec

Direct flights from Chicago to Adelaide

QantasLink

Jetstar

Alaska Airlines, Inc.

Frontier Airlines

Last-minute flights going from Chicago to Adelaide

Tue, Oct 20

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

QantasLink

$1,520

$1,398

One-way

Wed, Oct 21

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Iberia Airlines, Emirates Airlines

$1,444

$3,791

One-way

Sat, Oct 24

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Cathay Pacific

$1,741

$3,264

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,415

$2,736

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,296

$2,736

One-way

Tue, Oct 27

⌛ Last-Minute

ORD - Adelaide

Chicago (ORD) - Adelaide (ADL)

Finnair, Emirates Airlines

$1,313

$2,736

One-way

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

5 nights

Dec 2 - Dec 7

$1,546 → $1,329

14%

3 nights

Dec 2 - Dec 5

$1,560 → $1,381

11%

7 nights

Dec 3 - Dec 10

$1,501 → $1,498

4 nights

Nov 4 - Nov 8

$1,352 → $1,390

Popular Airports to fly from Chicago to Adelaide

Chicago - Adelaide route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Chicago to Adelaide are below the typical level, with a median price of $1546.

📅 Best time to fly

September is historically cheapest

Historically, September is the cheapest month to fly from Chicago to Adelaide, with a median price of $1173.

⏱️ Flight duration

Connecting flights take 34h 50m

Connecting flights from Chicago to Adelaide typically take 34h 50m, covering a long-haul distance of 15948 km.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant on this route, with a median of 2 stopovers.

🏆 Airline highlight

Frontier Airlines offers a recent deal

Frontier Airlines recently offered a deal for $1329 from Chicago to Adelaide.

🎯 Booking tip

Deals are rare on this route

Deals on flights from Chicago to Adelaide are rare, appearing infrequently over a 30-day window.

Chicago main airports to depart from

O Hare International (ORD)

Cheapest

O'Hare International Airport (ORD) is a good option for flights from Chicago to Adelaide.

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

💸 Flights from ~$1,500

Adelaide main airports to arrive at

Adelaide (ADL)

Cheapest

Adelaide Airport is ideal for direct access to Adelaide and surrounding South Australia.

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

💸 Flights from ~$1,454

Airports nearby Adelaide used as alternative

Melbourne (MEL)

Cheapest

Melbourne (MEL) is a major international hub offering more flight options for international and long-haul travel.

Adelaide, Australia

79% AI deal score

$7,892

$7,225

Save $667

Air Canada, +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

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

September is historically cheapest

Connecting flights take 34h 50m

Connecting flights are dominant

Frontier Airlines offers a recent deal

Deals are rare on 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

Oct 24

Nov 24

Dec 01

Nov 26

Nov 18

Dec 10

Dec 10

Nov 24

Dec 10

Nov 18

Nov 28

Nov 24

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

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

September is historically cheapest

Connecting flights take 34h 50m

Connecting flights are dominant

Frontier Airlines offers a recent deal

Deals are rare on 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

Oct 24

Nov 24

Dec 01

Nov 26

Nov 18

Dec 10

Dec 10

Nov 24

Dec 10

Nov 18

Nov 28

Nov 24

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?