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Cheap flights from Adelaide to Chicago O'Hare Intl Airport from $2,255

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — ORD
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Adelaide to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Adelaide to O'Hare Intl
Explore the most affordable flight options available from Adelaide to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Mon 15/1214:55ADL - ORD
1 stop30h 35mUnited Airlines
Thu 8/112:45ORD - ADL
1 stop28h 15mUnited Airlines
Deal found 17/11$3,131
Mon 15/1206:15ADL - ORD
3 stops30h 24mMultiple Airlines
Sat 10/115:40ORD - ADL
2 stops38h 20mMultiple Airlines
Deal found 17/11$3,148
Sat 13/1214:55ADL - ORD
1 stop21h 17mUnited Airlines
Thu 8/118:29ORD - ADL
1 stop22h 31mUnited Airlines
Deal found 17/11$3,358
Mon 15/1214:55ADL - ORD
1 stop22h 42mUnited Airlines
Tue 13/116:16ORD - ADL
2 stops31h 34mUnited Airlines
Deal found 17/11$3,394
Mon 15/1214:55ADL - ORD
1 stop21h 19mUnited Airlines
Sun 11/118:29ORD - ADL
2 stops26h 56mUnited Airlines
Deal found 17/11$3,398
Mon 15/1214:55ADL - ORD
2 stops25h 34mUnited Airlines
Mon 12/118:29ORD - ADL
2 stops26h 56mUnited Airlines
Deal found 17/11$3,404
Tue 16/1207:15ADL - ORD
2 stops25h 55mUnited Airlines
Sun 11/116:16ORD - ADL
2 stops29h 09mUnited Airlines
Deal found 17/11$3,409
Tue 16/1207:15ADL - ORD
2 stops25h 55mUnited Airlines
Thu 8/118:29ORD - ADL
1 stop22h 31mUnited Airlines
Deal found 17/11$3,444
Mon 15/1207:50ADL - ORD
2 stops28h 15mQantas Airways
Sat 10/117:37ORD - ADL
2 stops47h 18mQantas Airways
Deal found 17/11$3,478
Mon 15/1212:00ADL - ORD
2 stops24h 05mQantas Airways
Sun 11/118:40ORD - ADL
2 stops26h 35mQantas Airways
Deal found 17/11$3,503
Mon 15/1214:55ADL - ORD
1 stop30h 35mUnited Airlines
Sat 10/108:45ORD - ADL
1 stop32h 15mUnited Airlines
Deal found 17/11$3,610

Cheap flight deals from Adelaide to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 November 2025.

Round-trip from

$1,916

Popular in

December

Cheapest in

May

Average price

$1,868
Air New Zealand
  • Air New Zealand
  • 19/3-28/4
  • 4 total stops
  • 52h 23m total
  • Adelaide to Chicago
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($447 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($136 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from Adelaide to Chicago O'Hare Intl Airport that are best for you.

Fly from

Adelaide

Fly to

O'Hare Intl

Route

Depart

Return

Price

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

06:05-12:55

2 stops47h 20m

Chicago O'Hare Intl

Wed 11/3

15:35-10:30

1 stop27h 25m

$2,255

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

18:55-19:55

2 stops40h 30m

Chicago O'Hare Intl

Wed 11/3

15:40-16:20

2 stops33h 10m

$2,520

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sun 8/3

11:55-04:18

2 stops32h 53m

Chicago O'Hare Intl

Wed 11/3

11:00-10:55

2 stops32h 25m

$2,556

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Thu 7/5

06:05-00:58

2 stops33h 23m

Chicago O'Hare Intl

Tue 30/6

21:05-10:05

2 stops46h 30m

$2,585

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Fri 1/5

06:05-20:22

2 stops28h 47m

Chicago O'Hare Intl

Tue 30/6

21:05-10:05

2 stops46h 30m

$2,661

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Sat 2/5

06:05-00:58

2 stops33h 23m

Chicago O'Hare Intl

Tue 30/6

14:25-11:05

2 stops30h 10m

$2,661

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Mon 4/5

12:40-00:41

3 stops26h 31m

Chicago O'Hare Intl

Tue 30/6

18:45-10:55

2 stops25h 40m

$2,684

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Best time to book a flight from Adelaide to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Adelaide 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 from Adelaide to Chicago O'Hare Intl Airport

What is the cheapest time of day to fly from ADL to ORD?

Find hourly flight availability from Adelaide to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2025.

One of the essential ways to save on airfare from Adelaide to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 20 November 2025.
Check out reviews from past customers who have flown with Qantas Airways from Adelaide to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
942 reviews
Check prices

Overall

7.5

Comfort

7.5

Boarding

7.7

Food

7.0

Crew

8.2

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
942 reviews
Qantas Airways
7.5
Good
942 reviews
Check prices

Overall

7.5

Comfort

7.5

Boarding

7.7

Food

7.0

Crew

8.2

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

Related info for your journey

Find useful and relevant information for your journey from Adelaide to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Adelaide to Chicago O'Hare Intl?

    Adelaide (ADL) is the airport you will fly out of if you book a flight from Adelaide to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Adelaide; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Adelaide airport to Chicago O'Hare Intl. It is only a 6.6 km journey to Adelaide (ADL) from Adelaide’s city centre.

  • How long is the flight from Adelaide to Chicago O'Hare Intl Airport?

    A quick flight from Adelaide to Chicago O'Hare Intl Airport can take about 47h 20m. Cathay Pacific provides one of the quickest options available for as low as $2,255. The distance from Adelaide to Chicago O'Hare Intl Airport is about 15937 km.

  • What is the cheapest airline to fly from Adelaide to Chicago O'Hare Intl Airport round-trip?

    Qantas Airways, at $1,207, was found to be the cheapest airline from Adelaide to Chicago O'Hare Intl Airport.. Qantas Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Adelaide to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Adelaide to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Adelaide to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to O'Hare Intl.

  • Can I find deals for business class flights from Adelaide to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Adelaide to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Adelaide to O'Hare Intl

Discover the top airline that operate flights from Adelaide to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,207Average$1,625FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

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How does Cheapflights help users find flights from Adelaide to O'Hare Intl?

When you search for this flight from Adelaide to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Adelaide to O'Hare Intl?

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Can Cheapflights find flights from Adelaide to O'Hare Intl with no change fees?

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Can Cheapflights notify me if prices for flights from Adelaide to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Adelaide to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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