Cheap Flights from Chicago to Adelaide

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Find the cheapest month or even day of the year to fly to Adelaide

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Flight deals from Chicago to Adelaide Airport

Looking for a cheap last-minute deal or the best return flight from Chicago to Adelaide? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Adelaide

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Adelaide flights are currently cheapest in August.

Chicago to Adelaide: Alternative routes

Compare routes from Chicago to Adelaide below. You may find an airport to fly into that's cheaper, faster, or easier than Adelaide.

Chicago to Adelaide: Flight information

The things to know before you go.
Cheapest flight found$3,785
Cheapest month to flyAugust

Finding cheap flights from Chicago to Adelaide: Frequently asked questions

The best price we found for a return flight from Chicago to Adelaide is $3,785. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to Adelaide. But we found flights with one stop from $3,785.
As of March 2026, there are no flights flying from Chicago to Adelaide.
The cheapest month to fly from Chicago to Adelaide is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Adelaide Airport on Monday, 10 August 2026.
No airlines currently offer direct flights between Chicago and Adelaide Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Adelaide but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Adelaide is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Adelaide is Qatar Airways .

Flying from Chicago to Adelaide Airport (ADL): What you need to know

  • Adelaide is 16 hours 30 minutes ahead of Chicago. Adelaide Airport is located in Adelaide, which is in the UTC+10:30 timezone.

  • To ensure you get on your flight from Chicago to ADL, allow plenty of time to check in and find your gate. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

  • Hopping on a plane during a peak time like July? Popular periods (like Thanksgiving, Christmas and spring break) can add another hour at security. Be extra safe and arrive up to four hours before an international flight and two hours before a domestic departure.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • You might be able to make your cheap flight from Chicago to ADL even cheaper by adding a stopover. Just deselect 'Direct flights only' during your search to explore which cities could make a good pit stop. Dubai International Airport (DXB) is an option when leaving from Chicago O'Hare International Airport (ORD).

  • The journey from central Chicago to ORD takes about 45 minutes on public transport. If you ride-share, drive or take a taxi, you'll cover the 27 kilometres in 30 minutes or so, depending on traffic conditions.

  • Looking for a comfortable hotel close to Chicago O'Hare International Airport? If you've booked an early flight from Chicago to Adelaide Airport, these stays will have you sleeping just around the corner from the terminal:

  • Of all flights departing from Chicago O'Hare International Airport, 70% touch down on time at their destination.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Using public transport, you can travel from central Chicago to MDW in about 30 minutes. The terminal is roughly 16 kilometres away, and getting there by car will take approximately 25 minutes.

  • Start your holiday sooner with an extra night away from home. Before your Chicago to ADL flight, kick back in one of these hotels near Chicago Midway International Airport:

  • Chicago Midway International Airport has an on-time performance of 76%. This figure provides insight into how frequently flights departing from this airport make it to their destination on schedule.

  • You'll find MDW at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • RFD is around 145 kilometres from central Chicago. The drive from the city centre to the airport takes about 1 hour 40 minutes. If you're thinking about using public transport, expect a journey of around 2 hours.

  • Make catching an early Chicago to Adelaide Airport flight one of the easiest parts of your trip. Stay at one of these accommodation options near Chicago Rockford International Airport and get to your gate feeling relaxed and unhurried:

  • The on-time performance record of RFD is 71%. In other words, that's how often flights that depart this airport reach their final stop as planned.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

About Adelaide Airport (ADL)

Getting from Adelaide Airport (ADL) to central Adelaide

  • Adelaide Airport is around 6 kilometres from central Adelaide. It takes around 20 minutes or so to get to the city by car.

  • It'll take around 35 minutes if you're travelling by public transport.

How to find the cheapest flights from Chicago to Adelaide Airport (ADL)

  • The lowest price we've found for a one-way ticket from Chicago to Adelaide Airport is $1,841. For a return flight on this route, the best price is $3,785. Depending on when you want to go and the availability, these fares may change.

  • Booking ahead of time is often the key to finding a cheap flight from Chicago to ADL. Fares tend to rise as seats fill up, so the closer you get to departure, the more you'll likely pay.

  • If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll show you the lowest price across each month when searching for your Chicago to Adelaide Airport ticket.

  • Stay on top of deals for plane tickets from Chicago to ADL by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare pops up.

  • Lock in a cheap flight from Chicago to Adelaide Airport by using filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Chicago to Adelaide Airport (ADL)

  • December is the quietest month for flights from Chicago to Adelaide Airport (ADL), while November is the busiest. Figure out the best time to go to Adelaide based on whether you want a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Adelaide is January, with temperatures ranging between 15ºC and 30ºC. Book your Chicago to ADL plane ticket then if that's your idea of comfortable weather.

  • If you'd rather travel in cooler conditions, look for a cheap ticket from Chicago to Adelaide Airport in July when temperatures are between 7ºC and 14ºC.

More about Adelaide

  • Start your Adelaide trip off on the right foot by choosing the ideal place to stay. After booking your flight from Chicago to Adelaide Airport, explore our selection of hotels including:

  • St Peter's Cathedral and Adelaide Oval are just two of the popular attractions to put on your Adelaide to-do list. Keep the sightseeing going at Penfolds Winery.

Explore more of Australia

  • Adelaide has plenty going for it, but there are so many other corners of Australia waiting to be discovered. Around 241 kilometres west of Adelaide, a trip to Port Lincoln will keep your itinerary busy. Start with leading attractions like Lincoln National Park, Winter Hill Lookout and Port Lincoln Railway Museum.

  • Around 209 kilometres north of Adelaide, Port Pirie is another favourite stop in Australia. Experience major highlights starting with Port Pirie Military Museum, Port Pirie National Trust Museum and Port Pirie Regional Tourism and Arts Centre.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.