Cheap flights from Illinois to Adelaide from $583
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Adelaide departing on 8/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Illinois to Adelaide
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Adelaide?
The cheapest day to depart on your flight to Adelaide is on a Tuesday when prices can be found for as low as $1,440. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Adelaide is Saturday, with ticket prices averaging around $2,298.
What is the cheapest time of day to depart on your flight to Adelaide?
According to our data, the cheapest time of day to fly to Adelaide is at noon. momondo users have found flights departing from Illinois to Adelaide at noon for as low as $1,201. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Adelaide are more costly in the morning, with an average ticket price of $2,194. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
Cheap Illinois to Adelaide flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Adelaide
When did momondo last update prices for flights from Illinois to Adelaide Airport?
Prices for flights from Illinois to Adelaide Airport refresh daily.
How many operators does momondo search for flights from Illinois to Adelaide Airport?
As of June 2025, there is 1 operator available to choose from for flights from Illinois to Adelaide Airport.
How old do you have to be to fly from Illinois to Adelaide Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Adelaide Airport.
What documentation or ID do you need to fly to Adelaide Airport?
The required travel and health documents for your Adelaide Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Adelaide Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Illinois to Adelaide
Compare and see reviews for airlines that fly from Illinois to Adelaide with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $987 | Free Cancellation | Rating 7.5 863 reviews |
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Why should I use momondo to find a flight deal from Illinois to Adelaide?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Adelaide. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Illinois to Adelaide with flexible booking policies on momondo?
momondo does allow users to show only those flights to Adelaide from Illinois which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Illinois to Adelaide?
Once all potential Illinois to Adelaide flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Illinois to Adelaide right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Adelaide from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.