Cheap flights from Adelaide to Illinois from $1,786
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Adelaide to Illinois departing on 13/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Adelaide to Illinois
Cheap return flights
Air Canada flights from Adelaide to Illinois
Our best Air Canada deals on Adelaide to Illinois flight tickets
Qatar Airways flights from Adelaide to Illinois
Our best Qatar Airways deals on Adelaide to Illinois flight tickets
See travel insights to Illinois from
How to get the cheapest flight ticket from Adelaide to Illinois
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 month to fly to Illinois?
In general, April is the cheapest month to fly from Adelaide to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,519. If you’re not able to fly to Illinois in April, then February is your next best option. Flight prices from Adelaide to Illinois during February average around $1,581.
What is the cheapest day to depart on your flight to Illinois?
On average, the least expensive day to fly to Illinois from Adelaide is on a Monday. momondo users have found tickets for Monday departures for as low as $2,094. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $2,291. These prices are subject to change though, so be sure to set up a Price Alert for flights to Illinois.
Cheap Adelaide to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Adelaide to Illinois
When did momondo last update prices for flights from Adelaide Airport to Illinois?
Prices for flights from Adelaide Airport to Illinois were last updated today.
How many operators does momondo search for flights from Adelaide Airport to Illinois?
As of July 2025, there is 1 operator available to choose from for flights from Adelaide Airport to Illinois.
How old do you have to be to fly from Adelaide Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Adelaide Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Adelaide to Illinois
Compare and see reviews for airlines that fly from Adelaide to Illinois with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,195 | Free cancellation | Rating 7.5 867 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Adelaide to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Adelaide to Illinois for you.
Can I find flights from Adelaide to Illinois with flexible booking policies on momondo?
momondo does allow users to show only those flights to Illinois from Adelaide which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Adelaide to Illinois?
Once you have performed a search for Adelaide to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Adelaide to Illinois right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Adelaide to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.