$135+ Cheap flights from Illinois

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — MEL
30 Mar — 6 Apr1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Illinois

Discover essential information about flights departing from Illinois, including flight schedules, destinations, airlines operating at the Illinois airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 28 February 2026.

Good round-trip deal

$245 or less

Good one-way deal

$96 or less
Price to beat on a round-trip flight from Illinois.
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Price to beat on a one-way flight from Illinois.
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Find flights from Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Illinois
Explore the most affordable flight options available from Illinois. Find the lowest fares based on data from user searches, with prices last updated on 28 February 2026.

Sun 12/415:40
ORD
-
BNE
1 stop24h 25m
Multiple Airlines
Mon 27/410:00
BNE
-
ORD
2 stops34h 27m
Multiple Airlines
Deal found 26/2$1,238
Mon 23/315:35
ORD
-
BNE
1 stop25h 10m
Air Canada
Tue 21/410:00
BNE
-
ORD
1 stop19h 45m
Air Canada
Deal found 27/2$1,239
Tue 21/412:50
ORD
-
BNE
2 stops27h 15m
Air Canada
Wed 29/410:00
BNE
-
ORD
1 stop19h 45m
Air Canada
Deal found 26/2$1,244
Mon 20/415:40
ORD
-
BNE
1 stop24h 25m
Multiple Airlines
Mon 4/510:00
BNE
-
ORD
2 stops34h 25m
Multiple Airlines
Deal found 25/2$1,251
Wed 22/415:40
ORD
-
BNE
1 stop24h 25m
Air Canada
Wed 29/410:00
BNE
-
ORD
1 stop19h 45m
Air Canada
Deal found 25/2$1,252
Tue 26/513:00
STL
-
BNE
2 stops27h 05m
Air Canada
Fri 5/610:00
BNE
-
STL
2 stops25h 05m
Air Canada
Deal found 27/2$1,254
Mon 13/408:42
ORD
-
BNE
2 stops31h 23m
Air Canada
Mon 20/410:00
BNE
-
ORD
1 stop25h 15m
Air Canada
Deal found 27/2$1,255
Fri 22/513:00
STL
-
BNE
2 stops27h 05m
Air Canada
Fri 5/610:00
BNE
-
STL
2 stops25h 05m
Air Canada
Deal found 26/2$1,258
Wed 8/408:40
ORD
-
BNE
2 stops31h 25m
Air Canada
Tue 21/410:00
BNE
-
ORD
1 stop19h 45m
Air Canada
Deal found 24/2$1,258
Tue 19/511:05
ORD
-
BNE
2 stops29h 00m
Singapore Airlines
Sun 31/510:00
BNE
-
ORD
1 stop19h 45m
Singapore Airlines
Deal found 27/2$1,259
Tue 26/513:00
STL
-
BNE
2 stops51h 05m
Air Canada
Tue 9/610:00
BNE
-
STL
2 stops25h 05m
Air Canada
Deal found 24/2$1,262
Sun 24/513:00
STL
-
BNE
2 stops27h 05m
Air Canada
Tue 2/610:00
BNE
-
STL
2 stops49h 05m
Air Canada
Deal found 27/2$1,263

Find flights from Illinois within your budget

 
Find flights departing from Illinois that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 28 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 22/5

19:23-06:30

1 stop20h 07m

Brisbane

Fri 5/6

10:30-18:17

1 stop22h 47m

$1,495

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 27/5

19:23-06:30

1 stop20h 07m

Brisbane

Tue 9/6

10:30-18:17

1 stop22h 47m

$1,495

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 22/5

19:23-06:30

1 stop20h 07m

Brisbane

Wed 10/6

10:30-18:17

1 stop22h 47m

$1,495

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 22/5

19:23-06:30

1 stop20h 07m

Brisbane

Wed 3/6

10:30-18:17

1 stop22h 47m

$1,497

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Mon 25/5

13:13-06:30

2 stops26h 17m

Brisbane

Wed 3/6

10:30-21:16

2 stops25h 46m

$1,502

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Fri 22/5

16:48-06:30

2 stops22h 42m

Brisbane

Sun 7/6

10:30-23:57

2 stops28h 27m

$1,502

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 27/5

19:23-06:30

1 stop20h 07m

Brisbane

Wed 10/6

10:30-18:17

1 stop22h 47m

$1,513

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 21/5

18:55-06:30

2 stops44h 35m

Brisbane

Tue 9/6

10:30-18:17

1 stop22h 47m

$1,525

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 26/5

17:41-06:30

2 stops45h 49m

Brisbane

Wed 3/6

10:30-18:17

1 stop22h 47m

$1,525

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 25/6

06:00-06:30

2 stops57h 30m

Brisbane

Sun 5/7

10:30-18:17

1 stop22h 47m

$1,542

Flights are sorted by cheapest return flights first.

Deals found on 26/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois

Have a flexible travel schedule? Discover the best time to fly from Illinois 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.

Travel insights for flights from Illinois

Get recent, data-driven insights about flights from Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois?

Currently, September is the cheapest month in which you can book a flight from Illinois (average of $507). Flying from Illinois in January will prove the most costly (average of $1,349). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Illinois?

When flying from Illinois check dates and pricing for the following: Qantas Airways. As it departs for the following popular destinations: Melbourne.

Qantas Airways
Qantas Airways
From $655
Spirit Airlines
Spirit Airlines
From $81
United Airlines
United Airlines
From $302

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is Toronto, with prices starting at $96. Explore other affordable destinations below.

Toronto
Toronto
From $96
New York
New York
From $114
Memphis
Memphis
From $164
Boston Logan Intl
Boston Logan Intl
From $181

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Direct flights from USA

Book a direct flight from one of these other cities located in USA.
Direct flights from Moline

Related info for your journey

Access useful and relevant information related to your journey from Illinois. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 28 February 2026.

  • What is the cheapest month to fly from Illinois?

    Currently, the cheapest month for flights from Illinois is September. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Illinois?

    View the cheapest flight destinations from Illinois:
    Fly from Chicago to Sydney from $1,133 round trip
    Fly from Chicago to Melbourne from $1,224 round trip

  • How does Cheapflights help users find flights from Illinois?

    Deals for flights from Illinois are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from Illinois?

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Illinois with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois flexibly with Cheapflights today.

  • Can Cheapflights notify me if prices for flights from Illinois become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois?

Deals for flights from Illinois are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Illinois?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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