$191+ 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 18/9. 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.
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 27 August 2025.
Good round-trip deal | $515 or less |
|---|---|
Good one-way deal | $285 or less |
Find flights from Illinois
Cheapest flights from IllinoisExplore the most affordable flight options available from Illinois. Find the lowest fares based on data from user searches, with prices last updated on 27 August 2025.
Explore the most affordable flight options available from Illinois. Find the lowest fares based on data from user searches, with prices last updated on 27 August 2025.
Find flights from Illinois within your budget
Fly to
Route
Departure
Return
Price
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Fri 26/9
18:45-00:45
1 stop5h 00m
Philadelphia
Mon 29/9
17:06-21:05
1 stop4h 59m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Thu 18/9
06:30-14:17
1 stop6h 47m
Philadelphia
Sun 21/9
06:30-10:10
1 stop4h 40m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Tue 9/9
06:00-13:30
1 stop6h 30m
Philadelphia
Sat 13/9
18:39-22:42
1 stop5h 03m
PeoriaAllentown
PIA - ABE
PIAABE
Greater Peoria
Tue 9/9
06:55-11:58
1 stop4h 03m
Allentown-Bethlehem
Sat 13/9
17:28-20:52
1 stop4h 24m
MolineWhite Plains
MLI - HPN
MLIHPN
Moline Quad-City
Thu 25/9
05:57-12:00
1 stop5h 03m
White Plains Westchester County
Sat 27/9
18:40-22:42
1 stop5h 02m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Tue 23/9
16:59-00:54
1 stop6h 55m
Philadelphia
Thu 25/9
18:25-22:42
1 stop5h 17m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Mon 3/11
15:55-23:03
1 stop6h 08m
Philadelphia
Wed 5/11
06:00-10:15
1 stop5h 15m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Mon 29/9
16:59-00:54
1 stop6h 55m
Philadelphia
Tue 30/9
18:25-22:42
1 stop5h 17m
MolinePhiladelphia
MLI - PHL
MLIPHL
Moline Quad-City
Sun 2/11
17:20-00:15
1 stop5h 55m
Philadelphia
Wed 5/11
06:00-10:15
1 stop5h 15m
PeoriaAllentown
PIA - ABE
PIAABE
Greater Peoria
Wed 18/2
14:25-21:47
1 stop6h 22m
Allentown-Bethlehem
Sat 21/2
17:32-21:31
1 stop4h 59m
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.
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, January is the cheapest month in which you can book a flight from Illinois (average of $731). Flying from Illinois in September will prove the most costly (average of $2,061). 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?
For round-trip flights from Illinois you’ll fly on: Air Canada. This airline flies to the following popular destinations: Auckland.
What is the cheapest place to fly to from Illinois?
The cheapest city to fly to from Illinois is Mexico City Benito Juarez, with prices starting at $225. Explore other affordable destinations below.
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Direct flights from USA
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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 27 August 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Illinois?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Illinois?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Illinois.
Can Cheapflights find flights from Illinois with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Illinois become cheaper?
Not ready to book yet? You can track prices for flights from Illinois on Cheapflights with our Price Alerts feature and get notified when better prices are available.