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$148+ 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 11/3. 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 — AKL
31 Mar — 7 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 1 March 2026.

Good round-trip deal

$916 or less

Good one-way deal

$87 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 1 March 2026.

Wed 15/414:25
ORD
-
SJU
1 stop7h 47m
Delta
Fri 24/414:45
SJU
-
ORD
1 stop10h 14m
Delta
Deal found 27/2$410
Wed 6/506:35
MLI
-
PHL
1 stop4h 39m
United Airlines
Sun 10/506:10
PHL
-
MLI
1 stop4h 54m
United Airlines
Deal found 26/2$433
Sat 25/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 29/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 27/2$445
Sat 11/415:20
MLI
-
PHL
1 stop5h 12m
United Airlines
Wed 15/410:00
PHL
-
MLI
1 stop5h 09m
United Airlines
Deal found 25/2$448
Tue 21/408:49
ORD
-
SJU
Nonstop4h 55m
United Airlines
Sat 25/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 26/2$463
Fri 13/319:22
MLI
-
PHL
1 stop3h 54m
United Airlines
Tue 17/317:10
PHL
-
MLI
1 stop6h 12m
United Airlines
Deal found 26/2$465
Fri 24/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 29/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 28/2$468
Sun 12/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 22/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 25/2$477
Tue 19/514:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 20/507:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 28/2$487
Wed 22/413:06
ORD
-
SJU
1 stop9h 44m
United Airlines
Sat 25/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 1/3$492
Wed 15/414:25
ORD
-
SJU
1 stop7h 47m
Delta
Tue 21/412:55
SJU
-
ORD
1 stop10h 26m
Delta
Deal found 27/2$493
Wed 18/320:56
ORD
-
SJU
Nonstop4h 33m
Spirit Airlines
Sun 22/301:29
SJU
-
ORD
Nonstop5h 16m
Spirit Airlines
Deal found 26/2$498

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 1 March 2026. In the last 7 days, Cheapflights users made a total of 134,765 searches

Fly to

Route

Departure

Return

Price

MolinePhiladelphia

MLI - PHL

MLIPHL

Moline Quad-City

Wed 6/5

06:35-12:14

1 stop4h 39m

Philadelphia

Sun 10/5

06:10-10:04

1 stop4h 54m

$433

MolinePhiladelphia

MLI - PHL

MLIPHL

Moline Quad-City

Sat 11/4

15:20-21:32

1 stop5h 12m

Philadelphia

Wed 15/4

10:00-14:09

1 stop5h 09m

$448

MolinePhiladelphia

MLI - PHL

MLIPHL

Moline Quad-City

Tue 28/4

08:00-14:16

1 stop5h 16m

Philadelphia

Sat 2/5

13:20-16:51

1 stop4h 31m

$535

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 5/5

08:49-14:44

Nonstop4h 55m

San Juan Luis Munoz Marin Intl

Sun 10/5

15:56-20:15

Nonstop5h 19m

$543

MolinePhiladelphia

MLI - PHL

MLIPHL

Moline Quad-City

Sat 28/3

06:30-14:24

1 stop6h 54m

Philadelphia

Mon 30/3

18:47-22:45

1 stop4h 58m

$565

MolinePhiladelphia

MLI - PHL

MLIPHL

Moline Quad-City

Fri 3/7

17:00-00:25

1 stop6h 25m

Philadelphia

Wed 8/7

05:30-10:26

1 stop5h 56m

$590

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 5/5

05:15-16:23

1 stop10h 08m

San Juan Luis Munoz Marin Intl

Mon 1/6

17:43-23:59

1 stop7h 16m

$632

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 28/4

11:55-23:40

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Sat 2/5

05:15-15:30

2 stops11h 15m

$668

MolineScranton

MLI - AVP

MLIAVP

Moline Quad-City

Sat 18/4

08:30-14:47

1 stop5h 17m

Wilkes-Barre Scranton

Tue 21/4

17:36-22:47

1 stop6h 11m

$682

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Thu 7/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Tue 12/5

07:40-11:53

Nonstop5h 13m

$690

Flights are sorted by cheapest return flights first.

Deals found on 28/2

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, November is the cheapest month in which you can book a flight from Illinois (average of $708). Flying from Illinois in September will prove the most costly (average of $2,398). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is Houston Hobby, with prices starting at $63. Explore other affordable destinations below.

Houston Hobby
Houston Hobby
From $63
Kastrup Copenhagen
Kastrup Copenhagen
From $635
Madrid Barajas
Madrid Barajas
From $901

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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 1 March 2026.

  • What is the cheapest month to fly from Illinois?

    At the present moment the cheapest month to fly from Illinois is currently November; with September being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • 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.

See more FAQs

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?

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.

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