S$ 101+ Cheap flights from Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2-6. 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 — SIN
12 Apr — 19 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 13 March 2026.

Good round-trip deal

S$ 132 or less

Good one-way deal

S$ 55 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 13 March 2026.

Wed 8-410:40
ORD
-
GRR
Nonstop1h 03m
United Airlines
Wed 15-417:03
GRR
-
ORD
Nonstop1h 02m
United Airlines
Deal found 11-3S$ 200
Tue 5-517:07
ORD
-
GRR
Nonstop1h 06m
United Airlines
Sat 9-506:00
GRR
-
ORD
Nonstop1h 13m
United Airlines
Deal found 12-3S$ 209
Mon 6-417:40
ORD
-
GRR
1 stop5h 02m
Delta
Mon 13-415:50
GRR
-
ORD
1 stop4h 02m
Delta
Deal found 9-3S$ 244
Tue 5-517:04
ORD
-
GRR
1 stop5h 53m
Delta
Sat 9-505:30
GRR
-
ORD
1 stop5h 57m
Delta
Deal found 12-3S$ 260
Thu 9-418:10
ORD
-
PWM
Nonstop2h 30m
United Airlines
Sat 11-418:33
PWM
-
ORD
Nonstop3h 10m
United Airlines
Deal found 8-3S$ 267
Thu 2-419:14
ORD
-
GRR
1 stop3h 28m
Delta
Thu 30-418:10
GRR
-
ORD
1 stop3h 30m
Delta
Deal found 10-3S$ 269
Thu 28-506:30
ORD
-
GRR
Nonstop1h 08m
United Airlines
Sat 30-518:25
GRR
-
ORD
Nonstop1h 23m
United Airlines
Deal found 12-3S$ 277
Sat 28-311:48
ORD
-
PWM
Nonstop2h 26m
United Airlines
Fri 3-418:33
PWM
-
ORD
Nonstop3h 10m
United Airlines
Deal found 8-3S$ 287
Tue 31-307:00
ORD
-
PWM
1 stop5h 50m
Delta
Sat 4-416:48
PWM
-
ORD
1 stop4h 34m
Delta
Deal found 8-3S$ 292
Thu 30-413:55
ORD
-
GRR
Nonstop1h 06m
United Airlines
Mon 4-515:38
GRR
-
ORD
Nonstop1h 14m
United Airlines
Deal found 8-3S$ 295
Wed 1-413:57
ORD
-
PWM
2 stops8h 15m
Delta
Sat 4-416:48
PWM
-
ORD
1 stop4h 34m
Delta
Deal found 8-3S$ 299
Thu 4-615:53
ORD
-
PWM
1 stop6h 58m
United Airlines
Sun 7-606:00
PWM
-
ORD
Nonstop3h 00m
United Airlines
Deal found 9-3S$ 305

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 13 March 2026. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Mon 6-4

17:40-23:42

1 stop5h 02m

Grand Rapids Gerald R. Ford Intl

Mon 13-4

15:50-18:52

1 stop4h 02m

S$ 244

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Thu 28-5

06:30-08:38

Nonstop1h 08m

Grand Rapids Gerald R. Ford Intl

Sat 30-5

18:25-18:48

Nonstop1h 23m

S$ 277

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Thu 30-4

13:55-16:01

Nonstop1h 06m

Grand Rapids Gerald R. Ford Intl

Mon 4-5

15:38-15:52

Nonstop1h 14m

S$ 295

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Mon 25-5

07:00-12:00

1 stop4h 00m

Portland

Fri 29-5

12:55-18:05

1 stop6h 10m

S$ 318

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 23-5

18:18-21:51

Nonstop2h 33m

Portland

Sun 24-5

15:46-21:54

1 stop7h 08m

S$ 331

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Thu 2-4

19:14-23:42

1 stop3h 28m

Grand Rapids Gerald R. Ford Intl

Mon 6-4

15:30-20:23

1 stop5h 53m

S$ 340

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 20-6

15:53-23:51

1 stop6h 58m

Portland

Tue 23-6

05:15-09:36

1 stop5h 21m

S$ 341

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Wed 8-4

09:50-14:54

1 stop4h 04m

Grand Rapids Gerald R. Ford Intl

Wed 15-4

08:30-12:45

1 stop5h 15m

S$ 342

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Fri 5-6

15:53-23:51

1 stop6h 58m

Portland

Mon 8-6

19:16-23:26

1 stop5h 10m

S$ 343

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 28-3

17:47-21:04

Nonstop2h 17m

Portland

Sat 4-4

16:28-18:38

Nonstop3h 10m

S$ 343

Flights are sorted by cheapest return flights first.

Deals found on 8-3

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 S$ 845). Flying from Illinois in December will prove the most costly (average of S$ 1,678). 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: JetBlue, United Airlines, Turkish Airlines, Etihad Airways. As they depart for the following popular destinations: Singapore.

JetBlue
JetBlue
From S$ 2,811
United Airlines
United Airlines
From S$ 1,818
Turkish Airlines
Turkish Airlines
From S$ 1,085
Etihad Airways
Etihad Airways
From S$ 1,368

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is Las Vegas Harry Reid Intl, with prices starting at S$ 53. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From S$ 53
Pittsburgh
Pittsburgh
From S$ 59
New York
New York
From S$ 69
Boston Logan Intl
Boston Logan Intl
From S$ 126

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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 13 March 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 December. 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 Singapore from S$ 878 round trip

  • How does Cheapflights help users find flights from Illinois?

    When you search for this flight from Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Illinois.

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

    Yes! Cheapflights helps users easily find flights from Illinois with no change fees.

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

    Yes! Start tracking prices for flights from Illinois today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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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?

When you search for this flight from Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Illinois.

Can Cheapflights find flights from Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois with no change fees.

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

Yes! Start tracking prices for flights from Illinois today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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