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S$ 143+ 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 8-4. 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
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Good round-trip deal

S$ 266 or less

Good one-way deal

S$ 82 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

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 21 February 2025.

Fri 25-418:35ORD - GRR
Nonstop1h 06mUnited Airlines
Mon 28-407:15GRR - ORD
Nonstop1h 07mUnited Airlines
Deal found 20-2S$ 198
Mon 18-806:00ORD - PWM
1 stop6h 23mJetBlue
Tue 26-806:10PWM - ORD
1 stop5h 37mJetBlue
Deal found 20-2S$ 218
Sat 15-317:00ORD - GRR
1 stop4h 02mDelta
Sat 22-310:26GRR - ORD
1 stop3h 15mDelta
Deal found 20-2S$ 237
Wed 19-306:00ORD - PWM
1 stop4h 27mDelta
Wed 26-316:30PWM - ORD
1 stop5h 08mDelta
Deal found 20-2S$ 290
Wed 5-311:10ORD - PWM
Nonstop2h 22mUnited Airlines
Fri 25-406:00PWM - ORD
Nonstop2h 52mUnited Airlines
Deal found 19-2S$ 294
Thu 5-620:20ORD - ONT
Nonstop4h 31mUnited Airlines
Mon 9-607:00ONT - ORD
Nonstop4h 03mUnited Airlines
Deal found 20-2S$ 305
Tue 13-513:50ORD - PWM
1 stop7h 40mSouthwest
Tue 20-506:15PWM - ORD
2 stops7h 30mSouthwest
Deal found 20-2S$ 326
Wed 26-307:30ORD - ONT
1 stop11h 12mDelta
Tue 1-417:30ONT - ORD
2 stops13h 48mDelta
Deal found 20-2S$ 332
Wed 23-406:00ORD - ONT
1 stop11h 32mAlaska Airlines
Tue 29-406:00ONT - ORD
1 stop22h 05mAlaska Airlines
Deal found 21-2S$ 358
Sun 6-422:05ORD - GRR
Nonstop0h 57mAmerican Airlines
Sun 13-415:48GRR - ORD
Nonstop1h 07mAmerican Airlines
Deal found 20-2S$ 369
Mon 7-406:15ORD - ONT
2 stops8h 30mSouthwest
Fri 11-415:15ONT - ORD
1 stop5h 50mSouthwest
Deal found 20-2S$ 404
Wed 12-314:00ORD - ONT
1 stop9h 27mHawaiian Airlines
Tue 18-306:00ONT - ORD
1 stop10h 00mHawaiian Airlines
Deal found 20-2S$ 417

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 21 February 2025. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Singapore

Route

Depart

Return

Price

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 5-3

11:53-18:31

1 stop5h 38m

Portland

Fri 25-4

06:00-07:52

Nonstop2h 52m

S$ 308

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Fri 2-5

06:20-14:25

1 stop7h 05m

Portland

Mon 2-6

15:20-22:20

1 stop8h 00m

S$ 310

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 8-3

07:05-14:22

1 stop6h 17m

Portland

Wed 12-3

06:15-10:37

1 stop5h 22m

S$ 312

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Fri 28-3

18:15-22:52

1 stop3h 37m

Grand Rapids Gerald R. Ford Intl

Sun 30-3

17:30-20:44

1 stop4h 14m

S$ 316

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 21-5

07:10-12:38

1 stop7h 28m

Ontario

Mon 26-5

07:00-13:03

Nonstop4h 03m

S$ 318

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Tue 13-5

13:50-22:30

1 stop7h 40m

Portland

Tue 20-5

06:15-12:45

2 stops7h 30m

S$ 326

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 26-3

07:30-16:42

1 stop11h 12m

Ontario

Tue 1-4

17:30-09:18

2 stops13h 48m

S$ 332

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 23-4

06:00-15:32

1 stop11h 32m

Ontario

Tue 29-4

06:00-06:05

1 stop22h 05m

S$ 358

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Sun 6-4

22:05-00:02

Nonstop0h 57m

Grand Rapids Gerald R. Ford Intl

Sun 13-4

15:48-15:55

Nonstop1h 07m

S$ 369

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Sun 16-3

08:58-11:09

Nonstop1h 11m

Grand Rapids Gerald R. Ford Intl

Sat 22-3

07:25-07:37

Nonstop1h 12m

S$ 381

Flights are sorted by cheapest return flights first.

Deals found on 21-2

Showing 1-10 of 60 results
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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, February is the cheapest month in which you can book a flight from Illinois (average of S$ 995). Flying from Illinois in June will prove the most costly (average of S$ 1,630). 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: United Airlines. As it departs for the following popular destinations: Singapore.

United Airlines

United Airlines

From S$ 836

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is Orlando, with prices starting at S$ 82. Explore other affordable destinations below.

Orlando

Orlando

From S$ 61

San Francisco

San Francisco

From S$ 107

Buffalo

Buffalo

From S$ 199

Rome

Rome

From S$ 719

Airline reviews for flights from Illinois

Get insights into the airlines that provide service from Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Illinois. In the last 7 days, Cheapflights users made a total of 200,618 searches.
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very Good
1,200 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Korean Air
8.4
Very Good
1,037 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

ANA
8.4
Very Good
836 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Japan Airlines
8.3
Very Good
1,440 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Delta
8.0
Very Good
8,217 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.0

Overall

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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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 21 February 2025.

  • What is the cheapest month to fly from Illinois?

    Currently, the cheapest month for flights from Illinois is February. The most expensive month for flights is June. 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$ 947 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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