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S$ 147+ 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 4-7. 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
13 Jun — 20 Jun1
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 8 June 2025.

Good round-trip deal

S$ 256 or less

Good one-way deal

S$ 153 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 8 June 2025.

Sat 30-819:59ORD - ONT
Nonstop4h 31mUnited Airlines
Sun 14-907:00ONT - ORD
Nonstop4h 03mUnited Airlines
Deal found 5-6S$ 259
Thu 14-815:09ORD - ONT
1 stop11h 04mAlaska Airlines
Tue 26-819:22ONT - ORD
1 stop9h 41mAlaska Airlines
Deal found 6-6S$ 287
Wed 20-806:00ORD - PWM
1 stop6h 23mJetBlue
Mon 25-806:10PWM - ORD
1 stop5h 37mJetBlue
Deal found 7-6S$ 300
Wed 17-907:00ORD - PWM
1 stop6h 21mDelta
Wed 24-917:59PWM - ORD
1 stop5h 38mDelta
Deal found 6-6S$ 301
Sat 4-1018:10ORD - PWM
Nonstop2h 34mUnited Airlines
Fri 17-1006:14PWM - ORD
Nonstop2h 51mUnited Airlines
Deal found 6-6S$ 303
Thu 11-913:50ORD - PWM
1 stop5h 10mSouthwest
Sun 14-907:10PWM - ORD
1 stop6h 35mSouthwest
Deal found 6-6S$ 312
Tue 22-722:05ORD - GRR
Nonstop0h 54mAmerican Airlines
Tue 29-712:28GRR - ORD
Nonstop1h 13mAmerican Airlines
Deal found 7-6S$ 322
Sat 5-707:05ORD - GRR
1 stop2h 51mDelta
Sat 12-705:30GRR - ORD
1 stop5h 45mDelta
Deal found 7-6S$ 325
Tue 28-1018:59ORD - ONT
1 stop6h 47mDelta
Sat 1-1113:00ONT - ORD
1 stop5h 58mDelta
Deal found 6-6S$ 331
Thu 10-718:20ORD - GRR
Nonstop1h 15mUnited Airlines
Mon 14-718:37GRR - ORD
Nonstop1h 18mUnited Airlines
Deal found 6-6S$ 354
Mon 21-705:05ORD - GRR
1 stop7h 18mMultiple Airlines
Mon 28-715:40GRR - ORD
1 stop6h 50mMultiple Airlines
Deal found 6-6S$ 357
Wed 9-712:30ORD - PWM
1 stop22h 05mSun Country Air
Mon 14-712:46PWM - ORD
1 stop5h 35mSun Country Air
Deal found 7-6S$ 367

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

Fly to

Singapore

Route

Depart

Return

Price

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 14-8

15:09-00:13

1 stop11h 04m

Ontario

Tue 26-8

19:22-07:03

1 stop9h 41m

S$ 287

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 20-8

06:00-13:23

1 stop6h 23m

Portland

Mon 25-8

06:10-10:47

1 stop5h 37m

S$ 300

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 17-9

07:00-14:21

1 stop6h 21m

Portland

Wed 24-9

17:59-22:37

1 stop5h 38m

S$ 301

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Sat 4-10

18:10-21:44

Nonstop2h 34m

Portland

Fri 17-10

06:14-08:05

Nonstop2h 51m

S$ 303

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Thu 11-9

13:50-20:00

1 stop5h 10m

Portland

Sun 14-9

07:10-12:45

1 stop6h 35m

S$ 312

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Tue 22-7

22:05-23:59

Nonstop0h 54m

Grand Rapids Gerald R. Ford Intl

Tue 29-7

12:28-12:41

Nonstop1h 13m

S$ 322

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Sat 5-7

07:05-10:56

1 stop2h 51m

Grand Rapids Gerald R. Ford Intl

Sat 12-7

05:30-10:15

1 stop5h 45m

S$ 325

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 28-10

18:59-23:46

1 stop6h 47m

Ontario

Sat 1-11

13:00-20:58

1 stop5h 58m

S$ 331

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 26-8

19:59-22:30

Nonstop4h 31m

Ontario

Tue 2-9

07:00-13:03

Nonstop4h 03m

S$ 349

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Thu 10-7

18:20-20:35

Nonstop1h 15m

Grand Rapids Gerald R. Ford Intl

Mon 14-7

18:37-18:55

Nonstop1h 18m

S$ 354

Flights are sorted by cheapest return flights first.

Deals found on 8-6

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, March is the cheapest month in which you can book a flight from Illinois (average of S$ 939). Flying from Illinois in June will prove the most costly (average of S$ 1,543). 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, Turkish Airlines. As they depart for the following popular destinations: Singapore.

United Airlines
United Airlines
From S$ 836
Turkish Airlines
Turkish Airlines
From S$ 816

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is San Francisco, with prices starting at S$ 138. Explore other affordable destinations below.

San Francisco
San Francisco
From S$ 107
Buffalo
Buffalo
From S$ 199
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From S$ 376

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

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very Good
1,200 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very Good
1,085 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very Good
1,488 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very Good
736 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very Good
877 reviews
EVA Air
8.4
Very Good
1,200 reviews
Check prices

Comfort

8.3

Boarding

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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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 8 June 2025.

  • What is the cheapest month to fly from Illinois?

    Currently, the cheapest month for flights from Illinois is March. 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$ 895 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

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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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