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S$ 126+ 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 6-5. 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
20 Apr — 27 Apr1
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 15 April 2025.

Good round-trip deal

S$ 262 or less

Good one-way deal

S$ 156 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 15 April 2025.

Mon 5-521:20ORD - GRR
Nonstop1h 08mUnited Airlines
Tue 6-507:15GRR - ORD
Nonstop1h 07mUnited Airlines
Deal found 14-4S$ 128
Tue 6-510:30ORD - GRR
1 stop3h 24mDelta
Wed 7-515:34GRR - ORD
1 stop4h 03mDelta
Deal found 14-4S$ 233
Sat 14-619:55ORD - ONT
Nonstop4h 31mUnited Airlines
Sat 21-607:00ONT - ORD
Nonstop3h 58mUnited Airlines
Deal found 15-4S$ 299
Tue 3-609:00ORD - PWM
1 stop7h 43mUnited Airlines
Wed 11-606:00PWM - ORD
Nonstop2h 53mUnited Airlines
Deal found 14-4S$ 312
Wed 2-717:59ORD - PWM
1 stop5h 27mDelta
Thu 3-718:56PWM - ORD
1 stop6h 03mDelta
Deal found 14-4S$ 314
Tue 27-505:00ORD - GRR
1 stop5h 08mAmerican Airlines
Tue 27-519:33GRR - ORD
Nonstop1h 17mAmerican Airlines
Deal found 14-4S$ 314
Tue 19-820:42ORD - ONT
1 stop16h 03mAlaska Airlines
Sun 24-807:10ONT - ORD
1 stop19h 54mAlaska Airlines
Deal found 14-4S$ 324
Tue 15-718:55ORD - ONT
1 stop6h 15mSouthwest
Thu 17-715:20ONT - ORD
1 stop6h 20mSouthwest
Deal found 15-4S$ 325
Fri 2-506:20ORD - PWM
1 stop7h 05mJetBlue
Mon 5-515:20PWM - ORD
1 stop8h 02mJetBlue
Deal found 14-4S$ 329
Thu 5-619:15ORD - ONT
1 stop6h 27mDelta
Mon 25-822:59ONT - ORD
1 stop7h 33mDelta
Deal found 14-4S$ 338
Sat 17-513:30ORD - PWM
1 stop8h 55mSouthwest
Tue 20-506:15PWM - ORD
2 stops7h 30mSouthwest
Deal found 15-4S$ 342
Sun 6-706:45ORD - PWM
1 stop27h 38mSun Country Air
Fri 11-711:22PWM - ORD
1 stop6h 53mSun Country Air
Deal found 15-4S$ 441

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

Fly to

Singapore

Route

Depart

Return

Price

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Mon 19-5

21:20-23:28

Nonstop1h 08m

Grand Rapids Gerald R. Ford Intl

Thu 22-5

07:30-07:38

Nonstop1h 08m

S$ 280

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 14-6

19:55-22:26

Nonstop4h 31m

Ontario

Sat 21-6

07:00-12:58

Nonstop3h 58m

S$ 299

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Tue 3-6

09:00-17:43

1 stop7h 43m

Portland

Wed 11-6

06:00-07:53

Nonstop2h 53m

S$ 312

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 2-7

15:40-00:26

1 stop7h 46m

Portland

Wed 9-7

11:59-19:43

1 stop8h 44m

S$ 314

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Tue 27-5

05:00-11:08

1 stop5h 08m

Grand Rapids Gerald R. Ford Intl

Tue 27-5

19:33-19:50

Nonstop1h 17m

S$ 314

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Mon 5-5

17:05-23:40

1 stop5h 35m

Grand Rapids Gerald R. Ford Intl

Tue 6-5

15:34-20:45

1 stop6h 11m

S$ 322

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 19-8

20:42-10:45

1 stop16h 03m

Ontario

Sun 24-8

07:10-05:04

1 stop19h 54m

S$ 324

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 15-7

18:55-23:10

1 stop6h 15m

Ontario

Thu 17-7

15:20-23:40

1 stop6h 20m

S$ 325

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Fri 2-5

06:20-14:25

1 stop7h 05m

Portland

Mon 5-5

15:20-22:22

1 stop8h 02m

S$ 329

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 5-6

14:25-22:35

1 stop10h 10m

Ontario

Sun 8-6

13:15-22:09

1 stop6h 54m

S$ 338

Flights are sorted by cheapest return flights first.

Deals found on 13-4

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$ 958). Flying from Illinois in June will prove the most costly (average of S$ 1,577). 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 San Francisco, with prices starting at S$ 141. Explore other affordable destinations below.

San Francisco

San Francisco

From S$ 107

Buffalo

Buffalo

From S$ 199

Phoenix Sky Harbor Intl

Phoenix Sky Harbor Intl

From S$ 256

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
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very Good
1,176 reviews
EVA Air
8.4
Very Good
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very Good
1,063 reviews
EVA Air
8.4
Very Good
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very Good
1,440 reviews
EVA Air
8.4
Very Good
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very Good
841 reviews
EVA Air
8.4
Very Good
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very Good
729 reviews
EVA Air
8.4
Very Good
1,176 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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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 15 April 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$ 1,096 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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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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