Find flights
Airlines

S$ 130+ 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 22-4. 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
30 Mar — 6 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 25 March 2025.

Good round-trip deal

S$ 266 or less

Good one-way deal

S$ 159 or less
Price to beat on a round-trip flight from Illinois.
Search Deals
Price to beat on a one-way flight from Illinois.
Search Deals

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 25 March 2025.

Tue 22-418:35ORD - GRR
Nonstop1h 06mUnited Airlines
Tue 29-409:20GRR - ORD
Nonstop1h 05mUnited Airlines
Deal found 25-3S$ 130
Tue 6-509:30ORD - GRR
1 stop3h 04mDelta
Wed 7-515:34GRR - ORD
1 stop5h 47mDelta
Deal found 25-3S$ 237
Tue 3-613:30ORD - PWM
2 stops9h 44mDelta
Tue 10-617:35PWM - ORD
1 stop5h 44mDelta
Deal found 25-3S$ 297
Sat 24-519:55ORD - ONT
Nonstop4h 31mUnited Airlines
Sun 1-607:00ONT - ORD
Nonstop4h 03mUnited Airlines
Deal found 24-3S$ 304
Tue 8-418:12ORD - PWM
Nonstop2h 23mUnited Airlines
Wed 9-416:15PWM - ORD
Nonstop3h 00mUnited Airlines
Deal found 24-3S$ 306
Wed 11-616:03ORD - PWM
1 stop4h 54mJetBlue
Mon 16-606:10PWM - ORD
1 stop5h 37mJetBlue
Deal found 24-3S$ 310
Wed 23-409:00ORD - ONT
1 stop8h 32mAlaska Airlines
Tue 29-406:00ONT - ORD
1 stop9h 00mAlaska Airlines
Deal found 24-3S$ 329
Thu 29-514:55ORD - ONT
1 stop7h 05mSouthwest
Mon 2-605:35ONT - ORD
1 stop6h 30mSouthwest
Deal found 25-3S$ 330
Wed 23-407:25ORD - ONT
1 stop6h 51mDelta
Fri 25-417:15ONT - ORD
1 stop5h 38mDelta
Deal found 24-3S$ 344
Wed 4-607:30ORD - PWM
2 stops14h 00mSouthwest
Wed 11-605:30PWM - ORD
1 stop7h 20mSouthwest
Deal found 25-3S$ 348
Fri 9-514:54ORD - GRR
Nonstop0h 55mAmerican Airlines
Fri 16-520:00GRR - ORD
1 stop5h 11mAmerican Airlines
Deal found 25-3S$ 381
Fri 9-508:40ORD - ONT
1 stop11h 07mFrontier
Thu 15-500:59ONT - ORD
1 stop20h 42mFrontier
Deal found 25-3S$ 395

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 25 March 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

Fri 9-5

21:20-23:28

Nonstop1h 08m

Grand Rapids Gerald R. Ford Intl

Fri 16-5

09:15-09:22

Nonstop1h 07m

S$ 290

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Tue 3-6

13:30-00:14

2 stops9h 44m

Portland

Tue 10-6

17:35-22:19

1 stop5h 44m

S$ 297

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 24-5

19:55-22:26

Nonstop4h 31m

Ontario

Sun 1-6

07:00-13:03

Nonstop4h 03m

S$ 304

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Tue 8-4

18:12-21:35

Nonstop2h 23m

Portland

Wed 9-4

16:15-18:15

Nonstop3h 00m

S$ 306

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 11-6

16:03-21:57

1 stop4h 54m

Portland

Mon 16-6

06:10-10:47

1 stop5h 37m

S$ 310

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 23-4

09:00-15:32

1 stop8h 32m

Ontario

Tue 29-4

06:00-18:01

1 stop10h 01m

S$ 329

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 29-5

14:55-20:00

1 stop7h 05m

Ontario

Mon 2-6

05:35-14:05

1 stop6h 30m

S$ 330

ChicagoGrand Rapids

ORD - GRR

ORDGRR

Chicago O'Hare Intl

Tue 27-5

19:25-23:47

1 stop3h 22m

Grand Rapids Gerald R. Ford Intl

Wed 4-6

10:17-12:41

1 stop3h 24m

S$ 332

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 23-4

07:25-12:16

1 stop6h 51m

Ontario

Fri 25-4

17:15-00:53

1 stop5h 38m

S$ 344

ChicagoPortland

ORD - PWM

ORDPWM

Chicago O'Hare Intl

Wed 4-6

07:30-22:30

2 stops14h 00m

Portland

Wed 11-6

05:30-11:50

1 stop7h 20m

S$ 348

Flights are sorted by cheapest return flights first.

Deals found on 25-3

Showing 1-10 of 60 results
1
2
3
...
6

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$ 1,608). 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$ 144. Explore other affordable destinations below.

San Francisco

San Francisco

From S$ 107

Buffalo

Buffalo

From S$ 199

Rome

Rome

From S$ 719

Amsterdam Schiphol

Amsterdam Schiphol

From S$ 1,146

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
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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
1,169 reviews
EVA Air
8.4
Very Good
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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
1,047 reviews
EVA Air
8.4
Very Good
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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
826 reviews
EVA Air
8.4
Very Good
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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.
Emirates
8.0
Very Good
3,190 reviews
EVA Air
8.4
Very Good
1,169 reviews
Check prices

Comfort

8.3

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Food

8.0

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights from USA

Book a direct flight from one of these other cities located in USA.
Direct flights from Los Angeles
Direct flights from San Francisco
Direct flights from Honolulu
Direct flights from Seattle
Direct flights from Las Vegas
Direct flights from Boston
Direct flights from Miami
Direct flights from Orlando
Direct flights from Atlanta
Direct flights from Denver
Direct flights from Austin
Direct flights from San Diego
Direct flights from Portland
Direct flights from Minneapolis
Direct flights from Philadelphia
Direct flights from Anchorage
Direct flights from Charlotte
Direct flights from Pittsburgh
Direct flights from New Orleans
Direct flights from Tampa
Direct flights from Cleveland
Direct flights from Indianapolis
Direct flights from Nashville
Direct flights from Salt Lake City
Direct flights from Wichita
Direct flights from Fort Lauderdale
Direct flights from Fairbanks
Direct flights from San Antonio
Direct flights from Buffalo
Direct flights from Boise

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 25 March 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$ 1,137 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.

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?

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.