Find flights
When to book
Airlines
FAQs

Cheap flights from Singapore to Illinois from S$ 613

SIN — ORD
27 Oct — 3 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Illinois

Thu 15-1007:00 -
1 stop20h 43m
Wed 28-1015:30 -
1 stop26h 30m
Deal found 25-9S$ 999
Fri 20-1108:40 -
1 stop19h 57m
Sun 29-1115:30 -
1 stop25h 30m
Deal found 22-9S$ 1,028
Tue 10-1108:40 -
1 stop19h 57m
Tue 17-1115:30 -
1 stop25h 30m
Deal found 26-9S$ 1,040
Thu 19-1108:40 -
1 stop19h 57m
Fri 27-1115:30 -
1 stop25h 30m
Deal found 27-9S$ 1,041
Tue 22-1208:40 -
1 stop25h 24m
Mon 4-121:47 -
2 stops43h 13m
Deal found 22-9S$ 1,050
Sat 7-1108:40 -
1 stop19h 57m
Sat 14-1115:45 -
2 stops43h 10m
Deal found 23-9S$ 1,064
Fri 20-1108:40 -
1 stop19h 57m
Sat 28-1115:30 -
2 stops64h 25m
Deal found 25-9S$ 1,070

Find flight deals from Singapore to Illinois

Round-trip from

S$ 999

One-way from

S$ 613

Popular in

August

Cheapest in

September

Average price

S$ 1,203
Air Canada
  • Air Canada
  • 15-10-28-10
  • 2 total stops
  • 47h 13m total
  • Singapore to Illinois
Search Deals
Air Canada
  • Air Canada
  • 21-11-31-12
  • 1 total stop
  • 19h 57m total
  • Singapore to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (S$ 364 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (S$ 144 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Singapore to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sat 21-11

08:40-14:37

1 stop19h 57m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 613

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Fri 4-12

08:40-17:00

2 stops22h 20m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 684

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Mon 2-11

21:00-19:59

2 stops36h 59m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 686

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Mon 5-10

22:00-09:30

1 stop24h 30m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 716

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sat 24-10

22:50-06:34

2 stops44h 44m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 871

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Fri 2-10

08:45-05:59

1 stop34h 14m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 964

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Wed 30-9

08:45-12:45

1 stop41h 00m

Chicago O'Hare Intl

Wed 31-12

00:00-13:30

Nonstop0h 00m

S$ 964

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Thu 5-11

10:10-21:45

1 stop25h 35m

Chicago O'Hare Intl

Mon 9-11

06:00-20:15

1 stop24h 15m

S$ 1,309

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Wed 23-12

19:25-07:55

1 stop26h 30m

Chicago O'Hare Intl

Wed 6-1

13:10-09:35

1 stop30h 25m

S$ 1,312

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Thu 24-12

19:25-07:55

1 stop26h 30m

Chicago O'Hare Intl

Sun 3-1

13:10-09:35

1 stop30h 25m

S$ 1,355

Flights are sorted by cheapest return flights first.

Deals found on 22-9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Singapore to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Singapore with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Singapore to Illinois

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

See what other customers who have flown with EVA Air,Korean Air, andJapan Airlines from Singapore to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,535 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking
EVA Air
8.5
Very Good
1,535 reviews
EVA Air
8.5
Very Good
1,535 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking
Korean Air
8.4
Very Good
1,218 reviews
EVA Air
8.5
Very Good
1,535 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking
Japan Airlines
8.3
Very Good
1,923 reviews
EVA Air
8.5
Very Good
1,535 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking
United Airlines
7.4
Good
10,244 reviews
EVA Air
8.5
Very Good
1,535 reviews
Check prices

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20
10.0
Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Related info for your journey

  • What airport do you fly from for flights from Singapore to Illinois?

    Singapore Changi (SIN) is the airport you will fly out of if you book a flight from Singapore to Illinois. It is only a 16.9 km journey to Changi (SIN) from Singapore’s city centre.

  • How long is the flight from Singapore to Illinois?

    Departing from Singapore to Illinois will take you 25h 35m. Airlines will cover a distance of 15039 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Singapore to Illinois that include hotel bookings?

    Yes. In addition to deals on Singapore to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Illinois.

  • Can I find deals for business class flights from Singapore to Illinois?

    Yes. Cheapflights offers flight deals from Singapore to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Singapore to Illinois

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 1,202AverageS$ 1,519FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
EVA AirCheapestS$ 1,489AverageS$ 1,737FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

How does Cheapflights help users find flights from Singapore to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Singapore to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Singapore to Illinois.

Can Cheapflights find flights from Singapore to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Singapore to Illinois flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Singapore to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want 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.