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Cheap flights from Singapore to Illinois from $499

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Singapore to Illinois departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:15 am - 6:25 pmSIN-ORD
45h 10m2 stops
Multiple Airlines Logo
1:30 pm - 6:55 pmORD-SIN
39h 25m1 stop
$914Multiple Airlines
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Sun, Jan 25 - Fri, Jan 30
Air Canada Logo
11:10 pm - 9:52 pmSIN-ORD
36h 42m2 stops
Air Canada Logo
3:40 pm - 7:00 amORD-SIN
25h 20m1 stop
$921Air Canada
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Wed, Nov 26 - Wed, Dec 3
United Airlines Logo
10:10 am - 11:14 pmSIN-ORD
27h 04m1 stop
United Airlines Logo
4:20 pm - 8:00 amORD-SIN
25h 40m1 stop
$927United Airlines
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Tue, Feb 10 - Fri, Feb 20
United Airlines Logo
10:10 am - 11:14 pmSIN-ORD
27h 04m1 stop
United Airlines Logo
6:17 pm - 8:00 amORD-SIN
23h 43m1 stop
$928United Airlines
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Tue, Feb 10 - Fri, Feb 20
United Airlines Logo
8:40 pm - 5:27 amSIN-ORD
21h 47m1 stop
United Airlines Logo
9:05 pm - 6:25 pmORD-SIN
32h 20m1 stop
$929United Airlines
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Thu, Apr 16 - Mon, Apr 20
Cathay Pacific Logo
1:50 am - 2:25 pmSIN-ORD
25h 35m1 stop
Cathay Pacific Logo
4:00 pm - 3:05 pmORD-SIN
34h 05m1 stop
$940Cathay Pacific
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Sun, Apr 19 - Tue, May 5
Cathay Pacific Logo
1:25 am - 12:55 pmSIN-ORD
25h 30m1 stop
Cathay Pacific Logo
2:35 pm - 5:40 amORD-SIN
25h 05m1 stop
$941Cathay Pacific
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Mon, Feb 9 - Fri, Feb 20
IndiGo Logo
11:15 am - 6:25 pmSIN-ORD
45h 10m2 stops
IndiGo Logo
11:50 am - 5:20 pmORD-SIN
39h 30m2 stops
$945IndiGo
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Sun, Jan 25 - Fri, Jan 30
Korean Air Logo
1:10 am - 9:40 amSIN-ORD
21h 30m1 stop
Korean Air Logo
12:20 pm - 5:00 amORD-SIN
27h 40m1 stop
$948Korean Air
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Wed, Apr 15 - Mon, Apr 20
Korean Air Logo
1:10 am - 9:40 amSIN-ORD
21h 30m1 stop
Korean Air Logo
12:20 pm - 5:00 amORD-SIN
27h 40m1 stop
$950Korean Air
Find Deal
Wed, Apr 15 - Mon, Apr 20

Cathay Pacific flights from Singapore to Illinois

Our best Cathay Pacific deals on Singapore to Illinois flight tickets
Cathay Pacific
Apr 19
SIN1:50 amSingapore Changi
25h 35m
1 stop
ORD2:25 pmChicago O'Hare Intl
May 5
ORD4:00 pmChicago O'Hare Intl
34h 05m
1 stop
SIN3:05 pmSingapore Changi
$940
Find similar
Cathay Pacific
Feb 9
SIN1:25 amSingapore Changi
25h 30m
1 stop
ORD12:55 pmChicago O'Hare Intl
Feb 20
ORD2:35 pmChicago O'Hare Intl
25h 05m
1 stop
SIN5:40 amSingapore Changi
$941
Find similar
Cathay Pacific
Feb 5
SIN1:25 amSingapore Changi
25h 30m
1 stop
ORD12:55 pmChicago O'Hare Intl
Feb 14
ORD2:35 pmChicago O'Hare Intl
39h 35m
1 stop
SIN8:10 pmSingapore Changi
$942
Find similar

Korean Air flights from Singapore to Illinois

Our best Korean Air deals on Singapore to Illinois flight tickets
Korean Air
Apr 15
SIN1:10 amSingapore Changi
21h 30m
1 stop
ORD9:40 amChicago O'Hare Intl
Apr 20
ORD12:20 pmChicago O'Hare Intl
27h 40m
1 stop
SIN5:00 amSingapore Changi
$948
Find similar
Korean Air
Apr 15
SIN1:10 amSingapore Changi
21h 30m
1 stop
ORD9:40 amChicago O'Hare Intl
Apr 20
ORD12:20 pmChicago O'Hare Intl
27h 40m
1 stop
SIN5:00 amSingapore Changi
$950
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Singapore to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 4, 2025.
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

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Sun 1/25

11:15 am-6:25 pm

2 stops45h 10m

Chicago O'Hare Intl

Fri 1/30

1:30 pm-6:55 pm

1 stop39h 25m

$914

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 11/26

11:10 pm-9:52 pm

2 stops36h 42m

Chicago O'Hare Intl

Wed 12/3

3:40 pm-7:00 am

1 stop25h 20m

$921

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 2/10

10:10 am-11:14 pm

1 stop27h 04m

Chicago O'Hare Intl

Fri 2/20

4:20 pm-8:00 am

1 stop25h 40m

$927

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 2/10

10:10 am-11:14 pm

1 stop27h 04m

Chicago O'Hare Intl

Fri 2/20

6:17 pm-8:00 am

1 stop23h 43m

$928

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 4/16

8:40 pm-5:27 am

1 stop21h 47m

Chicago O'Hare Intl

Mon 4/20

9:05 pm-6:25 pm

1 stop32h 20m

$929

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Sun 4/19

1:50 am-2:25 pm

1 stop25h 35m

Chicago O'Hare Intl

Tue 5/5

4:00 pm-3:05 pm

1 stop34h 05m

$940

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Mon 2/9

1:25 am-12:55 pm

1 stop25h 30m

Chicago O'Hare Intl

Fri 2/20

2:35 pm-5:40 am

1 stop25h 05m

$941

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Sun 1/25

11:15 am-6:25 pm

2 stops45h 10m

Chicago O'Hare Intl

Fri 1/30

11:50 am-5:20 pm

2 stops39h 30m

$945

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 4/15

1:10 am-9:40 am

1 stop21h 30m

Chicago O'Hare Intl

Mon 4/20

12:20 pm-5:00 am

1 stop27h 40m

$948

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 4/15

1:10 am-9:40 am

1 stop21h 30m

Chicago O'Hare Intl

Mon 4/20

12:20 pm-5:00 am

1 stop27h 40m

$950

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Singapore to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Singapore is in October. Flight prices, which tend to average around $919, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of October, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $934.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Singapore to Illinois is on a Monday when prices can be found for as low as $1,114. Flights from Singapore to Illinois on a Thursday will generally be more expensive and average around $1,564. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Singapore to Illinois during this time can be as low as $1,166. Flights in the morning are often more expensive with an average ticket price of $1,286.

Can stopping save me money on Singapore to Illinois flights?

You could potentially save up to 11% on your flight if you consider stops on a Singapore to Illinois flight.

Cheap Singapore to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Singapore to Illinois

Direct flights

None
There are no direct flights from Singapore to Illinois. There are no popular flight routes from Singapore to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Singapore Changi Airport to Illinois?

    Prices for flights from Singapore Changi Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Singapore Changi Airport to Illinois?

  • How old do you have to be to fly from Singapore Changi Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Singapore Changi Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Singapore to Illinois

Compare and see reviews for airlines that fly from Singapore to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $802Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Singapore to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Singapore to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Singapore to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Singapore on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Singapore to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Singapore.

I’m not ready to book a flight from Singapore to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Singapore. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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