What is the cheapest airline that flies from Illinois to Singapore Changi?

Air India, Etihad Airways, and Air Canada are the most popular carriers operating from Illinois to Singapore Changi

How long does it take to fly to Singapore?

The flight from Illinois to Singapore depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Singapore (the most popular airport in Singapore), then the flight time is 24h 18m on average. If you fly from Moline (another popular airport in Illinois) to Singapore, then the average flight time is 26h 06m.

What airlines fly to Singapore?

United Airlines, Cathay Pacific and EVA Air are the top three most popular airlines that fly to Singapore from Illinois according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 12 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Illinois to Singapore Changi Airport refresh daily.

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

As of February 2026, there are 12 operators available to choose from for flights from Illinois to Singapore Changi Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Singapore Changi Airport.

What documentation or ID do you need to fly to Singapore Changi Airport?

The required travel and health documents for your Singapore Changi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore Changi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$364 Cheap Flights from Illinois to Singapore in 2026

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Find the cheapest flights from Illinois to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:45 pm - 6:35 pm

ORD

SIN

30h 50m

2 stops

8:45 am - 12:59 am

SIN

ORD

29h 14m

1 stop

$845United Airlines

Sun, May 17 - Sat, May 30

1:10 pm - 7:25 am

ORD

SIN

29h 15m

1 stop

11:00 pm - 11:10 am

SIN

ORD

49h 10m

2 stops

$848Air India

Fri, Apr 3 - Fri, Apr 10

1:10 pm - 7:25 am

ORD

SIN

29h 15m

1 stop

8:55 am - 11:10 am

SIN

ORD

39h 15m

2 stops

$852Air India

Mon, Jul 20 - Thu, Jul 23

2:33 pm - 8:00 am

ORD

SIN

27h 27m

2 stops

10:20 pm - 12:59 am

SIN

ORD

39h 39m

1 stop

$853United Airlines

Wed, Mar 4 - Fri, Mar 13

2:00 pm - 9:40 am

ORD

SIN

30h 40m

1 stop

9:00 pm - 8:35 am

SIN

ORD

24h 35m

1 stop

$860Etihad Airways

Mon, Apr 6 - Fri, Apr 17

1:10 pm - 9:35 am

ORD

SIN

30h 25m

1 stop

7:25 pm - 7:35 am

SIN

ORD

26h 10m

1 stop

$869Etihad Airways

Fri, Feb 27 - Fri, Mar 6

11:50 am - 11:20 pm

ORD

SIN

22h 30m

1 stop

11:05 am - 8:40 am

SIN

ORD

34h 35m

1 stop

$873ANA

Sat, May 2 - Wed, May 13

8:10 pm - 8:45 am

ORD

SIN

23h 35m

1 stop

11:05 pm - 9:40 am

SIN

ORD

23h 35m

1 stop

$876Turkish Airlines

Thu, Apr 30 - Thu, May 14

6:11 pm - 12:45 am

STL

SIN

41h 34m

2 stops

8:05 pm - 10:59 pm

SIN

STL

39h 54m

2 stops

$1,032Cathay Pacific

Mon, May 4 - Sat, May 9

6:21 am - 5:30 am

STL

SIN

34h 09m

2 stops

8:05 pm - 10:59 pm

SIN

STL

39h 54m

2 stops

$1,093Cathay Pacific

Tue, May 5 - Sat, May 9

Qatar Airways flights from Illinois to Singapore

Our best Qatar Airways deals on Illinois to Singapore flight tickets

Qatar Airways

Feb 22

ORD6:50 pmChicago O'Hare Intl

30h 05m

1 stop

SIN2:55 pmSingapore Changi

Feb 28

SIN9:20 pmSingapore Changi

55h 10m

2 stops

ORD2:30 pmChicago O'Hare Intl

$1,111

Qatar Airways

Feb 22

ORD6:50 pmChicago O'Hare Intl

30h 05m

1 stop

SIN2:55 pmSingapore Changi

Feb 28

SIN9:20 pmSingapore Changi

55h 10m

2 stops

ORD2:30 pmChicago O'Hare Intl

$1,112

Qatar Airways

Feb 27

ORD6:50 pmChicago O'Hare Intl

30h 05m

1 stop

SIN2:55 pmSingapore Changi

Mar 7

SIN9:20 pmSingapore Changi

55h 25m

2 stops

ORD2:45 pmChicago O'Hare Intl

$1,150

Cathay Pacific flights from Illinois to Singapore

Our best Cathay Pacific deals on Illinois to Singapore flight tickets

Cathay Pacific

Feb 20

ORD2:35 pmChicago O'Hare Intl

31h 20m

1 stop

SIN11:55 amSingapore Changi

Feb 24

SIN4:45 pmSingapore Changi

34h 10m

1 stop

ORD12:55 pmChicago O'Hare Intl

$947

Cathay Pacific

May 4

STL6:11 pmLambert-St Louis

41h 34m

2 stops

SIN12:45 amSingapore Changi

May 9

SIN8:05 pmSingapore Changi

39h 54m

2 stops

STL10:59 pmLambert-St Louis

$1,032

Cathay Pacific

May 5

STL6:21 amLambert-St Louis

34h 09m

2 stops

SIN5:30 amSingapore Changi

May 9

SIN8:05 pmSingapore Changi

39h 54m

2 stops

STL10:59 pmLambert-St Louis

$1,093

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 5/17

10:45 pm-6:35 pm

2 stops30h 50m

Singapore Changi

Sat 5/30

8:45 am-12:59 am

1 stop29h 14m

$845

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 4/3

1:10 pm-7:25 am

1 stop29h 15m

Singapore Changi

Fri 4/10

11:00 pm-11:10 am

2 stops49h 10m

$848

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 7/20

1:10 pm-7:25 am

1 stop29h 15m

Singapore Changi

Thu 7/23

8:55 am-11:10 am

2 stops39h 15m

$852

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 3/4

2:33 pm-8:00 am

2 stops27h 27m

Singapore Changi

Fri 3/13

10:20 pm-12:59 am

1 stop39h 39m

$853

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 4/6

2:00 pm-9:40 am

1 stop30h 40m

Singapore Changi

Fri 4/17

9:00 pm-8:35 am

1 stop24h 35m

$860

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 2/27

1:10 pm-9:35 am

1 stop30h 25m

Singapore Changi

Fri 3/6

7:25 pm-7:35 am

1 stop26h 10m

$869

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sat 5/2

11:50 am-11:20 pm

1 stop22h 30m

Singapore Changi

Wed 5/13

11:05 am-8:40 am

1 stop34h 35m

$873

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 4/30

8:10 pm-8:45 am

1 stop23h 35m

Singapore Changi

Thu 5/14

11:05 pm-9:40 am

1 stop23h 35m

$876

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 5/4

6:11 pm-12:45 am

2 stops41h 34m

Singapore Changi

Sat 5/9

8:05 pm-10:59 pm

2 stops39h 54m

$1,032

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 5/5

6:21 am-5:30 am

2 stops34h 09m

Singapore Changi

Sat 5/9

8:05 pm-10:59 pm

2 stops39h 54m

$1,093

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Singapore

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

Prices

Airlines

Other information

What is the cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Illinois, with most prices found around $849. If you aren’t able to travel to Singapore during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $876.

How far in advance should I book a flight to Singapore?

You are more likely to see cheaper flights to Singapore from Illinois when booking week ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,150 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Illinois for as low as $984 on momondo.

Can stopping save me money on Illinois to Singapore flights?

You could potentially save up to 62% on your flight if you consider stops on a Illinois to Singapore flight.

Cheap Illinois to Singapore flight deals and tips

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

Fastest flight time	23h 28m
Direct flights	None

The fastest flight from Illinois to Singapore takes 23h 28m

There are no direct flights from Illinois to Singapore. There are no popular flight routes from Illinois to Singapore.

Search flight deals

When did momondo last update prices for flights from Illinois to Singapore Changi Airport?
Prices for flights from Illinois to Singapore Changi Airport refresh daily.
How many operators does momondo search for flights from Illinois to Singapore Changi Airport?
As of February 2026, there are 12 operators available to choose from for flights from Illinois to Singapore Changi Airport.
How old do you have to be to fly from Illinois to Singapore Changi Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The required travel and health documents for your Singapore Changi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore Changi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Singapore

Compare and see reviews for airlines that fly from Illinois to Singapore with momondo

Airline	Rating	Free Cancellation	Price
Air India	PriceFrom $675	Free Cancellation	Rating 5.5 2,964 reviews	Search Air India flights
ANA	PriceFrom $698	Free Cancellation	Rating 8.4 1,092 reviews	Search ANA flights
Cathay Pacific	PriceFrom $698	Free Cancellation	Rating 7.6 1,162 reviews	Search Cathay Pacific flights
United Airlines	PriceFrom $709	Free Cancellation	Rating 7.4 9,283 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $799	Free Cancellation	Rating 7.3 4,212 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $830	Free Cancellation	Rating 7.3 1,394 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $858	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
Air Canada	PriceFrom $872	Free Cancellation	Rating 7.1 10,717 reviews	Search Air Canada flights
Japan Airlines	PriceFrom $988	Free Cancellation	Rating 8.3 1,704 reviews	Search Japan Airlines flights
EVA Air	PriceFrom $1,086	Free Cancellation	Rating 8.4 1,353 reviews	Search EVA Air flights

Why use momondo?

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

Finding the right flight to Singapore from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Singapore quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Illinois to Singapore flights to just show those with flexible booking policies.

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

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 Singapore from Illinois.

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

Yes. momondo can track prices for Illinois to Singapore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.