What airlines fly to Singapore?

United Airlines, Cathay Pacific and Turkish Airlines 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 42% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 14 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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

Air India, Delta, and Qatar Airways 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 25h 17m on average. If you fly from Moline (another popular airport in Illinois) to Singapore, then the average flight time is 37h 27m.

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 December 2025, there are 14 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.

$252 Cheap Flights from Illinois to Singapore in 2025/26

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7:04 am - 12:25 am

STL

SIN

27h 21m2 stops

4:45 pm - 11:18 pm

SIN

STL

44h 33m2 stops

$993Cathay Pacific

Mon, Feb 9 - Mon, Feb 16

6:43 pm - 9:25 am

STL

SIN

48h 42m2 stops

10:00 am - 11:48 pm

SIN

STL

27h 48m2 stops

$1,034Cathay Pacific

Sat, Jan 31 - Wed, Feb 18

11:05 am - 5:40 am

STL

SIN

28h 35m2 stops

8:40 am - 6:14 pm

SIN

STL

47h 34m2 stops

$1,107Cathay Pacific

Fri, Jan 16 - Sat, Jan 31

11:05 am - 6:35 am

STL

SIN

29h 30m2 stops

8:15 am - 7:51 pm

SIN

STL

25h 36m2 stops

$1,129American Airlines

Fri, Jan 16 - Sat, Jan 31

5:00 pm - 8:00 am

STL

SIN

25h 00m1 stop

10:10 am - 10:17 pm

SIN

STL

26h 07m2 stops

$1,130United Airlines

Mon, Feb 9 - Mon, Feb 16

4:49 pm - 8:15 pm

STL

SIN

37h 26m2 stops

10:10 am - 10:14 pm

SIN

STL

26h 04m3 stops

$1,180United Airlines

Sat, Jan 31 - Wed, Feb 18

2:26 pm - 2:55 pm

STL

SIN

34h 29m2 stops

8:15 pm - 6:02 pm

SIN

STL

35h 47m2 stops

$1,181Qatar Airways

Sat, Feb 21 - Fri, Feb 27

11:28 am - 2:55 pm

MLI

SIN

37h 27m2 stops

8:15 pm - 10:23 pm

SIN

MLI

40h 08m2 stops

$1,216Qatar Airways

Fri, Jan 23 - Tue, Jan 27

2:00 pm - 7:00 am

ORD

SIN

27h 00m2 stops

8:30 am - 8:00 pm

SIN

ORD

24h 30m2 stops

$1,243Air Canada

Fri, Mar 6 - Mon, Mar 9

3:40 pm - 5:15 am

ORD

SIN

24h 35m1 stop

8:10 am - 2:45 pm

SIN

ORD

43h 35m2 stops

$1,245Air Canada

Tue, May 26 - Wed, Jun 10

Qatar Airways flights from Illinois to Singapore

Our best Qatar Airways deals on Illinois to Singapore flight tickets

Qatar Airways

Feb 21

STL2:26 pmLambert-St Louis

34h 29m

2 stops

SIN2:55 pmSingapore Changi

Feb 27

SIN8:15 pmSingapore Changi

35h 47m

2 stops

STL6:02 pmLambert-St Louis

$1,181

Find similar

Qatar Airways

Jan 23

MLI11:28 amMoline Quad-City

37h 27m

2 stops

SIN2:55 pmSingapore Changi

Jan 27

SIN8:15 pmSingapore Changi

40h 08m

2 stops

MLI10:23 pmMoline Quad-City

$1,216

Find similar

Qatar Airways

Feb 2

EVV7:10 amEvansville Dress Regional

35h 35m

2 stops

SIN8:45 amSingapore Changi

Feb 4

SIN3:15 amSingapore Changi

31h 43m

2 stops

EVV8:58 pmEvansville Dress Regional

$1,347

Find similar

EVA Air flights from Illinois to Singapore

Our best EVA Air deals on Illinois to Singapore flight tickets

EVA Air

Jan 6

ORD11:30 pmChicago O'Hare Intl

22h 35m

1 stop

SIN12:05 pmSingapore Changi

Jan 18

SIN3:45 pmSingapore Changi

41h 50m

1 stop

ORD7:35 pmChicago O'Hare Intl

$1,251

Find similar

EVA Air

Jan 10

ORD11:30 pmChicago O'Hare Intl

22h 35m

1 stop

SIN12:05 pmSingapore Changi

Jan 16

SIN3:45 pmSingapore Changi

39h 17m

2 stops

ORD5:02 pmChicago O'Hare Intl

$1,359

Find similar

EVA Air

Jan 1

ORD11:30 pmChicago O'Hare Intl

25h 00m

1 stop

SIN2:30 pmSingapore Changi

Jan 20

SIN3:45 pmSingapore Changi

41h 50m

1 stop

ORD7:35 pmChicago O'Hare Intl

$1,384

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 2/9

7:04 am-12:25 am

2 stops27h 21m

Singapore Changi

Mon 2/16

4:45 pm-11:18 pm

2 stops44h 33m

$993

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 1/31

6:43 pm-9:25 am

2 stops48h 42m

Singapore Changi

Wed 2/18

10:00 am-11:48 pm

2 stops27h 48m

$1,034

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 1/16

11:05 am-5:40 am

2 stops28h 35m

Singapore Changi

Sat 1/31

8:40 am-6:14 pm

2 stops47h 34m

$1,107

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Fri 1/16

11:05 am-6:35 am

2 stops29h 30m

Singapore Changi

Sat 1/31

8:15 am-7:51 pm

2 stops25h 36m

$1,129

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 2/9

5:00 pm-8:00 am

1 stop25h 00m

Singapore Changi

Mon 2/16

10:10 am-10:17 pm

2 stops26h 07m

$1,130

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 1/31

4:49 pm-8:15 pm

2 stops37h 26m

Singapore Changi

Wed 2/18

10:10 am-10:14 pm

3 stops26h 04m

$1,180

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 2/21

2:26 pm-2:55 pm

2 stops34h 29m

Singapore Changi

Fri 2/27

8:15 pm-6:02 pm

2 stops35h 47m

$1,181

MolineSingapore

MLI - SIN

MLISIN

Moline Quad-City

Fri 1/23

11:28 am-2:55 pm

2 stops37h 27m

Singapore Changi

Tue 1/27

8:15 pm-10:23 pm

2 stops40h 08m

$1,216

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 3/6

2:00 pm-7:00 am

2 stops27h 00m

Singapore Changi

Mon 3/9

8:30 am-8:00 pm

2 stops24h 30m

$1,243

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 5/26

3:40 pm-5:15 am

1 stop24h 35m

Singapore Changi

Wed 6/10

8:10 am-2:45 pm

2 stops43h 35m

$1,245

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 February is, on average, the cheapest month to fly to Singapore from Illinois, with most prices found around $801. If you aren’t able to travel to Singapore during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $849.

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

The cheapest day to depart from Illinois to Singapore is on a Tuesday when prices can be found for as low as $1,166. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $1,365.

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

At noon is the cheapest time of day to fly from Illinois to Singapore when you can find flight prices for as low as $1,148. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,434 on average. Flights to Singapore from Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,147 when searching weeks 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 $1,063 on momondo.

Can stopping save me money on Illinois to Singapore flights?

You could potentially save up to 65% 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	22h 25m
Direct flights	None

The fastest flight from Illinois to Singapore takes 22h 25m

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 December 2025, there are 14 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 2,958 reviews	Search Air India flights
Cathay Pacific	PriceFrom $701	Free Cancellation	Rating 7.6 1,106 reviews	Search Cathay Pacific flights
United Airlines	PriceFrom $709	Free Cancellation	Rating 7.4 9,113 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $770	Free Cancellation	Rating 7.3 4,126 reviews	Search Turkish Airlines flights
Japan Airlines	PriceFrom $791	Free Cancellation	Rating 8.3 1,662 reviews	Search Japan Airlines flights
Etihad Airways	PriceFrom $830	Free Cancellation	Rating 7.4 1,339 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $850	Free Cancellation	Rating 7.4 3,697 reviews	Search Qatar Airways flights
Air Canada	PriceFrom $884	Free Cancellation	Rating 7.1 10,562 reviews	Search Air Canada flights
Korean Air	PriceFrom $940	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
ANA	PriceFrom $1,024	Free Cancellation	Rating 8.4 1,049 reviews	Search ANA 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.

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Cheap flights from Illinois to Singapore from $252

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Singapore departing on 3/17. 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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Big names and deals

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Filter for what you want

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Qatar Airways flights from Illinois to Singapore

Our best Qatar Airways deals on Illinois to Singapore flight tickets

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How to get the cheapest flight ticket from Illinois to Singapore

What is the cheapest month to fly to Singapore?

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

The cheapest day to depart from Illinois to Singapore is on a Tuesday when prices can be found for as low as $1,166. The most expensive day to fly to Singapore is Friday, with ticket prices averaging around $1,365.

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

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

Can stopping save me money on Illinois to Singapore flights?

You could potentially save up to 65% on your flight if you consider stops on a Illinois to Singapore flight.

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

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

What airlines fly to Singapore?

How long does it take to fly to Singapore?

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

Direct flights

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

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

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

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

Best airlines flying from Illinois to Singapore

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

Why use momondo?

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

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

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

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

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Singapore

Fly your favorite airline to Singapore

Airlines are sorted and displayed according to clicks in the past 7 days on momondo