How long is the flight from Illinois to Singapore?

Flight times from Illinois to Singapore vary, but if you’re flying out of Chicago and flying into Singapore (one of the most popular routes), then the duration is 23h 55m on average. Another popular route from Illinois to Singapore is flying from Moline to Singapore, which will take roughly 30h. Keep in mind that layovers or delays could extend your travel time.

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 50% 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.

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

Philippine Airlines, Cathay Pacific, and Delta are the most popular carriers operating from Illinois to Singapore

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

Prices for flights from Illinois to Singapore refresh daily.

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

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

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

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.

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

The required travel and health documents for your Singapore 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$432 Cheap Flights from Illinois to Singapore in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:27 am - 3:45 pm

STL

SIN

43h 18m

2 stops

7:40 pm - 11:58 pm

SIN

STL

41h 18m

2 stops

$1,142Qatar Airways

Sun, Oct 4 - Mon, Oct 12

12:10 pm - 5:15 am

STL

SIN

28h 05m

2 stops

7:00 am - 8:24 pm

SIN

STL

26h 24m

2 stops

$1,145Air Canada

Tue, Aug 11 - Tue, Aug 18

3:30 pm - 4:30 pm

STL

SIN

36h 00m

1 stop

11:40 pm - 1:25 pm

SIN

STL

26h 45m

1 stop

$1,172Lufthansa

Sun, Oct 4 - Mon, Oct 12

3:30 pm - 4:30 pm

STL

SIN

36h 00m

1 stop

11:55 pm - 9:09 pm

SIN

STL

34h 14m

2 stops

$1,175Lufthansa

Sun, Oct 4 - Mon, Oct 12

7:20 pm - 9:15 pm

ORD

SIN

36h 55m

1 stop

1:35 am - 7:52 pm

SIN

ORD

31h 17m

3 stops

$1,192Multiple Airlines

Mon, Oct 12 - Tue, Oct 27

7:20 pm - 3:45 pm

ORD

SIN

31h 25m

1 stop

3:15 am - 11:59 pm

SIN

ORD

33h 44m

2 stops

$1,194Qatar Airways

Sat, Sep 5 - Fri, Sep 11

6:20 pm - 6:15 am

ORD

SIN

22h 55m

1 stop

11:05 am - 8:40 am

SIN

ORD

34h 35m

1 stop

$1,195United Airlines

Wed, Jul 15 - Sat, Jul 18

11:50 am - 12:45 am

ORD

SIN

23h 55m

1 stop

6:15 am - 4:45 am

SIN

ORD

35h 30m

2 stops

$1,196ANA

Sun, Aug 9 - Mon, Aug 24

7:40 pm - 11:55 pm

ORD

SIN

39h 15m

2 stops

7:30 am - 11:29 pm

SIN

ORD

28h 59m

2 stops

$1,198Delta

Sun, Aug 2 - Sun, Aug 9

9:30 pm - 6:35 pm

ORD

SIN

32h 05m

2 stops

8:45 am - 1:15 am

SIN

ORD

29h 30m

2 stops

$1,199United Airlines

Sun, Jul 19 - Fri, Jul 24

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Delta flights from Illinois to Singapore

Our best Delta deals on Illinois to Singapore flight tickets

Delta

Aug 2

ORD7:40 pmChicago O'Hare Intl

39h 15m

2 stops

SIN11:55 pmSingapore Changi

Aug 9

SIN7:30 amSingapore Changi

28h 59m

2 stops

ORD11:29 pmChicago O'Hare Intl

$1,198

Delta

Aug 14

ORD12:30 pmChicago O'Hare Intl

41h 45m

1 stop

SIN7:15 pmSingapore Changi

Aug 21

SIN7:30 amSingapore Changi

28h 59m

2 stops

ORD11:29 pmChicago O'Hare Intl

$1,203

Delta

Aug 15

MDW6:11 amChicago Midway

33h 49m

2 stops

SIN5:00 amSingapore Changi

Aug 22

SIN10:00 pmSingapore Changi

31h 15m

2 stops

MDW4:15 pmChicago Midway

$1,208

Air Canada flights from Illinois to Singapore

Our best Air Canada deals on Illinois to Singapore flight tickets

Air Canada

Aug 11

STL12:10 pmLambert-St Louis

28h 05m

2 stops

SIN5:15 amSingapore Changi

Aug 18

SIN7:00 amSingapore Changi

26h 24m

2 stops

STL8:24 pmLambert-St Louis

$1,145

Air Canada

Aug 2

ORD3:40 pmChicago O'Hare Intl

24h 35m

1 stop

SIN5:15 amSingapore Changi

Dec 3

SIN8:40 amSingapore Changi

36h 33m

2 stops

ORD7:13 amChicago O'Hare Intl

$1,214

Air Canada

Jul 14

ORD8:45 amChicago O'Hare Intl

31h 30m

2 stops

SIN5:15 amSingapore Changi

Jul 25

SIN7:00 amSingapore Changi

20h 36m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,220

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 10/4

7:27 am-3:45 pm

2 stops43h 18m

Singapore Changi

Mon 10/12

7:40 pm-11:58 pm

2 stops41h 18m

$1,142

Quickest round-trip

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 8/11

12:10 pm-5:15 am

2 stops28h 05m

Singapore Changi

Tue 8/18

7:00 am-8:24 pm

2 stops26h 24m

$1,145

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 10/4

3:30 pm-4:30 pm

1 stop36h 00m

Singapore Changi

Mon 10/12

11:40 pm-1:25 pm

1 stop26h 45m

$1,172

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 10/4

3:30 pm-4:30 pm

1 stop36h 00m

Singapore Changi

Mon 10/12

11:55 pm-9:09 pm

2 stops34h 14m

$1,175

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 10/12

7:20 pm-9:15 pm

1 stop36h 55m

Singapore Changi

Tue 10/27

1:35 am-7:52 pm

3 stops31h 17m

$1,192

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sat 9/5

7:20 pm-3:45 pm

1 stop31h 25m

Singapore Changi

Fri 9/11

3:15 am-11:59 pm

2 stops33h 44m

$1,194

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 7/15

6:20 pm-6:15 am

1 stop22h 55m

Singapore Changi

Sat 7/18

11:05 am-8:40 am

1 stop34h 35m

$1,195

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 8/9

11:50 am-12:45 am

1 stop23h 55m

Singapore Changi

Mon 8/24

6:15 am-4:45 am

2 stops35h 30m

$1,196

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 8/2

7:40 pm-11:55 pm

2 stops39h 15m

Singapore Changi

Sun 8/9

7:30 am-11:29 pm

2 stops28h 59m

$1,198

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 7/19

9:30 pm-6:35 pm

2 stops32h 05m

Singapore Changi

Fri 7/24

8:45 am-1:15 am

2 stops29h 30m

$1,199

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 January is, on average, the cheapest month to fly to Singapore from Illinois, with most prices found around $492. If you aren’t able to travel to Singapore during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $587.

How far in advance should I book a flight from Illinois 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 $1,171 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 $951 on momondo.

Can stopping save me money on Illinois to Singapore flights?

You could potentially save up to 5% 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 55m
Direct flights	None

The fastest flight from Illinois to Singapore takes 22h 55m

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

Search flight deals

Frequently asked questions about flying from Illinois to Singapore

When did momondo last update prices for flights from Illinois to Singapore?
Prices for flights from Illinois to Singapore refresh daily.
How many operators does momondo search for flights from Illinois to Singapore?
As of July 2026, there are 12 operators available to choose from for flights from Illinois to Singapore.
How old do you have to be to fly from Illinois to Singapore?
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.
What documentation or ID do you need to fly to Singapore?
The required travel and health documents for your Singapore 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. 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
ANA	PriceFrom $689	Free Cancellation	Rating 8.3 1,260 reviews	Search ANA flights
Cathay Pacific	PriceFrom $692	Free Cancellation	Rating 7.6 1,403 reviews	Search Cathay Pacific flights
United Airlines	PriceFrom $709	Free Cancellation	Rating 7.4 9,931 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $721	Free Cancellation	Rating 7.4 4,437 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $758	Free Cancellation	Rating 8.4 1,220 reviews	Search Korean Air flights
Japan Airlines	PriceFrom $814	Free Cancellation	Rating 8.3 1,859 reviews	Search Japan Airlines flights
Etihad Airways	PriceFrom $829	Free Cancellation	Rating 7.3 1,473 reviews	Search Etihad Airways flights
Air Canada	PriceFrom $884	Free Cancellation	Rating 7.1 11,295 reviews	Search Air Canada flights
Qatar Airways	PriceFrom $963	Free Cancellation	Rating 7.3 3,742 reviews	Search Qatar Airways flights
Delta	PriceFrom $999	Free Cancellation	Rating 7.8 8,454 reviews	Search Delta flights

Why use momondo?

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

It is quick and easy to find Illinois to Singapore flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Singapore that suits you.

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 for Illinois to Singapore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Singapore from Illinois. 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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Cheap flights from Illinois to Singapore from $432

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 12/2. 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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Delta flights from Illinois to Singapore

Our best Delta deals on Illinois to Singapore flight tickets

Air Canada flights from Illinois to Singapore

Our best Air Canada deals on Illinois to Singapore flight tickets

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

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How to get the cheapest flight ticket from Illinois to Singapore

What is the cheapest month to fly to Singapore?

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

Can stopping save me money on Illinois to Singapore flights?

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

What airlines fly to Singapore?

How long is the flight from Illinois 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

Frequently asked questions about flying from Illinois to Singapore

Best airlines flying from Illinois to Singapore

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

Why use momondo?

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

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

Singapore flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Singapore

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

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List of cabin classes available on flights landing in Singapore. Availability may vary depending on flight origin and airline.

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Explore popular destinations other users love

According to popular flight searches on momondo this year