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Cheap flights from Illinois to Singapore from $353

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air India Logo
1:30 pm - 6:55 pmORD-SIN
39h 25m1 stop
Air India Logo
11:00 pm - 11:30 amSIN-ORD
50h 30m2 stops
$933Air India
Find Deal
dom, nov 30 - qua, dez 10
Cathay Pacific Logo
2:35 pm - 11:55 amORD-SIN
31h 20m1 stop
Cathay Pacific Logo
7:40 am - 12:55 pmSIN-ORD
19h 15m1 stop
$937Cathay Pacific
Find Deal
dom, jan 18 - seg, fev 2
Cathay Pacific Logo
2:35 pm - 5:40 amORD-SIN
25h 05m1 stop
Cathay Pacific Logo
1:25 am - 12:55 pmSIN-ORD
25h 30m1 stop
$938Cathay Pacific
Find Deal
dom, jan 18 - ter, jan 27
Etihad Airways Logo
1:10 pm - 9:35 amORD-SIN
30h 25m1 stop
Etihad Airways Logo
7:25 pm - 7:35 amSIN-ORD
26h 10m1 stop
$944Etihad Airways
Find Deal
dom, jan 11 - dom, mar 1
Turkish Airlines Logo
8:20 pm - 5:35 pmORD-SIN
31h 15m1 stop
Turkish Airlines Logo
5:15 am - 6:25 pmSIN-ORD
27h 10m1 stop
$948Turkish Airlines
Find Deal
seg, jan 12 - sáb, mar 7
American Airlines Logo
5:40 pm - 6:35 amORD-SIN
22h 55m1 stop
American Airlines Logo
2:20 am - 7:35 amSIN-ORD
19h 15m1 stop
$949American Airlines
Find Deal
sex, jan 16 - sex, jan 23
Turkish Airlines Logo
11:50 am - 8:45 amORD-SIN
30h 55m1 stop
Turkish Airlines Logo
11:25 pm - 10:05 amSIN-ORD
24h 40m1 stop
$952Turkish Airlines
Find Deal
seg, dez 1 - seg, dez 8
Air Canada Logo
3:45 pm - 7:05 amORD-SIN
50h 20m2 stops
Air Canada Logo
9:10 am - 12:53 pmSIN-ORD
40h 43m1 stop
$957Air Canada
Find Deal
sáb, abr 4 - sáb, abr 11
Air Canada Logo
5:50 pm - 7:05 amORD-SIN
48h 15m2 stops
Air Canada Logo
11:55 pm - 7:50 pmSIN-ORD
32h 55m2 stops
$969Air Canada
Find Deal
sáb, abr 18 - seg, abr 27
Etihad Airways Logo
1:10 pm - 9:35 amORD-SIN
30h 25m1 stop
Etihad Airways Logo
7:25 pm - 8:35 amSIN-ORD
26h 10m1 stop
$988Etihad Airways
Find Deal
sáb, mar 7 - sáb, mar 21

Air India flights from Illinois to Singapore

Our best Air India deals on Illinois to Singapore flight tickets
Air India
Nov 30
ORD1:30 pmChicago O'Hare Intl
39h 25m
1 stop
SIN6:55 pmSingapore Changi
Dec 10
SIN11:00 pmSingapore Changi
50h 30m
2 stops
ORD11:30 amChicago O'Hare Intl
$933
Find similar
Air India
Dec 1
ORD1:30 pmChicago O'Hare Intl
27h 30m
1 stop
SIN7:00 amSingapore Changi
Dec 8
SIN11:00 pmSingapore Changi
50h 30m
2 stops
ORD11:30 amChicago O'Hare Intl
$946
Find similar
Air India
Nov 12
ORD1:30 pmChicago O'Hare Intl
42h 15m
1 stop
SIN9:45 pmSingapore Changi
Nov 17
SIN11:00 pmSingapore Changi
50h 30m
2 stops
ORD11:30 amChicago O'Hare Intl
$947
Find similar

United Airlines flights from Illinois to Singapore

Our best United Airlines deals on Illinois to Singapore flight tickets
United Airlines
Nov 13
STL10:00 amLambert-St Louis
32h 00m
2 stops
SIN8:00 amSingapore Changi
Nov 26
SIN10:10 amSingapore Changi
26h 12m
2 stops
STL10:22 pmLambert-St Louis
$1,114
Find similar
United Airlines
Nov 11
ORD7:10 amChicago O'Hare Intl
23h 05m
1 stop
SIN8:15 pmSingapore Changi
Nov 13
SIN10:10 amSingapore Changi
23h 30m
1 stop
ORD7:40 pmChicago O'Hare Intl
$1,124
Find similar
United Airlines
Nov 11
ORD7:10 amChicago O'Hare Intl
23h 05m
1 stop
SIN8:15 pmSingapore Changi
Nov 13
SIN10:10 amSingapore Changi
23h 20m
2 stops
ORD7:30 pmChicago O'Hare Intl
$1,129
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Singapore 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 novembro 6, 2025.
Use the filters below to find and compare flights from Illinois to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

dom 11/30

1:30 pm-6:55 pm

1 stop39h 25m

Singapore Changi

qua 12/10

11:00 pm-11:30 am

2 stops50h 30m

$933

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

dom 1/18

2:35 pm-11:55 am

1 stop31h 20m

Singapore Changi

seg 2/2

7:40 am-12:55 pm

1 stop19h 15m

$937

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

dom 1/18

2:35 pm-5:40 am

1 stop25h 05m

Singapore Changi

ter 1/27

1:25 am-12:55 pm

1 stop25h 30m

$938

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

dom 1/11

1:10 pm-9:35 am

1 stop30h 25m

Singapore Changi

dom 3/1

7:25 pm-7:35 am

1 stop26h 10m

$944

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

seg 1/12

8:20 pm-5:35 pm

1 stop31h 15m

Singapore Changi

sáb 3/7

5:15 am-6:25 pm

1 stop27h 10m

$948

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

sex 1/16

5:40 pm-6:35 am

1 stop22h 55m

Singapore Changi

sex 1/23

2:20 am-7:35 am

1 stop19h 15m

$949

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

seg 12/1

11:50 am-8:45 am

1 stop30h 55m

Singapore Changi

seg 12/8

11:25 pm-10:05 am

1 stop24h 40m

$952

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

sáb 4/4

3:45 pm-7:05 am

2 stops50h 20m

Singapore Changi

sáb 4/11

9:10 am-12:53 pm

1 stop40h 43m

$957

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

sáb 4/18

5:50 pm-7:05 am

2 stops48h 15m

Singapore Changi

seg 4/27

11:55 pm-7:50 pm

2 stops32h 55m

$969

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

sáb 3/7

1:10 pm-9:35 am

1 stop30h 25m

Singapore Changi

sáb 3/21

7:25 pm-8:35 am

1 stop26h 10m

$988

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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 $806. 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 $841.

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 $1,127 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 $1,027 on momondo.

Can stopping save me money on Illinois to Singapore flights?

You could potentially save up to 55% 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

Direct flights

None
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?

  • 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 IndiaPriceFrom $675Free CancellationRating
5.5
2,941 reviews
Search Air India flights
Cathay PacificPriceFrom $701Free CancellationRating
7.6
1,055 reviews
Search Cathay Pacific flights
United AirlinesPriceFrom $709Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $744Free CancellationRating
7.3
4,031 reviews
Search Turkish Airlines flights
Japan AirlinesPriceFrom $791Free CancellationRating
8.3
1,604 reviews
Search Japan Airlines flights
Qatar AirwaysPriceFrom $850Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
Air CanadaPriceFrom $884Free CancellationRating
7.1
10,415 reviews
Search Air Canada flights
Etihad AirwaysPriceFrom $909Free CancellationRating
7.4
1,285 reviews
Search Etihad Airways flights
Korean AirPriceFrom $940Free CancellationRating
8.4
1,160 reviews
Search Korean Air flights
ANAPriceFrom $1,024Free CancellationRating
8.4
1,003 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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1 adult
sáb 12/6
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