How does KAYAK find such low prices on flights from Illinois to Singapore?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Singapore. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Singapore?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Singapore?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Singapore with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Singapore?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Singapore from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

S$ 442 CHEAP FLIGHTS from Illinois to Singapore

KAYAK searches hundreds of travel sites at once for deals on flights to Singapore

...and more

Travellers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest return fare

S$ 1,316

Typical prices: S$ 1,457-S$ 1,910

Cathay Pacific

Tue 20-1Tue 27-1

STL - SIN • 2 stops

Cheapest one-way flight

S$ 442

Typical prices: S$ 704-S$ 869

Multiple Airlines

Wed 21-1

ORD - SIN • 2 stops

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Singapore!

Flight Deals

Cheap Flights from Illinois to Singapore

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Illinois to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent return flight deals from Illinois to Singapore

Tue, 20 Jan - Tue, 27 Jan

11:05 - 05:40STL-SIN

28h 35m2 stops

12:55 - 18:14SIN-STL

43h 19m2 stops

S$ 1,316Cathay Pacific

Find Deal

Tue, 20 Jan - Mon, 26 Jan

11:05 - 05:40STL-SIN

28h 35m2 stops

01:25 - 18:16SIN-STL

30h 51m2 stops

S$ 1,318Cathay Pacific

Find Deal

Mon, 12 Jan - Mon, 19 Jan

15:11 - 08:00STL-SIN

26h 49m2 stops

22:20 - 09:22SIN-STL

25h 02m2 stops

S$ 1,329United Airlines

Find Deal

Mon, 12 Jan - Mon, 19 Jan

06:45 - 08:00STL-SIN

35h 15m1 stop

22:20 - 09:22SIN-STL

25h 02m2 stops

S$ 1,340United Airlines

Find Deal

Thu, 29 Jan - Mon, 2 Feb

07:04 - 05:40STL-SIN

32h 36m2 stops

12:55 - 18:16SIN-STL

43h 21m2 stops

S$ 1,358Cathay Pacific

Find Deal

Mon, 12 Jan - Sun, 18 Jan

11:05 - 06:35STL-SIN

29h 30m2 stops

02:20 - 14:47SIN-STL

26h 27m2 stops

S$ 1,373American Airlines

Find Deal

Fri, 16 Jan - Sat, 31 Jan

17:00 - 08:00STL-SIN

25h 00m1 stop

22:20 - 05:11SIN-STL

20h 51m1 stop

S$ 1,432United Airlines

Find Deal

Fri, 16 Jan - Sat, 31 Jan

11:05 - 11:55STL-SIN

34h 50m2 stops

14:05 - 23:59SIN-STL

23h 54m2 stops

S$ 1,437Multiple Airlines

Find Deal

Thu, 8 Jan - Sat, 17 Jan

07:10 - 06:55ORD-SIN

33h 45m2 stops

02:20 - 07:35SIN-ORD

19h 15m1 stop

S$ 1,603Multiple Airlines

Find Deal

Thu, 19 Mar - Tue, 24 Mar

09:37 - 05:00ORD-SIN

30h 23m2 stops

01:35 - 09:40SIN-ORD

21h 05m1 stop

S$ 1,610Korean Air

Find Deal

Useful Info

Low season	February
High season	December
Cheapest flight	S$ 442

Best time to beat the crowds (30% less expensive on average)

Most popular time to fly (63% more expensive on average)

Flight from Chicago O'Hare Airport to Singapore

How does KAYAK find such low prices on flights from Illinois to Singapore?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Singapore.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Singapore?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Singapore?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Singapore with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Singapore?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Singapore from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Direct departures

Illinois to Singapore Changi

Monday

ANA, Aegean Airlines, Air Canada, +106 more

ANA, Aegean Airlines, +107 more

105

106

Tuesday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Wednesday

ANA, Aegean Airlines, Air Canada, +104 more

ANA, Aegean Airlines, +105 more

103

104

Thursday

ANA, Aegean Airlines, Air Canada, +104 more

ANA, Aegean Airlines, +105 more

103

104

Friday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Saturday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Sunday

ANA, Aegean Airlines, Air Canada, +102 more

ANA, Aegean Airlines, +103 more

101

102

See more direct flights

Direct returns

Singapore Changi to Illinois

Monday

ANA, Aegean Airlines, Air Canada, +106 more

ANA, Aegean Airlines, +107 more

105

106

Tuesday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Wednesday

ANA, Aegean Airlines, Air Canada, +104 more

ANA, Aegean Airlines, +105 more

103

104

Thursday

ANA, Aegean Airlines, Air Canada, +104 more

ANA, Aegean Airlines, +105 more

103

104

Friday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Saturday

ANA, Aegean Airlines, Air Canada, +105 more

ANA, Aegean Airlines, +106 more

104

105

Sunday

ANA, Aegean Airlines, Air Canada, +102 more

ANA, Aegean Airlines, +103 more

101

102

See more direct flights

Everything you need to know for your flight to Singapore

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Singapore

Singapore (SIN)

S$ 442 Find Cheap Flights from Illinois to Singapore

KAYAK searches hundreds of travel sites at once for deals on flights to Singapore

Everything you should know

Cheap Flights from Illinois to Singapore

Recent return flight deals from Illinois to Singapore

Recent one-way flight deals from Illinois to Singapore

Recent last minute flight deals from Illinois to Singapore

Good to know

FAQs for booking flights from Illinois to Singapore

How does KAYAK find such low prices on flights from Illinois to Singapore?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Singapore.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Singapore?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Singapore?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Singapore with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Singapore?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Singapore from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Illinois to Singapore Changi?

Everything you need to know for your flight to Singapore

Information on the airport you'll fly into in Singapore

Cabin class types available on flights to Illinois

Complete your trip to Singapore with a hotel stay or car hire

Flights to other popular destinations

Flights from domestic origins to Singapore

Choose which airport to fly into in Singapore

Find deals for your return flight