$499 Find Cheap Flights from Singapore to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Illinois departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Singapore to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Singapore to Illinois 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.

Recent round-trip flight deals from Singapore to Illinois

Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
8:15 am - 1:45 pm
SIN
-
ORD
19h 30m1 stop
Multiple Airlines Logo
12:05 pm - 1:00 pm
ORD
-
SIN
34h 55m2 stops
$876Multiple Airlines
Thu, Jan 22 - Wed, Feb 4
Air Canada Logo
8:50 am - 2:41 pm
SIN
-
ORD
19h 51m1 stop
Air Canada Logo
3:35 pm - 7:00 am
ORD
-
SIN
25h 25m1 stop
$896Air Canada
Thu, Feb 19 - Thu, Feb 26
Air Canada Logo
8:50 am - 2:41 pm
SIN
-
ORD
19h 51m1 stop
Air Canada Logo
3:35 pm - 7:00 am
ORD
-
SIN
25h 25m1 stop
$900Air Canada
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
2:25 pm - 12:01 pm
SIN
-
ORD
35h 36m2 stops
Multiple Airlines Logo
1:00 pm - 1:05 pm
ORD
-
SIN
34h 05m2 stops
$901Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
2:25 pm - 4:33 pm
SIN
-
ORD
40h 08m2 stops
Multiple Airlines Logo
3:54 pm - 1:05 pm
ORD
-
SIN
31h 11m2 stops
$902Multiple Airlines
Tue, Feb 17 - Wed, Feb 18
Korean Air Logo
10:40 am - 9:30 pm
SIN
-
ORD
24h 50m2 stops
Korean Air Logo
11:25 am - 12:10 am
ORD
-
SIN
22h 45m1 stop
$918Korean Air
Sat, Feb 21 - Sat, Feb 28
Delta Logo
10:30 pm - 10:31 pm
SIN
-
MDW
38h 01m2 stops
Delta Logo
5:00 pm - 12:10 am
MDW
-
SIN
41h 10m2 stops
$1,103Delta
Fri, Feb 20 - Sat, Feb 28
Japan Airlines Logo
2:20 am - 2:17 pm
SIN
-
PIA
25h 57m2 stops
Japan Airlines Logo
2:50 pm - 12:50 am
PIA
-
SIN
44h 00m2 stops
$1,124Japan Airlines
Tue, Feb 10 - Fri, Feb 20
Delta Logo
10:40 am - 9:08 am
SIN
-
MDW
36h 28m2 stops
Delta Logo
6:00 am - 5:00 am
MDW
-
SIN
33h 00m2 stops
$1,377Delta
Sat, Feb 21 - Sat, Feb 28
United Airlines Logo
10:20 pm - 10:11 am
SIN
-
MLI
25h 51m2 stops
United Airlines Logo
8:49 am - 8:00 am
MLI
-
SIN
33h 11m2 stops
$1,774United Airlines
Booking Insights

KAYAK's insights & trends for Singapore to Illinois flights

Get data-powered insights and trends into flights from Singapore to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Singapore to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Singapore to Illinois departing in February.

What is the cheapest month to fly from Singapore to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Singapore to Illinois is September, when tickets cost $847 (return) on average. On the other hand, the most expensive months are January and June, when the average cost of round-trip tickets is $1,242 and $1,199 respectively.

Good to know

Low seasonJanuary
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 13% increase in price.

FAQs - booking Illinois flights

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

    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 Singapore to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Singapore to 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 Singapore to Illinois?

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

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

    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 from Singapore to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Singapore to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1124 reviews
7.6Comfort
8.1Crew
7.9Boarding
7.3Food
7.7Entertainment
Airline reviews

The bed was alright in business class. Food variety and quality were not up to the mark compared to the business class airfare.

6.0 GoodAnonymous, Jan 2026
HKG - JFK
Read more Cathay Pacific reviews

The bed was alright in business class. Food variety and quality were not up to the mark compared to the business class airfare.

Food , drink experience were great with Cathay. Crew service was excellent. Clean toilet and full snack bars always, pilot took of 26minutes later when boarding at Hong Kong with extra US customs check at gate 9 for US flight, but he managed to arrive only 2 minutes later from flight tracker. Smooth flight .

I wish there were more bathrooms available on these larger carriers.

one hour transit not good. cathay pacific is not helpful at all

My flight was suppose to be at 7:45pm to fly but it didnt fly out until 8:55 to dallas so then all of my other flights was late and delay ihad to wait at the airport for extra 14 hours to be able to get on a different plane

Super delayed. Unnecessary. Need more competent people doing logistics to keep things moving on time. Totally unacceptable.

Overall, not good. Super late boarding in Hong Kong because some last minute issue with a plane. The boarding process is chaotic. Kathy Pacific should seek to do better with punctual departure time. Caused a lot of trouble with missed connecting flight.

Not much of anything could have been done better unless I had a first class ticket. I was literally 15 hours with an airline in the economy class. Very professional friendly and attentive crew. Good airline food, clean cabin, seating area and bathrooms. I've been 4 times back-and-forth with Cathay Pacific, and I would not choose another airline for this trip. Five out of five stars.

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

First time tying out business class with this airline, hat a disappointment, never returning. We didn’t get the meal as requested from Singapore to HKG flight. While meals served connecting flight, crew takes meal order based off passenger membership status by giving the. Priority selection of meals. It was a battle, plain disappointment, not worth the hype, price, class as categorized/ advertised

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

An international flight on an apron is pretty unusual in my 40 years of traveling. Departure delay. Luggage despite over an hour connection did not make it to the flight. Actually still in Germany. My luggage was not moved until I reached my final destination despite knowing it to be left in Germany upon my arrival in Chicago. The service left me a little off, both going and returning from Europe. Light on in the cabin even during a night flight and lots of traffic no matter what. Maybe passengers want more service? As a frequent traveler i just want to be able to sleep, the food will be better at the destination anyway. So since the cabin crew woke me up I asked for a cocktail, I did not get the best response although sitting in row 20 premium economy. I usually fly premium economy or business and my 2 flight to Europe in 2025 with United both had luggage delays and other minor issues. American flights to Australia, Canada and Europe went smoothly and Premium plus feels very much like business light. Is United Club becoming a waste and Silver/Gold levels another waste??

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Everything you need to know for your flight from Singapore to Illinois

Information on your arrival and departure airports