S$ 749 Find Cheap Flights 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 14-9. 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 for flights to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Flight Deals

Book Cheap Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 return flight deals to Illinois

Wed, 16 Sep - Tue, 29 Sep
ANA Logo
00:50 - 14:55
SIN
-
ORD
27h 05m
1 stop
ANA Logo
17:45 - 06:40
ORD
-
SIN
23h 55m
1 stop
S$ 1,017ANA
Tue, 5 May - Sun, 10 May
United Airlines Logo
20:35 - 11:55
SIN
-
ORD
28h 20m
1 stop
United Airlines Logo
10:30 - 18:35
ORD
-
SIN
43h 05m
1 stop
S$ 1,021United Airlines
Sat, 19 Sep - Mon, 5 Oct
ANA Logo
00:50 - 15:05
SIN
-
ORD
27h 15m
1 stop
ANA Logo
12:00 - 06:40
ORD
-
SIN
29h 40m
1 stop
S$ 1,084ANA
Sun, 20 Sep - Tue, 6 Oct
ANA Logo
00:50 - 15:05
SIN
-
ORD
27h 15m
1 stop
ANA Logo
12:00 - 06:40
ORD
-
SIN
29h 40m
1 stop
S$ 1,086ANA
Mon, 21 Sep - Tue, 6 Oct
ANA Logo
06:15 - 20:41
SIN
-
ORD
27h 26m
2 stops
ANA Logo
12:00 - 06:40
ORD
-
SIN
29h 40m
1 stop
S$ 1,093ANA
Mon, 14 Sep - Sun, 27 Sep
Korean Air Logo
01:25 - 09:30
SIN
-
ORD
21h 05m
1 stop
Korean Air Logo
12:10 - 05:00
ORD
-
SIN
27h 50m
1 stop
S$ 1,221Korean Air
Wed, 22 Apr - Fri, 24 Apr
Japan Airlines Logo
21:50 - 23:59
SIN
-
ORD
39h 09m
2 stops
Japan Airlines Logo
10:15 - 00:20
ORD
-
SIN
25h 05m
1 stop
S$ 1,328Japan Airlines
Tue, 5 May - Sun, 10 May
United Airlines Logo
20:35 - 06:20
SIN
-
ORD
22h 45m
1 stop
United Airlines Logo
22:02 - 18:35
ORD
-
SIN
31h 33m
2 stops
S$ 1,365United Airlines
Sun, 7 Jun - Sun, 9 Aug
Delta Logo
22:00 - 12:00
SIN
-
MDW
27h 00m
2 stops
Delta Logo
06:05 - 05:00
MDW
-
SIN
33h 55m
2 stops
S$ 1,533Delta
Sun, 7 Jun - Sun, 9 Aug
Delta Logo
22:00 - 16:16
SIN
-
MDW
31h 16m
2 stops
Delta Logo
06:05 - 05:00
MDW
-
SIN
33h 55m
2 stops
S$ 1,551Delta
Booking Insights

KAYAK's insights & trends for flights to Illinois

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

How many airports are there in Illinois?

There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 91% of all flights arriving there.

How long is the flight to Illinois?

An average direct flight from Singapore to Illinois takes 25h 15m, covering a distance of 24223 km. The shortest route is Singapore (SIN) to Chicago O'Hare Intl Airport (ORD) with an average flight time of 23h 30m.

What is the most popular destination in Illinois?

Based on KAYAK flight searches, the most popular destination is Chicago (100% of total searches to Illinois).

Good to know

Low seasonFebruary
Cheapest flightS$ 749
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Singapore to Chicago O'Hare Airport

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 travellers 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 return 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.

Top tips for finding cheap flights to Illinois

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.

Reviews of the top 5 airlines flying to Illinois

 
See real verified KAYAK customer reviews for airlines flying to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Illinois. 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.
8.5
EVA AirOverall score based on 1401 reviews
8.7Crew
8.4Boarding
8.3Comfort
8.0Entertainment
8.1Food
Airline reviews

We travelled with a toddler and was allowed extra time to board first which was very helpful!

10.0 ExcellentKimsuor, Apr 2026
SGN - TPE
Read more EVA Air reviews

We travelled with a toddler and was allowed extra time to board first which was very helpful!

My flight was amazing smooth and the attendants were so friendly and nice

Organized boarding process, superb food, lovely crew, even arrived early!

Crew are excellent. Food was good generally. Seats are small and there isn’t much leg room. Overhead bins are very small.

Amazing customer service. BUT!! It would be nice if the flight attendants SMILE a little more, I know they are doing their job, but it is importantly to smile back and be warm to passengers. Nobody is trying to hit on them, it’s just being polite. So, please Taiwanese flight attendants: SMILE MORE WHEN YOU INTERACT WITH PAYING CUSTOMERS

What could have been better, was we were delayed from takeoff for two hours. Initially we were informed that we were delayed for refueling. Then we taxied out on the tarmac, then just waited there for a long time, with no explanation of the delay. Were we just waiting on takeoff clearance or was there some other reason for the delay? The pilot, nor none of the crew informed us passengers. That was not good customer service. That needs to be improved, whenever a delay, inform the passengers for the reason.

More seat space More bathrooms Charging outlets Plane was old

This flight was long and I am so thankful I had a seat in the back of the plane. As I usually must get up and stretch every hour . The crew were probably the most friendly I have flown with. Thanks and I will book again with Eva air. Food was ok too.

Very nice, I feel I got good value for the price.

It was a pleasure to fly with EVA airlines from Taipei to San Francisco.

It was good. The crew was efficient, food was good

They did not get back tickets in time about flight varification so i had to purchase another one way ticket to get home soxas rocnot Risk being unable to return home.

Food looked great but did not taste all that good.

Everything about the flight was good or very good. The only bummer was that there was a 2 hour delay and that's not the fault of the airlines but it still takes away from the whole experience. The most amazing thing was that our bags got to baggage claim in record time! That was excellent!

Flight was late boarding. United crew were not friendly and cordial unlike the ANA crew.

Vegetarian options were not that great. However, the crew and service was awesome

The food was not great and the seats you need a little bit more space to put your things down around you: the blankets and toiletry bag were good. Flight was on time and bags etc no issues

Entertainment was good , comfort on airplane easy hoarding food and drinks was good and a friendly and good service of flight staff

The plane was very clean and the crew was very nice.

The lounge in Japan was busy and smaller. Have great choice of ramen.

Horrible like always, flight was supposed to be at 11:40am, we ended up getting a different airplane at 3:25pm.

I have been flying with JAL a few times, crews service, food, overall comfort even with economy, I would rate it the top three airlines. None of any American carriers can provide such excellent service.

service was excellent. crew very polite, courteous, and good service especially to passengers like me who is a wheelchair passenger

First of all it’s an American Airline flight not JAL as advertised. Code share is deceiving. Seats are uncomfortable. Stewards in our section were not friendly, felt rude at times.

Lovely flight attendants comfort in Economy Premium. Very attentive and kind I would choose JAL again for sure!

I enjoy flying American airlines. I tried to book American airline when I’m flying most places.

After boarding it was fine. Premium economy was not available for one long leg. Economy was very uncomfortable. They need to fix these issues. Planes are old. It gets more and more dangerous due to fatigue of plane parts. They need to upgrade before something goes wrong with the plane. Hazardous. Hari S Doss

Nice amount of space in economy seat. Very attentive attendants that allowed a seat change that helped several people. Morning meal could have been better.

No food at all so it was a bit of a culture shock for international travellers with connecting domestic flights.

The foods were lacking in both quality and quantity. I was starving.

I liked the service. The touch screen needs improvement as well as movie choices.

My only suggestion is a way to not be woken up for food. … like maybe something you can place on you if you’d prefer to miss food than be woken up

Good service and food. However, we paid over $400 for aisle seats for my disabled husband and me, and we were given window and middle seats. This was dangerous for our health condition on such a long flight. We needed to stand up and walk around frequently, but we were stuck in our seats. Please give us a refund of our seat payment since you chose not to honor our request.

After each meal was served I didn't see any flight attendant offer coffee or tea to the passengers after the initial drinks were offered. Other flights I had been one it was standard procedure to offer hot drinks after the meal service.

It was great. It was my first time with Cathay Pacific and I really recommend.

Selected ovo lacto meal because I’m ok with milk products but not any meat. It was terrible. We had the same selection back in October when we had traveled and it was pretty good at that time. It was gross this time.

I was mid plane and they were already out of the main beef entree....ugh!

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

Vegetarian options should be included with every meal. Even just simple steamed vegetables and whole grains would capture a wide audience.

Cramped, hot and the plane was grubby. Also the plane was an hour late and it took an hour to get my luggage once I got to LAX.

The crew was generally professional. Though one of the crew members seemed to be easily annoyed, the others were fine and helpful. The green olives and almonds snack was really good. A great idea, and nice balance of tastes.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Food and drink service was very low quality. The flight attendants in business class must have been short some staff. Service was sluggish and not much English was spoken

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.