S$ 621+ Cheap flights to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29-5. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Illinois in 2025
Find the latest flights to Illinois in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 12 April 2025.
Return from | S$ 1,163 |
---|---|
One-way from | S$ 621 |
Popular in | August |
Cheapest in | February |
Average price | S$ 1,356 |
Find flight deals to Illinois
Cheapest flights to IllinoisExplore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 12 April 2025.
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 12 April 2025.
Cheapflights Fare Finder
Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 12 April 2025.
Use the filters below to find and compare flights to Illinois that are best for you.
Fly from
Route
Depart
Return
Price
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Tue 24-6
09:10-14:49
1 stop42h 39m
Chicago O'Hare Intl
Wed 23-7
20:03-07:05
2 stops46h 02m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Mon 12-5
09:00-19:39
1 stop23h 39m
Chicago O'Hare Intl
Sat 17-5
20:30-18:25
1 stop32h 55m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Tue 24-6
20:30-07:25
1 stop23h 55m
Chicago O'Hare Intl
Wed 23-7
12:00-07:30
1 stop30h 30m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Mon 12-5
15:10-06:05
2 stops27h 55m
Chicago O'Hare Intl
Sat 17-5
19:59-12:00
2 stops27h 01m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Mon 23-6
01:50-14:25
1 stop25h 35m
Chicago O'Hare Intl
Wed 23-7
16:00-05:30
1 stop24h 30m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Fri 6-6
08:05-16:00
1 stop20h 55m
Chicago O'Hare Intl
Tue 10-6
01:30-17:30
1 stop27h 00m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Sun 25-5
03:10-15:05
1 stop24h 55m
Chicago O'Hare Intl
Mon 2-6
16:44-15:45
2 stops34h 01m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Mon 26-5
23:30-12:50
1 stop26h 20m
Chicago O'Hare Intl
Mon 2-6
20:15-17:05
2 stops31h 50m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Tue 24-6
15:10-05:45
2 stops27h 35m
Chicago O'Hare Intl
Tue 22-7
00:30-13:50
1 stop24h 20m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Fri 6-6
08:05-19:56
2 stops24h 51m
Chicago O'Hare Intl
Tue 10-6
01:30-17:30
1 stop27h 00m
Best time to book a flight to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Illinois
How long is the flight to Illinois?
On average, a flight from Singapore to Illinois takes 24 hours 5 minutes. Flights to Illinois from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.
What are the most popular airlines that fly to Illinois?
The most popular airlines flying from Singapore to Illinois are EVA Air, United Airlines and Cathay Pacific.
What are the cheapest airlines that fly to Illinois?
The cheapest airlines flying from Singapore to Illinois are United Airlines, Cathay Pacific and Korean Air.
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
What are the most popular places to fly to in Illinois?
Destination popularity is based on the amount of flight searches to Illinois in the last few years. This data was updated on 12 April 2025.
The most popular places in Illinois to fly to are Chicago and Champaign.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 12 April 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
Crew
Comfort
Entertainment
Boarding
Food
Overall
Reviews
Anonymous,Feb 2025
SFO - TPE
FAQs about flying to Illinois
Illinois climate
Illinois’s winters are very cold and long with snow and icy winds from late November through to April. Summers, especially July and August, the weather tends to be hot and humid. The best times to visit is when the weather is perfect, in spring and autumn; tornado season can occur anytime between the months of March and May. Chicago’s summers are humid with highs of 30 degrees (Celsius) or more and its winters are bitterly cold.
Getting around Illinois
Public transportation is reliable and taxis are easy to find. Driving is not recommended because of heavy traffic and parking is almost impossible to find. The El, a system operated by The Chicago Transit Authority consists of elevated trains running 24 hours a day. During the summer rush hour a River Bus is available.
What is good to know if travelling to Illinois?- Chicago has a wealth of things to see and do. The best view of the city can be found at 1,450 feet from the top of North America’s tallest building – the Sears Tower. Head to the 103rd floor to the Skydeck where you can see the entire city laid out. The Hancock Building is also well worth a visit and offers stunning city views from its observation deck or cocktail bar.
- Don’t miss a trip to the Anderson Japanese Gardens in Rockford. Set on twelve acres the gardens are adorned with Japanese maples, magnolias, and rhododendrons and have several ponds and waterfalls with Japanese bronze structures surrounding them. There’s also an authentic tea house and contemporary “Garden of Reflection”.
- Visit the preserved Frank Lloyd Wright Museum on Chicago Avenue in Oak Park where the famed architect spent 20 years of his career and designed 130 of his masterpieces. Wright lived here until 1909.
- One of the most visited attractions in Chicago is the Art Institute of Chicago. Art lovers – well any visitor – shouldn’t miss a trip to the museum, it’s remarkable. The gargantuan building houses more than 250,000 works of art from all over the world including ancient Egyptian, Japanese, Korean, Greek and Roman relics. One of its highlights is the anthology of Impressionist art which has an impressive collection by Monet, Pablo Picasso and Henri Matisse to name a few.
- Anyone interested in the lives of the Amish people should head to central Illinois where a welcoming group of Amish villages are set up. Take a tour of the community in the Illinois Amish Interpretative Centre in Arcola, visit a working farm and watch how supper is prepared and enjoyed in a family home.
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How does Cheapflights help users find flights to Illinois?
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Why should you use Cheapflights to find cheap flight tickets to Illinois?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Illinois.
Can Cheapflights find flights to Illinois with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights to Illinois flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights to Illinois become cheaper?
Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Illinois today and book when you’re ready!