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Cheap flights to Illinois from £42

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/4. 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.
WAS — ORD
24 Mar — 31 Mar1
1 adult
Sun 24/3
Sun 31/3

Find deals on flights to Illinois by searching across hundreds of travel sites at once.

 
Cheapflights users frequently choose these airlines when searching for flights to Illinois, based on our search results.
Cheapflights users frequently choose these airlines when searching for flights to Illinois, based on our search results.
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Flights to Illinois in 2024

Find the latest flights to Illinois in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 905,048 searches and data was last updated on 19 March 2024.

Popular in

July

Cheapest in

February

Average price

£451

Return from

£333

One-way from

£182
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in March 2024
From London to Chicago
One-way flight from London to Illinois

Find flights to Illinois

Browse one-way and return flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 19 March 2024
Explore Illinois

Cheap flights to Illinois in March & April 2024

Search the best deals to popular Illinois cities recently found by Cheapflights users
The deals listed below are some of the cheapest flights available to Illinois in March and April 2024. Prices refresh often so be sure to come back soon for more deals.
Cheap flights to Chicago, Illinois
Wed 10/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 13/416:45ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£55
Tue 16/420:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Tue 23/410:38ORD - LGA
1 stop7h 30mSpirit Airlines
Deal found 17/3£57
Sat 6/408:30LGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 30/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£69
Tue 16/409:55LGA - ORD
1 stop11h 14mSpirit Airlines
Tue 23/410:38ORD - LGA
1 stop7h 30mSpirit Airlines
Deal found 17/3£73
Wed 10/415:21LGA - ORD
1 stop9h 10mSpirit Airlines
Sat 13/416:45ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£75
Wed 17/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sun 21/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 18/3£78
Wed 17/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sun 21/422:00ORD - LGA
1 stop9h 02mSpirit Airlines
Deal found 18/3£82
Tue 16/406:00LGA - ORD
2 stops19h 56mFrontier
Tue 23/405:30ORD - LGA
1 stop16h 40mFrontier
Deal found 17/3£84
Sat 6/408:30LGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 30/422:00ORD - LGA
1 stop9h 02mSpirit Airlines
Deal found 18/3£86

Illinois 2024 flight deals

Explore flight deals for Illinois in 2024, offering the best prices and options to suit your preferences. In the last 7 days, Cheapflights users made a total of 905,048 searches and data were last updated on 19 March 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. Check back regularly for other flight deals.
Tue 16/420:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Tue 23/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£42
Tue 14/508:35LGA - ORD
Nonstop2h 39mSpirit Airlines
Tue 14/511:14ORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 18/3£48
Wed 10/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 13/416:45ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£55
Tue 7/520:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Wed 8/517:19ORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 16/3£56
Tue 16/420:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Tue 23/410:38ORD - LGA
1 stop7h 30mSpirit Airlines
Deal found 17/3£57
Sat 6/408:30LGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 30/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£69
Mon 13/508:35LGA - ORD
Nonstop2h 39mSpirit Airlines
Mon 13/511:14ORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 18/3£70
Tue 16/409:55LGA - ORD
1 stop11h 14mSpirit Airlines
Tue 23/410:38ORD - LGA
1 stop7h 30mSpirit Airlines
Deal found 17/3£73
Wed 10/415:21LGA - ORD
1 stop9h 10mSpirit Airlines
Sat 13/416:45ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£75

Flights to Illinois departing soon

Discover available last-minute flight options to Illinois, providing immediate availability and potentially lower prices. In the last 7 days, Cheapflights users made a total of 905,048 searches and data was last updated on 19 March 2024.
Have a look at some of the best last-minute flights available departing to Illinois. Make sure to double check the price, time, and destination to confirm all are correct.
Wed 27/306:38BOS - ORD
Nonstop3h 00mJetBlue
Tue 9/410:55ORD - BOS
Nonstop2h 29mJetBlue
Deal found 17/3£147

One-way flights to Illinois

Explore one-way flight options to Illinois for greater flexibility in your travel plans. Find up-to-date pricing and availability for one-way flights. In the last 7 days, Cheapflights users made a total of 905,048 searches and data was last updated on 19 March 2024.
Take a look at some of the one-way flights departing to Illinois in the near future. Users can also find round-trip Illinois flights by using the search form above.
Wed 8/508:00JFK - ORD
Nonstop2h 56mJetBlue
Deal found 18/3£50

Direct flights to Illinois

Tue 14/508:35LGA - ORD
Nonstop2h 39mSpirit Airlines
Tue 14/511:14ORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 18/3£48
Wed 10/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 13/416:45ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£55
Tue 7/520:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Wed 8/517:19ORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 16/3£56
Sat 6/408:30LGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 30/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£69
Mon 13/508:35LGA - ORD
Nonstop2h 39mSpirit Airlines
Mon 13/511:14ORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 18/3£70
Wed 17/408:37LGA - ORD
Nonstop2h 37mSpirit Airlines
Sun 21/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 18/3£78
Tue 23/420:03LGA - ORD
Nonstop2h 40mSpirit Airlines
Thu 25/411:11ORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 17/3£93
Wed 8/508:00JFK - ORD
Nonstop2h 56mJetBlue
Sat 11/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 18/3£100
Tue 18/617:30LGA - ORD
Nonstop2h 45mDelta
Tue 23/707:00ORD - LGA
Nonstop2h 18mDelta
Deal found 18/3£100

Find flights to Illinois within your budget

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 905,048 searches and data was last updated on 19 March 2024.

Fly from

Any airport

Budget

£48 - £173

Route

Depart

Return

Price

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Tue 14/5

Nonstop2h 39m

Chicago O'Hare Intl

Tue 14/5

Nonstop2h 11m

£48

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Sat 6/4

Nonstop2h 46m

Chicago O'Hare Intl

Tue 30/4

Nonstop2h 15m

£69

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Mon 13/5

Nonstop2h 39m

Chicago O'Hare Intl

Mon 13/5

Nonstop2h 11m

£70

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Wed 8/5

Nonstop2h 56m

Chicago O'Hare Intl

Sat 11/5

Nonstop2h 28m

£100

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Tue 11/6

Nonstop2h 45m

Chicago O'Hare Intl

Tue 25/6

Nonstop2h 16m

£100

Boston Logan IntlChicago O'Hare Intl

BOS - ORD

BOSORD

Boston Logan Intl

Wed 3/4

Nonstop2h 59m

Chicago O'Hare Intl

Sat 6/4

Nonstop2h 17m

£140

JacksonvilleChicago O'Hare Intl

JAX - ORD

JAXORD

Jacksonville

Sat 20/4

Nonstop2h 43m

Chicago O'Hare Intl

Wed 24/4

Nonstop2h 27m

£164

San FranciscoChicago O'Hare Intl

SFO - ORD

SFOORD

San Francisco

Wed 10/4

Nonstop4h 21m

Chicago O'Hare Intl

Sat 20/4

Nonstop4h 46m

£172

Los AngelesChicago O'Hare Intl

LAX - ORD

LAXORD

Los Angeles

Fri 19/4

1 stop24h 43m

Chicago O'Hare Intl

Fri 26/4

1 stop23h 03m

£173

Flights are sorted by cheapest first

Deals found on 18/3

Average price of flights to Illinois by month

Plan your trip to Illinois by taking into account the cheapest months to travel. The average price of a one-way flight to Illinois is currently £50 while a return flight costs £115. Price data was last updated on 10 March 2024.

Currently, January is the cheapest month in which you can book a flight to Illinois (average of £601). Flying to Illinois in July will prove the most costly (average of £782). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

January

£472

February

£486

March

£478

April

£484

May

£484

June

£594

July

£614

August

£562

September

£527

October

£508

November

£487

December

£496

Temperature and rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

-5 - 23 °C

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).

When is the best time to book a flight to Illinois?

Use this chart to determine the optimal time to book a return flight to Illinois. Price data was last updated on 28 January 2024.
The best time to book flights to Illinois is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

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 19 March 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about Aer Lingus, American Airlines and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very Good
11,551 reviews
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
2,183 reviews
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,720 reviews
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,376 reviews
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.7
Good
4,921 reviews
8.1
Very Good
11,551 reviews

Boarding

8.2

Crew

8.6

Food

7.5

Overall

8.1

Comfort

7.9

Entertainment

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

Sitting along the banks of the Mississippi River and Lake Michigan, Illinois’s accessible location has for centuries made it an important hub. Historically emigrants from Mexico, Ireland and Poland would make the long journey over in search of work and a new home. Abraham Lincoln was among those who called Illinois home and the state honoured him by naming the small city of Lincoln after him – beforehe became president.

Most travellers booking flights to Illinois would probably pick Chicago as their city of choice for its renowned restaurant scene and shopping but there’s so much more to see in including 6,900 kilometres of shoreline and more than 50 state parks, making it one of the most scenic states in the US.

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.
  • When is the best time to fly to Illinois?

    Peak Season: Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight. Off Season: The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

Browse thousands of different options on Cheapflights for your next trip

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Search flights to Illinois by cabin class

Find flights to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Classfrom £2,378/person
Business Classfrom £1,408/person
Prem Econ Classfrom £750/person
Economy classfrom £420/person

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Illinois?

Deals for Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Illinois?

Millions of users choose and trust Cheapflights to book the best flight deals to Illinois for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Illinois with no change fees?

Certainly. Search results for flights to Illinois shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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