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Cheap flights to Illinois from £42

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 14/5. 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.
CMH — ORD
21 Apr — 28 Apr1
1 adult
Sun 21/4
Sun 28/4

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 886,143 searches and data was last updated on 16 April 2024.

Popular in

July

Cheapest in

February

Average price

£477

Return from

£404

One-way from

£156
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in April 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 16 April 2024
Explore Illinois

Cheap flights to Illinois in April & May 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 April and May 2024. Prices refresh often so be sure to come back soon for more deals.
Cheap flights to Chicago, Illinois
Fri 3/522:46RDU - ORD
1 stop25h 57mFrontier
Tue 7/506:00ORD - RDU
1 stop7h 39mFrontier
Deal found 15/4£79
Tue 14/520:51IAH - ORD
Nonstop2h 38mSpirit Airlines
Wed 15/507:08ORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 14/4£100
Sat 11/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 14/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 15/4£102
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Sat 11/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 14/4£110
Tue 14/511:32IAH - ORD
1 stop10h 14mSpirit Airlines
Wed 15/514:56ORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 14/4£114
Wed 8/511:48BWI - ORD
1 stop6h 52mSpirit Airlines
Wed 8/518:40ORD - BWI
1 stop13h 02mSpirit Airlines
Deal found 14/4£114
Mon 6/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/510:45ORD - JFK
Nonstop2h 23mJetBlue
Deal found 15/4£118
Mon 6/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 15/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 15/4£119
Tue 14/520:51IAH - ORD
Nonstop2h 38mSpirit Airlines
Wed 15/520:09ORD - IAH
1 stop12h 41mSpirit Airlines
Deal found 13/4£121

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 886,143 searches and data were last updated on 16 April 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.
Fri 3/522:46RDU - ORD
1 stop25h 57mFrontier
Tue 7/505:30ORD - RDU
Nonstop1h 56mFrontier
Deal found 15/4£65
Fri 3/522:46RDU - ORD
1 stop25h 57mFrontier
Tue 7/506:00ORD - RDU
1 stop7h 39mFrontier
Deal found 15/4£79
Wed 21/821:19IAH - ORD
Nonstop2h 39mFrontier
Thu 22/819:59ORD - IAH
1 stop11h 37mFrontier
Deal found 15/4£91
Tue 20/807:14IAH - ORD
1 stop11h 20mFrontier
Sat 24/806:15ORD - IAH
Nonstop2h 46mFrontier
Deal found 15/4£91
Wed 21/821:19IAH - ORD
Nonstop2h 39mFrontier
Fri 23/819:59ORD - IAH
1 stop11h 35mFrontier
Deal found 15/4£94
Tue 14/520:51IAH - ORD
Nonstop2h 38mSpirit Airlines
Wed 15/507:08ORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 14/4£100
Sat 11/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 14/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 15/4£102
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Wed 8/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 15/4£102
Wed 21/821:19IAH - ORD
Nonstop2h 39mMultiple Airlines
Thu 22/812:10ORD - IAH
Nonstop2h 47mMultiple Airlines
Deal found 15/4£104

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 886,143 searches and data was last updated on 16 April 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.
Thu 25/408:10BOS - ORD
Nonstop2h 58mJetBlue
Wed 1/508:28ORD - BOS
Nonstop2h 29mJetBlue
Deal found 15/4£156

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 886,143 searches and data was last updated on 16 April 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.
Tue 14/510:12IAH - ORD
2 stops23h 43mSpirit Airlines
Deal found 14/4£42

Direct flights to Illinois

Tue 14/520:51IAH - ORD
Nonstop2h 38mSpirit Airlines
Wed 15/507:08ORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 14/4£100
Sat 11/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 14/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 15/4£102
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Wed 8/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 15/4£102
Tue 21/506:10BOS - ORD
Nonstop2h 54mJetBlue
Sat 25/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 14/4£106
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Sat 11/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 14/4£110
Mon 6/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/510:45ORD - JFK
Nonstop2h 23mJetBlue
Deal found 15/4£118
Mon 6/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 15/4£119
Tue 7/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/510:45ORD - JFK
Nonstop2h 23mJetBlue
Deal found 14/4£122
Wed 1/506:00BOS - ORD
Nonstop2h 53mJetBlue
Tue 7/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 15/4£123

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 886,143 searches and data was last updated on 16 April 2024.

Fly from

Any airport

Budget

£64 - £168

Route

Depart

Return

Price

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 21/8

Nonstop2h 39m

Chicago O'Hare Intl

Sat 24/8

Nonstop2h 46m

£64

Raleigh-DurhamChicago O'Hare Intl

RDU - ORD

RDUORD

Raleigh-Durham

Fri 3/5

1 stop25h 57m

Chicago O'Hare Intl

Tue 7/5

Nonstop1h 56m

£65

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 15/5

1 stop6h 52m

Chicago O'Hare Intl

Wed 15/5

1 stop13h 02m

£75

Raleigh-DurhamChicago O'Hare Intl

RDU - ORD

RDUORD

Raleigh-Durham

Fri 3/5

1 stop25h 57m

Chicago O'Hare Intl

Tue 7/5

1 stop7h 39m

£79

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sat 11/5

Nonstop2h 56m

Chicago O'Hare Intl

Tue 14/5

Nonstop2h 28m

£102

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 21/8

Nonstop2h 39m

Chicago O'Hare Intl

Thu 22/8

Nonstop2h 47m

£104

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Mon 1/7

Nonstop2h 44m

Chicago O'Hare Intl

Tue 2/7

Nonstop2h 14m

£127

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 9/5

Nonstop2h 35m

Chicago O'Hare Intl

Sat 11/5

Nonstop2h 57m

£159

Raleigh-DurhamChicago O'Hare Intl

RDU - ORD

RDUORD

Raleigh-Durham

Wed 3/7

Nonstop2h 21m

Chicago O'Hare Intl

Wed 10/7

Nonstop2h 07m

£168

Flights are sorted by cheapest first

Deals found on 15/4

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 £42 while a return flight costs £105. Price data was last updated on 7 April 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 £785). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

January

£482

February

£497

March

£488

April

£499

May

£506

June

£609

July

£630

August

£570

September

£538

October

£522

November

£500

December

£505

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 16 April 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about TAP AIR PORTUGAL, Scandinavian Airlines and Air Canada. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

8.1
Very Good
11,123 reviews
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.9
Good
1,647 reviews
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.8
Good
2,106 reviews
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.8
Good
1,379 reviews
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.7
Good
749 reviews
8.1
Very Good
11,123 reviews

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.5

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

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.

Related info for your journey

  • 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.

  • Can I find cheaper flights to Illinois if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Illinois?

    Based on reviews from Cheapflights users, Scandinavian Airlines is rated the highest out of the airlines that fly to Illinois.

  • What is the cheapest airport to fly to in Illinois?

    Chicago O'Hare Intl Airport is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl Airport typically cost £18, while return flights cost around £44.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around £261, however they can be found for as little as £55.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Edinburgh offers the quickest one-way flight (8 hours 25 minutes).

  • Which airport is closest to Allstate Arena?

    If being close to Illinois is important to you, you’ll want to land at Chicago O'Hare Intl Airport.

  • Does Chicago O'Hare Intl Airport have car hire?

    Yes. Those touching down at Chicago O'Hare Intl Airport can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl Airport?

    Yes. Chicago O'Hare Intl Airport has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl Airport (0.0 mi away from Chicago O'Hare Intl Airport).

See more FAQs

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