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Cheap flights to Illinois from £199

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 3/6. 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
12 May — 19 May1
1 adult
Sun 12/5
Sun 19/5

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 869,692 searches and data was last updated on 7 May 2024.

Popular in

July

Cheapest in

February

Average price

£546

Return from

£403

One-way from

£199
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in May 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 7 May 2024
Explore Illinois

Cheap flights to Illinois in May & June 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 May and June 2024. Prices refresh often so be sure to come back soon for more deals.
Cheap flights to Chicago, Illinois
Mon 13/509:30LHR - ORD
1 stop11h 11mAir Canada
Wed 22/510:55ORD - LHR
1 stop13h 35mAir Canada
Deal found 6/5£417
Tue 14/509:30LHR - ORD
1 stop11h 11mAir Canada
Tue 21/510:55ORD - LHR
1 stop13h 35mAir Canada
Deal found 6/5£419
Mon 13/506:35LHR - ORD
1 stop13h 10mAmerican Airlines
Mon 20/513:59ORD - LHR
1 stop11h 46mAmerican Airlines
Deal found 6/5£421
Mon 13/509:30LHR - ORD
1 stop11h 11mAir Canada
Mon 20/506:00ORD - LHR
1 stop18h 35mAir Canada
Deal found 6/5£423
Mon 13/512:15LHR - ORD
Nonstop8h 40mAmerican Airlines
Mon 20/518:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 6/5£426
Tue 14/511:05LHR - ORD
Nonstop8h 40mBritish Airways
Wed 22/521:25ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£427
Tue 14/506:50LHR - ORD
2 stops13h 51mAir Canada
Tue 21/510:55ORD - LHR
1 stop13h 35mAir Canada
Deal found 6/5£431
Wed 15/506:30LHR - ORD
1 stop14h 15mDelta
Tue 21/517:15ORD - LHR
1 stop11h 45mDelta
Deal found 6/5£433
Wed 15/508:10LHR - ORD
Nonstop8h 35mBritish Airways
Wed 22/521:25ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£434
Cheap flights to Peoria, Illinois
Fri 17/512:15LHR - PIA
1 stop16h 20mAmerican Airlines
Mon 20/511:38PIA - LHR
2 stops16h 32mAmerican Airlines
Deal found 6/5£737
Fri 17/512:00LHR - PIA
1 stop15h 07mAmerican Airlines
Mon 20/511:38PIA - LHR
2 stops16h 32mAmerican Airlines
Deal found 6/5£739
Fri 17/508:10LHR - PIA
1 stop19h 25mBritish Airways
Mon 20/514:49PIA - LHR
1 stop11h 01mBritish Airways
Deal found 6/5£754
Fri 17/508:10LHR - PIA
1 stop19h 25mBritish Airways
Mon 20/514:49PIA - LHR
1 stop15h 56mBritish Airways
Deal found 6/5£777
Fri 17/510:30LHR - PIA
2 stops17h 05mAmerican Airlines
Mon 20/516:25PIA - LHR
2 stops14h 20mAmerican Airlines
Deal found 6/5£778
Fri 17/509:15LCY - PIA
2 stops17h 45mLufthansa
Mon 20/515:45PIA - LCY
2 stops20h 50mLufthansa
Deal found 6/5£1,210
Cheap flights to Moline, Illinois
Thu 13/618:15LHR - MLI
2 stops27h 59mAmerican Airlines
Mon 17/616:23MLI - LHR
1 stop10h 42mAmerican Airlines
Deal found 6/5£867
Thu 13/606:30LHR - MLI
2 stops16h 25mKLM
Mon 17/617:35MLI - LHR
1 stop11h 35mKLM
Deal found 6/5£881
Thu 13/606:30LHR - MLI
2 stops21h 37mDelta
Mon 17/606:05MLI - LHR
2 stops19h 10mDelta
Deal found 6/5£883
Thu 13/613:55LHR - MLI
1 stop14h 12mKLM
Mon 17/617:35MLI - LHR
1 stop11h 35mKLM
Deal found 6/5£895
Thu 13/607:50LCY - MLI
2 stops19h 27mLufthansa
Mon 17/617:45MLI - LCY
2 stops40h 40mLufthansa
Deal found 6/5£1,013

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 869,692 searches and data were last updated on 7 May 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 10/911:05LHR - ORD
Nonstop8h 40mBritish Airways
Mon 23/916:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£403
Wed 25/913:10LHR - ORD
Nonstop8h 40mBritish Airways
Mon 30/921:15ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£404
Tue 10/913:10LHR - ORD
Nonstop8h 40mBritish Airways
Mon 23/921:15ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£404
Tue 10/906:00LHR - ORD
1 stop12h 10mMultiple Airlines
Mon 23/910:55ORD - LHR
1 stop13h 35mMultiple Airlines
Deal found 6/5£405
Tue 10/906:00LHR - ORD
1 stop12h 10mMultiple Airlines
Mon 23/921:30ORD - LHR
Nonstop8h 15mMultiple Airlines
Deal found 6/5£407
Tue 10/906:00LHR - ORD
1 stop12h 10mMultiple Airlines
Mon 23/921:30ORD - LHR
Nonstop8h 15mMultiple Airlines
Deal found 6/5£410
Wed 25/906:10LHR - ORD
1 stop13h 35mAmerican Airlines
Mon 30/920:25ORD - LHR
Nonstop7h 55mAmerican Airlines
Deal found 6/5£411
Wed 25/906:10LHR - ORD
1 stop13h 35mAmerican Airlines
Mon 30/922:10ORD - LHR
1 stop10h 45mAmerican Airlines
Deal found 6/5£413
Mon 28/1011:00LHR - ORD
Nonstop8h 55mFinnair
Mon 4/1117:00ORD - LHR
Nonstop7h 40mFinnair
Deal found 6/5£415

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 869,692 searches and data was last updated on 7 May 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.
Mon 13/509:30LHR - ORD
1 stop11h 11mAir Canada
Wed 22/510:55ORD - LHR
1 stop13h 35mAir Canada
Deal found 6/5£417
Fri 17/512:15LHR - PIA
1 stop16h 20mAmerican Airlines
Mon 20/511:38PIA - LHR
2 stops16h 32mAmerican Airlines
Deal found 6/5£737

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 869,692 searches and data was last updated on 7 May 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.
Mon 3/619:50LTN - ORD
2 stops44h 24mMultiple Airlines
Deal found 6/5£199

Direct flights to Illinois

Tue 10/911:05LHR - ORD
Nonstop8h 40mBritish Airways
Mon 23/916:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£403
Wed 25/913:10LHR - ORD
Nonstop8h 40mBritish Airways
Mon 30/921:15ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£404
Tue 10/913:10LHR - ORD
Nonstop8h 40mBritish Airways
Mon 23/921:15ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£404
Mon 28/1011:00LHR - ORD
Nonstop8h 55mFinnair
Mon 4/1117:00ORD - LHR
Nonstop7h 40mFinnair
Deal found 6/5£415
Tue 24/911:05LHR - ORD
Nonstop8h 40mBritish Airways
Mon 30/916:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£427
Tue 29/1010:25LHR - ORD
Nonstop9h 20mUnited Airlines
Tue 5/1115:55ORD - LHR
Nonstop8h 00mUnited Airlines
Deal found 6/5£441
Thu 16/508:10LHR - ORD
Nonstop8h 35mBritish Airways
Mon 20/523:00ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 6/5£446
Tue 10/911:05LHR - ORD
Nonstop8h 40mBritish Airways
Thu 19/921:20ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£452
Thu 16/513:10LHR - ORD
Nonstop8h 40mBritish Airways
Wed 22/521:25ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 6/5£457

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 £199 while a return flight costs £423. Price data was last updated on 28 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 £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

£478

February

£493

March

£484

April

£495

May

£513

June

£602

July

£622

August

£570

September

£533

October

£515

November

£496

December

£500

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 3 May 2024.
The best time to book flights to Illinois is 84 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 7 May 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about British Airways, American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.1
Very Good
10,818 reviews
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.9
Good
1,602 reviews
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
2,013 reviews
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,379 reviews
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.7
Good
740 reviews
8.1
Very Good
10,818 reviews

Overall

8.1

Crew

8.6

Comfort

7.9

Boarding

8.2

Food

7.4

Entertainment

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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.

  • 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 Midway Airport is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago Midway Airport typically cost £30, while return flights cost around £48.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around £247, however they can be found for as little as £61.

  • 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?

    f being close to Allstate Arena 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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