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Cheap flights to Illinois from £174

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 4/6. 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
2 May — 9 May1
1 adult
Thu 2/5
Thu 9/5

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 925,685 searches and data was last updated on 27 April 2024.

Popular in

July

Cheapest in

February

Average price

£476

Return from

£386

One-way from

£174
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 27 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
Wed 8/507:25LHR - ORD
1 stop12h 30mMultiple Airlines
Wed 15/508:45ORD - LHR
1 stop15h 45mMultiple Airlines
Deal found 26/4£410
Wed 8/506:50LHR - ORD
1 stop11h 10mLufthansa
Wed 15/515:45ORD - LHR
Nonstop8h 10mLufthansa
Deal found 26/4£415
Sat 4/512:45LHR - ORD
1 stop12h 47mVirgin Atlantic
Mon 13/517:15ORD - LHR
1 stop10h 45mVirgin Atlantic
Deal found 26/4£416
Wed 8/506:55LHR - ORD
1 stop13h 00mMultiple Airlines
Mon 13/508:45ORD - LHR
1 stop19h 15mMultiple Airlines
Deal found 26/4£419
Wed 22/520:50LGW - ORD
2 stops42h 05mMultiple Airlines
Tue 28/506:10ORD - LGW
1 stop21h 50mMultiple Airlines
Deal found 26/4£422
Mon 6/506:35LHR - ORD
1 stop13h 10mAmerican Airlines
Mon 20/518:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 26/4£422
Mon 6/509:30LHR - ORD
1 stop11h 11mAir Canada
Mon 20/514:15ORD - LHR
1 stop10h 20mAir Canada
Deal found 26/4£423
Wed 8/506:55LHR - ORD
1 stop13h 00mMultiple Airlines
Mon 13/521:15ORD - LHR
2 stops17h 45mMultiple Airlines
Deal found 26/4£424
Sun 12/520:10LHR - ORD
1 stop24h 10mIberia
Wed 22/523:00ORD - LHR
Nonstop7h 45mIberia
Deal found 26/4£426
Cheap flights to Peoria, Illinois
Sun 26/514:45LHR - PIA
1 stop26h 18mAmerican Airlines
Sun 2/611:38PIA - LHR
1 stop28h 32mAmerican Airlines
Deal found 26/4£897
Sun 26/509:15LHR - PIA
1 stop12h 39mFinnair
Sun 2/616:25PIA - LHR
1 stop10h 40mFinnair
Deal found 26/4£921
Sat 25/515:35LHR - PIA
1 stop28h 46mAmerican Airlines
Sat 1/616:25PIA - LHR
1 stop33h 05mAmerican Airlines
Deal found 26/4£926
Sat 25/508:10LHR - PIA
1 stop15h 38mBritish Airways
Sat 1/614:49PIA - LHR
1 stop11h 01mBritish Airways
Deal found 27/4£927
Sat 25/510:05LHR - PIA
2 stops18h 30mAmerican Airlines
Sat 1/616:25PIA - LHR
1 stop10h 40mAmerican Airlines
Deal found 26/4£935
Sat 25/509:30LHR - PIA
2 stops19h 05mAmerican Airlines
Sat 1/614:49PIA - LHR
2 stops13h 51mAmerican Airlines
Deal found 26/4£936
Sat 25/509:15LHR - PIA
2 stops14h 33mAmerican Airlines
Sat 1/614:49PIA - LHR
2 stops13h 51mAmerican Airlines
Deal found 27/4£965
Sun 26/512:00LHR - PIA
2 stops15h 12mUnited Airlines
Sun 2/615:50PIA - LHR
2 stops12h 50mUnited Airlines
Deal found 26/4£997
Sun 26/520:25LHR - PIA
2 stops30h 47mLufthansa
Sun 2/615:50PIA - LHR
2 stops17h 55mLufthansa
Deal found 26/4£1,037
Cheap flights to Moline, Illinois
Sun 26/509:40LHR - MLI
2 stops18h 36mVirgin Atlantic
Sun 2/606:00MLI - LHR
1 stop18h 25mVirgin Atlantic
Deal found 26/4£907
Sun 26/520:55LHR - MLI
2 stops25h 27mKLM
Sun 2/617:02MLI - LHR
2 stops31h 43mKLM
Deal found 26/4£959
Sun 28/408:10LHR - MLI
1 stop12h 14mAmerican Airlines
Sun 28/416:29MLI - LHR
1 stop13h 41mAmerican Airlines
Deal found 26/4£2,517
Sun 28/408:10LHR - MLI
1 stop12h 14mAmerican Airlines
Sun 28/416:29MLI - LHR
2 stops12h 21mAmerican Airlines
Deal found 26/4£2,642

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 925,685 searches and data were last updated on 27 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.
Tue 4/614:00LGW - ORD
1 stop15h 10mMultiple Airlines
Tue 10/917:56ORD - LGW
1 stop34h 04mMultiple Airlines
Deal found 26/4£386
Wed 6/1106:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Sun 10/1120:25ORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Deal found 26/4£386
Tue 22/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Fri 1/1121:25ORD - LHR
1 stop16h 30mTAP AIR PORTUGAL
Deal found 26/4£394
Tue 26/1107:40LHR - ORD
1 stop12h 30mMultiple Airlines
Tue 3/1211:00ORD - LHR
1 stop14h 10mMultiple Airlines
Deal found 26/4£394
Tue 26/1113:30LHR - ORD
1 stop12h 35mMultiple Airlines
Tue 3/1221:15ORD - LHR
2 stops27h 55mMultiple Airlines
Deal found 26/4£399
Tue 26/1111:00LHR - ORD
Nonstop8h 55mBritish Airways
Tue 3/1221:45ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 26/4£400
Tue 26/1110:25LHR - ORD
Nonstop9h 20mMultiple Airlines
Tue 3/1211:00ORD - LHR
1 stop14h 10mMultiple Airlines
Deal found 26/4£401
Mon 16/908:30LHR - ORD
Nonstop8h 55mMultiple Airlines
Tue 1/1021:18ORD - LHR
2 stops17h 42mMultiple Airlines
Deal found 26/4£406
Tue 10/919:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Sun 15/918:00ORD - LHR
1 stop17h 45mTAP AIR PORTUGAL
Deal found 26/4£406

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 925,685 searches and data was last updated on 27 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.
Sat 4/512:45LHR - ORD
1 stop12h 47mVirgin Atlantic
Mon 13/517:15ORD - LHR
1 stop10h 45mVirgin Atlantic
Deal found 26/4£416

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 925,685 searches and data was last updated on 27 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 4/610:00LGW - MDW
1 stop27h 32mMultiple Airlines
Deal found 26/4£174
Tue 30/708:20LHR - MLI
2 stops18h 57mAmerican Airlines
Deal found 26/4£1,733

Direct flights to Illinois

Mon 16/913:10LHR - ORD
Nonstop8h 40mFinnair
Tue 1/1016:45ORD - LHR
Nonstop7h 50mFinnair
Deal found 26/4£415
Wed 8/511:05LHR - ORD
Nonstop8h 40mBritish Airways
Wed 15/523:00ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 26/4£423
Mon 6/512:15LHR - ORD
Nonstop8h 40mAmerican Airlines
Mon 20/518:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 26/4£426
Mon 16/913:10LHR - ORD
Nonstop8h 40mBritish Airways
Wed 2/1016:45ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 26/4£427
Wed 18/911:05LHR - ORD
Nonstop8h 40mBritish Airways
Sun 29/919:10ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 26/4£429
Fri 10/513:10LHR - ORD
Nonstop8h 40mBritish Airways
Mon 13/508:20ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 26/4£438
Sat 11/514:45LHR - ORD
Nonstop8h 35mIberia
Wed 15/508:20ORD - LHR
Nonstop7h 50mIberia
Deal found 26/4£443
Tue 15/1011:05LHR - ORD
Nonstop8h 40mBritish Airways
Tue 12/1117:00ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 26/4£450
Thu 9/508:10LHR - ORD
Nonstop8h 35mAmerican Airlines
Thu 16/518:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 25/4£454

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 £953 while a return flight costs £416. Price data was last updated on 21 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

£481

February

£496

March

£486

April

£499

May

£513

June

£611

July

£626

August

£573

September

£536

October

£520

November

£498

December

£503

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 27 April 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about TAP AIR PORTUGAL, Lufthansa and British Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

8.1
Very Good
10,966 reviews
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.9
Good
1,626 reviews
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.8
Good
2,061 reviews
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.8
Good
1,385 reviews
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

7.7
Good
746 reviews
8.1
Very Good
10,966 reviews

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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 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 £25.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around £216, however they can be found for as little as £53.

  • 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).

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