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Cheap flights to Illinois from £43

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 23/4. 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.
BOS — ORD
16 Apr — 23 Apr1
1 adult
Tue 16/4
Tue 23/4

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 910,493 searches and data was last updated on 11 April 2024.

Popular in

July

Cheapest in

February

Average price

£474

Return from

£423

One-way from

£207
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 11 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 8/509:52BWI - ORD
1 stop8h 35mFrontier
Wed 15/506:00ORD - BWI
1 stop5h 02mFrontier
Deal found 10/4£71
Wed 24/416:04IAH - ORD
Nonstop2h 39mSpirit Airlines
Sat 27/412:10ORD - IAH
Nonstop2h 54mSpirit Airlines
Deal found 9/4£100
Tue 7/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£101
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Wed 8/508:40ORD - BOS
Nonstop2h 29mJetBlue
Deal found 11/4£101
Wed 8/508:24BWI - ORD
2 stops14h 22mSpirit Airlines
Wed 15/510:58ORD - BWI
1 stop7h 12mSpirit Airlines
Deal found 10/4£104
Sat 4/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 7/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£106
Sat 11/516:35BOS - ORD
Nonstop2h 55mJetBlue
Tue 14/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 9/4£106
Fri 10/512:29BWI - ORD
1 stop13h 27mFrontier
Mon 13/506:00ORD - BWI
1 stop5h 02mFrontier
Deal found 10/4£108
Wed 1/519:35JFK - ORD
Nonstop2h 59mDelta
Sat 4/507:15ORD - JFK
Nonstop2h 14mDelta
Deal found 10/4£111

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 910,493 searches and data were last updated on 11 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.
Wed 8/509:52BWI - ORD
1 stop8h 35mFrontier
Wed 15/506:00ORD - BWI
1 stop5h 02mFrontier
Deal found 10/4£71
Tue 7/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£101
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Tue 14/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 9/4£101
Wed 8/508:24BWI - ORD
2 stops14h 22mSpirit Airlines
Wed 15/510:58ORD - BWI
1 stop7h 12mSpirit Airlines
Deal found 10/4£104
Sat 4/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 7/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£106
Sat 11/516:35BOS - ORD
Nonstop2h 55mJetBlue
Tue 14/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 9/4£106
Fri 10/512:29BWI - ORD
1 stop13h 27mFrontier
Mon 13/506:00ORD - BWI
1 stop5h 02mFrontier
Deal found 10/4£108
Wed 1/519:35JFK - ORD
Nonstop2h 59mDelta
Sat 4/507:15ORD - JFK
Nonstop2h 14mDelta
Deal found 10/4£111
Tue 7/517:30EWR - ORD
1 stop16h 15mSpirit Airlines
Wed 8/521:15ORD - EWR
1 stop10h 48mSpirit Airlines
Deal found 10/4£111

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 910,493 searches and data was last updated on 11 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.
Sun 21/420:55BOS - ORD
Nonstop2h 57mDelta
Wed 17/706:30ORD - BOS
Nonstop2h 28mDelta
Deal found 10/4£134

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 910,493 searches and data was last updated on 11 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 23/413:02BWI - ORD
1 stop5h 25mFrontier
Deal found 10/4£43

Direct flights to Illinois

Tue 7/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 7/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£101
Tue 7/506:10BOS - ORD
Nonstop2h 54mJetBlue
Tue 14/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 9/4£101
Sat 4/508:00JFK - ORD
Nonstop2h 56mJetBlue
Tue 7/517:32ORD - JFK
Nonstop2h 28mJetBlue
Deal found 10/4£106
Sat 11/516:35BOS - ORD
Nonstop2h 55mJetBlue
Tue 14/519:15ORD - BOS
Nonstop2h 26mJetBlue
Deal found 9/4£106
Wed 1/519:35JFK - ORD
Nonstop2h 59mDelta
Sat 4/507:15ORD - JFK
Nonstop2h 14mDelta
Deal found 10/4£111
Sat 11/508:35JFK - ORD
Nonstop2h 42mDelta
Wed 15/518:00ORD - JFK
Nonstop2h 33mDelta
Deal found 10/4£114
Wed 22/506:25BOS - ORD
Nonstop2h 55mDelta
Thu 30/520:10ORD - BOS
Nonstop2h 36mDelta
Deal found 11/4£114
Wed 22/506:25BOS - ORD
Nonstop2h 55mDelta
Wed 29/506:27ORD - BOS
Nonstop2h 27mDelta
Deal found 11/4£117
Mon 6/508:00JFK - ORD
Nonstop2h 56mJetBlue
Wed 8/510:45ORD - JFK
Nonstop2h 23mJetBlue
Deal found 10/4£118

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 910,493 searches and data was last updated on 11 April 2024.

Fly from

Any airport

Budget

£71 - £163

Route

Depart

Return

Price

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 8/5

1 stop8h 35m

Chicago O'Hare Intl

Wed 15/5

1 stop5h 02m

£71

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Tue 7/5

Nonstop2h 50m

Chicago O'Hare Intl

Wed 8/5

Nonstop2h 28m

£101

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 8/5

2 stops14h 22m

Chicago O'Hare Intl

Wed 15/5

1 stop7h 12m

£104

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Wed 1/5

Nonstop2h 59m

Chicago O'Hare Intl

Sat 4/5

Nonstop2h 14m

£111

Boston Logan IntlChicago O'Hare Intl

BOS - ORD

BOSORD

Boston Logan Intl

Sat 1/6

1 stop14h 16m

Chicago O'Hare Intl

Mon 10/6

Nonstop2h 18m

£126

Boston Logan IntlChicago O'Hare Intl

BOS - ORD

BOSORD

Boston Logan Intl

Mon 20/5

1 stop6h 50m

Chicago O'Hare Intl

Wed 22/5

1 stop6h 30m

£137

San FranciscoChicago O'Hare Intl

SFO - ORD

SFOORD

San Francisco

Wed 1/5

Nonstop4h 24m

Chicago O'Hare Intl

Sat 4/5

Nonstop4h 46m

£143

Raleigh-DurhamChicago O'Hare Intl

RDU - ORD

RDUORD

Raleigh-Durham

Tue 2/7

Nonstop2h 18m

Chicago O'Hare Intl

Fri 5/7

Nonstop2h 07m

£151

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sat 11/5

1 stop7h 20m

Chicago O'Hare Intl

Sat 18/5

1 stop6h 06m

£163

Flights are sorted by cheapest first

Deals found on 10/4

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 £43 while a return flight costs £123. 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

£479

February

£493

March

£485

April

£496

May

£502

June

£605

July

£626

August

£567

September

£535

October

£518

November

£497

December

£501

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 11 April 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about Icelandair, Lufthansa and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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
11,189 reviews
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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
1,659 reviews
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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
2,105 reviews
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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
1,377 reviews
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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
748 reviews
8.1
Very Good
11,189 reviews

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.5

Crew

8.6

Comfort

7.9

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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