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£78+ Cheap flights from Illinois

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. 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.
ORD — LHR
30 Mar — 6 Apr1
1 adult

What to know about flights from Illinois

Discover essential information about flights departing from Illinois, including flight schedules, destinations, airlines operating at the Illinois airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 25 March 2025.

Good round-trip deal

£41 or less

Good one-way deal

£22 or less
Price to beat on a round-trip flight from Illinois.
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Price to beat on a one-way flight from Illinois.
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Find flights from Illinois

Cheapest flights from Illinois
Explore the most affordable flight options available from Illinois. Find the lowest fares based on data from user searches, with prices last updated on 25 March 2025.

Fri 2/522:15ORD - MAN
1 stop31h 25mIcelandair
Fri 9/513:05MAN - ORD
1 stop11h 10mIcelandair
Deal found 25/3£415
Wed 30/419:25ORD - MAN
1 stop10h 15mMultiple Airlines
Thu 8/511:25MAN - ORD
2 stops38h 42mMultiple Airlines
Deal found 25/3£424
Mon 28/413:50ORD - MAN
1 stop11h 55mVirgin Atlantic
Wed 14/514:15MAN - ORD
1 stop25h 36mVirgin Atlantic
Deal found 24/3£445
Mon 5/519:15ORD - LHR
1 stop17h 15mScandinavian Airlines
Mon 12/507:05LHR - ORD
2 stops15h 05mScandinavian Airlines
Deal found 24/3£455
Sun 4/517:45ORD - LHR
Nonstop7h 35mIberia
Fri 16/514:25LHR - ORD
Nonstop8h 35mIberia
Deal found 24/3£455
Wed 7/505:51ORD - LGW
2 stops19h 04mMultiple Airlines
Wed 14/514:00LGW - ORD
2 stops24h 55mMultiple Airlines
Deal found 24/3£455
Wed 23/415:45ORD - LHR
1 stop10h 15mAer Lingus
Wed 7/513:25LHR - ORD
1 stop11h 35mAer Lingus
Deal found 24/3£458
Mon 7/419:30ORD - LGW
1 stop10h 15mIcelandair
Tue 15/415:40LGW - ORD
1 stop32h 35mIcelandair
Deal found 25/3£458
Tue 22/416:00ORD - LHR
1 stop13h 50mAir Canada
Sun 27/417:40LHR - ORD
1 stop21h 15mAir Canada
Deal found 24/3£459
Fri 25/422:15ORD - LHR
1 stop16h 05mIcelandair
Tue 29/421:25LHR - ORD
1 stop26h 50mIcelandair
Deal found 24/3£461
Thu 1/519:15ORD - STN
2 stops21h 10mMultiple Airlines
Wed 7/514:50STN - ORD
2 stops31h 20mMultiple Airlines
Deal found 24/3£465
Mon 7/415:45ORD - LHR
1 stop15h 35mMultiple Airlines
Tue 15/408:45LHR - ORD
1 stop13h 10mMultiple Airlines
Deal found 24/3£470

Find flights from Illinois within your budget

Find flights departing from Illinois that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 25 March 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Fri 2/5

22:15-11:40

1 stop31h 25m

Manchester

Fri 9/5

13:05-18:15

1 stop11h 10m

£415

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 30/4

19:25-11:40

1 stop10h 15m

Manchester

Thu 8/5

11:25-20:07

2 stops38h 42m

£424

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Mon 28/4

13:50-07:45

1 stop11h 55m

Manchester

Wed 14/5

14:15-09:51

1 stop25h 36m

£445

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 5/5

19:15-18:30

1 stop17h 15m

London Heathrow

Mon 12/5

07:05-16:10

2 stops15h 05m

£455

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 4/5

17:45-07:20

Nonstop7h 35m

London Heathrow

Wed 14/5

12:15-14:40

Nonstop8h 25m

£455

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 7/5

05:51-06:55

2 stops19h 04m

London Gatwick

Wed 14/5

14:00-08:55

2 stops24h 55m

£455

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 23/4

15:45-08:00

1 stop10h 15m

London Heathrow

Wed 7/5

13:25-19:00

1 stop11h 35m

£458

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 7/4

19:30-11:45

1 stop10h 15m

London Gatwick

Tue 15/4

15:40-18:15

1 stop32h 35m

£458

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 22/4

16:00-11:50

1 stop13h 50m

London Heathrow

Sun 27/4

17:40-08:55

1 stop21h 15m

£459

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 25/4

22:15-20:20

1 stop16h 05m

London Heathrow

Tue 29/4

21:25-18:15

1 stop26h 50m

£461

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 60 results
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Best time to book a flight from Illinois

Have a flexible travel schedule? Discover the best time to fly from Illinois with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois

Get recent, data-driven insights about flights from Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois?

Currently, February is the cheapest month in which you can book a flight from Illinois (average of £362). Flying from Illinois in June will prove the most costly (average of £533). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Illinois?

Use this chart to determine the cheapest time to fly return from Illinois to Heathrow. Price data was last updated on 24 November 2024.

Those who are seeking the cheapest fare on flights departing from Illinois would be wise to consider leaving during Tuesday afternoons when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Saturday at midday when fares are usually the most expensive.

Which airlines fly from Illinois?

Many airlines operate round-trip flights from Illinois: British Airways, Iberia, United Airlines, Finnair, Lufthansa. These airlines fly to the following popular destinations: London.

British Airways

British Airways

From £440

Iberia

Iberia

From £564

Spirit Airlines

Spirit Airlines

From £67

United Airlines

United Airlines

From £132

What is the cheapest place to fly to from Illinois?

The cheapest city to fly to from Illinois is Palm Beach Intl, with prices starting at £22. Explore other affordable destinations below.

Palm Beach Intl

Palm Beach Intl

From £29

New Orleans Louis Armstrong

New Orleans Louis Armstrong

From £29

New York

New York

From £36

Monterrey Gen Mariano Escobedo

Monterrey Gen Mariano Escobedo

From £37

Airline reviews for flights from Illinois

Get insights into the airlines that provide service from Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Illinois. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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Direct flights from USA

Book a direct flight from one of these other cities located in USA.
Direct flights from Peoria
Direct flights from Bloomington
Direct flights from Marion

Related info for your journey

Access useful and relevant information related to your journey from Illinois. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 25 March 2025.

  • What is the cheapest airport to fly out of Illinois?

    Chicago O'Hare Intl airport offers the cheapest routes to Almaty, from £227; whereas Chicago Midway airport is typically cheaper if you're flying to Edinburgh, from £488. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Illinois?

    At the present moment the cheapest month to fly from Illinois is currently February; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Illinois?

    Check out the cheapest flights from Illinois to embark to:
    Travel from Chicago to London from £227 round trip
    Travel from Chicago to Manchester from £397 round trip
    Travel from Chicago to Glasgow from £445 round trip
    Travel from Chicago to Edinburgh from £448 round trip
    Travel from Chicago to Almaty from £981 round trip

  • How does Cheapflights help users find flights from Illinois?

    Cheapflights makes it easy to find flights from Illinois by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Illinois with no change fees?

    Need flexible booking options for your flight from Illinois ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Illinois become cheaper?

    Not ready to book yet? You can track prices for flights from Illinois on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

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How does Cheapflights help users find flights from Illinois?

Cheapflights makes it easy to find flights from Illinois by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Illinois with no change fees?

Need flexible booking options for your flight from Illinois ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois become cheaper?

Not ready to book yet? You can track prices for flights from Illinois on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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