Find flights
Deals

£59+ 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 9/1. 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
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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 27 November 2025.

Good round-trip deal

£44 or less

Good one-way deal

£37 or less
Price to beat on a round-trip flight from Illinois.
Search Deals
Price to beat on a one-way flight from Illinois.
Search Deals

Find flights from Illinois

Enter your travel dates to find the best prices.

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 27 November 2025.

Mon 12/118:30ORD - EDI
2 stops19h 45mMultiple Airlines
Tue 20/108:40EDI - ORD
2 stops14h 40mMultiple Airlines
Deal found 24/11£338
Tue 3/218:30ORD - GLA
2 stops19h 50mMultiple Airlines
Sat 7/207:20GLA - ORD
2 stops16h 00mMultiple Airlines
Deal found 26/11£351
Tue 3/218:30ORD - GLA
1 stop9h 25mIcelandair
Sat 7/212:35GLA - ORD
1 stop10h 45mIcelandair
Deal found 26/11£358
Sun 12/419:25ORD - GLA
1 stop12h 00mIcelandair
Sun 19/414:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 26/11£367
Wed 4/218:30ORD - GLA
1 stop9h 25mIcelandair
Wed 18/212:35GLA - ORD
1 stop10h 45mIcelandair
Deal found 24/11£368
Sat 17/118:30ORD - GLA
1 stop9h 25mIcelandair
Mon 26/112:35GLA - ORD
1 stop10h 45mIcelandair
Deal found 25/11£370
Sat 2/519:25ORD - GLA
1 stop12h 00mIcelandair
Sun 10/514:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 24/11£378
Wed 15/419:25ORD - GLA
1 stop12h 00mIcelandair
Tue 21/414:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 24/11£379
Thu 12/218:30ORD - GLA
2 stops20h 55mMultiple Airlines
Mon 16/223:35GLA - ORD
2 stops23h 45mMultiple Airlines
Deal found 25/11£380
Sun 12/419:25ORD - GLA
1 stop12h 00mIcelandair
Sat 18/414:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 26/11£383
Tue 28/419:25ORD - GLA
1 stop12h 00mIcelandair
Tue 12/514:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 24/11£384
Tue 5/507:00ORD - EDI
2 stops29h 25mScandinavian Airlines
Tue 12/519:10EDI - ORD
1 stop27h 00mScandinavian Airlines
Deal found 26/11£399

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 27 November 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sat 2/5

19:25-13:25

1 stop12h 00m

Glasgow Intl

Sun 10/5

14:20-18:15

1 stop9h 55m

£378

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 14/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 24/1

12:35-17:20

1 stop10h 45m

£388

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 18/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Thu 22/1

12:35-17:20

1 stop10h 45m

£388

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 14/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Thu 22/1

11:15-17:20

1 stop12h 05m

£388

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 14/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Fri 23/1

12:35-17:20

1 stop10h 45m

£388

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/4

07:30-09:35

2 stops20h 05m

London Heathrow

Fri 1/5

21:05-16:10

2 stops25h 05m

£427

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 25/3

12:50-18:15

3 stops24h 25m

London Luton

Tue 31/3

15:35-19:50

3 stops34h 15m

£431

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 15/4

10:10-09:20

2 stops17h 10m

London Heathrow

Tue 28/4

19:50-16:10

2 stops26h 20m

£436

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 9/1

19:20-23:25

2 stops22h 05m

London Stansted

Sun 18/1

18:45-16:45

2 stops28h 00m

£438

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 11/1

18:30-16:45

2 stops16h 15m

London Luton

Sat 17/1

06:00-17:20

2 stops17h 20m

£441

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 60 results
1
2
3
...
6

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, May is the cheapest month in which you can book a flight from Illinois (average of £298). Flying from Illinois in June will prove the most costly (average of £686). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Illinois?

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

British Airways
British Airways
From £389
Iberia
Iberia
From £393
United Airlines
United Airlines
From £133
Aer Lingus
Aer Lingus
From £317

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 £22
Dallas/Fort Worth
Dallas/Fort Worth
From £31
New York
New York
From £34
Pittsburgh
Pittsburgh
From £37

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Direct flights from St. Louis

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 27 November 2025.

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

    Chicago O'Hare Intl airport offers the cheapest routes to Almaty, from £295; whereas Chicago Midway airport is typically cheaper if you're flying to London, from £445. 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 May; 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 £295 round trip
    Travel from Chicago to Glasgow from £319 round trip
    Travel from Chicago to Edinburgh from £339 round trip
    Travel from Chicago to Almaty from £961 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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.