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£88+ Cheap flights from Chicago

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. 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.
CHI — LHR
18 Jun — 25 Jun1
1 adult

What to know about flights from Chicago

Discover essential information about flights departing from Chicago, including flight schedules, destinations, airlines operating at the Chicago 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 13 June 2025.

Cheapest airline

Frontier

Good round-trip deal

£43 or less

Good one-way deal

£27 or less
On average, Frontier currently has the cheapest one-way flight from Chicago (avg. price of £119).
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Price to beat on a round-trip flight from Chicago.
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Price to beat on a one-way flight from Chicago.
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Find flights from Chicago

Cheapest flights from Chicago
Explore the most affordable flight options available from Chicago. Find the lowest fares based on data from user searches, with prices last updated on 13 June 2025.

Tue 9/919:25ORD - GLA
1 stop12h 00mIcelandair
Thu 25/914:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 12/6£403
Mon 4/816:55ORD - GLA
1 stop13h 55mBritish Airways
Wed 20/809:25GLA - ORD
1 stop14h 50mBritish Airways
Deal found 10/6£426
Tue 9/919:25ORD - GLA
1 stop12h 00mMultiple Airlines
Tue 23/920:55GLA - ORD
2 stops31h 52mMultiple Airlines
Deal found 11/6£428
Mon 4/819:15ORD - GLA
1 stop13h 25mAmerican Airlines
Wed 20/808:40GLA - ORD
1 stop12h 00mAmerican Airlines
Deal found 11/6£450
Mon 27/1021:45ORD - GLA
1 stop13h 50mIberia
Mon 10/1119:20GLA - ORD
1 stop26h 05mIberia
Deal found 11/6£451
Sun 2/1122:35ORD - GLA
1 stop18h 35mLufthansa
Thu 20/1112:40GLA - ORD
1 stop13h 25mLufthansa
Deal found 11/6£475
Tue 26/819:15ORD - LHR
2 stops17h 35mScandinavian Airlines
Sat 6/910:20LHR - ORD
1 stop11h 50mScandinavian Airlines
Deal found 12/6£492
Tue 4/1119:05ORD - LCY
1 stop17h 35mSWISS
Tue 11/1109:15LCY - ORD
1 stop13h 00mSWISS
Deal found 12/6£492
Mon 28/719:05ORD - LGW
1 stop16h 45mSWISS
Mon 11/818:35LGW - ORD
1 stop27h 20mSWISS
Deal found 12/6£493
Mon 4/819:25ORD - LGW
1 stop10h 20mIcelandair
Wed 13/815:40LGW - ORD
1 stop11h 35mIcelandair
Deal found 12/6£494
Mon 4/815:14ORD - LHR
1 stop10h 36mIberia
Wed 13/809:15LHR - ORD
Nonstop8h 40mIberia
Deal found 12/6£495
Mon 1/919:25ORD - LGW
1 stop10h 20mMultiple Airlines
Mon 8/910:00LGW - ORD
2 stops18h 28mMultiple Airlines
Deal found 12/6£495

Find flights from Chicago within your budget

Find flights departing from Chicago 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 13 June 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

Tue 9/9

19:25-13:25

1 stop12h 00m

Glasgow Intl

Thu 25/9

14:20-18:15

1 stop9h 55m

£403

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Mon 4/8

16:55-12:50

1 stop13h 55m

Glasgow Intl

Wed 20/8

09:25-18:15

1 stop14h 50m

£426

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 9/9

19:25-13:25

1 stop12h 00m

Glasgow Intl

Tue 23/9

20:55-22:47

2 stops31h 52m

£428

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Mon 4/8

19:15-14:40

1 stop13h 25m

Glasgow Intl

Wed 20/8

08:40-14:40

1 stop12h 00m

£450

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Mon 27/10

21:45-16:35

1 stop13h 50m

Glasgow Intl

Mon 10/11

19:20-15:25

1 stop26h 05m

£451

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 2/11

22:35-23:10

1 stop18h 35m

Glasgow Intl

Thu 20/11

12:40-20:05

1 stop13h 25m

£475

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 26/8

19:15-18:50

2 stops17h 35m

London Heathrow

Sat 6/9

10:20-16:10

1 stop11h 50m

£492

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Tue 4/11

19:05-18:40

1 stop17h 35m

London City

Tue 11/11

09:15-16:15

1 stop13h 00m

£492

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 28/7

19:05-17:50

1 stop16h 45m

London Gatwick

Mon 11/8

18:35-15:55

1 stop27h 20m

£493

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 4/8

19:25-11:45

1 stop10h 20m

London Gatwick

Wed 13/8

15:40-21:15

1 stop11h 35m

£494

Flights are sorted by cheapest return flights first.

Deals found on 10/6

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

Have a flexible travel schedule? Discover the best time to fly from Chicago 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 Chicago

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

When is the best time to book a flight from Chicago?

Use this chart to determine the optimal time to book a return flight from Chicago to Heathrow. Price data was last updated on 9 June 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Chicago (average of £288). Flying from Chicago in June will prove the most costly (average of £639). 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 Chicago?

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

British Airways
British Airways
From £440
Iberia
Iberia
From £573
Spirit Airlines
Spirit Airlines
From £73
Aer Lingus
Aer Lingus
From £480

What are popular destinations to fly to from Chicago?

If you’re flying from Chicago, these routes are more frequently taken by airlines Detroit (1,226 flights per day), New York (985 flights per day) and Los Angeles (762 flights per day).

London
London
From £370
New York
New York
From £52
Oklahoma City Will Rogers World
Oklahoma City Will Rogers World
From £447

What is the cheapest place to fly to from Chicago?

The cheapest city to fly to from Chicago is Palm Beach Intl, with prices starting at £21. Explore other affordable destinations below.

Palm Beach Intl
Palm Beach Intl
From £29
Miami
Miami
From £32
Monterrey Gen Mariano Escobedo
Monterrey Gen Mariano Escobedo
From £37
Nashville Intl
Nashville Intl
From £39

Airline reviews for flights from Chicago

Get insights into the airlines that provide service from Chicago. 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 Chicago. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Browse thousands of different options on Cheapflights for your next trip

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Direct flights from Illinois

Book a direct flight from one of these other cities located in Illinois.
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Related info for your journey

Access useful and relevant information related to your journey from Chicago. 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 13 June 2025.

  • What are the most popular destinations to fly to from Chicago?

    This month, the top selected destinations from Chicago are Athens, Boston, Amman. Throughout the year, Atlanta, Boston, Mumbai are some of the top choices made by users flying from Chicago.

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

    Chicago O'Hare Intl airport offers the cheapest routes to Almaty, from £270; whereas Chicago Midway airport is typically cheaper if you're flying to Edinburgh, from £478. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What are the cheapest airlines flying from Chicago to anywhere?

    Over the past few days, we've found that Frontier, Spirit Airlines, and Delta have the cheapest prices from Chicago. Frontier flights from Chicago to Denver Intl (£41), Spirit Airlines flights from Chicago to Las Vegas Harry Reid Intl (£49), and Delta flights from Chicago to Salt Lake City (£95).

  • What is the cheapest month to fly from Chicago?

    At the present moment the cheapest month to fly from Chicago 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 Chicago?

    Check out the cheapest flights from Chicago to embark to:
    Travel from Chicago to London from £270 round trip
    Travel from Chicago to Edinburgh from £333 round trip
    Travel from Chicago to Glasgow from £403 round trip
    Travel from Chicago to Almaty from £934 round trip

  • How does Cheapflights help users find flights from Chicago?

    900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Chicago today with Cheapflights!

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

    Millions of users choose and trust Cheapflights to book the best flight deals from Chicago for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

    Yes, we can. To see specific flights from Chicago with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

    Yes! Start tracking prices for flights from Chicago today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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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 Chicago?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight from Chicago today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Chicago for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Chicago with no change fees?

Yes, we can. To see specific flights from Chicago with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for flights from Chicago today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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