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£75+ 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 1/5. 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.
CHI — LHR
29 Mar — 5 Apr1
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 24 March 2025.

Cheapest airline

Frontier

Good round-trip deal

£41 or less

Good one-way deal

£22 or less
On average, Frontier currently has the cheapest one-way flight from Chicago (avg. price of £116).
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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 24 March 2025.

Fri 2/519:25ORD - MAN
1 stop10h 15mIcelandair
Fri 9/513:05MAN - ORD
1 stop11h 10mIcelandair
Deal found 22/3£415
Mon 5/519:15ORD - LHR
2 stops17h 35mScandinavian Airlines
Mon 12/506:40LHR - ORD
1 stop15h 30mScandinavian Airlines
Deal found 22/3£455
Wed 7/521:08ORD - LGW
2 stops39h 47mMultiple Airlines
Wed 14/510:00LGW - ORD
1 stop36h 03mMultiple Airlines
Deal found 22/3£455
Mon 28/422:20ORD - LHR
Nonstop7h 55mIberia
Wed 7/512:15LHR - ORD
Nonstop8h 25mIberia
Deal found 23/3£456
Thu 1/519:25ORD - LGW
1 stop13h 15mIcelandair
Tue 6/515:40LGW - ORD
1 stop32h 35mIcelandair
Deal found 23/3£456
Sun 6/415:45ORD - LHR
1 stop10h 15mAer Lingus
Tue 15/413:25LHR - ORD
1 stop11h 35mAer Lingus
Deal found 23/3£457
Tue 15/411:30ORD - LHR
1 stop16h 30mMultiple Airlines
Mon 28/419:30LHR - ORD
1 stop23h 50mMultiple Airlines
Deal found 23/3£460
Thu 24/419:25ORD - LHR
1 stop18h 55mIcelandair
Tue 29/421:25LHR - ORD
1 stop26h 50mIcelandair
Deal found 23/3£461
Wed 7/522:15ORD - GLA
1 stop9h 10mIcelandair
Wed 14/514:20GLA - ORD
1 stop9h 55mIcelandair
Deal found 23/3£461
Tue 29/422:20ORD - GLA
1 stop12h 25mBritish Airways
Wed 7/508:40GLA - ORD
1 stop13h 15mBritish Airways
Deal found 23/3£462
Wed 16/420:20ORD - LHR
Nonstop8h 10mFinnair
Tue 22/409:30LHR - ORD
1 stop14h 20mFinnair
Deal found 22/3£463
Thu 1/519:15ORD - STN
2 stops21h 10mMultiple Airlines
Wed 7/514:50STN - ORD
2 stops31h 20mMultiple Airlines
Deal found 22/3£471

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 24 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

19:25-11:40

1 stop10h 15m

Manchester

Fri 9/5

13:05-18:15

1 stop11h 10m

£415

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 5/5

19:15-18:50

2 stops17h 35m

London Heathrow

Mon 12/5

06:40-16:10

1 stop15h 30m

£455

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 7/5

21:08-18:55

2 stops39h 47m

London Gatwick

Wed 14/5

10:00-16:03

1 stop36h 03m

£455

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 28/4

22:20-12:15

Nonstop7h 55m

London Heathrow

Wed 7/5

12:15-14:40

Nonstop8h 25m

£456

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 1/5

19:25-14:40

1 stop13h 15m

London Gatwick

Tue 6/5

15:40-18:15

1 stop32h 35m

£456

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 6/4

15:45-08:00

1 stop10h 15m

London Heathrow

Tue 15/4

13:25-19:00

1 stop11h 35m

£457

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 15/4

11:30-10:00

1 stop16h 30m

London Heathrow

Mon 28/4

19:30-13:20

1 stop23h 50m

£460

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 29/4

22:20-16:45

1 stop12h 25m

Glasgow Intl

Wed 7/5

08:40-15:55

1 stop13h 15m

£462

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

20:20-10:30

Nonstop8h 10m

London Heathrow

Tue 22/4

09:30-17:50

1 stop14h 20m

£463

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

Sun 6/4

19:09-13:10

1 stop12h 01m

London Heathrow

Tue 15/4

11:45-18:20

1 stop12h 35m

£474

Flights are sorted by cheapest return flights first.

Deals found on 23/3

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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 21 March 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, February is the cheapest month in which you can book a flight from Chicago (average of £362). Flying from Chicago 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.

Which airlines fly from Chicago?

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

British Airways

British Airways

From £440

Iberia

Iberia

From £573

Spirit Airlines

Spirit Airlines

From £76

United Airlines

United Airlines

From £132

What are popular destinations to fly to from Chicago?

If you’re flying from Chicago, these routes are more frequently taken by airlines New York (1,467 flights per day), Detroit (1,090 flights per day) and Los Angeles (588 flights per day).

London

London

From £370

Oklahoma City Will Rogers World

Oklahoma City Will Rogers World

From £447

New York

New York

From £36

Toronto

Toronto

From £103

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 £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 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
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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
7,888 reviews
Delta
8.0
Very Good
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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
1,319 reviews
Delta
8.0
Very Good
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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
1,422 reviews
Delta
8.0
Very Good
7,888 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

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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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 24 March 2025.

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

    This month, the top selected destinations from Chicago are Atlanta, Boston, Barcelona-El Prat Airport. Throughout the year, Atlanta, Boston, Athens 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 £374; whereas Chicago Midway airport is typically cheaper if you're flying to Edinburgh, from £474. 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 Porter Airlines have the cheapest prices from Chicago. Frontier flights from Chicago to Denver Intl (£35), Spirit Airlines flights from Chicago to Las Vegas Harry Reid Intl (£52), and Porter Airlines flights from Chicago to Toronto (£77).

  • What is the cheapest month to fly from Chicago?

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

    Check out the cheapest flights from Chicago to embark to:
    Travel from Chicago to London from £374 round trip
    Travel from Chicago to Manchester from £415 round trip
    Travel from Chicago to Glasgow from £446 round trip
    Travel from Chicago to Edinburgh from £450 round trip
    Travel from Chicago to Almaty from £982 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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