What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

One-way options have recently been found by users for as low as £395 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include British Airways from £397 and Aer Lingus from £398 one-way.

What are the most popular routes from United Kingdom to Chicago?

The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.

What are the cheapest flights from United Kingdom to Chicago?

Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,232, our data indicates the cheapest price to be £419. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £379.

What are the most reliable airlines from United Kingdom to Chicago?

No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing United Airlines (90%), SWISS (89%) or Air Canada (87%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from United Kingdom to Chicago?

When booking a flight from United Kingdom to Chicago, you may want to consider flying on American Airlines, Air Canada or Finnair as they are the most popular for this route.

How far in advance should I book a flight from United Kingdom to Chicago?

Find a great deal and save up to 16% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from United Kingdom to Chicago within the next two weeks, with the cheapest ticket starting at £525.

What is the cheapest month to fly from United Kingdom to Chicago?

Our data shows that February tends to be the cheapest month to fly to Chicago from United Kingdom. Users have commonly found prices around £531 for the month, but tickets can be as low as £320. Due to multiple factors, prepare for potentially higher prices in August.

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to Chicago?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.

Can I find deals for business class flights from United Kingdom to Chicago?

Yes. Cheapflights offers flight deals from United Kingdom to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£450+ Flights from the United Kingdom to Chicago - Compare & Save Big

Cheap flight deals from United Kingdom to Chicago

Round-trip from	£415
One-way from	£228
Popular in	August
Cheapest in	February
Average price	£517
Good round-trip deal	£539 or less
Good one-way deal	£533 or less

Finnair
15/5-19/5
3 total stops
38h 17m total
United Kingdom to Chicago

Search Deals

13/5
2 total stops
25h 02m total
United Kingdom to Chicago

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Price to beat on a round-trip flight from United Kingdom to Chicago (CHI).

Search Deals

Price to beat on a one-way flight from United Kingdom to Chicago (CHI).

Search Deals

Find flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Thu 15/510:40LGW - ORD

1 stop16h 42mFinnair

Mon 19/505:00ORD - LGW

2 stops21h 35mFinnair

Deal found 30/4£415

Thu 28/813:05LHR - ORD

1 stop11h 10mIcelandair

Thu 4/922:15ORD - LHR

1 stop16h 05mIcelandair

Deal found 30/4£416

Thu 8/513:05LHR - ORD

1 stop11h 55mBritish Airways

Thu 15/519:10ORD - LHR

Nonstop7h 55mBritish Airways

Deal found 30/4£417

Thu 25/906:50LHR - ORD

2 stops14h 00mAir Canada

Sun 28/910:40ORD - LHR

1 stop13h 50mAir Canada

Deal found 30/4£419

Wed 26/1111:55LGW - ORD

1 stop11h 25mIcelandair

Mon 1/1218:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 30/4£422

Tue 13/508:40LHR - ORD

1 stop11h 30mVirgin Atlantic

Fri 23/513:45ORD - LHR

2 stops16h 50mVirgin Atlantic

Deal found 30/4£424

Thu 21/809:20LCY - ORD

1 stop10h 50mDelta

Tue 9/916:20ORD - LCY

1 stop9h 50mDelta

Deal found 30/4£430

Fri 9/508:30LHR - ORD

Nonstop9h 05mMultiple Airlines

Sun 18/508:40ORD - LHR

1 stop15h 50mMultiple Airlines

Deal found 30/4£430

Tue 2/1214:10LHR - ORD

Nonstop8h 50mFinnair

Thu 15/117:00ORD - LHR

Nonstop7h 50mFinnair

Deal found 30/4£435

Thu 18/909:25LCY - ORD

1 stop12h 30mMultiple Airlines

Wed 24/922:30ORD - LCY

1 stop11h 55mMultiple Airlines

Deal found 30/4£437

Thu 5/606:30LHR - ORD

1 stop13h 40mDelta

Fri 12/918:10ORD - LHR

1 stop11h 15mDelta

Deal found 30/4£437

Fri 12/911:45LHR - MDW

1 stop12h 51mVirgin Atlantic

Fri 19/914:00MDW - LHR

1 stop17h 10mVirgin Atlantic

Deal found 30/4£437

Best flights from United Kingdom to Chicago
Discover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2025.

Thu 15/510:40LGW - ORD

1 stop16h 42mFinnair

Mon 19/505:00ORD - LGW

2 stops21h 35mFinnair

Deal found 30/4£415

Thu 28/813:05LHR - ORD

1 stop11h 10mIcelandair

Thu 4/922:15ORD - LHR

1 stop16h 05mIcelandair

Deal found 30/4£416

Fri 16/509:15LHR - ORD

1 stop14h 44mBritish Airways

Thu 22/511:45ORD - LHR

1 stop12h 35mBritish Airways

Deal found 30/4£418

Thu 25/906:50LHR - ORD

2 stops14h 00mAir Canada

Sun 28/910:40ORD - LHR

1 stop13h 50mAir Canada

Deal found 30/4£419

Mon 12/506:50LHR - ORD

1 stop11h 10mUnited Airlines

Tue 20/515:45ORD - LHR

1 stop14h 35mUnited Airlines

Deal found 30/4£422

Tue 13/508:40LHR - ORD

1 stop11h 30mVirgin Atlantic

Fri 23/513:45ORD - LHR

2 stops16h 50mVirgin Atlantic

Deal found 30/4£424

Thu 21/809:20LCY - ORD

1 stop10h 50mDelta

Tue 9/916:20ORD - LCY

1 stop9h 50mDelta

Deal found 30/4£430

Thu 18/909:25LCY - ORD

1 stop12h 30mMultiple Airlines

Wed 24/922:30ORD - LCY

1 stop11h 55mMultiple Airlines

Deal found 30/4£437

Wed 15/1019:50LHR - ORD

1 stop22h 45mTAP AIR PORTUGAL

Sun 26/1021:25ORD - LHR

1 stop15h 05mTAP AIR PORTUGAL

Deal found 30/4£440

Tue 12/808:50LHR - ORD

1 stop12h 55mAmerican Airlines

Tue 9/917:45ORD - LHR

Nonstop7h 35mAmerican Airlines

Deal found 30/4£446

Fri 30/520:55LHR - ORD

1 stop23h 15mKLM

Fri 6/613:30ORD - LHR

1 stop13h 20mKLM

Deal found 30/4£450

Fri 16/507:25LHR - ORD

1 stop12h 30mLufthansa

Mon 26/518:05ORD - LHR

Nonstop8h 15mLufthansa

Deal found 29/4£456

Direct flights from United Kingdom to Chicago
Explore direct flight options from United Kingdom to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 May 2025.

Sat 6/912:15LHR - ORD

Nonstop8h 35mBritish Airways

Fri 19/922:35ORD - LHR

Nonstop7h 40mBritish Airways

Deal found 30/4£418

Wed 10/911:05LHR - ORD

Nonstop9h 05mLufthansa

Wed 17/916:00ORD - LHR

Nonstop8h 20mLufthansa

Deal found 30/4£424

Thu 21/809:15LHR - ORD

Nonstop8h 35mAmerican Airlines

Tue 9/922:35ORD - LHR

Nonstop7h 40mAmerican Airlines

Deal found 30/4£451

Tue 13/515:30LHR - ORD

Nonstop8h 45mMultiple Airlines

Fri 23/516:55ORD - LHR

Nonstop7h 55mMultiple Airlines

Deal found 30/4£455

Mon 12/508:30LHR - ORD

Nonstop9h 05mUnited Airlines

Sun 25/516:05ORD - LHR

Nonstop8h 15mUnited Airlines

Deal found 30/4£499

Wed 14/509:15LHR - ORD

Nonstop8h 30mIberia

Wed 25/620:30ORD - LHR

Nonstop8h 00mIberia

Deal found 30/4£504

Thu 14/812:30LHR - ORD

Nonstop8h 35mFinnair

Tue 9/916:55ORD - LHR

Nonstop7h 55mFinnair

Deal found 30/4£510

Sun 15/611:05LHR - ORD

Nonstop9h 05mAustrian Airlines

Sun 20/716:05ORD - LHR

Nonstop8h 15mAustrian Airlines

Deal found 1/5£558

Tue 9/911:30EDI - ORD

Nonstop8h 25mLufthansa

Tue 23/918:35ORD - EDI

Nonstop7h 50mLufthansa

Deal found 30/4£597

Tue 27/511:30EDI - ORD

Nonstop8h 35mUnited Airlines

Tue 10/618:40ORD - EDI

Nonstop7h 45mUnited Airlines

Deal found 30/4£636

Sat 28/608:30LHR - ORD

Nonstop8h 55mBrussels Airlines

Wed 9/718:05ORD - LHR

Nonstop8h 15mBrussels Airlines

Deal found 30/4£662

Last-minute flights from United Kingdom to Chicago
Discover last-minute flight deals from United Kingdom to Chicago. Data last updated 1 May 2025 and is based on user searches.

Tue 6/514:10LHR - ORD

Nonstop9h 05mLufthansa

Tue 13/516:05ORD - LHR

Nonstop8h 15mLufthansa

Deal found 29/4£439

Wed 7/515:40LGW - ORD

1 stop11h 35mIcelandair

Wed 14/519:25ORD - LGW

1 stop10h 20mIcelandair

Deal found 30/4£433

Wed 7/509:30LHR - ORD

2 stops15h 24mAir Canada

Wed 14/510:40ORD - LHR

1 stop13h 50mAir Canada

Deal found 30/4£440

Wed 7/508:40LHR - ORD

2 stops15h 57mDelta

Wed 14/510:31ORD - LHR

1 stop14h 44mDelta

Deal found 30/4£442

Thu 8/513:05LHR - ORD

1 stop11h 55mBritish Airways

Thu 15/519:10ORD - LHR

Nonstop7h 55mBritish Airways

Deal found 30/4£417

Thu 8/509:55LHR - ORD

1 stop15h 26mFinnair

Thu 22/516:44ORD - LHR

1 stop22h 56mFinnair

Deal found 30/4£424

Thu 8/511:45LHR - ORD

1 stop32h 25mVirgin Atlantic

Thu 22/508:40ORD - LHR

1 stop22h 30mVirgin Atlantic

Deal found 30/4£427

Thu 8/506:15LHR - MDW

2 stops18h 30mAir France

Thu 22/509:20MDW - LHR

1 stop21h 50mAir France

Deal found 30/4£445

Thu 8/520:10LHR - MDW

2 stops55h 04mVirgin Atlantic

Thu 22/513:08MDW - LHR

2 stops35h 17mVirgin Atlantic

Deal found 30/4£448

Thu 8/512:15LHR - ORD

Nonstop8h 25mAmerican Airlines

Thu 22/517:40ORD - LHR

Nonstop7h 40mAmerican Airlines

Deal found 30/4£448

Fri 9/513:05LHR - ORD

1 stop11h 10mIcelandair

Mon 26/519:25ORD - LHR

1 stop10h 30mIcelandair

Deal found 30/4£422

Fri 9/508:30LHR - ORD

Nonstop9h 05mMultiple Airlines

Sun 18/508:40ORD - LHR

1 stop15h 50mMultiple Airlines

Deal found 30/4£430

One-way flights from United Kingdom to Chicago
Search for one-way flight options from United Kingdom to Chicago. Find affordable one-way fares based on user searches. Data last updated 1 May 2025.

Tue 13/512:25MAN - ORD

2 stops25h 02mMultiple Airlines

Deal found 29/4£228

Mon 29/907:30EDI - ORD

3 stops43h 10mMultiple Airlines

Deal found 30/4£292

Sat 24/506:30EDI - MDW

2 stops43h 47mMultiple Airlines

Deal found 29/4£339

Wed 14/513:45LHR - ORD

2 stops23h 42mMultiple Airlines

Deal found 30/4£391

Fri 10/1018:25LGW - ORD

3 stops34h 45mMultiple Airlines

Deal found 30/4£391

Thu 3/719:55STN - ORD

2 stops40h 42mMultiple Airlines

Deal found 30/4£393

Wed 7/506:15LTN - ORD

1 stop18h 00mMultiple Airlines

Deal found 30/4£394

Wed 4/618:45LHR - ORD

1 stop26h 40mTAP AIR PORTUGAL

Deal found 30/4£395

Tue 17/613:10LHR - ORD

Nonstop8h 45mBritish Airways

Deal found 30/4£397

Fri 16/521:10LHR - ORD

1 stop22h 50mAer Lingus

Deal found 30/4£398

Fri 12/915:40LGW - ORD

1 stop11h 35mIcelandair

Deal found 30/4£416

Wed 14/513:05MAN - ORD

1 stop14h 10mIcelandair

Deal found 29/4£417

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 15/5

10:40-21:22

1 stop16h 42m

Chicago O'Hare Intl

Mon 19/5

05:00-08:35

2 stops21h 35m

£415

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 28/8

13:05-18:15

1 stop11h 10m

Chicago O'Hare Intl

Thu 4/9

22:15-20:20

1 stop16h 05m

£416

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 16/5

09:15-17:59

1 stop14h 44m

Chicago O'Hare Intl

Thu 22/5

11:45-06:20

1 stop12h 35m

£418

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 25/9

06:50-14:50

2 stops14h 00m

Chicago O'Hare Intl

Sun 28/9

10:40-06:30

1 stop13h 50m

£419

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 12/5

06:50-12:00

1 stop11h 10m

Chicago O'Hare Intl

Tue 20/5

15:45-12:20

1 stop14h 35m

£422

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 13/5

08:40-14:10

1 stop11h 30m

Chicago O'Hare Intl

Fri 23/5

13:45-12:35

2 stops16h 50m

£424

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 15/5

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Tue 3/6

19:25-14:40

1 stop13h 15m

£430

LondonChicago

LCY - ORD

LCYORD

London City

Thu 21/8

09:20-14:10

1 stop10h 50m

Chicago O'Hare Intl

Tue 9/9

16:20-08:10

1 stop9h 50m

£430

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 16/5

09:45-17:02

2 stops13h 17m

Chicago O'Hare Intl

Thu 22/5

16:40-09:00

1 stop10h 20m

£436

LondonChicago

LCY - ORD

LCYORD

London City

Thu 18/9

09:25-15:55

1 stop12h 30m

Chicago O'Hare Intl

Wed 24/9

22:30-16:25

1 stop11h 55m

£437

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 results

...

Best time to book a flight from United Kingdom to Chicago

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

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Chicago

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

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £595). Flying from United Kingdom to Chicago in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to CHI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chicago as you normally would.

Weekly flight availability from United Kingdom to Chicago

The most flights from GB0 to CHI are scheduled on a Monday (53 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (46 on average).

Rainfall in Chicago by month

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

If weather is an important factor for your trip to Chicago, 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).

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown Delta, KLM and LOT from United Kingdom to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,934 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT

7.6

Good

1,069 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

781 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,275 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?
One-way options have recently been found by users for as low as £395 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include British Airways from £397 and Aer Lingus from £398 one-way.
What are the most popular routes from United Kingdom to Chicago?
The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.
What are the most reliable airlines from United Kingdom to Chicago?
No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing United Airlines (90%), SWISS (89%) or Air Canada (87%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from United Kingdom to Chicago?
Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,232, our data indicates the cheapest price to be £419. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £379.
Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?
Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.
Can I find deals for business class flights from United Kingdom to Chicago?
Yes. Cheapflights offers flight deals from United Kingdom to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from United Kingdom to Chicago?
Currently, January is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £595). Flying from United Kingdom to Chicago in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for United Kingdom to Chicago

Heathrow to O'Hare Intl flights

Gatwick to O'Hare Intl flights

London City to O'Hare Intl flights

Heathrow to Midway flights

Heathrow to St. Louis flights

Edinburgh to O'Hare Intl flights

Stansted to O'Hare Intl flights

Gatwick to St. Louis flights

Luton to O'Hare Intl flights

Manchester to O'Hare Intl flights

Birmingham to O'Hare Intl flights

Manchester to Midway flights

London City to St. Louis flights

Edinburgh to Midway flights

Birmingham to Midway flights

Glasgow Intl to Midway flights

Glasgow Intl to O'Hare Intl flights

London City to Midway flights

Inverness to O'Hare Intl flights

Liverpool to O'Hare Intl flights

Bruxelles-National to O'Hare Intl flights

Newcastle upon Tyne to O'Hare Intl flights

Gatwick to Midway flights

Leeds to O'Hare Intl flights

Bristol to O'Hare Intl flights

Exeter to O'Hare Intl flights

Stansted to St. Louis flights

Southampton to Midway flights

Bristol to Midway flights

Manchester to St. Louis flights

Southampton to O'Hare Intl flights

Heathrow to Moline flights

Luton to St. Louis flights

Amsterdam to O'Hare Intl flights

Madrid to O'Hare Intl flights

Newcastle upon Tyne to Midway flights

Belfast Intl to O'Hare Intl flights

Belfast City to O'Hare Intl flights

Dublin to O'Hare Intl flights

Leeds to Midway flights

Cardiff to O'Hare Intl flights

Cardiff to Midway flights

Dublin to Midway flights

Istanbul to O'Hare Intl flights

Frederic Chopin to O'Hare Intl flights

Edinburgh to St. Louis flights

Birmingham to St. Louis flights

Heathrow to Dubuque flights

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Top 10 airlines flying from United Kingdom to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£314	Average£554	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£329	Average£601	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air France	Cheapest£339	Average£468	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Scandinavian Airlines	Cheapest£356	Average£496	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£369	Average£603	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
British Airways	Cheapest£380	Average£579	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Austrian Airlines	Cheapest£409	Average£556	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
United Airlines	Cheapest£410	Average£612	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£415	Average£597	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Lufthansa	Cheapest£416	Average£645	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to Chicago?

When you search for this flight from United Kingdom to Chicago, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to Chicago with no change fees?

Need flexible booking options for your flight to Chicago from United Kingdom? 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 United Kingdom to Chicago become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Chicago flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from the United Kingdom to Chicago from £228

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to Chicago

Keep the following information in mind while searching for United Kingdom to Chicago flight deals. Data was last updated 1 May 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to ChicagoExplore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Best time to book a flight from United Kingdom to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from United Kingdom with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Chicago

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

What is the cheapest time of day to fly from GB to CHI?

Find hourly flight availability from United Kingdom to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 May 2025.

Weekly flight availability from United Kingdom to Chicago

Explore weekly flight availability from United Kingdom to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 May 2025.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 1 May 2025.

Read reviews from past customers who have flown Delta, KLM and LOT from United Kingdom to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

What are the most popular routes from United Kingdom to Chicago?

What are the most reliable airlines from United Kingdom to Chicago?

What are the cheapest flights from United Kingdom to Chicago?

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

How can I find direct flights from United Kingdom to Chicago?

Can I find deals for business class flights from United Kingdom to Chicago?

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

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Alternative routes for United Kingdom to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from United Kingdom to Chicago

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Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.