What are the cheapest airlines flying from London Heathrow Airport to Chicago round-trip?

Currently priced at £461, Delta will fly you from London Heathrow Airport to Chicago and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Finnair and Air Canada - these airlines can fly you to your destination from £461 and £462, respectively. These flights start at 18% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from London Heathrow Airport to Chicago one-way?

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £379. Aer Lingus flights start at £396 while deals on Scandinavian Airlines start at £437 one-way.

What are the cheapest flights from London Heathrow Airport to Chicago?

Looking for the cheapest flight from London Heathrow Airport to Chicago? While on average our users pay £1,449, our data indicates the cheapest price to be £492. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £334.

What are the most reliable airlines from London Heathrow Airport to Chicago?

Before booking your flight to Chicago from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SWISS (89%), Air Canada (86%), Austrian Airlines( 86%).

What are the most popular airlines that fly from London Heathrow Airport to Chicago?

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

What is the cheapest day to fly round-trip from London Heathrow Airport to Chicago?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from London Heathrow Airport to Chicago?

Users have found that booking a flight from London Heathrow Airport to Chicago at least 45 days early can save you up to 21% on average compared to booking a flight this week. If booking 45 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Chicago for as little as £544 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £618 for flights departing within the next 3 days.

What is the cheapest month to fly from London Heathrow Airport to Chicago?

February is one of the best times of the year to fly to Chicago from London Heathrow Airport. Prices for February average £560 per person but you can even find prices for as low as £356. The most expensive prices can be found in the month of August. Opting for a February flight can save you 25% on your journey compared to booking in August

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

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

How can I find direct flights from Heathrow to Chicago?

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

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

Yes. Cheapflights offers flight deals from Heathrow 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.

£375+ Flights from London Heathrow Airport to Chicago

The best prices from London Heathrow to Chicago are usually found in February or January, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to Chicago

Round-trip from	£461
One-way from	£375
Popular in	August
Cheapest in	February
Average price	£630

Delta
13/1-27/1
3 total stops
35h 31m total
London to Chicago

Search Deals

30/1
3 total stops
30h 10m total
London to Chicago

Search Deals

High demand for flights, 10% potential price rise

Search Deals

Best time to find cheap flights, 2% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

Find flight deals from Heathrow to Chicago

Cheapest flights from Heathrow to Chicago
Explore the most affordable flight options available from Heathrow to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2024.

Mon 30/1206:40LHR - ORD

1 stop15h 10mScandinavian Airlines

Tue 29/419:15ORD - LHR

1 stop16h 25mScandinavian Airlines

Deal found 27/12£495

Mon 30/1211:55LHR - ORD

Nonstop8h 50mFinnair

Mon 13/115:00ORD - LHR

1 stop13h 15mFinnair

Deal found 27/12£656

Sat 28/1214:30LHR - ORD

1 stop24h 27mLufthansa

Wed 30/416:05ORD - LHR

Nonstop8h 15mLufthansa

Deal found 27/12£705

Mon 30/1209:10LHR - ORD

1 stop13h 59mMultiple Airlines

Sun 5/107:20ORD - LHR

1 stop17h 50mMultiple Airlines

Deal found 27/12£751

Mon 30/1211:45LHR - ORD

1 stop13h 35mAmerican Airlines

Thu 22/517:30ORD - LHR

Nonstop7h 50mAmerican Airlines

Deal found 27/12£798

Mon 30/1209:10LHR - MDW

1 stop14h 34mAir France

Mon 13/110:19MDW - LHR

1 stop14h 46mAir France

Deal found 27/12£799

Sat 28/1220:05LHR - ORD

1 stop26h 10mSWISS

Mon 13/119:05ORD - LHR

1 stop11h 55mSWISS

Deal found 27/12£819

Mon 30/1206:30LHR - MDW

2 stops15h 54mDelta

Thu 22/513:00MDW - LHR

1 stop13h 55mDelta

Deal found 27/12£834

Mon 30/1209:10LHR - MDW

1 stop14h 34mVirgin Atlantic

Thu 22/513:00MDW - LHR

1 stop13h 55mVirgin Atlantic

Deal found 27/12£849

Fri 27/1210:25LHR - ORD

1 stop15h 35mLOT

Thu 16/121:55ORD - LHR

1 stop29h 40mLOT

Deal found 27/12£852

Fri 27/1219:25LHR - ORD

1 stop24h 40mAustrian Airlines

Thu 16/117:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 27/12£911

Fri 27/1218:00LHR - ORD

2 stops22h 54mAir Canada

Thu 16/111:35ORD - LHR

1 stop13h 35mAir Canada

Deal found 27/12£926

Best flights from Heathrow to Chicago
Discover carefully curated flight deals from Heathrow to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 December 2024.

Mon 13/106:30LHR - ORD

2 stops17h 06mDelta

Mon 27/110:05ORD - LHR

1 stop18h 25mDelta

Deal found 27/12£461

Sun 4/510:20LHR - ORD

1 stop13h 30mFinnair

Tue 13/517:17ORD - LHR

1 stop11h 48mFinnair

Deal found 27/12£461

Fri 31/108:55LHR - ORD

2 stops15h 55mAir Canada

Mon 17/211:35ORD - LHR

1 stop13h 35mAir Canada

Deal found 27/12£462

Fri 24/110:25LHR - ORD

Nonstop9h 25mAustrian Airlines

Mon 27/121:10ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 27/12£463

Tue 4/209:10LHR - MDW

1 stop14h 33mKLM

Mon 17/214:08MDW - LHR

1 stop10h 42mKLM

Deal found 27/12£463

Tue 21/106:30LHR - ORD

2 stops16h 11mUnited Airlines

Tue 15/421:20ORD - LHR

Nonstop8h 25mUnited Airlines

Deal found 27/12£465

Wed 23/410:25LHR - MDW

2 stops17h 21mVirgin Atlantic

Mon 28/413:00MDW - LHR

2 stops13h 05mVirgin Atlantic

Deal found 27/12£465

Tue 4/212:15LHR - ORD

1 stop11h 05mIcelandair

Sun 9/218:30ORD - LHR

1 stop10h 20mIcelandair

Deal found 27/12£467

Sat 5/417:30LHR - ORD

2 stops28h 40mScandinavian Airlines

Sat 19/419:15ORD - LHR

1 stop17h 15mScandinavian Airlines

Deal found 27/12£469

Sun 2/211:00LHR - ORD

Nonstop8h 55mBritish Airways

Mon 17/221:45ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 27/12£470

Fri 17/109:10LHR - MDW

1 stop14h 37mAir France

Mon 20/112:44MDW - LHR

1 stop13h 11mAir France

Deal found 27/12£471

Fri 31/107:40LHR - ORD

1 stop12h 30mLufthansa

Fri 21/217:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 27/12£477

Direct flights from Heathrow to Chicago
Explore direct flight options from Heathrow to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 December 2024.

Mon 5/514:25LHR - ORD

Nonstop8h 35mIberia

Mon 12/522:20ORD - LHR

Nonstop7h 50mIberia

Deal found 27/12£461

Wed 23/408:30LHR - ORD

Nonstop9h 10mBrussels Airlines

Sun 27/416:05ORD - LHR

Nonstop8h 15mBrussels Airlines

Deal found 27/12£461

Thu 27/213:35LHR - ORD

Nonstop9h 25mLufthansa

Wed 5/317:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 27/12£462

Fri 24/110:25LHR - ORD

Nonstop9h 25mAustrian Airlines

Mon 27/121:10ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 27/12£463

Thu 16/111:55LHR - ORD

Nonstop8h 50mBritish Airways

Thu 6/222:00ORD - LHR

Nonstop7h 40mBritish Airways

Deal found 27/12£465

Wed 29/111:55LHR - ORD

Nonstop8h 50mFinnair

Fri 21/218:26ORD - LHR

Nonstop7h 49mFinnair

Deal found 27/12£465

Sat 11/113:35LHR - ORD

Nonstop9h 25mUnited Airlines

Tue 21/117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 27/12£473

Mon 24/211:00LHR - ORD

Nonstop8h 55mMultiple Airlines

Fri 7/321:56ORD - LHR

Nonstop7h 44mMultiple Airlines

Deal found 27/12£538

Sat 8/214:10LHR - ORD

Nonstop8h 50mAmerican Airlines

Sat 26/422:20ORD - LHR

Nonstop7h 50mAmerican Airlines

Deal found 27/12£558

Last-minute flights from Heathrow to Chicago
Discover last-minute flight deals from Heathrow to Chicago. Data last updated 28 December 2024 and is based on user searches.

Wed 1/108:25LHR - ORD

1 stop15h 45mJetBlue

Tue 14/109:05ORD - LHR

1 stop14h 50mJetBlue

Deal found 27/12£724

Wed 1/114:10LHR - ORD

Nonstop8h 50mFinnair

Tue 14/122:00ORD - LHR

Nonstop7h 40mFinnair

Deal found 27/12£729

Thu 2/106:40LHR - ORD

1 stop15h 10mScandinavian Airlines

Mon 20/119:10ORD - LHR

1 stop16h 30mScandinavian Airlines

Deal found 27/12£536

Thu 2/118:00LHR - ORD

1 stop21h 01mMultiple Airlines

Mon 20/117:50ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 27/12£688

Thu 2/109:10LHR - MDW

1 stop14h 34mKLM

Wed 15/114:08MDW - LHR

1 stop10h 42mKLM

Deal found 27/12£955

Thu 2/115:00LHR - MDW

2 stops31h 40mMultiple Airlines

Wed 15/118:59MDW - LHR

2 stops29h 31mMultiple Airlines

Deal found 27/12£975

Thu 2/109:10LHR - MDW

1 stop14h 34mVirgin Atlantic

Wed 15/114:08MDW - LHR

2 stops15h 32mVirgin Atlantic

Deal found 27/12£978

Sat 4/106:40LHR - ORD

2 stops19h 27mBritish Airways

Tue 15/420:35ORD - LHR

Nonstop7h 55mBritish Airways

Deal found 27/12£603

Mon 6/114:30LHR - ORD

1 stop28h 41mLufthansa

Sun 19/116:00ORD - LHR

1 stop32h 30mLufthansa

Deal found 27/12£578

Mon 6/118:00LHR - ORD

1 stop25h 11mUnited Airlines

Sun 19/117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 27/12£610

Mon 6/114:30LHR - ORD

1 stop28h 41mAir Canada

Sun 19/120:30ORD - LHR

2 stops28h 40mAir Canada

Deal found 27/12£622

Mon 6/110:25LHR - ORD

Nonstop9h 25mAustrian Airlines

Sun 19/121:10ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 27/12£874

One-way flights from Heathrow to Chicago
Search for one-way flight options from Heathrow to Chicago. Find affordable one-way fares based on user searches. Data last updated 28 December 2024.

Thu 30/114:50LHR - ORD

3 stops30h 10mMultiple Airlines

Deal found 28/12£375

Mon 24/214:50LHR - MDW

2 stops20h 41mMultiple Airlines

Deal found 27/12£377

Mon 27/112:15LHR - ORD

1 stop11h 05mIcelandair

Deal found 28/12£379

Wed 29/108:50LHR - ORD

1 stop16h 25mAer Lingus

Deal found 28/12£396

Sat 25/106:40LHR - ORD

1 stop17h 10mScandinavian Airlines

Deal found 26/12£437

Wed 22/111:00LHR - ORD

Nonstop8h 55mFinnair

Deal found 27/12£441

Tue 28/111:55LHR - ORD

Nonstop8h 50mBritish Airways

Deal found 28/12£442

Sun 6/406:00LHR - ORD

1 stop16h 10mTAP AIR PORTUGAL

Deal found 27/12£467

Sat 1/314:50LHR - ORD

1 stop31h 06mWestJet

Deal found 27/12£473

Wed 26/315:45LHR - ORD

Nonstop9h 00mIberia

Deal found 28/12£475

Tue 22/411:05LHR - ORD

Nonstop9h 05mAustrian Airlines

Deal found 27/12£497

Tue 28/110:25LHR - ORD

Nonstop9h 25mLufthansa

Deal found 28/12£499

Find flights from Heathrow to Chicago within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 5/5

10:20-17:50

1 stop13h 30m

Chicago O'Hare Intl

Sat 10/5

22:20-12:10

Nonstop7h 50m

£461

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Mon 13/1

08:40-18:14

2 stops15h 34m

Chicago Midway

Mon 27/1

09:34-06:50

1 stop15h 16m

£461

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 14/1

09:10-15:30

1 stop12h 20m

Chicago O'Hare Intl

Mon 27/1

13:40-06:50

1 stop11h 10m

£462

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 7/1

18:00-09:01

1 stop21h 01m

Chicago O'Hare Intl

Tue 11/2

14:01-07:10

1 stop11h 09m

£463

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Tue 4/2

09:10-17:43

1 stop14h 33m

Chicago Midway

Mon 17/2

14:08-06:50

1 stop10h 42m

£463

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 21/1

06:30-16:41

2 stops16h 11m

Chicago O'Hare Intl

Tue 15/4

21:20-11:45

Nonstop8h 25m

£465

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Wed 23/4

10:25-21:46

2 stops17h 21m

Chicago Midway

Mon 28/4

13:00-08:05

2 stops13h 05m

£465

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 17/1

08:55-18:50

2 stops15h 55m

Chicago O'Hare Intl

Tue 28/1

11:35-08:05

2 stops14h 30m

£465

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 4/2

12:15-17:20

1 stop11h 05m

Chicago O'Hare Intl

Sun 9/2

18:30-10:50

1 stop10h 20m

£467

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 2/2

11:00-13:55

Nonstop8h 55m

Chicago O'Hare Intl

Mon 17/2

21:45-11:30

Nonstop7h 45m

£470

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 39 results

Best time to book a flight from Heathrow to Chicago

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

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

How far ahead should I book a flight from London Heathrow Airport to Chicago?

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to 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 London Heathrow Airport to Chicago?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago (average of £595). Flying from London Heathrow Airport 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 LHR to CHI?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Chicago in the afternoon. If you’re flexible enough to do this you can expect to save up to 3% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from London Heathrow Airport to Chicago?

Travellers seeking maximum savings on their London Heathrow Airport to Chicago flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Chicago

The most flights from LHR to CHI are scheduled on a Saturday (39 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (38 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

Peruse reviews from past customers who have flown with Austrian Airlines, Iberia and Virgin Atlantic from London to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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

Delta

8.0

Very Good

8,556 reviews

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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

KLM

7.8

Good

1,344 reviews

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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

Finnair

7.7

Good

1,284 reviews

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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

Austrian Airlines

7.6

Good

785 reviews

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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

Virgin Atlantic

7.5

Good

666 reviews

Delta

8.0

Very Good

8,556 reviews

Check prices

Reviews

1 / 10

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 flying from London Heathrow Airport to Chicago round-trip?
Currently priced at £461, Delta will fly you from London Heathrow Airport to Chicago and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Finnair and Air Canada - these airlines can fly you to your destination from £461 and £462, respectively. These flights start at 18% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from London Heathrow Airport to Chicago one-way?
To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £379. Aer Lingus flights start at £396 while deals on Scandinavian Airlines start at £437 one-way.
What are the most reliable airlines from London Heathrow Airport to Chicago?
Before booking your flight to Chicago from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: SWISS (89%), Air Canada (86%), Austrian Airlines( 86%).
What are the cheapest flights from London Heathrow Airport to Chicago?
Looking for the cheapest flight from London Heathrow Airport to Chicago? While on average our users pay £1,449, our data indicates the cheapest price to be £492. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £334.
Can I find deals for flights from Heathrow to Chicago that include hotel bookings?
Yes. In addition to deals on Heathrow to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Chicago.
Can I find deals for business class flights from Heathrow to Chicago?
Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Chicago?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago (average of £595). Flying from London Heathrow Airport 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

Fly from Heathrow to Chicago on these airlines

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Top 10 airlines flying from Heathrow to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest£382	Average£514	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£388	Average£573	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Icelandair	Cheapest£393	Average£555	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£409	Average£613	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£430	Average£597	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£443	Average£591	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Aer Lingus	Cheapest£453	Average£601	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Finnair	Cheapest£473	Average£615	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£476	Average£648	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
American Airlines	Cheapest£480	Average£650	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Chicago?

Cheapflights makes it easy to find Heathrow to Chicago flights 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 Heathrow to Chicago?

Cheapflights helps you find that perfect flight to Chicago from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Chicago from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Heathrow 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 London Heathrow Airport to Chicago from £375

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from London Heathrow to Chicago are usually found in February or January, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to Chicago

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Chicago

Cheapest flights from Heathrow to ChicagoExplore the most affordable flight options available from Heathrow to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2024.

Explore the most affordable flight options available from Heathrow to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2024.

Find flights from Heathrow to Chicago within your budget

Best time to book a flight from Heathrow to Chicago

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

Travel insights for flights from Heathrow to Chicago

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

How far ahead should I book a flight from London Heathrow Airport to Chicago?

Use this chart to determine the optimal time to book a return flight from Heathrow to Chicago. Price data was last updated on 20 December 2024.

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

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

Find hourly flight availability from Heathrow 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 28 December 2024.

What is the cheapest day to fly from London Heathrow Airport to Chicago?

Use this chart to determine the cheapest time to fly return from Heathrow to Chicago. Price data was last updated on 16 December 2024.

Weekly flight availability from London Heathrow Airport to Chicago

Explore weekly flight availability from Heathrow 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 28 December 2024.

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

Peruse reviews from past customers who have flown with Austrian Airlines, Iberia and Virgin Atlantic from London to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 flying from London Heathrow Airport to Chicago round-trip?

What are the cheapest airlines to fly from London Heathrow Airport to Chicago one-way?

What are the most reliable airlines from London Heathrow Airport to Chicago?

What are the cheapest flights from London Heathrow Airport to Chicago?

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

How can I find direct flights from Heathrow to Chicago?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Chicago on these airlines

Choose from the following airlines for your flight from Heathrow to Chicago. Flights are based on user searches made on Cheapflights and were last updated on 28 December 2024.

Top 10 airlines flying from Heathrow to Chicago

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Cheapest flights from Heathrow to Chicago
Explore the most affordable flight options available from Heathrow to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2024.