Cheap flights from Chicago to London Heathrow

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Info about flights from Chicago to London Heathrow

Some useful info about flights from Chicago to London Heathrow to help you plan your next trip

Average flight duration 7h 41m
Cheapest month February
Average number of flights per week 4
First flight time 09:00
Last flight time 22:45
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

How to get the best price from Chicago to London Heathrow?

Depending on when you travel and how far in advance you book, fares between Chicago and London can differ a lot.

Pick a travel date to see today’s available fares.

Search engines like Jetcost can highlight price changes in just seconds. For example, some users find better prices by flying on one day of the week over another — try several searches to spot the cheapest day.

Which departure and arrival airports are available?

Between Chicago and London, flight options may depend on the combination of airports available.

  • Airports in Chicago: Chicago is connected by 3 airports - Midway, O'Hare, Rockford.
  • Airports in London: London is served by 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

Sometimes flying into a nearby city can be more cost-effective. When a city has multiple airports, it’s worth comparing different flight combinations.

Flights from Chicago to London - Heathrow

Choose the right flight for your trip from Chicago to London Heathrow

Jetcost helps you tailor your flight search based on what matters to you — flight length, budget, airline, or agency. Whether you prefer round-trip or one-way, direct or with stopovers, you’ll see options from eDreams, Expedia, and more.

Other popular destinations

Flying to United Kingdom? Many users also explore: Edinburgh, London, Manchester, Newcastle, Newquay.

Looking for a specific airline? Select it directly in the filters to speed up your search. The search filters help you see only the options that match your needs.
Frequently Asked Questions

Frequently asked questions about flights from Chicago to London Heathrow.

How much does an airline ticket from Chicago to London Heathrow cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Chicago to London Heathrow.

How far is Chicago from London?

Chicago is about 3940 mi from London.

What are the airports in London?

London has 6 airports: City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

What are the airports in Chicago?

Chicago has 3 airports: Midway, O'Hare, Rockford.

What are the most popular cities in United Kingdom?

The most popular cities in United Kingdom according to our users' searches are: Edinburgh, London, Manchester, Newcastle, Newquay.

When should I book a flight from Chicago to London?

The best time to book a flight from Chicago to London is 1 month in advance, while the worst time is 10 weeks in advance.

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

The cheapest month to fly from Chicago to London is February.

What is the most expensive month to fly from Chicago to London?

The most expensive month to fly from Chicago to London is May.

What is the best day of the week to fly from Chicago to London?

This information is not available at the moment.