Cheap flights from Chicago O'Hare to London Heathrow

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How much should you expect to spend for a flight from Chicago O'Hare to London Heathrow?

Flight prices from Chicago to London change depending on demand and time of booking.

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

Studies show that flying midweek — like on a Tuesday or Wednesday — can be cheaper than weekend flights. Still, airfares change frequently, so check updated prices on Jetcost.

Best airport options between Chicago and London

If you're open to flying into or out of more than one airport, you’ll have more routes to compare.

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

Some airports offer extras like lounges, fast track, or self check-in — good to keep in mind. Comparing airports by services offered helps you balance cost and comfort.

Flights from Chicago - O'Hare to London - Heathrow

Plan smarter: flights from Chicago O'Hare to London Heathrow

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United Kingdom also checked out: Edinburgh, Glasgow, London, Manchester, Newquay.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Chicago O'Hare to London Heathrow.

How much does an airline ticket from Chicago O'Hare 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 O'Hare to London Heathrow.

How far is Chicago from London?

Chicago is about 6344 km 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, Glasgow, London, Manchester, 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 2 weeks in advance.

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

This information is not available at the moment.

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

This information is not available at the moment.

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

This information is not available at the moment.