How to estimate the price of a flight from London Heathrow to Chicago?

It depends. Prices for flights from London to Chicago fluctuate based on several factors.

Select your dates to check current offers.

Checking fares across several nearby dates can help you see which days offer the best deals. Jetcost lets you track price changes and grab the best opportunities.

Which airports are most convenient between London and Chicago?

Whether it’s cost or connection time, the right airport combination can make a difference.

• Airports in London: There are 6 airports in London - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
• Airports in Chicago: In Chicago you can fly to/from 3 airports - Midway, O'Hare, Rockford.

In some cases, flying into a secondary airport can also reduce transfer costs. Connections from multiple airports give you more flight options and airlines.

Plan your perfect flight from London Heathrow to Chicago

Jetcost gives you full control over your flight search. Filter by date, time, duration, price, and airline. See round-trip and one-way options from low-cost and full-service carriers like Delta, United, American, and more.

Other popular destinations

Planning a trip to United States? Other frequent searches include: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Some airlines include baggage in the fare, others don’t — always check the details before booking. If you're looking for round-trip flights, you can easily see the most convenient combinations.