How much is a ticket from London Heathrow to Chicago O'Hare?

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

Choose a date to explore the best fares now.

If you’re flexible with timing, consider overnight flights — they often cost less and are less crowded. Exploring multiple date and time combinations can help you find the cheapest solution.

Are there multiple airports in London and Chicago?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

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

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Adjust your flight filters for London Heathrow – Chicago O'Hare

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to United States? These cities are popular too: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.