Cheap Flights from Chicago O'Hare International (ORD) to London Heathrow (LHR)

Top tips for finding a cheap flight from Chicago to London

Finding cheap tickets from Chicago to London is easy with a little flexibility. Use our Whole Month search feature to scan through the calendar for the cheapest dates. You can also set up a Price Alert for your route and let us monitor the fares for you, sending notifications when prices change. If you’d rather skip layovers, select the Direct Flights search to view non-stop options that’ll save you time.

Booking your tickets early often leads to savings, but we can also find you some last-minute deals. In general, January is the best time to schedule your trip from Chicago to London, with the lowest average fares across the board. Keep these strategies in mind to find the best itinerary.

Handy information about Chicago airport

Chicago O'Hare International Airport serves as a major hub, offering connections to a multitude of destinations. The airport features four terminals, each catering to different flight operations. Terminal 1 and Terminal 2 primarily handle domestic routes, with some international services mixed in, ensuring comprehensive coverage for travelers. For those flying internationally, Terminal 5 is dedicated to these flights, streamlining the check-in and departure processes for international travelers. All terminals provide a range of ground transportation options, from car rentals and taxis to public transportation and ride-sharing services, facilitating smooth access to and from the city center. Terminal 3, similar to Terminals 1 and 2, accommodates domestic flights and a selection of international departures.

London airport: good to know

London serves as a true global gateway with six airports managing a spectrum of international and domestic flights. The centrally located London City Airport, notable for its single terminal, primarily focuses on domestic and European flights tailored for business travelers, while also offering a few transatlantic routes. It presents various transport options including the Docklands Light Railway, enhancing its accessibility.

Heathrow, the UK's largest airport, operates from four terminals offering comprehensive international connections. You'll find a multitude of transportation channels like the Heathrow Express and the Piccadilly Underground line that provide direct access to and from the heart of the city. Similarly, Gatwick, with two terminals, and Stansted, with one, both offer a range of flights, including low-cost options, and direct train routes into London. Luton, also facilitating primarily budget carriers from its single terminal, connects travelers to London via its nearby train station. Lastly, Southend Airport completes the set with links into the city, chiefly serving domestic and European airlines. Fly from Chicago to London with peace of mind by arranging airport transfers well in advance.

Best time to fly from Chicago to London

The best time to fly from Chicago to London is during the months of July and August when London enjoys mild weather with average temperatures ranging from 59°F to 77°F. These months are perfect for avoiding the chill of winter and the frequent rain showers common in other periods. Although rainfall in London is spread across the year, these summer months offer more consistent weather, suitable for exploring the city comfortably. Do pack a light jacket, as evenings can still be cool, and remember to bring an umbrella to handle any unexpected drizzles.

Reasons to visit London

When planning your trip to London, check out these activities and attractions the city has to offer. Marvel at historic artifacts from around the globe at The British Museum, one of the world's oldest museums. Discover the Tower of London to see the Crown Jewels and learn about the city's rich history. Enjoy a remarkable view of the capital's skyline from the capsules of The London Eye. Don't miss the Notting Hill Carnival, a street festival celebrating Caribbean culture with music, dance, and a parade. This event is a highlight of the year and a true spectacle to witness.

Add hotel bookings and car hire to your Chicago to London flight

Planning your trip to London is easy and convenient with Skyscanner. Choose from reputable car rental brands, including Green Motion, Europcar, and Hertz, to explore the city at your own pace. For your stay, consider the Park Plaza Westminster Bridge London for proximity to major landmarks, or opt for the Sofitel London Heathrow for a luxury experience near the airport. For budget-friendly options, Premier Inn London Heathrow Airport T2 & T3 – Bath Road offers comfort minutes away from your flight.