$820 Cheap British Airways flights London (LHR) to Chicago (ORD)

Landing cheap one-way British Airways flights from LHR to ORD from $820 on Expedia is a breeze — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $561 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

British Airways flights to Chicago tend to be cheaper in the low-season months of January and February. Whether you’re after a round-trip or one-way ticket, you could score a better deal then.

Check for British Airways flights from LHR to ORD about one month before you want to leave. The cheapest time to book an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or fare class, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Depart on one of British Airways’s 9 weekly direct flights from Heathrow Airport (LHR) to O’Hare Intl. Airport (ORD). To see your choices, enter your dates, origin and destination and hit search. Then use the “Nonstop” and “Airline” filters.

Depart Heathrow Airport (LHR) for O’Hare Intl. Airport (ORD) on a direct British Airways flight, and you’ll be in the air for approximately 8h 55m.

If you’re looking for flexibility, Friday offers the most choice for British Airways flights from Heathrow Airport (LHR) to O’Hare Intl. Airport (ORD). Take your pick of 2 different departures.

The first flight from LHR to ORD with British Airways departs at 11:00AM UTC+0. You’ll land at 1:55PM UTC-6. The final British Airways flight of the day leaves at 3:45PM UTC+0 and arrives at 6:45PM UTC-6. With 20% fewer cancellations for morning and mid-morning departures, heading out early is generally the wisest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

O’Hare Intl. Airport (ORD) is the primary Chicago hub for British Airways flights from Heathrow Airport (LHR).

British Airways allows you to bring 1 checked-in bag weighing up to 50 lb with maximum dimensions of 29 inches x 15 inches x 16 inches on standard economy flights from LHR to ORD. Additionally, you can take 2 cabin bags in the cabin. This hand luggage must not exceed 19 inches x 9 inches x 17 inches and weigh less than 50 lb. Baggage rules can differ based on the cabin class and fare type, so check your booking or British Airways’s website to avoid paying additional costs at the airport.

Flying from LHR to ORD with British Airways means enjoying a range of perks, such as top-tier customer service and a 4-star airline rating. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That’s on top of the British Airways Executive Club points you can earn with British Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Heathrow Airport (LHR) to O’Hare Intl. Airport (ORD) route, British Airways typically flies Boeing 787-9 and Boeing 777 planes. Remember that last-minute changes are possible for operational reasons, meaning your flight could be on another aircraft.

Depending on your ticket type, a fee generally applies if you change or cancel your booking more than 24 hours after it has been confirmed. To secure tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when you look for flights. For more information on canceling or modifying your reservation, go to “Trips,” select your flight and click on “Manage Booking.”