$399 Cheap British Airways flights Chicago (ORD) to Lisbon (LIS)

Landing cheap one-way British Airways flights from ORD to LIS from $399 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $453 for your next exciting 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.

January is one of the least expensive months to travel to Lisbon District with British Airways. You could also find great deals on one-way and return tickets in February.

To get affordable flights from ORD to LIS with British Airways, start your search about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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.

Fill in your dates, press search and tick the “Nonstop” filter on Expedia to find any direct flights from ORD to LIS with British Airways or another carrier.

Sort your results by “Morning” and “Early Morning” to find the earliest departures from ORD to LIS. Taking off early means flight cancellations are less likely.**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.

Humberto Delgado Airport (LIS) is the main Lisbon District hub for British Airways flights from O’Hare Intl. Airport (ORD).

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 ORD to LIS. Additionally, you can take 2 cabin bags in the cabin. This carry-on luggage must not exceed 19 inches x 9 inches x 17 inches and be no heavier than 50 lb. Baggage allowances can differ based on your cabin class and fare type, so check your booking or British Airways’s website to avoid extra costs at the airport.

Taking off from ORD to LIS with British Airways comes with a variety of perks, such as top-tier customer service and a 4-star airline rating. Plus, when booking 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.

Changes are generally free within 24 hours of booking, but your airline may charge you after that time. For further details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without being charged, apply the “No cancel fee” or “Changes included” filter when organizing your next getaway.