Flights Chicago → London — September 17, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Thursday, September 17, 2026 on the Chicago–London route: 1 stop itinerary (2 flights) via New York JFK (JFK), from Chicago O'Hare (ORD) to London Heathrow (LHR), first flight JetBlue B61006, departs 10:59 AM, arrives 8:45 PM the next day, total travel time 27h 46m including layovers, flight time 9h 21m (layovers excluded), $412 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 10, 2026 and read by AirSource on September 10, 2026, 19:00 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: British Airways BA1601, from Chicago O'Hare (ORD) to London Heathrow (LHR), departs 10:25 PM, arrives 12:15 PM the next day, direct, 7h 50m, $747 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes allowed for a fee, non-refundable.