Flights London → Chicago — September 25, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Friday, September 25, 2026 on the London–Chicago route: 1 stop itinerary (2 flights) via New York JFK (JFK), from London Heathrow (LHR) to Chicago O'Hare (ORD), first flight JetBlue B62220, departs 8:15 AM, arrives 9:58 PM, total travel time 19h 43m including layovers, flight time 10h 57m (layovers excluded), $619 per person. Price found in an Aviasales search on September 11, 2026 and read by AirSource on September 11, 2026, 11:57 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: American Airlines AA87, from London Heathrow (LHR) to Chicago O'Hare (ORD), departs 9:45 AM, arrives 12:25 PM, direct, 8h 40m, $1,441 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes allowed for a fee, non-refundable.