Flights Chicago → London — September 13, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Sunday, September 13, 2026 on the Chicago–London route: 1 stop itinerary (2 flights), from Chicago Midway (MDW) to London Gatwick (LGW), first flight Southwest Airlines WN3183, departs 5:25 AM, flight time 9h (layovers excluded), $568 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 8, 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: United Airlines UA929, from Chicago O'Hare (ORD) to London Heathrow (LHR), departs 4:25 PM, arrives 6:45 AM the next day, direct, 8h 20m, $784 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes allowed for a fee, non-refundable.