This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $1265 fare is the cheapest current round-trip from Buenos Aires (EZE) to LON on United Airlines flight UA818, departing 2026-09-01 at 21:00 with return on 2026-09-15.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.