New York (JFK) to London (LON): 3,442 miles (5,540 km) great-circle, about 7h 25m nonstop by our estimate. Cheapest fare observed: $705 round-trip on Air France, with 1 stop, departing April 29, 2026.
$705 round-trip, Air France AF3748, departing 2026-04-29 at 16:30, returning 2026-04-30. The recorded itinerary left on a Wednesday, returning on a Thursday 1 night later; the fare was observed 4 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $705, it ranked 21st of the 30 round-trip fares we recorded from JFK (median $453). That is 20.5 cents per great-circle mile (round-trip price over one-way distance), above the JFK median of 17.8 cents across 30 round-trip routes.
Routes from JFK of similar length: Paris (3,625 mi) at $477 and Barcelona (3,822 mi) at $691.
JFK to LON is the only one of 30 JFK routes where Air France priced cheapest. It is the 13th longest of the 30 routes we track from JFK.
Of 49 departure airports with a fare to London, New York (JFK) ranked 21st at $705. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.
That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, Europe/London; flight time is our estimate.