Finnair flights from London Heathrow Airport to New York John F Kennedy Intl Airport (LHR - JFK)

The best time to book a flight to New York John F Kennedy Intl Airport with Finnair is 38 days before departure. On average, fares are higher if you book on the same day as departure.

For Economy class flights, the cheapest month to fly this route is February. The most expensive months are June and January.

In terms of precipitation, rainfall in New York John F Kennedy Intl Airport ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit New York John F Kennedy Intl Airport when rainfall is around 71.0 mm.

If weather is an important factor for your trip to New York John F Kennedy Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).