Best Time to Fly JFK to LHR

The cheapest days to fly New York (JFK) to London (LHR) are usually Sunday. Tuesday is often the priciest day in the current pattern.Updated June 29, 2026.

Best to Fly

Sunday

Departure Day

MON

TUE

WED

THU

FRI

SAT

SUN

Sunday tend to offer the lowest base fares. Avoid Tuesday.

Best to Book

7-13

Days Advance

Current booking window for this route. Prices often jump significantly inside 21 days.

Best to Go

APR

Lowest Fares

Historical low-season for LHR.

Analyst Brief

The timing gate for New York (JFK) to London (LHR) shows strong weekday stratification. Leaving on Sunday avoids the Tuesday business-travel premium. Ensure you pair this departure timing with the 7-13 day booking window.