How often are BOS to LHR flights on time?

Flights from Boston (BOS) to London (LHR) arrive on time 80% of the time across 12,037 flights of official data.

Which airline is most reliable on the BOS to LHR route?

JetBlue Airways has the best on-time record on this route at 85% across 1,225 flights.

Route reliability

Flights from Boston to London arrive on time 80% of the time across 12,037 flights. Here’s how each airline really performs.

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On-time rate

12,037 flights

On-time = arrived within 15 minutes of schedule, per UK CAA. Compare the reverse leg LHR → BOS.

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Score real BOS–LHR flights on reliability, weather, and connection safety — not just price.

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