LHR → PHLLondon to Philadelphia

live

Direct flights from London (LHR) to Philadelphia (PHL): 14 nonstop departures observed each week across 2 airlines. 80% of the last 15 operated flights arrived within 15 minutes of schedule. The median arrival is 8 minutes early. No cancellations were recorded across the 15 tracked flights. The nonstop covers 5,690 km, an estimated 7 hours 48 minutes in the air. Measured by Pro Flight Search from live flight boards at London and Philadelphia. Updated 16 September 2026 at 21:11 UTC.

LHR London heavy · +30
PHL Philadelphia smooth · +0
5,690 km · ~7h 48m est.
dep bank 09:15–13:4514x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
80% on time

of the last 15 operated LHR → PHL flights arrived within 15 minutes

Median arrival delay is −8 min. 0 of 15 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−8 minacross the last 15 operated legs
Flight time~7h 48mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 15

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesBritish Airways

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
American AirlinesAA100% on time

Flights AA729 09:15 daily · AA737 varies daily

British AirwaysBA40% on time

Flights BA67 13:45 daily

History

operated legs · board outcomes
09-16AA729dep +5 → arr−15
09-16AA737dep +18 → arr−23
09-16BA67dep +34 → arr+9
09-15AA729dep +34 → arr−8
09-15AA737dep +11 → arr−37
09-15BA67dep +19 → arr−24
09-14AA729dep +10 → arr−12
09-14AA737dep +24 → arr−8
09-14BA67dep +57 → arr+35
09-13AA729dep +27 → arr+11
09-13AA737dep +20 → arr−8
09-13BA67dep +59 → arr+44
09-12AA729dep +23 → arr−14
09-12AA737dep +29 → arr−7
09-12BA67dep +28 → arr+20

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
LHRLondon +30 min heavy 🌤 clear · WNW 9 kt Full LHR delay board →
PHLPhiladelphia +0 min smooth 🌤 mostly cloudy · WSW 8 kt Full PHL delay board →

Weather lens

Current conditions put the pressure at PHL: 38% odds of a 15+ minute delay and around +12 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the London to Philadelphia route actually runs

Pro Flight Search records official board updates for nonstop LHR to PHL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — London (LHR) to Philadelphia (PHL) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/LHR-PHL
How we measure this →

LHR to PHL questions

Is LHR–PHL running on time right now?

Mostly on schedule. The departure side at LHR is the weaker end, route health score 80/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on LHR–PHL?

Operators schedule morning departures around 09:15 from LHR. Earlier flights typically land before destination-airport delays accumulate later in the day; check the PHL delay card to confirm conditions when you'd arrive.

How long is the flight from LHR to PHL?

Great-circle distance is 5,690 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 432–518 min gate-to-gate on this route.

How often does LHR–PHL fly?

2 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.