This page tracks LHR’s daily on-time outlook and explains the airport’s known disruption patterns, with direct lines to the airlines that matter here.
Today’s on-time outlook for LHR
Checking…
Prediction from the Amadeus travel network, refreshed daily.
What disrupts LHR
Europe's busiest hub runs at ~99% slot capacity, which means zero slack: a strike, system outage, or snow flurry cancels flights outright rather than delaying them. British Airways and Virgin Atlantic are the home teams.
Local knowledge: At Heathrow, cancellations replace delays — get on the airline's app the moment disruption news breaks, before the queue forms.
Flight delayed or cancelled at LHR? Do this
- Open your airline’s app and grab any rebooking it offers — then keep improving it with an agent.
- Queue twice: request a phone call-back and stand in the desk line at the same time. The numbers below go straight to the airlines.
- Vouchers aren’t always your best deal — check the cancellation guide and compensation guide first.
- Check your live flight status — our free status tool shows gate and delay data before the boards update.
Major airlines at LHR — direct phone lines
Every number in our directory is the airline’s own published line — free, no middleman.
LHR delay questions
Is LHR delayed right now?
The prediction card at the top of this page refreshes daily from the Amadeus network. For a specific flight, check our live flight status tool — airport-wide averages matter less than your aircraft’s actual rotation. At Heathrow, cancellations replace delays — get on the airline's app the moment disruption news breaks, before the queue forms.
Which airlines dominate LHR?
British Airways and Virgin Atlantic carry the largest share of traffic at London Heathrow. Their direct customer service lines are listed above — during disruption, call the airline, not the airport.
Who do I call about a cancelled flight at LHR?
Always the airline operating your flight — the airport cannot rebook you. For example, British Airways answers at 1-800-247-9297; every other carrier’s number is in our free directory.