London Underground strike action: 21-24 April

Due to planned strike action, there will be little to no service across all London Underground services, including the Piccadilly line to Heathrow, between 21 and 24 April 2026. 

 

Heathrow Express, Elizabeth line, and local bus services will run as normal on these days. Please plan your journey prior to travelling to Heathrow, and allow for extra time where necessary, as these services will be busier than normal. 

 

Book Heathrow Express tickets

 

Find out more

Pakistan International Airlines Hero

Pakistan International Airlines

Pakistan International Airlines (PIA), Pakistan’s national flag carrier, is headquartered in Karachi, with hubs at Jinnah International Airport (KHI), Allama Iqbal International Airport (LHE) and Islamabad International Airport (ISB).
Operates in:
T4
Reservation: +44 208 154 6260*
Customer Service: +44 208 154 6260*
Special Assistance: +44 208 154 6260*

* Additional charges may apply [More info]
** International number

IATA Code
Flight numbers begin with IATA code PK.

PK

Alliance membership
This airline is not currently a member of the main airline alliances. It may operate some routes under codeshare agreements (where partner airlines sell seats on the same aircraft, each using its own flight number). Your airline can advise whether this applies to any part of your journey.
fast track

HEATHROW FAST TRACK

Sail through security

Pre-book priority service at airport security and make a flying start to your journey.

Book Fast Track
Imagine your next adventure

COUNTRY AND CITY GUIDES

Imagine your next adventure

Take yourself on a journey through all Heathrow’s destinations. Who knows where it will take you next.

Imagine your next adventure