Heathrow — Can you leave the airport?
A layover in London can be the best part of your trip — or a stressful dash back to the gate. Heathrow sits about 35 minutes from Paddington / Bond Street by airport rail, and there’s no sterile transit here, so plan for the border either way. Below we work out exactly how much layover time you need to leave, what a realistic plan looks like, and the visa and re-screening details that decide it.
Can you leave the airport?
Built from real transit times — buffers included.
| Layover | Time in city | Verdict |
|---|---|---|
| 3 hours | — | Stay airside |
| 5 hours | — | Stay airside |
| 6 hours | — | Stay airside |
| 8 hours | 2h 50m | Go for it |
| 10 hours | 4h 50m | Go for it |
| 12 hours | 6h 50m | Go for it |
| 24 hours | 18h 50m | Go for it |
Getting to the city
What to do
~45m
~45m
~45m Airport Essentials
Visa & transit
The UK has no universal sterile transit: many travelers pass the border even to connect, and an ETA or visa is now required for most visa-exempt visitors. Plan for immigration either way.
Frequently asked questions
Can I leave Heathrow during a layover?
How long does immigration take at Heathrow?
How do I get from Heathrow to London?
Do I need a visa to leave the airport in London?
Is there sterile transit at Heathrow?
What if I don't have enough time to leave?
Is it worth leaving on a short layover?
Related layover guides
Nearby layover hubs
Run your own numbers for London
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You can leave the airport
Your window is comfortable — immigration, transit and re-screening buffers are already included.