How early to arrive at Heathrow
Heathrow recommends 2 hours before European flights and 3 hours before long-haul. In practice, 90 minutes is usually enough for European with carry-on only. Terminal 5 security is efficient; Terminal 2 can be slow during the 06:00–09:00 peak. If you're checking bags, add 20 minutes. Fast-track security is available with business class and some credit cards.
Key facts
Terminal-by-terminal guide
T5 (British Airways, Iberia): the most efficient — security averages 5–10 minutes outside peak. T2 (Star Alliance): can be slow during the 06:00–09:00 rush — allow 15–20 minutes for security. T3 (Virgin, Delta, Emirates): variable — long-haul heavy, can be busy. T4 (SkyTeam): generally quiet but furthest from central London — allow extra transfer time getting there.
Practical tips
About this information
This knowledge page is based on official airport websites, transport authority data, and editorial research. Information is reviewed periodically but may not reflect real-time conditions. Always check with your airline and the official airport website before travelling.
Last reviewed: July 2026