Updated: 23 April 2026 · We update this guide regularly – security queues and check-in desk opening times can vary depending on season and airport.
Arriving too early at the airport means hours of waiting – arriving too late means frantic rushing and in the worst case, a missed flight. We'll show you the optimal arrival time for each destination, airport and airline. Plus: 5 practical tips for an even more relaxed journey through check-in and security.
How early you should arrive at the airport before departure
Check-in often online, short security, no passport control
Standard check-in, security, boarding – buffer for unexpected delays
Passport and security checks, customs, long queues during peak times
Important: These times are guidelines. During summer holidays, at weekends and during major events (fairs, sporting events), you should arrive 30–60 minutes earlier at the airport.
How early at major UK airports?
UK airports have different throughput capacities and waiting times. Here's our overview of the five busiest locations:
| Airport | Domestic / EU | Long-haul | Special features |
|---|---|---|---|
| London Heathrow (LHR) | 2 hrs | 3 hrs | World's busiest, long security queues during peak times |
| London Gatwick (LGW) | 2 hrs | 3 hrs | CT scanners available, security often faster |
| Manchester (MAN) | 90 min | 2.5 hrs | Usually relaxed, can get busy during school holidays |
| Edinburgh (EDI) | 90 min | 2.5 hrs | Compact airport, short distances |
| Birmingham (BHX) | 2 hrs | 2.5 hrs | Large airport, security busy during peak hours |
London Heathrow (LHR) – UK's busiest hub
Heathrow Airport is the busiest in the UK with 80+ million passengers annually. Queue times can be correspondingly long. Plan for 2 hours for European flights, 3 hours for long-haul. On peak days (Friday and Sunday evenings, start of holidays) allow an extra 30 minutes. Advantage: Heathrow has five terminals with good connections and new CT scanners at many security lanes, which also allow liquids over 100ml.
London Gatwick (LGW) – efficiency over queues
Gatwick is considered one of the most efficient airports in the UK. CT scanners are widely deployed – making security checks much easier. 90 minutes to 2 hours before domestic/EU flights, 3 hours for long-haul is sufficient.
Manchester (MAN) – compact but traffic-prone
Manchester is manageable: it's rarely more than 10 minutes' walk from security to the gate. Still plan 90 minutes (EU) or 2.5 hours (long-haul). Main issue: getting there by car from the motorway network – rush hour traffic or roadworks can disrupt your timing.
Edinburgh (EDI) – fast through security
Edinburgh
