Heathrow Airport Security Wait Times & LHR Queue Guide 2026
Heathrow Airport security wait times by hour, day and terminal. LHR queue estimates for Terminals 2, 3, 4 and 5, Fast Track pricing, peak times and the quietest hours to fly. The UK’s busiest airport now lets every passenger keep liquids and laptops in their bag following the January 2026 CT scanner completion.
Heathrow Airport Security Wait Times Today
The Heathrow Airport security wait times below show the typical LHR queue at each active terminal for this hour and day of week. London Heathrow (LHR/EGLL) is the UK’s busiest airport and Europe’s busiest by passenger volume, handling around 84 million passengers a year. Since the £1 billion CT scanner upgrade completed on 26 January 2026, Heathrow is the largest airport in the world operating next-generation CT security at 100 percent of its lanes. Actual security wait times at Heathrow vary by terminal, lane choice, school holiday period and operational conditions on the day.
How Long Is Security at Heathrow Airport?
Security wait times at Heathrow Airport typically sit in the 4 to 8 minute range outside of peak hours, based on current third-party queue data and the airport’s own performance reporting. The busiest window is 06:00 to 09:00 daily, when LHR security queues at Terminals 2 and 5 can reach 15 to 25 minutes in the standard lane during school holiday weekends. Terminals 3 and 4 also see a secondary afternoon peak between 14:00 and 18:00 driven by the long-haul departure wave. Outside these peaks, Heathrow security is usually clear in under 10 minutes across all four terminals.
Heathrow Airport Security Wait Times History and Improvements
Heathrow has transformed its security operation over the past three years. The headline change is the completion on 26 January 2026 of a £1 billion programme that replaced every passenger security lane across Terminals 2, 3, 4 and 5 with next-generation computed tomography (CT) scanners. Heathrow is now the largest airport in the world to operate CT screening at 100 percent of its security lanes, according to the airport’s official announcement.
Three changes drove the improvement. First, the airport-wide rollout of CT scanners, which produce high-resolution 3D images of cabin baggage, letting security officers assess bags without passengers unpacking. Second, regulatory approval from the UK Department for Transport to raise the liquid limit to 2 litres per container and drop the clear-bag requirement, announced on 23 January 2026. Third, operational changes including better lane management, increased staffing at peak windows and the Fast Track Security relaunch to spread standard-lane load.
Heathrow Airport Security Wait Times by Terminal
Heathrow operates four active passenger terminals: Terminal 2 (Queen’s Terminal, Star Alliance), Terminal 3 (Virgin Atlantic, Emirates, Delta, oneworld long-haul), Terminal 4 (SkyTeam plus selected independents) and Terminal 5 (British Airways main hub, Iberia). Terminal 1 closed to passengers in 2015. Each active terminal has its own dedicated security hall with different lane counts, different peak-hour patterns and different typical LHR queue times. All four are now fitted with CT scanners and operate the 2-litre liquid rule.
Heathrow Airport Terminal 2 Security
Under 5 minutes for most passengers outside peak. During the 06:00 to 09:00 morning wave, expect 10 to 20 minutes in the standard lane, pushing higher on school holiday weekends.
Terminal 2 is Heathrow’s Star Alliance home and was the first terminal to fully implement the CT scanner rollout. Its compact, logical layout and modern security hall give it one of the fastest per-passenger screening operations at LHR. Fast Track peak windows here are 06:00 to 09:00 and 18:00 to 21:00.
Heathrow Airport Terminal 3 Security
4 to 8 minutes off-peak, rising to 15 to 25 minutes during the heaviest windows. T3 has the widest peak band of any Heathrow terminal: morning wave 06:00 to 09:00, long-haul afternoon wave 14:00 to 18:00, and an evening wave 18:00 to 21:00.
Terminal 3 is connected to Terminal 2 by a pedestrian underpass and shares Heathrow Central station. Its long operating day and mix of short-haul, long-haul and cross-alliance traffic make it the busiest sustained-peak terminal at LHR. Fast Track peak windows here run from 06:00 to 09:00 and from 14:00 to 21:00.
Heathrow Airport Terminal 4 Security
5 to 10 minutes typical, with peak waits of 15 to 25 minutes during afternoon long-haul departures. Morning peak 06:00 to 09:00 and an extended afternoon peak 12:00 to 18:00 driven by SkyTeam and Middle East carrier banks.
Terminal 4 is connected to the central terminal area by the free Elizabeth line and Heathrow Express inter-terminal transfer service. It has the longest sustained daily peak of any LHR terminal, with Fast Track peak windows running from 06:00 to 09:00 and 12:00 to 21:00.
Heathrow Airport Terminal 5 Security
Under 5 minutes off-peak. Morning wave 06:00 to 09:00 is the heaviest period, when BA’s concentrated short-haul departure bank pushes standard-lane waits to 10 to 20 minutes. Afternoon and evening are usually calm.
Terminal 5 is the UK’s largest free-standing building and serves as the British Airways main base. It operates two separate security halls (North and South Security) to spread load, and has satellite concourses T5B and T5C reached by internal transit train. Fast Track peak windows here are just 06:00 to 09:00, the most compressed peak pattern at LHR.
Heathrow Airport Security Peak Hours and Best Times to Fly
The single heaviest window for Heathrow Airport security wait times is 06:00 to 09:00 daily, the morning departure wave across all four terminals. Terminals 3 and 4 see a second sustained peak from 14:00 to 18:00 as the long-haul afternoon wave builds, and T3 and T4 remain busy into the evening until around 21:00. Weekends, Friday afternoons and Sunday mornings consistently run busier than midweek. School holiday periods, and especially July, August and December, can add 30 to 50 percent to typical LHR queue times.
The quietest windows for Heathrow Airport security are 09:00 to 11:00 and 13:00 to 14:00 on Tuesday, Wednesday and Thursday. If your flight time is flexible, a midweek midday or late-evening departure will reliably move you through LHR security in under 5 minutes even without Fast Track.
| Time of Day | Typical LHR Security Wait | Status |
|---|---|---|
| 05:00 to 06:00 | Under 5 min (building) | Quiet |
| 06:00 to 09:00 | 10 to 25 min (longer in school holidays) | Peak |
| 09:00 to 11:00 | 4 to 8 min | Quiet |
| 11:00 to 13:00 | 5 to 10 min | Moderate |
| 13:00 to 14:00 | Under 5 min | Quiet |
| 14:00 to 18:00 | 8 to 20 min (T3 and T4 long-haul wave) | Peak |
| 18:00 to 21:00 | 6 to 15 min | Moderate |
| 21:00 to 04:59 | Under 5 min | Quiet |
Heathrow Airport Fast Track Security
Heathrow Fast Track Security is a paid express lane that lets you bypass the standard LHR security queue at all four terminals. Prices start from £12.99 per person when pre-booked online through heathrow.com, with hourly windows available from 06:00 to 21:00. Fast Track is the UK equivalent of US programmes like TSA PreCheck or CLEAR, but purchased per trip rather than as a membership. Heathrow Express Business First ticket holders, eligible frequent flyers and passengers in premium cabins often get Fast Track included with their ticket.
Recommended Arrival Times at Heathrow Airport
Heathrow’s official guidance is to arrive at least 3 hours before long-haul international departures and at least 2 hours before short-haul European flights. In practice, the right buffer for LHR security depends on your terminal, destination, and the time of day you are flying. During school holidays and the morning peak, add 30 to 45 minutes. Remember that check-in closes 60 minutes before long-haul and 45 minutes before short-haul, with the gate typically closing 35 minutes before departure.
When Should I Leave for Heathrow Airport? Calculator
Enter your flight details below to get a recommended arrival time at Heathrow Airport. The calculator factors the typical LHR security wait at your departure hour, walking time to your gate, your airline’s gate close, and a safety buffer.
Tips to Beat Heathrow Airport Security Queues
Beyond timing your arrival at Heathrow, a handful of small choices can shave several minutes off your LHR security wait at the checkpoint.
- Check in online and use a mobile boarding pass. Skip the bag drop queue entirely if you are travelling with cabin baggage only.
- Wear easy-to-remove footwear and minimal metal accessories. Speeds up the body-screening step regardless of which LHR lane you use. You still need to remove coats, belts with metal buckles and large accessories.
- Take advantage of the 2-litre liquid allowance. Since January 2026 you can carry containers up to 2 litres through every Heathrow lane with no clear-bag requirement. Pack liquids normally inside your bag.
- Empty vacuum flasks before security. CT scanners cannot see through the double insulation of thermos flasks, so staff will ask you to empty them.
- Use e-Gates on arrival. UK, EEA and eligible biometric passport holders can use Heathrow’s e-Gates free of charge, typically clearing passport control in under 10 minutes.
- Pre-book Heathrow Fast Track online if travelling at peak times. Walk-up availability is not guaranteed and Fast Track slots can sell out on school holiday weekends.
- Avoid 06:00 to 09:00 departures during school holidays if your schedule is flexible. A 10:00 or 11:00 departure often costs roughly the same and clears security in under 5 minutes.
- At Terminal 5, allow extra time for satellites B and C. Your gate is only announced about an hour before departure, and reaching T5B or T5C requires an internal transit train.
Heathrow Airport Terminals and Layout
Heathrow is the busiest airport in the United Kingdom and the busiest in Europe by passenger volume, handling around 84 million passengers a year. It sits 14 miles west of central London, with the four active terminals split into two clusters. Terminals 2 and 3 share the central terminal area and are connected by a pedestrian underpass, sharing Heathrow Central station (Piccadilly line, Elizabeth line and the Heathrow Express). Terminals 4 and 5 each have their own dedicated station; Terminal 4 is served by the Elizabeth line and Terminal 5 by the Heathrow Express and Piccadilly line.
Following the 2015 closure of Terminal 1 and the ongoing consolidation of airlines into the four remaining terminals, LHR operates a clear alliance-based layout. Terminal 2 is the Star Alliance home (Lufthansa, United, Singapore, ANA, Air Canada). Terminal 3 hosts Virgin Atlantic, Emirates, Delta and most of the oneworld long-haul carriers. Terminal 4 is the SkyTeam base (Air France, KLM, Korean, China Eastern) plus Etihad, Qatar, Gulf Air and Malaysia Airlines. Terminal 5 is the British Airways main hub and home to Iberia. For the full layout, see our Heathrow Airport map and terminal guide.
Heathrow Airport Security FAQ
How long is security at Heathrow Airport in 2026?
Most passengers clear Heathrow security in under 10 minutes outside of peak hours, with typical waits in the 4 to 8 minute range across the four terminals. Early-morning peaks between 06:00 and 09:00 can push standard-lane waits to 15 to 25 minutes, and the afternoon long-haul wave at Terminals 3 and 4 can add another busy window between 14:00 and 18:00. Following the January 2026 completion of the £1 billion CT scanner rollout, very long waits are now rare outside of school holiday weekends.
Which Heathrow terminal has the fastest security?
Terminal 2 (the Queen’s Terminal) and Terminal 5 generally move fastest per passenger thanks to modern layouts, plentiful lanes and the full CT scanner rollout. Terminal 2 serves Star Alliance carriers and is particularly efficient outside the morning peak. Terminal 5, home of British Airways, has one of the largest security operations in the UK with North and South Security halls to spread load. Terminals 3 and 4 handle heavy long-haul and SkyTeam traffic and can run slower at afternoon peaks.
What is Heathrow Fast Track and how much does it cost?
Fast Track Security is a paid express lane available at all four Heathrow terminals. Prices start from £12.99 per person when pre-booked online through heathrow.com. Hourly booking windows run from 06:00 to 21:00. A separate Fast Track Arrivals Passport Control is available at £25 per person off-peak and £35 at peak times. Premium cabin passengers, eligible frequent flyers, and Heathrow Express Business First ticket holders often get Fast Track Security included.
What time should I arrive at Heathrow Airport?
Heathrow recommends arriving at least 3 hours before long-haul international departures and at least 2 hours before short-haul European flights. During school holidays, peak summer weekends, or the 06:00 to 09:00 morning wave, add 30 to 45 minutes. Check-in typically closes 60 minutes before long-haul and 45 minutes before short-haul flights, and gate close is usually 35 minutes before departure. Always confirm times on your airline’s booking confirmation.
When is Heathrow security busiest?
The busiest window is 06:00 to 09:00 daily, which is the primary morning departure wave across all four terminals. Terminals 3 and 4 see a second peak between 14:00 and 18:00 as the long-haul afternoon wave builds, and Terminal 3 stays busy into the evening until around 21:00. Weekends, particularly Friday afternoons and Sunday mornings, are heavier than midweek. July, August and December are the busiest months at LHR, when wait times can run 30 to 50 percent longer than average.
Can I bring more than 100ml of liquids through Heathrow security?
Yes. Following the completion of the £1 billion CT scanner rollout on 26 January 2026, every security lane at Heathrow Terminals 2, 3, 4 and 5 now accepts liquids, gels and aerosols in containers up to 2 litres. You no longer need to place liquids in a clear plastic bag, and laptops and tablets can stay inside your cabin bag. Heathrow became the world’s largest airport to operate this technology across all security lanes. Note that return-leg airports may still enforce the older 100ml rule.
Does Heathrow have anything like TSA PreCheck or CLEAR?
No. Heathrow is in the United Kingdom, so US programmes such as TSA PreCheck and CLEAR do not apply. The UK equivalent is paid Fast Track Security, available at all four Heathrow terminals from £12.99 per person. A separate free Registered Traveller programme exists for eligible nationalities passing through UK passport control on arrival, but it does not affect departure security queues. The free UK e-Gates cover passport control for UK, EEA and selected biometric passport holders on arrival.
Which Heathrow terminal does my airline use?
Terminal 2 is the Star Alliance home (Lufthansa, United, Air Canada, Singapore Airlines, ANA, Aer Lingus, Turkish Airlines, Swiss, TAP and others). Terminal 3 hosts Virgin Atlantic, Emirates, Delta, American Airlines, Cathay Pacific, Japan Airlines, Qantas, and selected British Airways routes. Terminal 4 is the SkyTeam base (Air France, KLM, Korean Air, China Eastern, Saudia) plus Etihad, Gulf Air, Qatar Airways and Malaysia Airlines. Terminal 5 is the British Airways main hub (with Iberia). Some BA routes moved from T5 to T3 on 29 March 2026, so always confirm your terminal with the airline.