London City Airport is built around speed. It markets around 20 minutes from the front door to the departure lounge for hand-baggage passengers who have checked in online, and that claim holds up well in practice thanks to a single compact terminal, a DLR station built into the building, and generally short security queues. Checked August 2026.
Why London City is built for speed
Unlike the sprawling hubs elsewhere in London, London City has a single, compact terminal spread over two storeys with 15 gates in total. Departures and arrivals share the same building, so there are no inter-terminal transfers to slow you down, and no long airside walk between security and your gate. The airport opened in 1987 as a business-traveller airport, and its whole layout, from check-in to boarding, is designed around getting you through quickly rather than around retail space.
From the DLR platform to check-in
The Docklands Light Railway station is built directly into the terminal, on the Woolwich Arsenal branch. From the platform it is roughly a 100 metre, under-two-minute walk to check-in, and the same distance in reverse from the baggage hall back to the platform. The whole route is step-free, with lifts between the station entrance and the platforms. This is the shortest airport-to-train transfer of any London airport, and it is a big part of why the DLR, rather than a taxi, is usually the fastest way to reach the airport in the first place. There's more detail on the public transport page.
Check-in and gate timings
| Milestone | Cut-off before departure |
|---|---|
| Check-in closes | 30 minutes |
| Security recommended by | 20 minutes |
| Gate closes | 15 minutes |
| Typical walk from security to gate | around 2 minutes |
Because the whole terminal sits under one roof, the walk from the security exit to almost any gate is short, which is why the airport can hold its check-in-to-gate cut-offs this tight and still expect passengers to make it comfortably.
How long security actually takes
Security at London City is usually quick, often clearing in under 10 to 15 minutes outside the busiest periods. Since 26 January 2026, the airport has used CT (computed tomography) scanners across the security hall, which scrapped the old 100ml liquids limit: you can now carry containers up to 2 litres and keep liquids, laptops and tablets in your bag rather than pulling them out for a separate tray. That alone removes one of the most time-consuming steps of the old process. There's a full breakdown of what changed on the liquid rules page.
If you want to guarantee a fast run through security, a dedicated Fast Track lane is available and can be booked in advance. Third-party listings put the price at around £12.50 per person, though you should confirm the current official price when you book. More on Fast Track and the airport's other facilities is on the facilities page.
How early should you actually arrive
General short-haul guidance is to arrive around 60 to 90 minutes before your flight. Wider guidance suggests being a little more generous, around 90 minutes before a domestic flight and at least 2 hours before an international one, or as little as 45 to 60 minutes if you have booked Fast Track, so check current advice on the airport's own website before you travel. Either way, the confirmed check-in and gate cut-offs above mean there is little margin for arriving late, even at an airport built for speed.
The trade-off: no lounge, no left luggage
Speed comes with a couple of gaps. London City has no operational passenger lounge in the main terminal, so if you're used to relaxing airside before a flight elsewhere, that isn't currently an option here; a new lounge is under construction and due to open around early 2027. There is also no airport-run left luggage desk or lockers on site, unusual for a London airport, so anyone needing to store bags has to use a third-party service nearby such as LuggageHero. Neither of these slows down the core check-in-to-gate journey, but both are worth knowing about if your plans depend on them.
Weekend closure catches people out
One more timing quirk is worth building into your planning. Noise rules require London City to take a full 24-hour respite each week, so the airport is closed from around 12:30 on Saturday to around 12:30 on Sunday. That means there are no Saturday-afternoon flights at all, whatever time you arrive.
Frequently asked questions
How early should I arrive at London City Airport? Around 60 to 90 minutes before a short-haul flight is the general guidance. Some sources suggest up to 90 minutes for domestic flights, 2 hours for international ones, or 45 to 60 minutes with Fast Track booked, so confirm current advice on the airport's website.
Is the 20-minute front-door-to-gate claim realistic? For hand-baggage passengers who have already checked in online, yes. The DLR walk, check-in and security are all short, and the gate is typically only a couple of minutes' walk from the security exit.
Is security really that quick at London City? Usually, often under 10 to 15 minutes. New CT scanners installed by January 2026 mean many passengers can keep liquids and laptops in their bag, which speeds the process up further.
Does London City Airport have Fast Track security? Yes, a dedicated lane bookable in advance. Third-party listings put it at around £12.50 per person, so confirm the current official price when you book.
Why is London City Airport sometimes closed on a Saturday? Noise rules require a 24-hour respite each week, so the airport shuts from around 12:30 on Saturday to around 12:30 on Sunday, meaning there are no Saturday-afternoon flights.
More: Overview, Facilities, FAQs.
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Last verified August 2026 by the London City Airport Guide editorial team. Prices and timetables change, so confirm the specifics on the official London City Airport website before you travel.