Typical prices
Ranges reflect typical fares outside holiday peaks; live prices in the comparison.
Good to know
2–5 months out; last-minute only pays off outside holidays.
Our price index checks every fare against the route's usual market price.
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Quick facts
| Cheapest months | February |
| Typical prices |
Routes from Swiss airports
From Switzerland, London is spread across several airports, and that changes both fare logic and transfer time. British Airways usually points Swiss travellers to Heathrow or London City, while low-cost options from Basel or Geneva often land at Gatwick, Luton or Stansted. Heathrow works well for Paddington, South Kensington and Hammersmith via the Elizabeth line or Piccadilly line. Gatwick suits Victoria and south London. Stansted and Luton can look cheap at first, but the rail add-on into central London can erase the saving.
Departure days and baggage
The ticket headline matters less in London than the full door-to-door cost. On short routes, the cheapest fare family often includes only a small cabin bag, and London airport rules make last-minute upgrades expensive. If you need a standard trolley case, compare the bundled fare before booking. Departure day also changes value: early-morning flights can widen your usable first day, but they may force an airport hotel or a train before dawn in Switzerland. Late-evening arrivals into Stansted or Luton can mean slower onward transport and fewer rail frequencies. For a weekend break, Thursday out and Sunday back is often crowded because business and leisure demand overlap.
When to book flights
For London, the cheap months by experience are November and January to March, when leisure demand drops outside Christmas and half-term peaks. That does not mean every fare is low: school-holiday weeks in February can still push up demand on Friday and Sunday departures. Booking too early can leave you looking at fares before airlines open competitive inventory, while booking too late limits the cheapest hand-baggage fares. A practical approach is to watch exact airport pairs rather than just 'London', because Zürich-Heathrow behaves differently from Basel-Stansted. If your dates are fixed, compare total cost across all five main London airports, including rail transfer and bag fees.
What we measured ourselves
| Hotel per night (double room) | |
| Flight return |
Basis: 882 readings of our own between 2026-08-23 and 2026-10-10. We query prices for London ourselves and store every value – which is why you see ranges here, not teaser fares.
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You can unsubscribe with one click.FAQ
How much is a flight to London?
Cheapest window: February. Booking 2–5 months ahead usually wins.
When is it cheapest to fly?
February. Tuesday/Wednesday departures shave off a bit more.
Does Reisedrop include bag fees?
Yes – basic fares often look cheaper than they are. We price bags in on request.
Which London airport is easiest for central London?
Heathrow is usually the simplest all-round option because it connects directly by Elizabeth line and Underground. London City is efficient for the City and Canary Wharf. Gatwick is straightforward for Victoria. Stansted and Luton often need longer rail transfers, which can change the real bargain.
Are cheap London flights usually non-refundable?
On short-haul routes, the lowest fares are commonly restrictive. That often means no refund, paid changes and stricter baggage rules. Before paying, check whether a slightly higher fare includes cabin baggage or change flexibility, because that can cost less than adding extras later.