Cheap flights from London from £18

Recently, our users have seen British Airways, American Airlines, and Air Canada offering the cheapest flights from London. British Airways has flights from London to Jakarta from £5, American Airlines has flights from London to Sao Paulo starting at £10, and Air Canada are operating flights from London to Toronto for £10.

Currently, a £15 flight to Alicante is the cheapest flight momondo users have found from London. This price will vary depending on various factors such as the airline and flight dates. You can expect the price to be, on average, around £106 for a flight from London to Alicante.

The most frequent flight destinations are as follows: New York has 167 flights a day on average from London. New York John F Kennedy Intl Airport has an average of 117 flights daily. Amsterdam operates an average of 95 flights per day out of London.

Airlines operating out of London include, amongst others, British Airways, Ryanair, and easyJet. You can view other alternatives by clicking on the search button at the top of the page.

If you are looking for a cheap first-class flight, consider flights to Mexico City, for which the starting price of a first-class seat can be as low as £2,775.

Prices for flights from London refresh daily.

As of September 2025, there are 151 operators available to choose from for flights from London.

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London.

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.