R5 301 Cheap flights to London Heathrow Airport

Travelling from most locations, it is best to book your flight to London Heathrow Airport during the month of February for the best deal, although there are other times of the year which offer great deals as well.

From most locations, to find the best deals on airfare, our data shows that users booking 58 days before flying found the cheapest flight to London Heathrow Airport.

From most locations, the cheapest flights to London Heathrow Airport are found on a Sunday. Booking a Saturday departure is usually the most expensive.

In general, when looking for the cheapest flight to London Heathrow Airport, our data indicates that Morning flights are the most cost-effective. Afternoon flights tend to be the most expensive.

London City Airport, London Gatwick Airport, London Luton Airport, London Stansted Airport or London Southend Airport can be an alternative airport used for travel to London.

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in London is London Luton Airport where the average price is R1 918. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

In the past two weeks, users have booked deals to London for R866/person, which is 83% cheaper than the average flight to London. To find the cheapest price to London from your area, use momondo’s Airport-to-Airport Pricing Tool.

There are 16 airlines that fly to London Heathrow Airport on a routine basis, but British Airways, Virgin Atlantic and SWISS happen to be the most popular among our users. In the past year, 46% of those who searched for flights to London Heathrow Airport looked to travel with British Airways, making this airline the top choice among momondo travellers.

Prices for flights to London Heathrow Airport are updated daily.

As of August 2025, there are 18 operators available to choose from for flights to London Heathrow Airport.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to London Heathrow Airport.

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.