Cheap flights from Johannesburg to London from £237

In general, November is the cheapest month to fly from Johannesburg to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £555. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Johannesburg averaging around £557.

On average, the least expensive day to fly to London Heathrow Airport from Johannesburg is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £646. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £691.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Johannesburg to London Heathrow Airport in the afternoon for as low as £499. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £663 on average. Flights to London Heathrow Airport from Johannesburg in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Johannesburg OR Tambo to London Heathrow for the best Johannesburg - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Johannesburg when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £624 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Johannesburg for as low as £603 on momondo.

There are 4 cabin classes available to choose from on Johannesburg to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

RwandAir, British Airways, and SWISS are the most popular carriers operating from Johannesburg to London Heathrow

British Airways, Virgin Atlantic and RwandAir are the top three most popular airlines that fly to London Heathrow Airport from Johannesburg according to our data. British Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 13 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 5% of flights between Johannesburg and London have experienced a delay on any given week. The average delay length over the past 12 months has been 173 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

As of September 2026, 10 flights take off from Johannesburg and land in London Heathrow Airport each day. The most common flight departure time for this route is 20:00, with 100% of daily flights taking off in the evening.

As of September 2026, 75 flights take off from Johannesburg and land in London Heathrow Airport each week. The most common flight departure day for this route is Thu, with 16% of weekly flights taking off on this day.