Cheap flights from London Heathrow Airport to Johannesburg from £346

The cheapest month to fly to Johannesburg from London Heathrow Airport is in February. Flight prices, which tend to average around £553, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Johannesburg from London Heathrow Airport during May instead. Flights to Johannesburg in May, while not as cheap as those in February, still average around £554.

On average, the least expensive day to fly to Johannesburg from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £702. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around £730. These prices are subject to change though, so be sure to set up a Price Alert for flights to Johannesburg.

The cheapest time of day to fly to Johannesburg is in the evening when flights can be purchased for as low as £709. Flights to Johannesburg are more costly in the afternoon, with an average ticket price of £732. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Johannesburg from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Johannesburg for around £659 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Johannesburg from London Heathrow Airport for as low as £608 on momondo.

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

Lufthansa and Brussels Airlines are the most popular carriers operating from London Heathrow to Johannesburg

British Airways, Virgin Atlantic and RwandAir are the top three most popular airlines that fly to Johannesburg from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Johannesburg. Keep in mind that there are 17 different airlines that fly to Johannesburg on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between London and Johannesburg have experienced a delay on any given week. The average delay length over the past 12 months has been 117 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday 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 7% of their flights experiencing any sort of delay.

As of February 2026, 10 flights take off from London Heathrow Airport and land in Johannesburg each day. The most common flight departure time for this route is 18:00, with 100% of daily flights taking off in the evening.

74 flights are operational weekly from London Heathrow Airport to Johannesburg as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.