Cheap flights from Johannesburg to London from R5 125

The cheapest month to fly to London Heathrow Airport from Johannesburg is in November. Flight prices, which tend to average around R11 223, are often lower during this time because this is during the off-season. If you don’t want to visit London Heathrow Airport in November, then you should wait until October to fly from Johannesburg, when ticket prices are also cheap, with an average price of R12 212.

The cheapest day to depart on your flight to London Heathrow Airport is on a Sunday when prices can be found for as low as R15 086. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around R16 110.

The cheapest time of day to fly to London Heathrow Airport is in the evening when flights can be purchased for as low as R15 360. Flights in the afternoon are often more expensive, with an average ticket price of R18 055.

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 R13 428 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 R12 673 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.

Brussels Airlines, RwandAir, and Qatar Airways are the most popular carriers operating from Johannesburg to London Heathrow

British Airways, Virgin Atlantic and Etihad Airways 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 48% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 15 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 208 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 4% of their flights experiencing any sort of delay.

The number of flights available between Johannesburg and London Heathrow Airport is 12 per day as of June 2026. The most frequent departure time is 20:00, with 100% of daily flights leaving in the evening.

As of June 2026, 84 flights take off from Johannesburg and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.