Cheap flights from London Heathrow Airport to Johannesburg from C$ 685

The cheapest month to fly to Johannesburg from London Heathrow Airport is in May. Flight prices, which tend to average around C$ 1,037, are often lower during this time because this is during the off-season. The month of June is another great option to travel to Johannesburg, with average flight prices from London Heathrow Airport averaging around C$ 1,081.

Our data shows that Saturday is the least expensive day to fly to Johannesburg. Tickets to fly out on this day can be as low as C$ 1,106. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Johannesburg on Monday is C$ 1,929.

The cheapest time of day to fly to Johannesburg is in the afternoon when flights can be purchased for as low as C$ 1,375. Flights to Johannesburg are more costly in the evening, with an average ticket price of C$ 1,411. Departure times in the evening 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 C$ 1,245 when searching weeks out. 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 C$ 1,173 on momondo.

There is only 1 cabin class 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.

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 121 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. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic has had the least delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Johannesburg is 10 per day as of March 2026. The most frequent departure time is 6:00p.m., with 100% of daily flights leaving in the evening.

The number of flights available between London Heathrow Airport and Johannesburg is 74 per week as of March 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.