Cheap flights from London Heathrow Airport to Sofia from C$ 142

The cheapest month to fly to Sofia from London Heathrow Airport is in January. Flight prices, which tend to average around C$ 244, are often lower during this time because this is during the off-season. If you are unable to visit Sofia during the month of January, then departing from London Heathrow Airport during the month November is also very affordable. Most momondo users find prices during this month for around C$ 266.

The cheapest day to depart from London Heathrow Airport to Sofia is on a Saturday when prices can be found for as low as C$ 449. The most expensive day to fly to Sofia is Friday, with ticket prices averaging around C$ 453.

Our most recent data shows that the best time of day to fly to Sofia is at noon. Flights from London Heathrow Airport to Sofia during this time can be as low as C$ 193. Flights to Sofia are more costly in the morning, with an average ticket price of C$ 449. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Sofia for the best London Heathrow - Sofia flight prices

You are more likely to see cheaper flights to Sofia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around C$ 382 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from London Heathrow Airport for as low as C$ 332 on momondo.

There is only 1 cabin class available to choose from on London Heathrow Airport to Sofia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 8% on your flight if you consider stops on a London Heathrow Airport to Sofia flight.

As of September 2026, prices for London Heathrow Airport to Sofia flights are approximately 43% cheaper when compared to flights at the same time last year.

Historically, on average around 9% of flights between London and Sofia have experienced a delay on any given week. The average delay length over the past 12 months has been 91 minutes.

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

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

According to our data, Bulgaria Air has had the least delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.