Cheap flights from London Heathrow Airport to Sofia from C$ 199

The cheapest month to fly to Sofia from London Heathrow Airport is in January. Flight prices, which tend to average around C$ 238, 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$ 260.

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$ 380 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$ 360 on momondo.

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Sofia.

As of May 2026, prices for London Heathrow Airport to Sofia flights are approximately 4% more expensive when compared to flights at the same time last year.

Historically, on average around 13% 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 116 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.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday 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 10% of their flights experiencing any sort of delay.