Cheap flights from London to Sofia from C$ 142

The cheapest month to fly to Sofia from London is in November. Flight prices, which tend to average around C$ 135, are often lower during this time because this is during the off-season. If you are unable to visit Sofia during the month of November, then departing from London during the month January is also very affordable. Most momondo users find prices during this month for around C$ 151.

The cheapest day to depart from London 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 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 Stansted to Sofia for the best London - Sofia flight prices

You are more likely to see cheaper flights to Sofia from London 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 for as low as C$ 332 on momondo.

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

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

As of September 2026, prices for London to Sofia flights are approximately 7% cheaper when compared to flights at the same time last year.

Historically, on average around 17% 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 108 minutes.

Generally, flights departing in the morning 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. Monday 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 9% of their flights experiencing any sort of delay.