Cheap flights from London Heathrow Airport to Thera from $119

The cheapest month to fly to Thera from London Heathrow Airport is in December. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you don’t want to visit Thera in December, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $261.

On average, the least expensive day to fly to Thera from London Heathrow Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $271. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $445. These prices are subject to change though, so be sure to set up a Price Alert for flights to Thera.

According to our data, the cheapest time of day to fly to Thera is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Thera in the afternoon for as low as $271. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $328.

Fly from London Heathrow to Thera Santorini for the best London Heathrow - Thera Santorini flight prices

You are more likely to see cheaper flights to Thera from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Thera for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thera from London Heathrow Airport for as low as $344 on momondo.

Historically, on average around 13% of flights between London and Thera have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

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

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

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Thera is 1 per day as of May 2026. The most frequent departure time is 8:00AM, with 100% of daily flights leaving at noon.

As of May 2026, there are 10 flights per week flying from London Heathrow Airport to Thera. The most common day of the week flights depart is Sat, with 30% of flights taking off on this day.