Cheap flights from London Heathrow Airport to Thera from £81

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. The month of February is another great option to travel to Thera, with average flight prices from London Heathrow Airport averaging around £195.

The cheapest day to depart on your flight to Thera is on a Wednesday when prices can be found for as low as £224. This is often the case because there is less demand to fly during this day of the week. Flights from London Heathrow Airport to Thera on a Saturday will generally be more expensive and average around £292. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Thera is in the afternoon when flights can be purchased for as low as £172. In the morning is when there is more demand to fly to Thera, so prices are often more expensive at around £294 per ticket.

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 £294 when searching weeks before you fly. 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 £256 on momondo.

There are 2 cabin classes available to choose from on London Heathrow Airport to Thera flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Vueling, Aegean Airlines, and Lufthansa are the most popular carriers operating from London Heathrow to Thera Santorini

British Airways, Aegean Airlines and Lufthansa are the top three most popular airlines that fly to Thera from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 76% of people opting to fly with this airline when travelling to Thera. Keep in mind that there are 6 different airlines that fly to Thera on a routine basis, so you have a few additional options to choose from.

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 90 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning 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. Friday has historically seen more delays on average compared to the rest of the week.

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

Paris (CDG) was the most common stop: 80% of momondo users choosing one-stop flights on this route connected there.

Flights via Athens (ATH) offer the lowest average return price of £128.

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 5h 50m.

Athens (ATH) has the shortest average stopover time for this route: 1h 28m.

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 08:00, with 100% of daily flights leaving at midday.

As of May 2026, there are 7 flights per week flying from London Heathrow Airport to Thera. The most common day of the week flights depart is Mon, with 43% of flights taking off on this day.