Cheap flights from London Heathrow Airport to Greek islands from £73

The cheapest month to fly to Greek islands from London Heathrow Airport is in January. Flight prices, which tend to average around £176, are often lower during this time because this is during the off-season. If you aren’t able to travel to Greek islands during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £219.

The cheapest day to depart on your flight to Greek islands is on a Monday when prices can be found for as low as £353. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Greek islands is Tuesday, with ticket prices averaging around £498.

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

You are more likely to see cheaper flights to Greek islands from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Greek islands for around £297 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Greek islands from London Heathrow Airport for as low as £277 on momondo.

There are 3 cabin classes available to choose from on London Heathrow Airport to Greek islands 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 Heathrow Airport to Greek islands.

British Airways, SWISS, and Aer Lingus are the most popular carriers operating from London Heathrow to Greek islands

British Airways, Aegean Airlines and easyJet are the top three most popular airlines that fly to Greek islands 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 Greek islands. Keep in mind that there are 9 different airlines that fly to Greek islands on a routine basis, so you have a few additional options to choose from.

1 flights are operational daily from London Heathrow Airport to Greek islands as of September 2026. The most popular departure time for this route is 11:00, with 83% of flights per day taking off at midday.

The number of flights available between London Heathrow Airport and Greek islands is 13 per week as of September 2026. The most frequent departure day is Mon, with 92% of weekly flights leaving on this day.