Cheap flights from Athens to London from $149

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Athens, with most prices found around $306. If you aren’t able to travel during the month of February, then book flights to London Heathrow Airport from Athens during March instead. Flights to London Heathrow Airport in March, while not as cheap as those in February, still average around $327.

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $274. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Athens to London Heathrow Airport for around $634.

In the afternoon is the cheapest time of day to fly from Athens to London Heathrow Airport when you can find flight prices for as low as $460. Flying to London Heathrow Airport in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to London Heathrow Airport is at midday when prices are around $634.

Fly from Athens Eleftherios V. to London Heathrow for the best Athens Eleftherios V. - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Athens when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $453 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Athens for as low as $335 on momondo.

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

You could potentially save up to 21% on your flight if you consider stops on a Athens to London Heathrow Airport flight.

As of October 2026, prices for Athens to London Heathrow Airport flights are approximately 13% cheaper when compared to flights at the same time last year.

Historically, on average around 14% of flights between Athens and London have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Thursday 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.

As of October 2026, there are 5 flights per day flying from Athens to London Heathrow Airport. The most common time of day flights depart is 13:00, with 53% of flights taking off in the afternoon.

The number of flights available between Athens and London Heathrow Airport is 38 per week as of October 2026. The most frequent departure day is Wed, with 47% of weekly flights leaving on this day.