As we have had to cancel our initial visit in May when we intended to fly via Athens ,which included a 3 Day sightseeing stay, we have now been looking to do this route in September. Return flights from Skiathos to Manchester costing at £400 each one way, so just out of curiosity we looking at doing the trip in reverse, flying into Skiathos and returning via Athens with a 3 day stopover, amazed that this route gives a 40%+ cost saving. Thought I would share as it may possibly benefit anyone planning to include a visit to Athens in their holiday plans.
If there was one thing I missed about my trip in 2019 it was the itinerary couldn't fit in longer in Athens, would have liked to have seen something of the city. On my to do list when I eventually give up work and have more time to travel.