In terms of precipitation, rainfall in Athens ranges from 0.2 - 2.5 inches per month. December is typically the wettest month, when rainfall can reach 2.5 in. June is typically the driest time to visit Athens when rainfall is around 0.2 in.

If weather is an important factor for your trip to Athens, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

How far in advance should I book a flight from Islip to Athens?

Find a great deal and save up to 9% by booking at least 46 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Islip to Athens within the next two weeks, with the cheapest ticket starting at $701.

What is the cheapest month to fly from Islip to Athens?

April can be a great time to fly to Athens from Islip with a flight ticket averaging about $778. Cheapflights users have found deals in the month of April for as cheap as $317. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from ISP to ATH?

When flying from Islip to Athens, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Islip to Athens that include hotel bookings?

Yes. In addition to deals on Islip to Athens flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Islip to Athens?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Athens.

Can I find deals for business class flights from Islip to Athens?

Yes. Cheapflights offers flight deals from Islip to Athens by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,589+ Flights from Islip to Athens

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Islip to Athens with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to Athens

Popular in	December
Cheapest in	April
Average price	$809

Highest demand for flights based on searches. 5% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Islip to Athens

Cheapest flights from Islip to Athens
Explore the most affordable flight options available from Islip to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Fri 8/224:33 pmISP - ATH

2 stops23h 27mMultiple Airlines

Sun 8/247:00 amATH - ISP

2 stops20h 01mMultiple Airlines

Deal found 8/18

$6,711

Last-minute flights from Islip to Athens
Discover last-minute flight deals from Islip to Athens. Data last updated August 20, 2025 and is based on user searches.

Fri 8/224:33 pmISP - ATH

2 stops23h 27mMultiple Airlines

Sun 8/247:00 amATH - ISP

2 stops20h 01mMultiple Airlines

Deal found 8/18

$6,711