$1,316 Cheap Flights from Washington (IAD) to Ermoupolis (JSY)

View $1,316 flight on Mon, May 25, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Ermoupolis (JSY-Syros Island National)

Cheap Flights from Washington to Ermoupolis (IAD-JSY)

Prices were available within the past 7 days and start at $1,316 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alternative airports near Ermoupoli

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Mykonos Island National JMK. Cheapest option available. Average driving time to city center is 5 hours 54 minutes. Flights from $1,315
JMK
Mykonos Island National
Cheapest
Average driving time to city center5 h 54 min
Flights from $1,315
Flights from Washington (IAD) to Ermoupolis (JSY)
Origin airport
Washington Dulles Intl.
Destination airport
Syros Island National
Distance
5220 mi

Washington to Ermoupolis Flights

The cheapest times to fly from Washington to Ermoupolis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Ermoupolis are during the month of . You can find some of the cheapest flights from Washington to Ermoupolis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Ermoupolis

Sunday is one of the best days to book for cheap flights from Washington to Ermoupolis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Ermoupolis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Ermoupolis in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,316 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Ermoupolis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Ermoupolis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY) cost?
Snag a cheap one-way flight from $1,316 or cheap return flight from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY)?
Flying in is a great way to save, as it's the cheapest month for flights between IAD and JSY. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from IAD to JSY. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to JSY?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY)?
Select a flight from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY) last-minute?
Holding off until just before your departure to book a ticket from IAD to JSY often results in higher prices. While it's possible to find some last-minute offers, there's no guarantee. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book an IAD to JSY flight and hotel package?
Securing an IAD to JSY flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Syros Island National Airport (JSY)?
If you reserved your IAD to JSY flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.