$1,386 Cheap Swiss International Air Lines flights Athens (ATH) to Washington (IAD)

Use the “Price (lowest to highest)” filter on Expedia to find cheap SWISS return flights from $673 from ATH to IAD. Affordable one-way tickets from $1,386 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

SWISS flights to Washington are often more affordable in the low-season months of January and February. Whether you’re searching for a return or one-way ticket, you could find a better deal then.

Search for SWISS flights from ATH to IAD about one month before you want to go. The cheapest time to book an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use our “Nonstop” filter when browsing for direct SWISS flights from ATH to IAD. You’ll also be able to compare other airlines servicing the same direct trip.

Sort your results by “Early Morning” and “Morning” to find the earliest departures from ATH to IAD. Setting off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

SWISS flights from Eleftherios Venizelos Airport (ATH) to Washington come in to Washington Dulles Intl. Airport (IAD). This is the main gateway here.

For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from ATH to IAD with SWISS. This carry-on has to weigh less than 17 lb and be no bigger than 22 inches x 21 inches x 5 inches. Going above these restrictions can mean additional charges, so read SWISS’s baggage allowance guidelines before you start packing.

SWISS makes traveling from ATH to IAD more comfortable with a 4-star airline rating and a rewarding loyalty program. You may even earn points with Swiss Miles & More. Don’t forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee will generally apply if you change or cancel your booking more than 24 hours after it’s been confirmed. To secure flexible plane tickets, select our “Changes included” or “No cancel fee” filter when you search for flights. For additional information on changing or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”