$1,020 Cheap Swiss International Air Lines flights Dublin (DUB) to Washington (IAD)

Finding cheap one-way SWISS flights from DUB to IAD from $1,020 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $599 for your next exciting adventure.**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 cheaper in the quieter months of January and February. Whether you’re in search of a return or one-way ticket, you could score a better deal then.

Start your search for SWISS flights from DUB to IAD about one month before you want to go. The cheapest time to reserve 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. Regardless of itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers 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.

To see if there’s a direct trip from DUB to IAD with SWISS or other airlines, check the “Nonstop” box when browsing for flights.

Sort your results by “Morning” and “Early Morning” to see the earliest flights from DUB to IAD. Setting off early means you’re 20% less likely to experience cancellations.**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.

Washington Dulles Intl. Airport (IAD) is the primary Washington gateway for SWISS flights from Dublin Airport (DUB).

For checked luggage, passengers can bring 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 DUB to IAD with SWISS. This carry-on should weigh less than 17 lb and be no larger than 22 inches x 21 inches x 5 inches. Exceeding these restrictions can mean extra charges, so check SWISS’s baggage allowance guidelines before you begin packing.

Traveling from DUB to IAD with SWISS comes with plenty of perks, such as a rewarding loyalty program and a 4-star airline rating. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s in addition to the Swiss Miles & More points you can earn with SWISS.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making your booking, but your airline may add a charge after that time. For more details about altering your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to make changes without being charged, check the “Changes included” and “No cancel fee” filters when organizing your next trip.