Cheap Flights from Siena (SAY) to Washington (IAD)

Popular airlines from Ampugnano Airport (SAY) to Washington Dulles Intl. Airport (IAD)

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Frequently asked questions

How much does a flight from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD) cost?
Grab a cheap one-way flight or cheap return flight from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD)?
Planning your trip for may help you find better deals, as it's the cheapest month for flights between SAY and IAD. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SAY to IAD flight.
How many flights per day from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD)?
Direct flights from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAY to IAD?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change 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 Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until right before your break to book your flight from SAY to IAD often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book a SAY to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a SAY to IAD flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of hotels, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Siena (SAY-Ampugnano) to Washington Dulles Intl. Airport (IAD)?
In most cases, you can cancel or modify your SAY to IAD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Origin airport
Ampugnano
Destination airport
Washington Dulles Intl.
Distance
4398 mi

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Siena to Washington Flights

The cheapest times to fly from Siena to Washington

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 Siena to Washington are during the month of . You can find some of the cheapest flights from Siena to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Siena to Washington

Sunday is one of the best days to book for cheap flights from Siena to Washington: 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 Siena to Washington

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 Siena to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Siena to Washington 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 Siena to Washington 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.

 

Siena to Washington Flights

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*Available to One Key members.