$425 Cheap Flights from Cagliari (CAG) to Washington (DCA)

View $425 flight on Fri, Jun 5, 2026Opens in a new window

Popular airlines from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)

Cheap Flights from Cagliari to Washington (CAG-DCA)

Prices were available within the past 7 days and start at $425 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA) cost?
Grab a cheap one-way flight from $425 or cheap return flight from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA) 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 Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)?
Planning your getaway for can help you save, as it's the cheapest month for flights between CAG and DCA. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)?
To find the cheapest airline that'll fly you from CAG to DCA, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)?
You'll have to take a flight with a layover if you're traveling from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from CAG to DCA?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)?
Opt for a flight from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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 Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your trip to book your flight from CAG to DCA generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book a CAG to DCA flight and hotel package?
Compared with arranging flights and hotels separately, booking a CAG to DCA flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place takes the hassle out of travel planning. Just pick your flights and select from our wide range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Elmas Airport (CAG) to Ronald Reagan Washington National Airport (DCA)?
If you booked your CAG to DCA flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type 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, head to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Elmas
Destination airport
Ronald Reagan Washington National
Distance
4423 mi

Book with confidence

Book with confidence

Cagliari to Washington Flights

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

 

The best time to book a flight from Cagliari to Washington

Sunday is one of the best days to book for cheap flights from Cagliari 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 Cagliari 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 Cagliari to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $425 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 Cagliari 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 Cagliari 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.

 

Cagliari to Washington Flights

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*Available to One Key members.