$508 Cheap Flights from Washington (DCA) to Cagliari (CAG)

View $508 flight on Tue, Oct 21, 2025Opens in a new window

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

Cheap Flights from Washington to Cagliari (DCA-CAG)

Prices were available within the past 7 days and start at $508 for one-way flights and $761 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$761 Roundtrip, found 7 hours ago
$761
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $761 found 7 hours ago
Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$804 Roundtrip, found 7 hours ago
$804
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $804 found 7 hours ago
Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$808 Roundtrip, found 7 hours ago
$808
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $808 found 7 hours ago
Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$811 Roundtrip, found 7 hours ago
$811
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $811 found 7 hours ago
Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$851 Roundtrip, found 7 hours ago
$851
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $851 found 7 hours ago
Air Canada
Sun, Apr 19 - Sat, May 9
DCA
Washington
CAG
Cagliari
$857 Roundtrip, found 7 hours ago
$857
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sun, Apr 19 from Washington to Cagliari, returning Sat, May 9, priced at $857 found 7 hours ago
United
Mon, Aug 10 - Mon, Aug 31
DCA
Washington
CAG
Cagliari
$861 Roundtrip, found 6 days ago
$861
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 10 from Washington to Cagliari, returning Mon, Aug 31, priced at $861 found 6 days ago
Air France
Mon, Oct 20 - Tue, Nov 4
DCA
Washington
CAG
Cagliari
$974 Roundtrip, found 4 days ago
$974
Roundtrip
found 4 days ago
Select Air France flight, departing Mon, Oct 20 from Washington to Cagliari, returning Tue, Nov 4, priced at $974 found 4 days ago
American Airlines
Wed, Mar 18 - Tue, Mar 31
DCA
Washington
CAG
Cagliari
$981 Roundtrip, found 4 days ago
$981
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Mar 18 from Washington to Cagliari, returning Tue, Mar 31, priced at $981 found 4 days ago
KLM
Mon, Nov 3 - Tue, Nov 18
DCA
Washington
CAG
Cagliari
$989 Roundtrip, found 4 days ago
$989
Roundtrip
found 4 days ago
Select KLM flight, departing Mon, Nov 3 from Washington to Cagliari, returning Tue, Nov 18, priced at $989 found 4 days ago

Alternative airports near Cagliari

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

Select flight to Elmas CAG. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $1,708
CAG
Elmas
CheapestClosest
Average driving time to city center9 min
Flights from $1,708

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG) cost?
Secure a cheap one-way flight from $508 or cheap return flight from $761 from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG) 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 Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG)?
The cheapest month to fly from DCA to CAG is April, when demand is low. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from DCA to CAG. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG) 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 click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to CAG?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG)?
To touch down at Elmas Airport (CAG) on schedule, pick a flight that leaves Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG) last-minute?
Booking your ticket from DCA to CAG right before your getaway is usually more expensive. But if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a DCA to CAG flight and hotel package?
You can save money by securing a DCA to CAG flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your preferred flights and accommodations, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Elmas Airport (CAG)?
It's usually possible to cancel or reschedule your DCA to CAG flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Elmas
Airlines serving
Air Canada, British Airways, Iberia
Roundtrip price
$760
Distance
4423 mi

Book with confidence

Washington to Cagliari Flights

The cheapest times to fly from Washington to Cagliari

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

 

The best time to book a flight from Washington to Cagliari

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

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 Cagliari in 2025. You can also book with separate airlines for your outbound and return journeys, from $508 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 Cagliari 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 Cagliari 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.

 

Washington to Cagliari Flights

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*Available to One Key members.