$531 Cheap Flights from Washington (DCA) to Olbia (OLB)

View $531 flight on Tue, Sep 8, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB)

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Cheap Flights from Washington to Olbia (DCA-OLB)

Prices were available within the past 7 days and start at $531 for one-way flights and $663 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Sep 9 - Thu, Sep 17
DCA
Washington
OLB
Olbia
$663 Roundtrip, found 17 hours ago
$663
Roundtrip
found 17 hours ago
Select British Airways flight, departing Wed, Sep 9 from Washington to Olbia, returning Thu, Sep 17, priced at $663 found 17 hours ago
British Airways
Wed, Sep 9 - Thu, Sep 17
DCA
Washington
OLB
Olbia
$665 Roundtrip, found 17 hours ago
$665
Roundtrip
found 17 hours ago
Select British Airways flight, departing Wed, Sep 9 from Washington to Olbia, returning Thu, Sep 17, priced at $665 found 17 hours ago
American Airlines
Thu, Sep 10 - Thu, Sep 17
DCA
Washington
OLB
Olbia
$668 Roundtrip, found 17 hours ago
$668
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Thu, Sep 10 from Washington to Olbia, returning Thu, Sep 17, priced at $668 found 17 hours ago
American Airlines
Wed, Sep 9 - Thu, Sep 17
DCA
Washington
OLB
Olbia
$679 Roundtrip, found 17 hours ago
$679
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Sep 9 from Washington to Olbia, returning Thu, Sep 17, priced at $679 found 17 hours ago
British Airways
Wed, Aug 19 - Thu, Aug 27
DCA
Washington
OLB
Olbia
$683 Roundtrip, found 6 days ago
$683
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Aug 19 from Washington to Olbia, returning Thu, Aug 27, priced at $683 found 6 days ago
Scandinavian Airlines
Fri, Apr 17 - Sat, May 2
DCA
Washington
OLB
Olbia
$684 Roundtrip, found 12 hours ago
$684
Roundtrip
found 12 hours ago
Select Scandinavian Airlines flight, departing Fri, Apr 17 from Washington to Olbia, returning Sat, May 2, priced at $684 found 12 hours ago
Scandinavian Airlines
Fri, Apr 24 - Sat, May 9
DCA
Washington
OLB
Olbia
$724 Roundtrip, found 12 hours ago
$724
Roundtrip
found 12 hours ago
Select Scandinavian Airlines flight, departing Fri, Apr 24 from Washington to Olbia, returning Sat, May 9, priced at $724 found 12 hours ago
British Airways
Tue, Sep 8 - Wed, Sep 16
DCA
Washington
OLB
Olbia
$750 Roundtrip, found 17 hours ago
$750
Roundtrip
found 17 hours ago
Select British Airways flight, departing Tue, Sep 8 from Washington to Olbia, returning Wed, Sep 16, priced at $750 found 17 hours ago
Iberia
Tue, Sep 1 - Thu, Sep 10
DCA
Washington
OLB
Olbia
$760 Roundtrip, found 4 days ago
$760
Roundtrip
found 4 days ago
Select Iberia flight, departing Tue, Sep 1 from Washington to Olbia, returning Thu, Sep 10, priced at $760 found 4 days ago
Air Canada
Mon, Aug 31 - Wed, Sep 9
DCA
Washington
OLB
Olbia
$809 Roundtrip, found 5 days ago
$809
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Aug 31 from Washington to Olbia, returning Wed, Sep 9, priced at $809 found 5 days ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB) cost?
Lock in a cheap one-way flight from $531 or cheap return flight from $663 from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB) 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 Costa Smeralda Airport (OLB)?
September is the cheapest month to fly from DCA to OLB. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB)?
To find the cheapest airline flying from DCA to OLB, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB)?
There aren't any daily nonstop flights from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from DCA to OLB?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based 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 Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB)?
To avoid possible delays on the Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB) route, travel before 3 PM. Departures after this time are 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 Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB) last-minute?
Holding off until right before your break to book your flight from DCA to OLB generally means paying more. While it's possible to find some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible for the best chance of scoring a bargain.
Is it cheaper to book a DCA to OLB flight and hotel package?
Compared with arranging flights and hotels separately, booking a DCA to OLB flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place takes the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Costa Smeralda Airport (OLB)?
If you booked your DCA to OLB flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket 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, visit our Customer Service portal for more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Costa Smeralda
Airlines serving
British Airways, Delta, Iberia, KLM, Scandinavian Airlines
Roundtrip price
$663
Distance
4387 mi

Book with confidence

Washington to Olbia Flights

The cheapest times to fly from Washington to Olbia

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

 

The best time to book a flight from Washington to Olbia

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

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 Olbia in 2025. You can also book with separate airlines for your outbound and return journeys, from $531 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 Olbia 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 Olbia 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 Olbia Flights

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