HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cagliari

$630+ Cheap flights from Reagan-National (DCA) to Cagliari (CAG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CAG
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Cagliari with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Cagliari

Best flights from Reagan-National to Cagliari
Discover carefully curated flight deals from Reagan-National to Cagliari that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Gotogate deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:59 amDCA - CAG
2 stops28h 46mMultiple Airlines
Tue 5/196:35 pmCAG - DCA
2 stops33h 20mMultiple Airlines
Deal found 12/16$1,015
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:35 amDCA - CAG
2 stops23h 50mDelta
Thu 5/215:05 pmCAG - DCA
2 stops34h 04mDelta
Deal found 12/16$1,135
This Booking.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:40 pmDCA - CAG
2 stops38h 25mAir Canada
Sat 4/49:10 amCAG - DCA
2 stops36h 20mAir Canada
Deal found 12/17$1,428
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:05 amDCA - CAG
2 stops28h 20mDelta
Thu 5/215:05 pmCAG - DCA
2 stops32h 04mDelta
Deal found 12/16$1,135
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:30 amDCA - CAG
2 stops25h 55mDelta
Wed 5/205:05 pmCAG - DCA
2 stops35h 54mDelta
Deal found 12/16$1,135
This Expedia deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/305:00 pmDCA - CAG
2 stops13h 50mMultiple Airlines
Fri 2/69:30 amCAG - DCA
2 stops19h 18mMultiple Airlines
Deal found 12/16$1,324
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:30 amDCA - CAG
2 stops25h 55mDelta
Tue 5/195:05 pmCAG - DCA
2 stops30h 18mDelta
Deal found 12/16$1,135
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:00 pmDCA - CAG
2 stops22h 25mDelta
Mon 5/185:05 pmCAG - DCA
2 stops31h 06mDelta
Deal found 12/16$1,135
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:30 pmDCA - CAG
2 stops20h 55mDelta
Tue 5/195:05 pmCAG - DCA
2 stops36h 21mDelta
Deal found 12/16$1,135
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:30 pmDCA - CAG
2 stops18h 55mDelta
Wed 5/205:05 pmCAG - DCA
2 stops35h 54mDelta
Deal found 12/16$1,135
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:05 amDCA - CAG
2 stops28h 20mDelta
Sun 5/175:05 pmCAG - DCA
2 stops31h 06mDelta
Deal found 12/16$1,195
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:30 pmDCA - CAG
2 stops18h 55mDelta
Sun 5/175:05 pmCAG - DCA
2 stops32h 04mDelta
Deal found 12/16$1,245

Find flight deals from Reagan-National to Cagliari

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Cagliari (CAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,015
(Gotogate)

One-way from

$630
(Mytrip)
Provider with most accurate pricing for Washington, D.C. Reagan-National-Cagliari Elmas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Cagliari Elmas flights.
Search Deals
From Washington, D.C. Reagan-National to Cagliari Elmas
Search Deals
One-way flight from Washington, D.C. Reagan-National to Cagliari Elmas
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Cagliari that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Cagliari that are best for you.

Fly from

Reagan-National

Fly to

Cagliari

Route

Depart

Return

Price

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Sun 5/10

6:59 am-5:45 pm

2 stops28h 46m

Cagliari Elmas

Tue 5/19

6:35 pm-9:55 pm

2 stops33h 20m

$1,015

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Tue 5/12

10:35 am-4:25 pm

2 stops23h 50m

Cagliari Elmas

Thu 5/21

5:05 pm-9:09 pm

2 stops34h 04m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Sun 5/10

6:05 am-4:25 pm

2 stops28h 20m

Cagliari Elmas

Thu 5/21

5:05 pm-7:09 pm

2 stops32h 04m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Sun 5/10

8:30 am-4:25 pm

2 stops25h 55m

Cagliari Elmas

Wed 5/20

5:05 pm-10:59 pm

2 stops35h 54m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Sun 5/10

8:30 am-4:25 pm

2 stops25h 55m

Cagliari Elmas

Tue 5/19

5:05 pm-5:23 pm

2 stops30h 18m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Tue 5/12

12:00 pm-4:25 pm

2 stops22h 25m

Cagliari Elmas

Mon 5/18

5:05 pm-6:11 pm

2 stops31h 06m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Tue 5/12

1:30 pm-4:25 pm

2 stops20h 55m

Cagliari Elmas

Tue 5/19

5:05 pm-11:26 pm

2 stops36h 21m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Tue 5/12

3:30 pm-4:25 pm

2 stops18h 55m

Cagliari Elmas

Wed 5/20

5:05 pm-10:59 pm

2 stops35h 54m

$1,135

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Sun 5/10

6:05 am-4:25 pm

2 stops28h 20m

Cagliari Elmas

Sun 5/17

5:05 pm-6:11 pm

2 stops31h 06m

$1,195

Washington, D.C.Cagliari

DCA - CAG

DCACAG

Washington, D.C. Reagan-National

Tue 5/12

3:30 pm-4:25 pm

2 stops18h 55m

Cagliari Elmas

Sun 5/17

5:05 pm-7:09 pm

2 stops32h 04m

$1,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 14 results
1
2
  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Cagliari flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Cagliari flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Cagliari flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Cagliari flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Cagliari flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Cagliari

Have a flexible travel schedule? Discover the best time to fly to Cagliari from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Cagliari. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cagliari from Washington, D.C. Reagan-National?

    Cagliari Elmas (CAG), located 4.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Cagliari. 0 airlines have flights to Elmas from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Cagliari Elmas should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Cagliari?

    Airlines like Delta fly from Washington, D.C. Reagan-National Airport to Cagliari in about 23h 50m. The time it takes to get you to your destination can typically vary by up to . The distance between Washington, D.C. Reagan-National Airport and Cagliari is about 4420 mi.

  • Can I find deals for flights from Reagan-National to Cagliari that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Cagliari flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Cagliari?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Cagliari.

  • Can I find deals for business class flights from Reagan-National to Cagliari?

    Yes. Cheapflights offers flight deals from Reagan-National to Cagliari by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Cagliari?

Book flights to Cagliari if you plan to visit one of these locations
Oristano

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.