$712 Cheap Flights from Washington (DCA) to Sal Island (SID)

View $712 flight on Sun, Feb 22, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Sal Island (SID-Amilcar Cabral Intl.)

Cheap Flights from Washington to Sal Island (DCA-SID)

Prices were available within the past 7 days and start at $712 for one-way flights and $1,186 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Feb 23 - Thu, Feb 26
DCA
Washington
SID
Sal
$1,186 Roundtrip, found 1 day ago
$1,186
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 23 from Washington to Sal, returning Thu, Feb 26, priced at $1,186 found 1 day ago
United
Mon, Feb 23 - Thu, Feb 26
DCA
Washington
SID
Sal
$1,190 Roundtrip, found 1 day ago
$1,190
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 23 from Washington to Sal, returning Thu, Feb 26, priced at $1,190 found 1 day ago
United
Mon, Feb 23 - Thu, Feb 26
DCA
Washington
SID
Sal
$1,242 Roundtrip, found 1 day ago
$1,242
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 23 from Washington to Sal, returning Thu, Feb 26, priced at $1,242 found 1 day ago
Air Canada
Sun, Feb 22 - Wed, Feb 25
DCA
Washington
SID
Sal
$1,274 Roundtrip, found 1 day ago
$1,274
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Feb 22 from Washington to Sal, returning Wed, Feb 25, priced at $1,274 found 1 day ago
Air Canada
Sun, Feb 22 - Wed, Feb 25
DCA
Washington
SID
Sal
$1,278 Roundtrip, found 1 day ago
$1,278
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Feb 22 from Washington to Sal, returning Wed, Feb 25, priced at $1,278 found 1 day ago
United
Sun, Feb 22 - Wed, Feb 25
DCA
Washington
SID
Sal
$1,278 Roundtrip, found 1 day ago
$1,278
Roundtrip
found 1 day ago
Select United flight, departing Sun, Feb 22 from Washington to Sal, returning Wed, Feb 25, priced at $1,278 found 1 day ago
United
Sun, Feb 22 - Wed, Feb 25
DCA
Washington
SID
Sal
$1,301 Roundtrip, found 1 day ago
$1,301
Roundtrip
found 1 day ago
Select United flight, departing Sun, Feb 22 from Washington to Sal, returning Wed, Feb 25, priced at $1,301 found 1 day ago
JetBlue Airways
Thu, Dec 11 - Thu, Dec 18
DCA
Washington
SID
Sal
$1,330 Roundtrip, found 2 days ago
$1,330
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 11 from Washington to Sal, returning Thu, Dec 18, priced at $1,330 found 2 days ago
Air Canada
Thu, Dec 11 - Thu, Dec 18
DCA
Washington
SID
Sal
$1,361 Roundtrip, found 2 days ago
$1,361
Roundtrip
found 2 days ago
Select Air Canada flight, departing Thu, Dec 11 from Washington to Sal, returning Thu, Dec 18, priced at $1,361 found 2 days ago
TAP Portugal
Tue, Dec 9 - Tue, Dec 16
DCA
Washington
SID
Sal
$1,637 Roundtrip, found 2 days ago
$1,637
Roundtrip
found 2 days ago
Select TAP Portugal flight, departing Tue, Dec 9 from Washington to Sal, returning Tue, Dec 16, priced at $1,637 found 2 days ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID) cost?
Snag a cheap one-way flight from $712 or cheap return flight from $1,186 from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID) 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 Amilcar Cabral Intl. Airport (SID)?
February is the most affordable month to fly from DCA to SID. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from DCA to SID. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID)?
You'll have to take a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DCA to SID?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary 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 Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID)?
To avoid possible delays on the Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID) route, aim to fly before 3 PM. Flights after this time 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 Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID) last-minute?
Last-minute bookings from DCA to SID are generally more expensive. For the best rates, start looking for flights as early as possible. That said, if you're flexible with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book a DCA to SID flight and hotel package?
You can save money by securing a DCA to SID flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred accommodations and flights, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Amilcar Cabral Intl. Airport (SID)?
Usually, it's possible to reschedule or cancel your DCA to SID flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether 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
Amilcar Cabral Intl.
Airlines serving
TAP Portugal
Roundtrip price
$1,186
Distance
3581 mi

Book with confidence

Washington to Sal Island Flights

The cheapest times to fly from Washington to Sal Island

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

 

The best time to book a flight from Washington to Sal Island

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

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 Sal Island in 2025. You can also book with separate airlines for your outbound and return journeys, from $712 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 Sal Island 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 Sal Island 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 Sal Island Flights

Explore a world of travel with Expedia

*Available to One Key members.