$144 Cheap Flights from Washington (IAD) to Santo Domingo (SDQ)

View $144 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)

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Cheap Flights from Washington to Santo Domingo (IAD-SDQ)

Prices were available within the past 7 days and start at $144 for one-way flights and $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Sat, Nov 29 - Wed, Dec 3
IAD
Washington
SDQ
Santo Domingo
$337 Roundtrip, found 21 hours ago
$337
Roundtrip
found 21 hours ago
Select Copa flight, departing Sat, Nov 29 from Washington to Santo Domingo, returning Wed, Dec 3, priced at $337 found 21 hours ago
Copa
Wed, Nov 19 - Wed, Nov 26
IAD
Washington
SDQ
Santo Domingo
$346 Roundtrip, just found
$346
Roundtrip
just found
Select Copa flight, departing Wed, Nov 19 from Washington to Santo Domingo, returning Wed, Nov 26, priced at $346 just found
Copa
Wed, Nov 12 - Wed, Dec 3
IAD
Washington
SDQ
Santo Domingo
$348 Roundtrip, found 5 days ago
$348
Roundtrip
found 5 days ago
Select Copa flight, departing Wed, Nov 12 from Washington to Santo Domingo, returning Wed, Dec 3, priced at $348 found 5 days ago
Copa
Thu, Nov 13 - Wed, Dec 3
IAD
Washington
SDQ
Santo Domingo
$349 Roundtrip, found 6 days ago
$349
Roundtrip
found 6 days ago
Select Copa flight, departing Thu, Nov 13 from Washington to Santo Domingo, returning Wed, Dec 3, priced at $349 found 6 days ago
Frontier Airlines
Sun, Nov 9 - Sun, Nov 16
IAD
Washington
SDQ
Santo Domingo
$352 Roundtrip, found 2 hours ago
$352
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Washington to Santo Domingo, returning Sun, Nov 16, priced at $352 found 2 hours ago
Copa
Wed, Nov 19 - Wed, Nov 26
IAD
Washington
SDQ
Santo Domingo
$361 Roundtrip, just found
$361
Roundtrip
just found
Select Copa flight, departing Wed, Nov 19 from Washington to Santo Domingo, returning Wed, Nov 26, priced at $361 just found
Copa
Wed, Nov 12 - Wed, Dec 3
IAD
Washington
SDQ
Santo Domingo
$363 Roundtrip, found 5 days ago
$363
Roundtrip
found 5 days ago
Select Copa flight, departing Wed, Nov 12 from Washington to Santo Domingo, returning Wed, Dec 3, priced at $363 found 5 days ago
Delta
Wed, Sep 9 - Wed, Sep 16
IAD
Washington
SDQ
Santo Domingo
$436 Roundtrip, found 3 days ago
$436
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Sep 9 from Washington to Santo Domingo, returning Wed, Sep 16, priced at $436 found 3 days ago
American Airlines
Thu, Feb 5 - Tue, Feb 10
IAD
Washington
SDQ
Santo Domingo
$462 Roundtrip, found 1 day ago
$462
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 5 from Washington to Santo Domingo, returning Tue, Feb 10, priced at $462 found 1 day ago
United
Wed, Feb 4 - Wed, Feb 11
IAD
Washington
SDQ
Santo Domingo
$468 Roundtrip, found 1 hour ago
$468
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Feb 4 from Washington to Santo Domingo, returning Wed, Feb 11, priced at $468 found 1 hour ago

Find the cheapest month to fly from Washington (IAD) to Santo Domingo (SDQ)

July is typically the cheapest month to fly

From $322 - $683 per traveler.

Alternative airports near Santo Domingo

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

Select flight to Las Americas Intl. SDQ. Cheapest option available. Average driving time to city center is 22 minutes. Flights from $352
SDQ
Las Americas Intl.
Cheapest
Average driving time to city center22 min
Flights from $352

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ) cost?
Secure a cheap one-way flight from $144 or cheap return flight from $337 from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)?
The cheapest month to fly from IAD to SDQ is November, when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from IAD to SDQ. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to SDQ?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from IAD to SDQ?
United Airlines has the best track record for on-time direct flights from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ), with an on-time score of 85%. Use the Expedia App to look up your journey status before you go and get immediate updates about any changes.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)?
To arrive at Las Americas Intl. Airport (SDQ) without delays, choose a flight that leaves Washington Dulles Intl. Airport (IAD) 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 Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ) last-minute?
Last-minute fares from IAD to SDQ are generally more expensive. To secure the best prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, you may land a cheap fare right before your journey.
Is it cheaper to book an IAD to SDQ flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to SDQ flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of travel planning. Just pick your flights and select from our extensive range of stays, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Las Americas Intl. Airport (SDQ)?
If you reserved your IAD to SDQ flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Las Americas Intl.
Airlines serving
Aeromexico, American Airlines, Copa, Delta, Frontier Airlines, United, avianca
Roundtrip price
$337
Distance
1492 mi

Book with confidence

Washington to Santo Domingo Flights

The cheapest times to fly from Washington to Santo Domingo

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

 

The best time to book a flight from Washington to Santo Domingo

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

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 Santo Domingo in 2025. You can also book with separate airlines for your outbound and return journeys, from $144 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 Santo Domingo 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 Santo Domingo 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 Santo Domingo Flights

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