$229 Cheap Flights from Santo Domingo (SDQ) to Washington (IAD)

View $229 flight on Thu, Jan 15, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $229 for one-way flights and $347 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Dec 20 - Thu, Jan 8
SDQ
Santo Domingo
IAD
Washington
$347 Roundtrip, found 3 days ago
$347
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Dec 20 from Santo Domingo to Washington, returning Thu, Jan 8, priced at $347 found 3 days ago
Frontier Airlines
Mon, Dec 22 - Thu, Jan 8
SDQ
Santo Domingo
IAD
Washington
$350 Roundtrip, found 4 days ago
$350
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Dec 22 from Santo Domingo to Washington, returning Thu, Jan 8, priced at $350 found 4 days ago
Copa
Wed, Nov 19 - Sat, Nov 22
SDQ
Santo Domingo
IAD
Washington
$365 Roundtrip, found 3 days ago
$365
Roundtrip
found 3 days ago
Select Copa flight, departing Wed, Nov 19 from Santo Domingo to Washington, returning Sat, Nov 22, priced at $365 found 3 days ago
Frontier Airlines
Sun, Dec 21 - Tue, Jan 6
SDQ
Santo Domingo
IAD
Washington
$371 Roundtrip, found 3 days ago
$371
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Dec 21 from Santo Domingo to Washington, returning Tue, Jan 6, priced at $371 found 3 days ago
Copa
Sat, Jan 31 - Tue, Feb 3
SDQ
Santo Domingo
IAD
Washington
$374 Roundtrip, found 1 hour ago
$374
Roundtrip
found 1 hour ago
Select Copa flight, departing Sat, Jan 31 from Santo Domingo to Washington, returning Tue, Feb 3, priced at $374 found 1 hour ago
Copa
Wed, Nov 19 - Sat, Nov 22
SDQ
Santo Domingo
IAD
Washington
$383 Roundtrip, found 3 days ago
$383
Roundtrip
found 3 days ago
Select Copa flight, departing Wed, Nov 19 from Santo Domingo to Washington, returning Sat, Nov 22, priced at $383 found 3 days ago
Frontier Airlines
Sat, Nov 22 - Sun, Nov 30
SDQ
Santo Domingo
IAD
Washington
$387 Roundtrip, found 2 days ago
$387
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Nov 22 from Santo Domingo to Washington, returning Sun, Nov 30, priced at $387 found 2 days ago
Delta
Tue, May 12 - Tue, May 19
SDQ
Santo Domingo
IAD
Washington
$516 Roundtrip, found 14 hours ago
$516
Roundtrip
found 14 hours ago
Select Delta flight, departing Tue, May 12 from Santo Domingo to Washington, returning Tue, May 19, priced at $516 found 14 hours ago
United
Fri, May 8 - Thu, May 14
SDQ
Santo Domingo
IAD
Washington
$516 Roundtrip, found 1 hour ago
$516
Roundtrip
found 1 hour ago
Select United flight, departing Fri, May 8 from Santo Domingo to Washington, returning Thu, May 14, priced at $516 found 1 hour ago
American Airlines
Fri, Dec 26 - Thu, Jan 1
SDQ
Santo Domingo
IAD
Washington
$521 Roundtrip, found 10 hours ago
$521
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Dec 26 from Santo Domingo to Washington, returning Thu, Jan 1, priced at $521 found 10 hours ago

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

December is typically the cheapest month to fly

From $347 - $1,075 per traveler.

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $346
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $346

Frequently asked questions

How much does a flight from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $229 or cheap return flight from $347 from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from SDQ to IAD is December, when there's less demand. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SDQ to IAD flight.
How many flights per day from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDQ to IAD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from SDQ to IAD?
United Airlines has the best performance for on-time direct flights from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD), with an on-time score of 98%. Use the Expedia App to view your journey status before you head off and get real-time alerts about any changes.
What is the best time to fly from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on schedule, opt for a flight that leaves from Las Americas Intl. Airport (SDQ) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from SDQ to IAD right before your journey is generally more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a SDQ to IAD flight and hotel package?
You can save money by booking a SDQ to IAD 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 place. After choosing your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Las Americas Intl. Airport (SDQ) to Washington Dulles Intl. Airport (IAD)?
If you booked your SDQ to IAD flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after 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
Las Americas Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aeromexico, American Airlines, Copa, Delta, Frontier Airlines, United, avianca
Roundtrip price
$346
Distance
1492 mi

Book with confidence

Santo Domingo to Washington Flights

The cheapest times to fly from Santo Domingo to Washington

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

 

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

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

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 Santo Domingo to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $229 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 Santo Domingo to Washington 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 Santo Domingo to Washington 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.

 

Santo Domingo to Washington Flights

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