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Santiago de los Caballeros

$112+ Cheap flights from Washington, D.C. (WAS) to Santiago de los Caballeros (STI)

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — STI
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Find cheap flights from Washington, D.C. to Santiago de los Caballeros 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

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Cheap flight deals from Washington, D.C. to Santiago de los Caballeros

Cheapest flights from Washington, D.C. to Santiago de los Caballeros
Explore the most affordable flight options available from Washington, D.C. to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:44 pm
BWI
-
STI
1 stop17h 39m
Multiple Airlines
Fri 4/173:07 pm
STI
-
BWI
1 stop17h 36m
Multiple Airlines
Deal found 3/27$303
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:19 am
BWI
-
STI
1 stop15h 30m
Spirit Airlines
Thu 4/303:07 pm
STI
-
BWI
1 stop7h 13m
Spirit Airlines
Deal found 3/31$322
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:30 am
BWI
-
STI
1 stop8h 32m
Spirit Airlines
Sat 4/253:07 pm
STI
-
BWI
1 stop7h 13m
Spirit Airlines
Deal found 3/30$328
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/119:48 pm
BWI
-
STI
1 stop16h 35m
Multiple Airlines
Mon 4/203:07 pm
STI
-
BWI
1 stop18h 08m
Multiple Airlines
Deal found 3/31$330
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/119:48 pm
BWI
-
STI
1 stop16h 35m
Multiple Airlines
Sat 4/183:07 pm
STI
-
BWI
1 stop18h 18m
Multiple Airlines
Deal found 3/30$344
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:10 am
BWI
-
STI
1 stop27h 52m
Multiple Airlines
Fri 5/84:15 pm
STI
-
BWI
1 stop24h 52m
Multiple Airlines
Deal found 3/30$347
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:30 am
BWI
-
STI
1 stop8h 32m
Spirit Airlines
Mon 5/44:15 pm
STI
-
BWI
1 stop23h 13m
Spirit Airlines
Deal found 3/30$348
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:30 am
BWI
-
STI
1 stop8h 32m
Multiple Airlines
Fri 5/84:15 pm
STI
-
BWI
1 stop24h 52m
Multiple Airlines
Deal found 3/30$353
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:46 pm
BWI
-
STI
1 stop16h 16m
Multiple Airlines
Fri 5/84:15 pm
STI
-
BWI
1 stop24h 52m
Multiple Airlines
Deal found 3/30$358
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:59 pm
DCA
-
STI
1 stop12h 21m
JetBlue
Fri 4/178:01 am
STI
-
DCA
1 stop9h 44m
JetBlue
Deal found 3/27$360
This KAYAK deal was found by Cheapflights users on 3/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:59 pm
DCA
-
STI
1 stop12h 04m
JetBlue
Wed 5/67:31 am
STI
-
DCA
1 stop10h 03m
JetBlue
Deal found 3/27$361
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:59 pm
DCA
-
STI
1 stop12h 21m
JetBlue
Wed 4/298:31 am
STI
-
DCA
1 stop10h 29m
JetBlue
Deal found 3/30$365

Find flight deals from Washington, D.C. to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Santiago de los Caballeros (STI). 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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$303
(Kiwi.com)

One-way from

$112
(Super.com)

Popular in

June

Cheapest in

October

Average price

$602
Provider with most accurate pricing for Washington, D.C. (WAS)-Santiago de los Caballeros flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Santiago de los Caballeros flights.
Search Deals
From Washington, D.C. (WAS) to Santiago de los Caballeros
Search Deals
One-way flight from Washington, D.C. (WAS) to Santiago de los Caballeros
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Santiago de los Caballeros 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 April 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 4/12

6:59 pm-7:20 am

1 stop12h 21m

Santiago de los Caballeros

Fri 4/17

8:01 am-2:37 pm

1 stop6h 36m

$428

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/21

6:10 pm-7:20 am

1 stop13h 10m

Santiago de los Caballeros

Fri 4/24

8:01 am-2:37 pm

1 stop6h 36m

$444

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Mon 4/13

5:40 pm-2:23 pm

3 stops20h 43m

Santiago de los Caballeros

Thu 4/30

3:07 pm-11:21 am

3 stops20h 14m

$468

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 5/15

6:59 pm-8:02 am

1 stop13h 03m

Santiago de los Caballeros

Fri 5/22

8:52 am-7:59 pm

1 stop11h 07m

$474

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 4/13

6:59 pm-7:20 am

1 stop12h 21m

Santiago de los Caballeros

Thu 4/30

8:31 am-10:59 pm

2 stops14h 28m

$476

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Mon 4/13

10:09 am-2:23 pm

3 stops28h 14m

Santiago de los Caballeros

Thu 4/30

3:07 pm-10:00 am

3 stops18h 53m

$494

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 6/9

7:00 pm-1:54 am

1 stop6h 54m

Santiago de los Caballeros

Sun 6/21

6:47 pm-7:57 am

1 stop13h 10m

$499

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 4/23

5:30 am-2:02 pm

1 stop8h 32m

Santiago de los Caballeros

Sun 4/26

3:07 pm-10:20 pm

1 stop7h 13m

$508

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/23

2:45 pm-8:02 am

1 stop17h 17m

Santiago de los Caballeros

Mon 4/27

8:31 am-12:20 pm

1 stop27h 49m

$513

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/23

6:00 am-10:32 pm

1 stop16h 32m

Santiago de los Caballeros

Tue 4/28

8:31 am-12:20 pm

1 stop27h 49m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 52 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Santiago de los Caballeros

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Santiago de los Caballeros in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Santiago de los Caballeros 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.-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Santiago de los Caballeros 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.-Santiago de los Caballeros 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 Washington, D.C. to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Santiago de los Caballeros

How far ahead should I book a flight from Washington, D.C. to Santiago de los Caballeros?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Santiago de los Caballeros. Price data was last updated on March 13, 2026.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Santiago de los Caballeros. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Santiago de los Caballeros?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Santiago de los Caballeros (average of $213). Flying from Washington, D.C. to Santiago de los Caballeros in May is currently the most expensive (average of $352). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. to Santiago de los Caballeros?

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago de los Caballeros. Reviews last updated April 1, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from Washington, D.C. to Santiago de los Caballeros to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,368 reviews
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,529 reviews
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,908 reviews
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,544 reviews
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,572 reviews
Delta
7.9
Good
8,368 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Santiago de los Caballeros. 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 Santiago de los Caballeros from Washington, D.C.?

    Santiago de los Caballeros (STI) is the airport you will fly into if you book a flight from Washington, D.C. to Santiago de los Caballeros. You should not have trouble finding flights to Santiago from Washington, D.C.; the airport handles an average of 0 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Santiago de los Caballeros airport from Washington, D.C.. It is only a 6.8 mi journey from Santiago (STI) to Santiago de los Caballeros’s city center.

  • How long is the flight from Washington, D.C. to Santiago de los Caballeros?

    JetBlue, Spirit Airlines, and United Airlines can get you from Washington, D.C. to Santiago de los Caballeros in just under 6h 52m. Your travel time can differ by up to 5h 29m. The distance from Washington, D.C. to Santiago de los Caballeros is about 1410 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. to Santiago de los Caballeros round-trip?

    According to our current data, JetBlue ($362), United Airlines ($467), and American Airlines ($484) offers the cheapest pricing from Washington, D.C. to Santiago de los Caballeros. JetBlue is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. to Santiago de los Caballeros one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $232. Users have also found prices from $280 and $286 on American Airlines and Delta, respectively.

  • What are the most popular routes from Washington, D.C. to Santiago de los Caballeros?

    Most travelers choose Washington, D.C. Reagan-National - Santiago de los Caballeros, Washington, D.C. Dulles Intl - Santiago de los Caballeros or Baltimore/Washington - Santiago de los Caballeros when deciding on the best route from Washington, D.C. to Santiago de los Caballeros.

  • Can I find deals for flights from Washington, D.C. to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Santiago de los Caballeros.

  • Can I find deals for business class flights from Washington, D.C. to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Santiago de los Caballeros by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Santiago de los Caballeros?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Santiago de los Caballeros (average of $213). Flying from Washington, D.C. to Santiago de los Caballeros in May is currently the most expensive (average of $352). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington, D.C. to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Punta Cana flights
Reagan-National to Punta Cana flights
Dulles Intl to Santo Domingo flights
Reagan-National to Santo Domingo flights
Reagan-National to Puerto Plata flights
Dulles Intl to Puerto Plata flights

Top 5 airlines flying from Washington, D.C. to Santiago de los Caballeros

Discover the top 5 airlines that operate flights from Washington, D.C. to Santiago de los Caballeros. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$311Average$390FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$362Average$513FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$467Average$678FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$484Average$612FlexibilityNo cancel feeOn-time71%
DeltaCheapest$498Average$599FlexibilityNo cancel feeOn-timeN/A

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