HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$173+ Cheap flights from Santiago de los Caballeros (STI) to Washington, D.C. (WAS)

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
STI — WAS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santiago de los Caballeros to Washington, D.C. 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 Santiago de los Caballeros to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Santiago de los Caballeros (STI) to Washington, D.C. (WAS). 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 September 17, 2025.

Round-trip from

$327
(Cheapflightsfares)

One-way from

$173
(Cheapflightsfares)
From Santiago de los Caballeros to Washington, D.C. (WAS)
Search Deals
One-way flight from Santiago de los Caballeros to Washington, D.C. (WAS)
Search Deals

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

Cheapest flights from Santiago de los Caballeros to Washington, D.C.
Explore the most affordable flight options available from Santiago de los Caballeros to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Tue 11/115:10 amBWI - STI
1 stop10h 56mSpirit Airlines
Deal found 9/16$327
This OneTravel deal was found by Cheapflights users on 9/17. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Fri 10/248:21 pmBWI - STI
1 stop14h 17mSpirit Airlines
Deal found 9/17$333
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Wed 10/112:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Sun 10/58:21 pmBWI - STI
1 stop14h 17mSpirit Airlines
Deal found 9/15$336
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/111:43 amSTI - BWI
1 stop11h 49mSpirit Airlines
Wed 11/55:10 amBWI - STI
1 stop10h 56mSpirit Airlines
Deal found 9/16$340
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Wed 12/35:10 amBWI - STI
1 stop10h 56mSpirit Airlines
Deal found 9/17$345
This OneTravel deal was found by Cheapflights users on 9/17. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Sun 12/79:37 pmBWI - STI
2 stops18h 29mSpirit Airlines
Deal found 9/17$348
This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:29 amSTI - DCA
1 stop8h 33mJetBlue
Tue 11/117:00 amDCA - STI
1 stop9h 43mJetBlue
Deal found 9/16$393
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/21:12 pmSTI - DCA
1 stop9h 44mJetBlue
Wed 10/226:25 amDCA - STI
1 stop7h 48mJetBlue
Deal found 9/14$444
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:10 amSTI - DCA
1 stop8h 34mJetBlue
Fri 10/245:20 pmDCA - STI
1 stop9h 08mJetBlue
Deal found 9/14$456
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:10 amSTI - DCA
1 stop8h 06mJetBlue
Mon 10/205:20 pmDCA - STI
1 stop7h 14mJetBlue
Deal found 9/14$468
This JetBlue deal was found by Cheapflights users on 9/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:10 amSTI - DCA
1 stop8h 06mJetBlue
Mon 10/205:20 pmDCA - STI
1 stop7h 14mJetBlue
Deal found 9/14$489
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 11/276:35 amSTI - DCA
1 stop15h 40mDelta
Wed 12/317:00 amDCA - STI
1 stop11h 17mDelta
Deal found 9/15$497

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros to Washington, D.C. 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 September 17, 2025.
Use the filters below to find and compare flights from Santiago de los Caballeros to Washington, D.C. that are best for you.

Fly from

Santiago de los Caballeros

Fly to

Washington, D.C.

Route

Depart

Return

Price

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Thu 11/6

6:18 pm-11:54 pm

1 stop6h 36m

Baltimore/Washington

Tue 11/11

5:10 am-5:06 pm

1 stop10h 56m

$327

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Fri 10/3

12:10 pm-11:25 pm

1 stop11h 15m

Baltimore/Washington

Fri 10/24

9:41 pm-10:38 am

2 stops12h 57m

$339

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Sat 11/1

11:43 am-11:32 pm

1 stop11h 49m

Baltimore/Washington

Wed 11/5

5:10 am-5:06 pm

1 stop10h 56m

$340

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Thu 11/20

6:18 pm-11:54 pm

1 stop6h 36m

Baltimore/Washington

Wed 12/3

9:37 pm-5:06 pm

2 stops18h 29m

$350

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Fri 12/5

6:18 pm-11:54 pm

1 stop6h 36m

Baltimore/Washington

Sun 12/7

10:48 am-5:06 pm

1 stop5h 18m

$358

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Wed 10/1

12:10 pm-11:25 pm

1 stop11h 15m

Baltimore/Washington

Sun 10/5

8:21 pm-10:38 am

1 stop14h 17m

$359

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Thu 11/6

9:29 am-5:02 pm

1 stop8h 33m

Washington, D.C. Reagan-National

Tue 11/11

7:00 am-5:43 pm

1 stop9h 43m

$393

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Thu 10/2

1:12 pm-10:56 pm

1 stop9h 44m

Washington, D.C. Reagan-National

Thu 10/23

6:25 am-6:04 pm

1 stop11h 39m

$444

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Thu 10/2

1:12 pm-10:56 pm

1 stop9h 44m

Washington, D.C. Reagan-National

Wed 10/22

6:25 am-2:13 pm

1 stop7h 48m

$444

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Fri 10/3

3:30 pm-10:56 pm

1 stop7h 26m

Washington, D.C. Reagan-National

Tue 10/21

5:20 pm-2:26 am

1 stop9h 06m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 51 results
1
2
3
...
6

Best time to book a flight from Santiago de los Caballeros to Washington, D.C.

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

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

Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Washington, D.C. (average of $292). Flying from Santiago de los Caballeros to Washington, D.C. in April is currently the most expensive (average of $337). 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.

What is the cheapest time of day to fly from STI to WAS?

Find hourly flight availability from Santiago de los Caballeros to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s optimal to fly from Santiago de los Caballeros to Washington, D.C. in the afternoon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with Delta from Santiago de los Caballeros to Washington, D.C. 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
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

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

    Located just 6.8 mi from the city center, Santiago de los Caballeros is the airport most travelers will use when flying to Washington, D.C. from Santiago de los Caballeros. Booking flights from Santiago (STI) to Washington, D.C. should be relatively easy as there are 0 daily outbound flights to Washington, D.C. from 1 airline.

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

    For as low as $327, Spirit Airlines can have you in Washington, D.C. from Santiago de los Caballeros in 6h 36m. The distance from Santiago de los Caballeros to Washington, D.C. is about 1412 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Santiago de los Caballeros to Washington, D.C. round-trip?

    Cheapflights users have booked flights from Santiago de los Caballeros to Washington, D.C. round-trip from $426.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $173. JetBlue flights start at $184 while deals on Delta start at $336 one-way.

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

    While some choose either Santiago de los Caballeros - Washington, D.C. Reagan-National or Santiago de los Caballeros - Washington, D.C. Dulles Intl, Santiago de los Caballeros - Baltimore/Washington is the most popular route from Santiago de los Caballeros to Washington, D.C..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santiago de los Caballeros to Washington, D.C. 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 Santiago de los Caballeros to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Santiago de los Caballeros to Washington, D.C. (average of $292). Flying from Santiago de los Caballeros to Washington, D.C. in April is currently the most expensive (average of $337). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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.

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

Discover the top airline that operate flights from Santiago de los Caballeros to Washington, D.C.. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$426Average$520FlexibilityNo cancel feeOn-time62%

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.