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Washington, D.C.

$159+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
STI — WAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 11, 2025.

Round-trip from

$312
(Cheapflightsfares)

One-way from

$159
(Kiwi.com)

Popular in

September

Cheapest in

June

Average price

$830
From Santiago de los Caballeros to Washington, D.C. (WAS)
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One-way flight from Santiago de los Caballeros to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 14% potential increase in price ($93 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/57:00 pmBWI - STI
1 stop15h 38mSpirit Airlines
Deal found 9/10$312
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 11/1110:48 amBWI - STI
1 stop5h 18mSpirit Airlines
Deal found 9/9$328
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:43 amSTI - BWI
1 stop11h 49mSpirit Airlines
Fri 10/315:55 pmBWI - STI
1 stop16h 43mSpirit Airlines
Deal found 9/9$332
This OneTravel deal was found by Cheapflights users on 9/11. 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.
Thu 9/2512:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Fri 9/267:49 pmBWI - STI
1 stop15h 14mSpirit Airlines
Deal found 9/11$346
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 9/10$352
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2411:43 amSTI - BWI
1 stop27h 05mMultiple Airlines
Fri 10/319:11 pmBWI - STI
2 stops13h 27mMultiple Airlines
Deal found 9/9$363
This JetBlue deal was found by Cheapflights users on 9/11. 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.
Sat 10/112:00 pmSTI - DCA
1 stop7h 57mJetBlue
Sat 10/188:00 pmDCA - STI
1 stop12h 57mJetBlue
Deal found 9/11$425
This JetBlue deal was found by Cheapflights users on 9/11. 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 10/29:55 amSTI - DCA
1 stop9h 25mJetBlue
Wed 10/225:20 pmDCA - STI
1 stop9h 01mJetBlue
Deal found 9/11$428
This JetBlue deal was found by Cheapflights users on 9/9. 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.
Fri 10/242:00 pmSTI - DCA
1 stop7h 57mJetBlue
Fri 10/318:00 amDCA - STI
1 stop7h 20mJetBlue
Deal found 9/9$429
This SmartFares deal was found by Cheapflights users on 9/9. 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.
Wed 11/54:41 amSTI - DCA
1 stop11h 09mJetBlue
Tue 11/117:00 amDCA - STI
1 stop9h 43mJetBlue
Deal found 9/9$436
This JetBlue deal was found by Cheapflights users on 9/11. 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
Wed 10/226:25 amDCA - STI
1 stop7h 48mJetBlue
Deal found 9/11$451
This Delta deal was found by Cheapflights users on 9/11. 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 11/272:31 pmSTI - DCA
1 stop7h 44mDelta
Wed 12/317:00 amDCA - STI
1 stop11h 17mDelta
Deal found 9/11$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 11, 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

Wed 10/1

12:10 pm-11:25 pm

1 stop11h 15m

Baltimore/Washington

Sun 10/5

7:00 pm-10:38 am

1 stop15h 38m

$312

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Thu 9/25

12:10 pm-11:25 pm

1 stop11h 15m

Baltimore/Washington

Fri 9/26

7:49 pm-11:03 am

1 stop15h 14m

$346

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

$352

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Fri 10/24

11:43 am-2:48 pm

1 stop27h 05m

Baltimore/Washington

Fri 10/31

9:11 pm-10:38 am

2 stops13h 27m

$363

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Thu 11/6

6:18 pm-11:25 am

1 stop18h 07m

Baltimore/Washington

Tue 11/11

7:00 am-5:06 pm

2 stops9h 06m

$367

Santiago de los CaballerosBaltimore

STI - BWI

STIBWI

Santiago de los Caballeros

Fri 10/24

11:43 am-7:02 pm

3 stops31h 19m

Baltimore/Washington

Fri 10/31

8:21 pm-10:38 am

1 stop14h 17m

$408

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Sat 10/11

2:00 pm-9:57 pm

1 stop7h 57m

Washington, D.C. Reagan-National

Sat 10/18

8:00 pm-8:57 am

1 stop12h 57m

$425

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

Sat 10/18

8:00 pm-8:57 am

1 stop12h 57m

$428

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Fri 10/3

12:48 pm-10:56 pm

1 stop10h 08m

Washington, D.C. Reagan-National

Mon 10/20

5:20 pm-2:21 am

1 stop9h 01m

$428

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Thu 10/2

9:55 am-7:20 pm

1 stop9h 25m

Washington, D.C. Reagan-National

Wed 10/22

5:20 pm-2:21 am

1 stop9h 01m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 45 results
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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 11, 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 11, 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
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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 2 different airlines.

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

    For as low as $425, Spirit Airlines can have you in Washington, D.C. from Santiago de los Caballeros in 7h 57m. The distance from Santiago de los Caballeros to Washington, D.C. is about 1397 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying 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. Another airline that can offer you cheap pricing is Delta. JetBlue is 20% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $159. JetBlue flights start at $222 while deals on Delta start at $335 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
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Santiago de los Caballeros to Washington, D.C.

Discover the top 2 airlines 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$426Average$520FlexibilityNo cancel feeOn-time62%
DeltaCheapest$493Average$589FlexibilityNo cancel feeOn-timeN/A

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