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Santiago de los Caballeros

$151+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — STI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$327
(Cheapflightsfares)

One-way from

$151
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$559
From Washington, D.C. (WAS) to Santiago de los Caballeros
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One-way flight from Washington, D.C. (WAS) to Santiago de los Caballeros
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Highest demand for flights based on searches. 2% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 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 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 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 10/167:00 pmBWI - STI
1 stop15h 38mSpirit Airlines
Thu 10/2311:43 amSTI - BWI
1 stop11h 49mSpirit Airlines
Deal found 9/16$327
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.
Fri 10/248:21 pmBWI - STI
1 stop14h 17mSpirit Airlines
Fri 11/76:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Deal found 9/17$331
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.
Thu 12/410:48 amBWI - STI
1 stop5h 18mSpirit Airlines
Sun 12/76:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Deal found 9/15$335
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:17 pmBWI - STI
1 stop15h 21mSpirit Airlines
Sat 11/86:18 pmSTI - BWI
1 stop6h 36mSpirit Airlines
Deal found 9/17$336
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:30 pmBWI - STI
2 stops14h 08mSpirit Airlines
Mon 10/2711:43 amSTI - BWI
1 stop11h 49mSpirit Airlines
Deal found 9/16$337
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.
Sat 10/187:00 pmBWI - STI
1 stop15h 38mSpirit Airlines
Sun 10/2611:43 amSTI - BWI
1 stop9h 35mSpirit Airlines
Deal found 9/15$347
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:21 pmBWI - STI
1 stop14h 17mSpirit Airlines
Sun 10/2611:43 amSTI - BWI
1 stop29h 15mSpirit Airlines
Deal found 9/16$351
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/268:00 amDCA - STI
1 stop7h 13mJetBlue
Fri 10/313:43 amSTI - DCA
1 stop11h 07mJetBlue
Deal found 9/17$392
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:51 pmDCA - STI
1 stop12h 06mJetBlue
Sun 2/85:15 amSTI - DCA
1 stop10h 19mJetBlue
Deal found 9/16$393
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:20 pmDCA - STI
1 stop9h 01mJetBlue
Thu 10/232:00 pmSTI - DCA
1 stop7h 59mJetBlue
Deal found 9/16$407
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:25 amDCA - STI
1 stop7h 48mJetBlue
Mon 10/275:07 amSTI - DCA
1 stop9h 43mJetBlue
Deal found 9/16$409
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:55 pmDCA - STI
1 stop9h 03mJetBlue
Sat 11/87:11 amSTI - DCA
1 stop8h 39mJetBlue
Deal found 9/17$411

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 September 17, 2025.
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

Washington, D.C.

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 10/16

7:00 pm-10:38 am

1 stop15h 38m

Santiago de los Caballeros

Thu 10/23

11:43 am-9:18 pm

1 stop9h 35m

$327

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Fri 10/24

5:55 pm-10:38 am

1 stop16h 43m

Santiago de los Caballeros

Mon 10/27

11:43 am-11:32 pm

1 stop11h 49m

$327

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Fri 10/24

8:21 pm-10:38 am

1 stop14h 17m

Santiago de los Caballeros

Fri 11/7

6:18 pm-11:54 pm

1 stop6h 36m

$331

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 11/1

9:00 pm-11:38 am

2 stops14h 38m

Santiago de los Caballeros

Sat 11/8

6:18 pm-11:54 pm

1 stop6h 36m

$340

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 10/18

8:17 pm-10:38 am

1 stop14h 21m

Santiago de los Caballeros

Sun 10/26

11:43 am-9:18 pm

1 stop9h 35m

$362

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Wed 11/5

5:10 am-5:06 pm

1 stop10h 56m

Santiago de los Caballeros

Sat 11/8

6:18 pm-11:54 pm

1 stop6h 36m

$365

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 11/8

10:48 am-5:06 pm

1 stop5h 18m

Santiago de los Caballeros

Mon 11/10

6:18 pm-11:54 pm

1 stop6h 36m

$377

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 11/6

10:48 am-5:06 pm

1 stop5h 18m

Santiago de los Caballeros

Sat 11/8

6:18 pm-11:54 pm

1 stop6h 36m

$379

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 10/26

8:00 am-3:13 pm

1 stop7h 13m

Santiago de los Caballeros

Fri 10/31

3:43 am-2:50 pm

1 stop11h 07m

$392

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 10/23

6:25 am-2:13 pm

1 stop7h 48m

Santiago de los Caballeros

Mon 10/27

5:07 am-2:50 pm

1 stop9h 43m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 52 results
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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

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Santiago de los Caballeros (average of $347). Flying from Washington, D.C. to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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 WAS to STI?

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Santiago de los Caballeros in the morning. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Washington, D.C. to Santiago de los Caballeros?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Santiago de los Caballeros. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Santiago de los Caballeros flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 17, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines 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
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.2
Good
2,914 reviews
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,023 reviews
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    Spirit Airlines, JetBlue, and Delta can get you from Washington, D.C. to Santiago de los Caballeros in just under 6h 25m. Your travel time can differ by up to 9h 13m. 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 ($427), Delta ($483), and American Airlines ($484) offers the cheapest pricing from Washington, D.C. to Santiago de los Caballeros. JetBlue is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from Washington, D.C. to Santiago de los Caballeros (average of $347). Flying from Washington, D.C. to Santiago de los Caballeros in July is currently the most expensive (average of $600). 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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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$322Average$501FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$427Average$572FlexibilityNo cancel feeOn-time62%
DeltaCheapest$483Average$599FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$650FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$488Average$732FlexibilityNo cancel feeOn-time69%

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