Santiago de los Caballeros

$141+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — STI
Aug 18 — Aug 251
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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 August 13, 2025.

Round-trip from

$302
(Cheapflightsfares)

One-way from

$141
(FlightHub)

Popular in

August

Cheapest in

September

Average price

$719
From Washington, D.C. (WAS) to Santiago de los Caballeros
One-way flight from Washington, D.C. (WAS) to Santiago de los Caballeros
High demand for flights, 1% potential price rise
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in August 2025

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 August 13, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:49 pmBWI - STI
1 stop15h 14mSpirit Airlines
Wed 9/1712:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/11$302
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 9/265:46 pmBWI - STI
1 stop17h 17mSpirit Airlines
Tue 9/3012:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/12$316
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:49 pmBWI - STI
1 stop15h 14mSpirit Airlines
Wed 9/1012:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/11$317
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:38 amBWI - STI
1 stop25h 25mSpirit Airlines
Thu 9/1112:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/11$321
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Thu 9/117:49 pmBWI - STI
1 stop15h 14mSpirit Airlines
Thu 9/1812:10 pmSTI - BWI
1 stop9h 10mSpirit Airlines
Deal found 8/12$323
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
Tue 9/25:11 pmBWI - STI
1 stop16h 04mSpirit Airlines
Sun 9/712:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/12$325
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 9/278:16 pmBWI - STI
1 stop14h 47mSpirit Airlines
Wed 10/112:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/13$331
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1011:02 amBWI - STI
2 stops24h 01mSpirit Airlines
Mon 9/1512:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/11$336
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
Sun 9/287:49 pmBWI - STI
1 stop15h 14mSpirit Airlines
Fri 10/312:10 pmSTI - BWI
1 stop11h 15mSpirit Airlines
Deal found 8/12$340
This JetBlue deal was found by Cheapflights users on 8/12. 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 11/136:15 pmDCA - STI
1 stop13h 04mJetBlue
Tue 11/189:29 amSTI - DCA
1 stop8h 33mJetBlue
Deal found 8/12$437
This JetBlue deal was found by Cheapflights users on 8/11. 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 9/185:42 pmDCA - STI
1 stop8h 39mJetBlue
Thu 9/2510:10 amSTI - DCA
1 stop8h 06mJetBlue
Deal found 8/11$441
This Expedia deal was found by Cheapflights users on 8/12. 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 9/254:00 pmDCA - STI
1 stop16h 59mJetBlue
Mon 9/295:15 amSTI - DCA
1 stop14h 05mJetBlue
Deal found 8/12$446

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 August 13, 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

Wed 9/10

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Wed 9/17

12:10 pm-11:25 pm

1 stop11h 15m

$302

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Fri 9/26

5:46 pm-11:03 am

1 stop17h 17m

Santiago de los Caballeros

Tue 9/30

12:10 pm-11:25 pm

1 stop11h 15m

$316

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 9/4

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Wed 9/10

12:10 pm-11:25 pm

1 stop11h 15m

$317

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Wed 9/10

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Mon 9/15

12:10 pm-11:25 pm

1 stop11h 15m

$317

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 9/30

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Wed 10/8

12:10 pm-11:01 am

1 stop22h 51m

$321

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 9/4

9:38 am-11:03 am

1 stop25h 25m

Santiago de los Caballeros

Thu 9/11

12:10 pm-11:25 pm

1 stop11h 15m

$321

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 9/11

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Thu 9/18

12:10 pm-9:20 pm

1 stop9h 10m

$323

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 9/2

5:11 pm-9:15 am

1 stop16h 04m

Santiago de los Caballeros

Sun 9/7

12:10 pm-11:25 pm

1 stop11h 15m

$325

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Fri 10/10

8:28 pm-11:05 am

1 stop14h 37m

Santiago de los Caballeros

Tue 10/14

12:10 pm-2:47 pm

1 stop26h 37m

$330

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Mon 9/29

5:46 pm-11:03 am

1 stop17h 17m

Santiago de los Caballeros

Fri 10/3

12:10 pm-11:25 pm

1 stop11h 15m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 46 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 $601). 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 August 13, 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 August 13, 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.
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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!
8.0
Very good
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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!
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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!
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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!
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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!
8.0
Very good

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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.

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

    According to our current data, Spirit Airlines ($302), JetBlue ($437), and Copa Airlines ($449) offers the cheapest pricing from Washington, D.C. to Santiago de los Caballeros. Spirit Airlines is priced at 47% 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?

  • 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 $601). 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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$346Average$521FlexibilityNo cancel feeOn-time65%
DeltaCheapest$402Average$511FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$427Average$575FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$484Average$673FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$518Average$740FlexibilityNo cancel feeOn-time69%

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