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Santiago de los Caballeros

$145+ Cheap flights from District of Columbia 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from District of Columbia to Santiago de los Caballeros

Keep the following information in mind while searching for District of Columbia to Santiago de los Caballeros flight deals. Data was last updated September 11, 2025.

Round-trip from

$409
(Expedia)

One-way from

$145
(SmartFares)

Popular in

December

Cheapest in

January

Average price

$497
From District of Columbia to Santiago de los Caballeros
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One-way flight from District of Columbia to Santiago de los Caballeros
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Highest demand for flights based on searches. 0% potential increase in price ($2 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 District of Columbia to Santiago de los Caballeros

Cheapest flights from District of Columbia to Santiago de los Caballeros
Explore the most affordable flight options available from District of Columbia to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

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.
Sun 10/128:30 amDCA - STI
1 stop28h 20mJetBlue
Sat 11/84:41 amSTI - DCA
1 stop11h 09mJetBlue
Deal found 9/9$408
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 10/248:00 pmDCA - STI
1 stop12h 57mJetBlue
Thu 10/303:43 amSTI - DCA
1 stop11h 07mJetBlue
Deal found 9/9$409
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.
Sat 10/258:00 pmDCA - STI
1 stop11h 19mJetBlue
Sat 11/16:09 amSTI - DCA
1 stop8h 41mJetBlue
Deal found 9/9$410
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:55 pmDCA - STI
1 stop9h 03mJetBlue
Sun 11/167:11 amSTI - DCA
1 stop8h 39mJetBlue
Deal found 9/9$411
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:20 pmDCA - STI
1 stop7h 14mJetBlue
Mon 10/275:07 amSTI - DCA
1 stop9h 43mJetBlue
Deal found 9/10$412
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.
Wed 10/294:55 pmDCA - STI
1 stop9h 03mJetBlue
Sun 11/24:41 amSTI - DCA
1 stop11h 09mJetBlue
Deal found 9/9$432
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:59 pmDCA - STI
1 stop11h 58mJetBlue
Sun 12/710:46 amSTI - DCA
1 stop13h 08mJetBlue
Deal found 9/10$442
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/175:20 pmDCA - STI
1 stop7h 14mJetBlue
Mon 10/275:07 amSTI - DCA
1 stop9h 43mJetBlue
Deal found 9/10$445
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:35 pmDCA - STI
1 stop12h 42mJetBlue
Mon 12/810:11 amSTI - DCA
1 stop13h 18mJetBlue
Deal found 9/10$450
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.
Fri 9/266:19 amDCA - STI
1 stop8h 01mJetBlue
Thu 10/21:12 pmSTI - DCA
1 stop9h 44mJetBlue
Deal found 9/11$452
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amIAD - STI
1 stop7h 53mUnited Airlines
Mon 11/1712:52 pmSTI - IAD
1 stop9h 05mUnited Airlines
Deal found 9/9$467
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:09 pmIAD - STI
1 stop6h 57mDelta
Mon 10/276:00 amSTI - IAD
1 stop13h 18mDelta
Deal found 9/10$485

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 11, 2025.
Use the filters below to find and compare flights from District of Columbia to Santiago de los Caballeros that are best for you.

Fly from

District of Columbia

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 10/12

8:30 am-12:50 pm

1 stop28h 20m

Santiago de los Caballeros

Sat 11/8

4:41 am-2:50 pm

1 stop11h 09m

$408

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 10/25

6:25 am-6:04 pm

1 stop11h 39m

Santiago de los Caballeros

Tue 10/28

6:09 am-2:50 pm

1 stop8h 41m

$409

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 10/24

8:00 pm-8:57 am

1 stop12h 57m

Santiago de los Caballeros

Fri 10/31

6:09 am-2:50 pm

1 stop8h 41m

$409

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 10/25

8:00 pm-7:19 am

1 stop11h 19m

Santiago de los Caballeros

Sat 11/1

6:09 am-2:50 pm

1 stop8h 41m

$410

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 11/13

4:55 pm-2:58 am

1 stop9h 03m

Santiago de los Caballeros

Sat 11/15

4:41 am-2:50 pm

1 stop11h 09m

$411

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 10/20

5:20 pm-12:34 am

1 stop7h 14m

Santiago de los Caballeros

Mon 10/27

5:07 am-2:50 pm

1 stop9h 43m

$412

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 10/29

4:55 pm-1:58 am

1 stop9h 03m

Santiago de los Caballeros

Sun 11/2

4:41 am-2:50 pm

1 stop11h 09m

$432

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Mon 10/20

12:09 pm-7:06 pm

1 stop6h 57m

Santiago de los Caballeros

Mon 10/27

6:00 am-7:18 pm

1 stop13h 18m

$485

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Sat 10/25

12:09 pm-12:24 am

1 stop12h 15m

Santiago de los Caballeros

Tue 10/28

8:31 pm-11:57 am

1 stop15h 26m

$485

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Mon 10/20

8:30 am-3:12 pm

1 stop6h 42m

Santiago de los Caballeros

Sun 11/16

4:00 pm-10:58 pm

1 stop7h 58m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 36 results
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Best time to book a flight from District of Columbia to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from District of Columbia 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 District of Columbia to Santiago de los Caballeros

What is the cheapest month to book a flight from District of Columbia to Santiago de los Caballeros?

Currently, May is the cheapest month in which you can book a flight from District of Columbia to Santiago de los Caballeros (average of $347). Flying from District of Columbia 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 DC to STI?

Find hourly flight availability from District of Columbia 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 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Santiago de los Caballeros as you normally would.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    For a flight from District of Columbia to Santiago de los Caballeros, you will be flying into Santiago. Santiago de los Caballeros (STI) is just 6.8 mi from the center of the city.

  • How long is the flight from District of Columbia to Santiago de los Caballeros?

    For as low as $486, JetBlue can have you in Santiago de los Caballeros from District of Columbia in 6h 42m. The distance from District of Columbia to Santiago de los Caballeros is about 1410 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from District of Columbia to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia 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 District of Columbia to Santiago de los Caballeros.

  • Can I find deals for business class flights from District of Columbia to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Santiago de los Caballeros?

    Currently, May is the cheapest month in which you can book a flight from District of Columbia to Santiago de los Caballeros (average of $347). Flying from District of Columbia 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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Alternative routes for District of Columbia to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from District of Columbia to Santiago de los Caballeros

Discover the top 5 airlines that operate flights from District of Columbia 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$322Average$501FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$430Average$575FlexibilityNo cancel feeOn-time62%
DeltaCheapest$483Average$599FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$652FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$488Average$732FlexibilityNo cancel feeOn-time69%

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