Santiago de los Caballeros

$212+ Cheap flights from Reagan-National (DCA) 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — STI
Apr 2 — Apr 91
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Santiago de los Caballeros 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.

Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Santiago de los Caballeros are usually found in January or September, booked 67 days in advance, depart on a Sunday or Friday and return on a Saturday

Cheap flight deals from Reagan-National to Santiago de los Caballeros

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$410
(JetBlue)

One-way from

$268
(JetBlue)

Popular in

December

Cheapest in

January

Average price

$540
Provider with most accurate pricing for Washington, D.C. Reagan-National-Santiago de los Caballeros flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Santiago de los Caballeros flights.
From Washington, D.C. Reagan-National to Santiago de los Caballeros
One-way flight from Washington, D.C. Reagan-National to Santiago de los Caballeros
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in March 2025

Find flight deals from Reagan-National to Santiago de los Caballeros

Cheapest flights from Reagan-National to Santiago de los Caballeros
Explore the most affordable flight options available from Reagan-National to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This JetBlue deal was found by Cheapflights users on 3/27. 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 5/1412:45 pmDCA - STI
1 stop11h 59mJetBlue
Wed 5/2110:00 amSTI - DCA
1 stop12h 58mJetBlue
Deal found 3/27$410
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/113:00 pmDCA - STI
1 stop6h 45mAmerican Airlines
Fri 8/228:15 amSTI - DCA
1 stop13h 32mAmerican Airlines
Deal found 3/27$485
This Delta deal was found by Cheapflights users on 3/26. 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.
Tue 4/14:25 pmDCA - STI
1 stop8h 44mDelta
Fri 4/41:22 pmSTI - DCA
1 stop9h 20mDelta
Deal found 3/26$515
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/147:18 pmDCA - STI
1 stop6h 28mUnited Airlines
Sat 4/196:00 amSTI - DCA
1 stop8h 26mUnited Airlines
Deal found 3/27$704
This flygcity.se deal was found by Cheapflights users on 3/26. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:50 pmDCA - STI
2 stops19h 10mBritish Airways
Sat 5/173:25 pmSTI - DCA
2 stops8h 34mBritish Airways
Deal found 3/26$872

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National 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 March 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros that are best for you.

Fly from

Reagan-National

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

Wed 5/14

12:45 pm-12:44 am

1 stop11h 59m

Santiago de los Caballeros

Wed 5/21

10:00 am-10:58 pm

1 stop12h 58m

$410

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 4/26

6:00 am-2:14 pm

1 stop8h 14m

Santiago de los Caballeros

Thu 5/8

3:50 pm-9:28 am

2 stops17h 38m

$489

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/1

4:25 pm-1:09 am

1 stop8h 44m

Santiago de los Caballeros

Fri 4/4

1:22 pm-10:42 pm

1 stop9h 20m

$515

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 4/14

7:18 pm-1:46 am

1 stop6h 28m

Santiago de los Caballeros

Sat 4/19

6:00 am-2:26 pm

1 stop8h 26m

$704

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 5/10

7:50 pm-3:00 pm

2 stops19h 10m

Santiago de los Caballeros

Sat 5/17

3:25 pm-11:59 pm

2 stops8h 34m

$872

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 5/20

1:59 pm-12:44 am

1 stop10h 45m

$212

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 4/7

11:38 am-7:01 pm

1 stop7h 23m

$281

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/1

5:00 am-1:21 pm

2 stops8h 21m

$326

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 4/13

7:00 am-3:12 pm

1 stop8h 12m

$409

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/3

5:38 pm-5:30 pm

3 stops23h 52m

$967

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Compare providers for flights from Reagan-National to Santiago de los Caballeros

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Santiago de los Caballeros in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Reagan-National 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. Reagan-National Airport to Santiago de los Caballeros

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Santiago de los Caballeros. Price data was last updated on March 21, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros (average of $347). Flying from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros in July is currently the most expensive (average of $631). 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 DCA to STI?

Find hourly flight availability from Reagan-National 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 March 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 21% on flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros by exploring options for tickets in the morning.

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

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

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

Rainfall in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

Temperature in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

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 March 28, 2025.
To help decide which airline to fly from Washington, D.C. to Santiago de los Caballeros, see what other customers have to say about Delta, United Airlines and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    Most people fly into Santiago de los Caballeros (STI) if they book a flight to Santiago de los Caballeros from Washington, D.C. Reagan-National. On average, Santiago has 0 inbound flights from Washington, D.C. Reagan-National per day from 4 airlines. Santiago de los Caballeros is conveniently located just 6.8 mi from Santiago de los Caballeros’s city center.

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

    According to our current data, JetBlue ($410), American Airlines ($489), and Delta ($515) offers the cheapest pricing from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros. You may be able to fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros for 32% less than the average price by searching for these airlines.

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

    $268 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $326 and $332, respectively.

  • Can I find deals for flights from Reagan-National to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National 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 Reagan-National to Santiago de los Caballeros.

  • Can I find deals for business class flights from Reagan-National to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Santiago de los Caballeros?

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros (average of $347). Flying from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros in July is currently the most expensive (average of $631). 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

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 4 airlines flying from Reagan-National to Santiago de los Caballeros

Discover the top 4 airlines that operate flights from Reagan-National 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$383Average$566FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$437Average$762FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$455Average$643FlexibilityNo cancel feeOn-time71%
DeltaCheapest$483Average$589FlexibilityNo cancel feeOn-timeN/A
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.