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

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.

What are the most popular airlines that fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

The most popular airlines flying from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros are American Airlines, JetBlue and Delta. Something to consider prior to booking your flight.

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

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 24% on your flight compared to booking on days when demand is much higher.

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

The best pricing can be found in the month of September. Prices to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport average $582. You can even find prices in September for less than $582, as users have found deals to Santiago de los Caballeros from as low as $300. The month of December appears to be one of the more expensive times to travel to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport. Flying in the targeted month can save you up to 62%.

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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

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.

$290+ Flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

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

Users have found that booking a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros at least 41 days early can save you up to 87% on average compared to booking a flight this week. If booking 41 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros for as little as $406 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $798 for flights departing within the next 3 days.

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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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$445 (JetBlue)
Popular in	December
Cheapest in	January
Average price	$583

Provider with most accurate pricing for Washington, D.C. Reagan-National-Santiago de los Caballeros flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Santiago de los Caballeros flights.

Search Deals

From Washington, D.C. Reagan-National to Santiago de los Caballeros

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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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 April 17, 2025.

Fri 5/166:55 pmDCA - STI

1 stop12h 23mJetBlue

Fri 5/238:45 amSTI - DCA

1 stop14h 13mJetBlue

Deal found 4/16

$445

Tue 9/28:12 pmDCA - STI

1 stop16h 08mAmerican Airlines

Mon 9/151:35 pmSTI - DCA

1 stop8h 25mAmerican Airlines

Deal found 4/17

$465

Tue 4/2211:00 amDCA - STI

1 stop7h 41mDelta

Tue 4/291:24 pmSTI - DCA

1 stop9h 21mDelta

Deal found 4/16

$640

Fri 5/239:40 amDCA - STI

2 stops33h 10mMultiple Airlines

Thu 6/53:53 pmSTI - DCA

3 stops18h 26mMultiple Airlines

Deal found 4/15

$1,833

Best flights from Reagan-National to Santiago de los Caballeros
Discover carefully curated flight deals from Reagan-National to Santiago de los Caballeros that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Fri 5/166:55 pmDCA - STI

1 stop12h 23mJetBlue

Fri 5/238:45 amSTI - DCA

1 stop14h 13mJetBlue

Deal found 4/16

$445

Fri 7/115:00 amDCA - STI

1 stop16h 10mAmerican Airlines

Tue 7/151:30 pmSTI - DCA

1 stop8h 30mAmerican Airlines

Deal found 4/16

$485

Tue 4/2211:00 amDCA - STI

1 stop7h 41mDelta

Tue 4/291:24 pmSTI - DCA

1 stop9h 21mDelta

Deal found 4/16

$640

Fri 5/239:40 amDCA - STI

2 stops33h 10mMultiple Airlines

Thu 6/53:53 pmSTI - DCA

3 stops18h 26mMultiple Airlines

Deal found 4/15

$1,833

Last-minute flights from Reagan-National to Santiago de los Caballeros
Discover last-minute flight deals from Reagan-National to Santiago de los Caballeros. Data last updated April 17, 2025 and is based on user searches.

Tue 4/2211:00 amDCA - STI

1 stop7h 41mDelta

Tue 4/291:24 pmSTI - DCA

1 stop9h 21mDelta

Deal found 4/16

$640

Fri 4/257:00 amDCA - STI

1 stop12h 49mJetBlue

Fri 5/98:45 amSTI - DCA

1 stop14h 13mJetBlue

Deal found 4/16

$523

Fri 4/255:00 amDCA - STI

2 stops9h 26mAmerican Airlines

Fri 5/93:50 pmSTI - DCA

2 stops17h 38mAmerican Airlines

Deal found 4/16

$1,069

Sat 5/105:00 amDCA - STI

1 stop9h 35mAmerican Airlines

Wed 5/143:50 pmSTI - DCA

2 stops17h 38mAmerican Airlines

Deal found 4/17

$569

Fri 5/166:55 pmDCA - STI

1 stop12h 23mJetBlue

Fri 5/238:45 amSTI - DCA

1 stop14h 13mJetBlue

Deal found 4/16

$445

Fri 5/239:40 amDCA - STI

2 stops33h 10mMultiple Airlines

Thu 6/53:53 pmSTI - DCA

3 stops18h 26mMultiple Airlines

Deal found 4/15

$1,833

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 5/16

6:55 pm-7:18 am

1 stop12h 23m

Santiago de los Caballeros

Fri 5/23

8:45 am-10:58 pm

1 stop14h 13m

$445

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 7/11

5:00 am-9:10 pm

1 stop16h 10m

Santiago de los Caballeros

Tue 7/15

1:30 pm-10:00 pm

1 stop8h 30m

$485

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/22

11:00 am-6:41 pm

1 stop7h 41m

Santiago de los Caballeros

Tue 4/29

1:24 pm-10:45 pm

1 stop9h 21m

$640

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 5/23

9:40 am-6:50 pm

2 stops33h 10m

Santiago de los Caballeros

Thu 6/5

3:53 pm-10:19 am

3 stops18h 26m

$1,833

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/24

7:00 am-7:49 pm

1 stop12h 49m

$290

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/24

10:22 pm-2:26 pm

2 stops16h 04m

$632

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 4/24

5:47 pm-1:00 pm

3 stops43h 13m

$729

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

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

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Reagan-National Airport-Santiago de los Caballeros flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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?

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?

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.

Rainfall in Santiago de los Caballeros 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

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

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, JetBlue and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,916 reviews

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.

Delta

8.0

Very good

7,916 reviews

Delta

8.0

Very good

7,916 reviews

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.

JetBlue

7.3

Good

2,926 reviews

Delta

8.0

Very good

7,916 reviews

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.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,916 reviews

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

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 ($445), American Airlines ($485), and Delta ($640) 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 26% less than the average price by searching for these airlines.
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

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

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$394	Average$566	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$436	Average$643	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$437	Average$762	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$483	Average$603	FlexibilityNo cancel fee	On-timeN/A

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$290+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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

Cheapest flights from Reagan-National to Santiago de los CaballerosExplore 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 April 17, 2025.

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 April 17, 2025.

Cheapflights Fare Finder

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.

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 April.

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.

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 April 11, 2025.

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

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 April 17, 2025.

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.

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.

Reviews of airlines servicing Santiago de los Caballeros

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, JetBlue and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I 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?

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

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.

Alternative routes for Reagan-National to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.

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

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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 April 17, 2025.