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

$212 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $281 and $296, respectively.

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.

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.

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).

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 $593. You can even find prices in September for less than $593, 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 59%.

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.

$212+ 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 23 days early can save you up to 268% on average compared to booking a flight this week. If booking 23 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 $485 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 $757 for flights departing within the next 3 days.

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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Santiago de los Caballeros are usually found in September or January, booked 65 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

Round-trip from	$447 (JetBlue)
One-way from	$212 (JetBlue)
Popular in	December
Cheapest in	September
Average price	$597

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

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One-way flight from Washington, D.C. Reagan-National to Santiago de los Caballeros

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Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 3, 2025.

Sun 9/145:30 pmDCA - STI

1 stop8h 46mJetBlue

Tue 9/2310:10 amSTI - DCA

1 stop8h 46mJetBlue

Deal found 7/3

$447

Sun 11/2311:00 amDCA - STI

1 stop13h 26mDelta

Wed 12/36:45 amSTI - DCA

1 stop12h 20mDelta

Deal found 7/3

$465

Tue 9/166:00 amDCA - STI

1 stop6h 27mAmerican Airlines

Tue 9/231:29 pmSTI - DCA

2 stops18h 01mAmerican Airlines

Deal found 7/3

$469

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 July 3, 2025.

Sun 9/146:25 amDCA - STI

1 stop11h 38mJetBlue

Thu 9/2512:48 pmSTI - DCA

1 stop10h 08mJetBlue

Deal found 7/3

$447

Thu 8/145:05 amDCA - STI

1 stop15h 43mAmerican Airlines

Thu 8/217:00 amSTI - DCA

1 stop11h 26mAmerican Airlines

Deal found 7/2

$465

Tue 7/811:00 amDCA - STI

1 stop13h 47mDelta

Tue 7/156:03 amSTI - DCA

1 stop12h 11mDelta

Deal found 7/1

$545

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 July 3, 2025 and is based on user searches.

Tue 7/811:00 amDCA - STI

1 stop13h 47mDelta

Tue 7/156:03 amSTI - DCA

1 stop12h 11mDelta

Deal found 7/1

$545

Wed 7/98:00 amDCA - STI

1 stop8h 02mJetBlue

Tue 7/157:40 amSTI - DCA

1 stop13h 19mJetBlue

Deal found 7/1

$535

Sun 7/138:05 pmDCA - STI

1 stop16h 24mAmerican Airlines

Fri 7/187:04 amSTI - DCA

1 stop14h 56mAmerican Airlines

Deal found 7/3

$565

Thu 8/145:05 amDCA - STI

1 stop15h 43mAmerican Airlines

Thu 8/217:00 amSTI - DCA

1 stop11h 26mAmerican Airlines

Deal found 7/2

$465

Sat 8/303:35 pmDCA - STI

1 stop10h 03mJetBlue

Sat 9/62:35 pmSTI - DCA

1 stop7h 21mJetBlue

Deal found 7/2

$447

One-way flights from Reagan-National to Santiago de los Caballeros
Search for one-way flight options from Reagan-National to Santiago de los Caballeros. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Sat 8/1611:45 amDCA - STI

1 stop10h 24mJetBlue

Deal found 7/2

$212

Wed 8/2710:04 amDCA - STI

2 stops10h 44mAmerican Airlines

Deal found 7/2

$281

Wed 7/911:00 amDCA - STI

1 stop13h 47mDelta

Deal found 7/2

$296

Fri 7/117:00 amDCA - STI

3 stops50h 50mMultiple Airlines

Deal found 7/2

$653

Sat 8/1610:30 amDCA - STI

2 stops15h 16mUnited Airlines

Deal found 7/2

$1,846

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

Sun 9/14

6:25 am-6:03 pm

1 stop11h 38m

Santiago de los Caballeros

Mon 9/22

12:48 pm-10:56 pm

1 stop10h 08m

$447

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 11/23

11:00 am-1:26 am

1 stop13h 26m

Santiago de los Caballeros

Tue 12/9

6:45 am-10:19 pm

1 stop16h 34m

$465

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 9/16

6:00 am-12:27 pm

1 stop6h 27m

Santiago de los Caballeros

Tue 9/23

1:29 pm-7:30 am

2 stops18h 01m

$469

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 8/16

11:45 am-10:09 pm

1 stop10h 24m

$212

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 8/27

10:04 am-8:48 pm

2 stops10h 44m

$281

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 7/9

11:00 am-12:47 am

1 stop13h 47m

$296

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 7/11

7:00 am-9:50 am

3 stops50h 50m

$653

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 8/16

10:30 am-1:46 am

2 stops15h 16m

$1,846

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 $629). 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.

Reviews of airlines servicing Santiago de los Caballeros

Read reviews from past customers who have flown Delta, United Airlines, and JetBlue from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

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

7,982 reviews

Delta

8.0

Very good

7,982 reviews

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

8,861 reviews

Delta

8.0

Very good

7,982 reviews

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

7.3

Good

2,916 reviews

Delta

8.0

Very good

7,982 reviews

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

7,982 reviews

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

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 ($447), American Airlines ($465), and Delta ($545) 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.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros one-way?
$212 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $281 and $296, 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 $629). 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$427	Average$570	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$483	Average$599	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$484	Average$670	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$518	Average$760	FlexibilityNo cancel fee	On-time69%

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$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 8/16. 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

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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 September or January, booked 65 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

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One-way from

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Cheapest in

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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 July 3, 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 July 3, 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.

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 June 27, 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 July 3, 2025.

Reviews of airlines servicing Santiago de los Caballeros

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?

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

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 July 3, 2025.