In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July 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 35.6 F).

What is the cheapest time of day to fly from STI to DCA?

When flying from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most trusted provider : When it comes to deals on Santiago de los Caballeros-Washington, D.C. Reagan-National Airport 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 Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Santiago de los Caballeros to Washington, D.C. Reagan-National?

If you book a flight to Washington, D.C. Reagan-National from Santiago de los Caballeros, you will be flying from Santiago, which is the city’s only airport. Santiago de los Caballeros (STI) is located 6.8 mi from the center of Santiago de los Caballeros. There are 0 flights from Santiago to Washington, D.C. Reagan-National per day from 0 different airlines.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santiago de los Caballeros to Reagan-National.

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

Yes. Cheapflights offers flight deals from Santiago de los Caballeros to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$242+ Cheap Flights from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport

Q: E

Most accurate provider : When it comes to deals on Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.

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

Cheapest

Best

Last-minute

One-way

Cheapest flights from Santiago de los Caballeros to Reagan-National
Explore the most affordable flight options available from Santiago de los Caballeros to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.

Fri 11/207:00 am -

1 stop16h 26m

Mon 1/1111:00 am -

1 stop11h 50m

Deal found 10/20

$479

Wed 11/189:25 pm -

1 stop13h 37m

Mon 1/1111:00 am -

1 stop11h 50m

Deal found 10/19

$483

Wed 11/186:00 am -

1 stop11h 28m

Mon 1/117:40 pm -

1 stop15h 09m

Deal found 10/20

$495

Wed 11/187:00 am -

1 stop10h 37m

Sun 1/106:05 am -

1 stop11h 35m

Deal found 10/19

$547

Sun 11/229:25 pm -

1 stop13h 37m

Wed 1/139:00 am -

2 stops13h 50m

Deal found 10/20

$548

Sat 11/217:00 am -

1 stop10h 37m

Sun 11/225:02 pm -

1 stop6h 57m

Deal found 10/19

$551

Sat 11/217:00 am -

1 stop10h 37m

Wed 1/1311:00 am -

1 stop6h 40m

Deal found 10/19

$558

Sun 11/229:25 pm -

1 stop13h 37m

Tue 1/1211:00 am -

1 stop6h 40m

Deal found 10/20

$566

Sat 11/1411:00 am -

1 stop7h 19m

Sat 11/217:50 pm -

1 stop11h 31m

Deal found 10/16

$570

Sat 11/219:25 pm -

2 stops15h 06m

Tue 1/1212:05 pm -

2 stops10h 45m

Deal found 10/19

$573

Mon 11/236:00 am -

1 stop7h 29m

Sun 1/101:25 pm -

1 stop9h 26m

Deal found 10/19

$575

Best flights from Santiago de los Caballeros to Reagan-National
Discover carefully curated flight deals from Santiago de los Caballeros to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.

Fri 11/207:00 am -

1 stop10h 37m

Tue 1/1211:00 am -

1 stop6h 40m

Deal found 10/19

$479

Mon 11/236:00 am -

1 stop7h 29m

Tue 11/244:05 pm -

1 stop6h 46m

Deal found 10/19

$483

Sat 11/1411:00 am -

1 stop7h 19m

Sat 11/217:50 pm -

1 stop11h 31m

Deal found 10/16

$570

Fri 11/207:00 am -

1 stop16h 26m

Mon 1/1111:00 am -

1 stop11h 50m

Deal found 10/20

$479

Tue 11/246:00 am -

1 stop10h 28m

Tue 1/124:05 pm -

1 stop6h 46m

Deal found 10/20

$495

Thu 11/192:32 pm -

1 stop8h 54m

Sun 1/106:05 am -

1 stop11h 35m

Deal found 10/19

$547

Thu 2/46:00 am -

1 stop7h 47m

Mon 2/811:05 am -

1 stop11h 46m

Deal found 10/20

$564

Sun 11/229:25 pm -

1 stop13h 37m

Wed 1/136:05 am -

1 stop11h 35m

Deal found 10/20

$548

Last-minute flights from Santiago de los Caballeros to Reagan-National
Discover last-minute flight deals from Santiago de los Caballeros to Reagan-National. Data last updated October 22, 2026 and is based on user searches.

Sat 11/1411:00 am -

1 stop7h 19m

Sat 11/217:50 pm -

1 stop11h 31m

Deal found 10/16

$570

Wed 11/189:25 pm -

1 stop13h 37m

Mon 1/1111:00 am -

1 stop11h 50m

Deal found 10/19

$483

Wed 11/186:00 am -

1 stop11h 28m

Mon 1/117:40 pm -

1 stop15h 09m

Deal found 10/20

$495

Wed 11/187:00 am -

1 stop10h 37m

Sun 1/106:05 am -

1 stop11h 35m

Deal found 10/19

$547

Fri 11/207:00 am -

1 stop16h 26m

Mon 1/1111:00 am -

1 stop11h 50m

Deal found 10/20

$479

Sat 11/217:00 am -

1 stop10h 37m

Sun 11/225:02 pm -

1 stop6h 57m

Deal found 10/19

$551

Sat 11/217:00 am -

1 stop10h 37m

Wed 1/1311:00 am -

1 stop6h 40m

Deal found 10/19

$558

Sat 11/219:25 pm -

2 stops15h 06m

Tue 1/1212:05 pm -

2 stops10h 45m

Deal found 10/19

$573

Sun 11/229:25 pm -

1 stop13h 37m

Wed 1/136:05 am -

1 stop11h 35m

Deal found 10/20

$548

Sun 11/229:25 pm -

1 stop13h 37m

Tue 1/1211:00 am -

1 stop6h 40m

Deal found 10/20

$566

Mon 11/236:00 am -

1 stop7h 29m

Sun 1/101:25 pm -

1 stop9h 26m

Deal found 10/19

$575

One-way flights from Santiago de los Caballeros to Reagan-National
Search for one-way flight options from Santiago de los Caballeros to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.

Fri 11/1311:00 am -

1 stop7h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$242

Fri 11/137:00 am -

1 stop10h 37m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$243

Wed 11/1811:00 am -

1 stop7h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/17

$255

Fri 11/135:08 pm -

1 stop17h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/19

$260

Fri 10/302:18 pm -

1 stop7h 41m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/20

$270

Mon 11/26:00 am -

1 stop16h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/18

$311

Sat 10/3110:00 am -

1 stop7h 23m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/18

$385

Mon 11/309:25 pm -

1 stop13h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/19

$402

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$479 (Delta)
One-way from	$242 (JetBlue)
Popular in	June
Cheapest in	May
Average price	$529

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

Search Deals

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

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($103 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Fri 11/13

11:00 am-5:19 pm

1 stop7h 19m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 am

Nonstop0h 00m

$242

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Fri 11/13

7:00 am-4:37 pm

1 stop10h 37m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 am

Nonstop0h 00m

$243

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Wed 11/18

11:00 am-5:19 pm

1 stop7h 19m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 am

Nonstop0h 00m

$255

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Mon 11/23

9:31 am-5:35 pm

1 stop9h 04m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 am

Nonstop0h 00m

$255

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Wed 11/18

7:00 am-10:45 pm

2 stops16h 45m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 am

Nonstop0h 00m

$262

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Fri 11/20

7:00 am-4:37 pm

1 stop10h 37m

Washington, D.C. Reagan-National

Tue 1/12

11:00 am-6:40 pm

1 stop6h 40m

$479

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Fri 11/20

7:00 am-10:26 pm

1 stop16h 26m

Washington, D.C. Reagan-National

Mon 1/11

11:00 am-11:50 pm

1 stop11h 50m

$479

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Mon 11/23

6:00 am-12:29 pm

1 stop7h 29m

Washington, D.C. Reagan-National

Tue 11/24

4:05 pm-11:51 pm

1 stop6h 46m

$483

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Tue 11/24

6:00 am-3:28 pm

1 stop10h 28m

Washington, D.C. Reagan-National

Tue 1/12

4:05 pm-11:51 pm

1 stop6h 46m

$495

Santiago de los CaballerosWashington, D.C.

STI Santiago de los Caballeros - DCA Washington, D.C. Reagan-National

STIDCA

Santiago de los Caballeros

Thu 11/19

2:32 pm-10:26 pm

1 stop8h 54m

Washington, D.C. Reagan-National

Sun 1/10

6:05 am-6:40 pm

1 stop11h 35m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 13 resultsSorted by cheapest first

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

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santiago de los Caballeros to Reagan-National in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Super.com	Price Accuracy-	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 Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santiago de los Caballeros-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Santiago de los Caballeros-Washington, D.C. Reagan-National Airport 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 Santiago de los Caballeros-Washington, D.C. Reagan-National Airport 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 Santiago de los Caballeros to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Santiago de los Caballeros with our price prediction graph.

STI-DCA

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.

Related info for your journey

What airport do you fly from for flights from Santiago de los Caballeros to Washington, D.C. Reagan-National?
If you book a flight to Washington, D.C. Reagan-National from Santiago de los Caballeros, you will be flying from Santiago, which is the city’s only airport. Santiago de los Caballeros (STI) is located 6.8 mi from the center of Santiago de los Caballeros. There are 0 flights from Santiago to Washington, D.C. Reagan-National per day from 0 different airlines.
How long is the flight from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport?
Airlines like Delta and United Airlines fly from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport in about 7h 29m. The time it takes to get you to your destination can typically vary by up to 3h 08m. The distance from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport is about 1397 mi. This flight may include one or multiple stops.
Can I find deals for flights from Santiago de los Caballeros to Reagan-National that include hotel bookings?
Yes. In addition to deals on Santiago de los Caballeros to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Santiago de los Caballeros to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santiago de los Caballeros to Reagan-National.
Can I find deals for business class flights from Santiago de los Caballeros to Reagan-National?
Yes. Cheapflights offers flight deals from Santiago de los Caballeros to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$242+ Cheap flights from Santiago de los Caballeros (STI) to Reagan-National (DCA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from Santiago de los Caballeros to Reagan-NationalExplore the most affordable flight options available from Santiago de los Caballeros to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.

Explore the most affordable flight options available from Santiago de los Caballeros to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.

Best flights from Santiago de los Caballeros to Reagan-NationalDiscover carefully curated flight deals from Santiago de los Caballeros to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.

Discover carefully curated flight deals from Santiago de los Caballeros to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.

Last-minute flights from Santiago de los Caballeros to Reagan-NationalDiscover last-minute flight deals from Santiago de los Caballeros to Reagan-National. Data last updated October 22, 2026 and is based on user searches.

Discover last-minute flight deals from Santiago de los Caballeros to Reagan-National. Data last updated October 22, 2026 and is based on user searches.

One-way flights from Santiago de los Caballeros to Reagan-NationalSearch for one-way flight options from Santiago de los Caballeros to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.

Search for one-way flight options from Santiago de los Caballeros to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.

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

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

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

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 Santiago de los Caballeros to Reagan-National in October.

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Santiago de los Caballeros with our price prediction graph.

Related info for your journey

What airport do you fly from for flights from Santiago de los Caballeros to Washington, D.C. Reagan-National?

How long is the flight from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport?

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

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

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

Traveling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for Santiago de los Caballeros to Reagan-National

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

Complete your trip

Complete your trip to Reagan-National by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Santiago de los Caballeros to Reagan-National by cabin class

Find flights from Santiago de los Caballeros to Reagan-National, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Santiago de los Caballeros and Reagan-National flights

Browse other Santiago de los Caballeros and Reagan-National flight options. Last updated on October 22, 2026.

Other flights from Santiago de los Caballeros

Browse through other flights departing from Santiago de los Caballeros. Flights are based on user searches made on Cheapflights and were last updated on October 22, 2026.

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Check out other popular destinations found by fellow travelers in 2026

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Cheapest flights from Santiago de los Caballeros to Reagan-National
Explore the most affordable flight options available from Santiago de los Caballeros to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.

Best flights from Santiago de los Caballeros to Reagan-National
Discover carefully curated flight deals from Santiago de los Caballeros to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.

Last-minute flights from Santiago de los Caballeros to Reagan-National
Discover last-minute flight deals from Santiago de los Caballeros to Reagan-National. Data last updated October 22, 2026 and is based on user searches.

One-way flights from Santiago de los Caballeros to Reagan-National
Search for one-way flight options from Santiago de los Caballeros to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.