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Reagan-National

$321+ Cheap flights from Santiago de los Caballeros (STI) to Reagan-National (DCA)

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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STI — DCA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Santiago de los Caballeros to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Santiago de los Caballeros (STI) to Reagan-National (DCA). 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 July 29, 2025.

Round-trip from

$475
(JetBlue)

One-way from

$321
(JetBlue)

Popular in

June

Cheapest in

October

Average price

$631
From Santiago de los Caballeros to Washington, D.C. Reagan-National
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One-way flight from Santiago de los Caballeros to Washington, D.C. Reagan-National
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Highest demand for flights based on searches. 8% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 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 Santiago de los Caballeros to Reagan-National

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 July 29, 2025.

This JetBlue deal was found by Cheapflights users on 7/28. 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.
Tue 9/163:30 pmSTI - DCA
1 stop7h 26mJetBlue
Tue 10/148:00 pmDCA - STI
1 stop12h 57mJetBlue
Deal found 7/28$475
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 11/276:45 amSTI - DCA
1 stop12h 20mDelta
Wed 12/317:15 amDCA - STI
1 stop15h 44mDelta
Deal found 7/28$494
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/161:29 pmSTI - DCA
1 stop10h 30mAmerican Airlines
Tue 10/1410:45 pmDCA - STI
2 stops13h 28mAmerican Airlines
Deal found 7/28$518

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros to Reagan-National 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 July 29, 2025.
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

Santiago de los Caballeros

Fly to

Reagan-National

Route

Depart

Return

Price

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Tue 9/16

3:30 pm-10:56 pm

1 stop7h 26m

Washington, D.C. Reagan-National

Tue 10/14

8:00 pm-8:57 am

1 stop12h 57m

$475

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Tue 9/16

1:29 pm-11:59 pm

1 stop10h 30m

Washington, D.C. Reagan-National

Tue 10/14

10:45 pm-12:13 pm

2 stops13h 28m

$518

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Tue 8/19

7:40 am-8:59 pm

1 stop13h 19m

$321

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Thu 8/14

7:00 am-7:59 pm

2 stops12h 59m

$368

Santiago de los CaballerosWashington, D.C.

STI - DCA

STIDCA

Santiago de los Caballeros

Sat 8/16

10:20 am-7:35 pm

3 stops33h 15m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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

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

Currently, February is the cheapest month in which you can book a flight from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport (average of $278). Flying from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 STI to DCA?

Find hourly flight availability from Santiago de los Caballeros to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 2% versus a flight in the afternoon.

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with JetBlue and American Airlines from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.3
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Boarding

7.4

Food

6.7

Crew

8.0

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
JetBlue
7.3
Good
2,913 reviews
JetBlue
7.3
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Boarding

7.4

Food

6.7

Crew

8.0

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
American Airlines
7.2
Good
10,000 reviews
JetBlue
7.3
Good
2,913 reviews

Comfort

7.6

Entertainment

7.3

Boarding

7.4

Food

6.7

Crew

8.0

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

Related info for your journey

Find useful and relevant information for your journey from Santiago de los Caballeros to Reagan-National. 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 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 2 different airlines.

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

    Currently priced at $475, JetBlue will fly you from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $518. JetBlue is currently priced 10% below the average price you’ll pay for this route.

  • 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.

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

    Currently, February is the cheapest month in which you can book a flight from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport (average of $278). Flying from Santiago de los Caballeros to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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

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

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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Top 2 airlines flying from Santiago de los Caballeros to Reagan-National

Discover the top 2 airlines that operate flights from Santiago de los Caballeros to Reagan-National. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$403Average$485FlexibilityNo cancel feeOn-time62%
DeltaCheapest$493Average$589FlexibilityNo cancel feeOn-timeN/A

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