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Cheap flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros from $146

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros departing on 3/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
6:55 pm - 7:16 am
DCA
-
STI
12h 21m
1 stop
JetBlue Logo
8:00 am - 6:04 pm
STI
-
DCA
10h 04m
1 stop
$325JetBlue
Mon, Mar 23 - Thu, Apr 9
JetBlue Logo
5:40 pm - 8:03 am
DCA
-
STI
14h 23m
1 stop
JetBlue Logo
8:31 am - 7:00 pm
STI
-
DCA
10h 29m
1 stop
$335JetBlue
Mon, Apr 6 - Tue, Apr 21
JetBlue Logo
2:45 pm - 8:03 am
DCA
-
STI
17h 18m
1 stop
JetBlue Logo
7:30 am - 5:44 pm
STI
-
DCA
10h 14m
1 stop
$343JetBlue
Tue, Apr 21 - Tue, May 5
JetBlue Logo
6:55 pm - 9:21 am
DCA
-
STI
13h 26m
1 stop
JetBlue Logo
10:31 am - 7:53 pm
STI
-
DCA
10h 22m
1 stop
$346JetBlue
Mon, Feb 23 - Thu, Feb 26
JetBlue Logo
6:55 pm - 7:16 am
DCA
-
STI
12h 21m
1 stop
JetBlue Logo
9:13 am - 10:59 pm
STI
-
DCA
13h 46m
1 stop
$349JetBlue
Tue, Mar 17 - Tue, Mar 24
JetBlue Logo
4:59 pm - 12:27 pm
DCA
-
STI
18h 28m
2 stops
JetBlue Logo
10:31 am - 7:53 pm
STI
-
DCA
10h 22m
1 stop
$350JetBlue
Mon, Feb 23 - Wed, Feb 25
JetBlue Logo
8:00 am - 12:27 pm
DCA
-
STI
27h 27m
1 stop
JetBlue Logo
9:29 am - 6:00 pm
STI
-
DCA
9h 31m
1 stop
$355JetBlue
Mon, Feb 23 - Wed, Feb 25
JetBlue Logo
6:55 pm - 7:16 am
DCA
-
STI
12h 21m
1 stop
JetBlue Logo
9:15 am - 7:58 pm
STI
-
DCA
10h 43m
1 stop
$356JetBlue
Mon, Mar 23 - Wed, Apr 8
JetBlue Logo
6:55 pm - 9:21 am
DCA
-
STI
13h 26m
1 stop
JetBlue Logo
10:31 am - 7:53 pm
STI
-
DCA
10h 22m
1 stop
$358JetBlue
Mon, Feb 23 - Wed, Mar 4
JetBlue Logo
6:55 pm - 9:21 am
DCA
-
STI
13h 26m
1 stop
JetBlue Logo
10:31 am - 7:53 pm
STI
-
DCA
10h 22m
1 stop
$360JetBlue
Mon, Feb 23 - Thu, Feb 26

American Airlines flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flight tickets
American Airlines
Feb 24
DCA6:00 amWashington, D.C. Reagan-National
6h 31m
1 stop
STI1:31 pmSantiago de los Caballeros
Mar 3
STI8:00 amSantiago de los Caballeros
12h 44m
2 stops
DCA7:44 pmWashington, D.C. Reagan-National
$638
American Airlines
Feb 23
DCA5:59 amWashington, D.C. Reagan-National
6h 32m
1 stop
STI1:31 pmSantiago de los Caballeros
Mar 4
STI8:00 amSantiago de los Caballeros
12h 44m
2 stops
DCA7:44 pmWashington, D.C. Reagan-National
$658
American Airlines
Feb 23
DCA8:42 amWashington, D.C. Reagan-National
11h 48m
2 stops
STI9:30 pmSantiago de los Caballeros
Mar 4
STI8:00 amSantiago de los Caballeros
6h 59m
1 stop
DCA1:59 pmWashington, D.C. Reagan-National
$668

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

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flight tickets
JetBlue
Mar 23
DCA6:55 pmWashington, D.C. Reagan-National
12h 21m
1 stop
STI7:16 amSantiago de los Caballeros
Apr 9
STI8:00 amSantiago de los Caballeros
10h 04m
1 stop
DCA6:04 pmWashington, D.C. Reagan-National
$325
JetBlue
Apr 6
DCA5:40 pmWashington, D.C. Reagan-National
14h 23m
1 stop
STI8:03 amSantiago de los Caballeros
Apr 21
STI8:31 amSantiago de los Caballeros
10h 29m
1 stop
DCA7:00 pmWashington, D.C. Reagan-National
$335
JetBlue
Apr 21
DCA2:45 pmWashington, D.C. Reagan-National
17h 18m
1 stop
STI8:03 amSantiago de los Caballeros
May 5
STI7:30 amSantiago de los Caballeros
10h 14m
1 stop
DCA5:44 pmWashington, D.C. Reagan-National
$343

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
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

Mon 3/23

6:55 pm-7:16 am

1 stop12h 21m

Santiago de los Caballeros

Thu 4/9

8:00 am-6:04 pm

1 stop10h 04m

$325

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 4/6

5:40 pm-8:03 am

1 stop14h 23m

Santiago de los Caballeros

Tue 4/21

8:31 am-7:00 pm

1 stop10h 29m

$335

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/21

2:45 pm-8:03 am

1 stop17h 18m

Santiago de los Caballeros

Tue 5/5

7:30 am-5:44 pm

1 stop10h 14m

$343

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/23

6:55 pm-9:21 am

1 stop13h 26m

Santiago de los Caballeros

Thu 2/26

10:31 am-7:53 pm

1 stop10h 22m

$346

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 3/17

6:55 pm-7:16 am

1 stop12h 21m

Santiago de los Caballeros

Tue 3/24

9:13 am-10:59 pm

1 stop13h 46m

$349

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/23

4:59 pm-12:27 pm

2 stops18h 28m

Santiago de los Caballeros

Wed 2/25

10:31 am-7:53 pm

1 stop10h 22m

$350

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/23

8:00 am-12:27 pm

1 stop27h 27m

Santiago de los Caballeros

Wed 2/25

9:29 am-6:00 pm

1 stop9h 31m

$355

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 3/23

6:55 pm-7:16 am

1 stop12h 21m

Santiago de los Caballeros

Wed 4/8

9:15 am-7:58 pm

1 stop10h 43m

$356

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/23

6:55 pm-9:21 am

1 stop13h 26m

Santiago de los Caballeros

Wed 3/4

10:31 am-7:53 pm

1 stop10h 22m

$358

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/23

6:55 pm-9:21 am

1 stop13h 26m

Santiago de los Caballeros

Thu 2/26

10:31 am-7:53 pm

1 stop10h 22m

$360

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Santiago de los Caballeros from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Santiago de los Caballeros?

The cheapest month to fly to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport is in January. Flight prices, which tend to average around $467, are often lower during this time because this is during the off-season. If you aren’t able to travel to Santiago de los Caballeros during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $526.

How far in advance should I book a flight to Santiago de los Caballeros?

You are more likely to see cheaper flights to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Santiago de los Caballeros for around $599 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport for as low as $463 on momondo.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flights?

You could potentially save up to 5% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flight.

How have Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flight prices changed over time?

When to book flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Santiago de los Caballeros (DCA to STI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Fastest flight time

7h 30m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros takes 7h 30m
There are no direct flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros.
Search flight deals

  • How far is Washington, D.C. Reagan-National to Santiago de los Caballeros by plane?

    Santiago de los Caballeros is 1392.0 mi away from Washington, D.C. Reagan-National. Typically, this will take 7h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The travel and health documents required for your trip to Santiago de los Caballeros Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santiago de los Caballeros Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

Best airlines flying from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $417Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
11,271 reviews
Search American Airlines flights
DeltaPriceFrom $499Free CancellationRating
7.9
8,181 reviews
Search Delta flights
United AirlinesPriceFrom $528Free CancellationRating
7.4
9,279 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Santiago de los Caballeros?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Santiago de los Caballeros from Washington, D.C..

Can I find flights from Washington, D.C. to Santiago de los Caballeros with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Santiago de los Caballeros flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Santiago de los Caballeros?

momondo provides multiple filters to help you find the best flight to Santiago de los Caballeros from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Santiago de los Caballeros right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Santiago de los Caballeros from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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