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Cheap flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros from $176

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 6/6. 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
6:00 am - 2:45 pm
DCA
-
STI
8h 45m
1 stop
JetBlue Logo
3:55 pm - 11:40 pm
STI
-
DCA
7h 45m
1 stop
$365JetBlue
Sun, Sep 13 - Fri, Sep 18
JetBlue Logo
7:59 am - 2:45 pm
DCA
-
STI
6h 46m
1 stop
JetBlue Logo
3:55 pm - 11:40 pm
STI
-
DCA
7h 45m
1 stop
$366JetBlue
Wed, Sep 16 - Tue, Sep 22
JetBlue Logo
7:59 am - 2:45 pm
DCA
-
STI
6h 46m
1 stop
JetBlue Logo
3:55 pm - 11:40 pm
STI
-
DCA
7h 45m
1 stop
$381JetBlue
Wed, Sep 23 - Mon, Sep 28
JetBlue Logo
7:59 am - 2:45 pm
DCA
-
STI
6h 46m
1 stop
JetBlue Logo
3:55 pm - 11:40 pm
STI
-
DCA
7h 45m
1 stop
$386JetBlue
Tue, Oct 20 - Thu, Oct 22
JetBlue Logo
6:00 am - 2:36 pm
DCA
-
STI
8h 36m
1 stop
JetBlue Logo
3:51 pm - 10:59 pm
STI
-
DCA
7h 08m
1 stop
$423JetBlue
Thu, Aug 13 - Sat, Aug 15
JetBlue Logo
8:25 am - 2:36 pm
DCA
-
STI
6h 11m
1 stop
JetBlue Logo
5:01 am - 2:40 pm
STI
-
DCA
9h 39m
1 stop
$425JetBlue
Mon, Aug 10 - Thu, Aug 13
JetBlue Logo
7:00 pm - 1:54 am
DCA
-
STI
6h 54m
1 stop
JetBlue Logo
6:47 pm - 7:57 am
STI
-
DCA
13h 10m
1 stop
$430JetBlue
Mon, Jun 8 - Tue, Jun 16
JetBlue Logo
6:00 am - 3:01 pm
DCA
-
STI
9h 01m
1 stop
JetBlue Logo
3:51 pm - 10:59 pm
STI
-
DCA
7h 08m
1 stop
$444JetBlue
Mon, Jul 20 - Fri, Aug 14
JetBlue Logo
7:00 pm - 1:54 am
DCA
-
STI
6h 54m
1 stop
JetBlue Logo
2:55 pm - 10:59 pm
STI
-
DCA
8h 04m
1 stop
$456JetBlue
Mon, Jun 8 - Mon, Jun 15
JetBlue Logo
7:00 pm - 1:54 am
DCA
-
STI
6h 54m
1 stop
JetBlue Logo
12:28 pm - 10:59 pm
STI
-
DCA
10h 31m
1 stop
$465JetBlue
Mon, Jun 8 - Mon, Jun 15

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
Jun 3
DCA7:00 pmWashington, D.C. Reagan-National
6h 54m
1 stop
STI1:54 amSantiago de los Caballeros
Jun 9
STI8:52 amSantiago de los Caballeros
7h 27m
1 stop
DCA4:19 pmWashington, D.C. Reagan-National
$354
JetBlue
Sep 13
DCA6:00 amWashington, D.C. Reagan-National
8h 45m
1 stop
STI2:45 pmSantiago de los Caballeros
Sep 18
STI3:55 pmSantiago de los Caballeros
7h 45m
1 stop
DCA11:40 pmWashington, D.C. Reagan-National
$365
JetBlue
Sep 16
DCA7:59 amWashington, D.C. Reagan-National
6h 46m
1 stop
STI2:45 pmSantiago de los Caballeros
Sep 22
STI3:55 pmSantiago de los Caballeros
7h 45m
1 stop
DCA11:40 pmWashington, D.C. Reagan-National
$366

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flight tickets
Delta
Jul 21
DCA11:00 amWashington, D.C. Reagan-National
14h 55m
1 stop
STI1:55 amSantiago de los Caballeros
Dec 18
STI9:00 pmSantiago de los Caballeros
17h 09m
1 stop
DCA1:09 pmWashington, D.C. Reagan-National
$540
Delta
Jul 21
DCA1:30 pmWashington, D.C. Reagan-National
12h 25m
1 stop
STI1:55 amSantiago de los Caballeros
Dec 13
STI6:40 amSantiago de los Caballeros
15h 25m
1 stop
DCA9:05 pmWashington, D.C. Reagan-National
$560
Delta
Jun 6
DCA6:09 amWashington, D.C. Reagan-National
6h 14m
1 stop
STI12:23 pmSantiago de los Caballeros
Jun 9
STI8:59 pmSantiago de los Caballeros
13h 03m
1 stop
DCA10:02 amWashington, D.C. Reagan-National
$740

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 May 25, 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

Cheapest round-trip

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 9/13

6:00 am-2:45 pm

1 stop8h 45m

Santiago de los Caballeros

Fri 9/18

3:55 pm-11:40 pm

1 stop7h 45m

$365
Quickest round-trip

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 9/16

7:59 am-2:45 pm

1 stop6h 46m

Santiago de los Caballeros

Tue 9/22

3:55 pm-11:40 pm

1 stop7h 45m

$366

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 9/23

7:59 am-2:45 pm

1 stop6h 46m

Santiago de los Caballeros

Mon 9/28

3:55 pm-11:40 pm

1 stop7h 45m

$381

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 10/20

7:59 am-2:45 pm

1 stop6h 46m

Santiago de los Caballeros

Thu 10/22

3:55 pm-11:40 pm

1 stop7h 45m

$386

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 8/13

6:00 am-2:36 pm

1 stop8h 36m

Santiago de los Caballeros

Sat 8/15

3:51 pm-10:59 pm

1 stop7h 08m

$423

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 8/10

8:25 am-2:36 pm

1 stop6h 11m

Santiago de los Caballeros

Thu 8/13

5:01 am-2:40 pm

1 stop9h 39m

$425

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 6/8

7:00 pm-1:54 am

1 stop6h 54m

Santiago de los Caballeros

Tue 6/16

6:47 pm-7:57 am

1 stop13h 10m

$430

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 7/20

6:00 am-3:01 pm

1 stop9h 01m

Santiago de los Caballeros

Fri 8/14

3:51 pm-10:59 pm

1 stop7h 08m

$444

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 6/8

7:00 pm-1:54 am

1 stop6h 54m

Santiago de los Caballeros

Mon 6/15

2:55 pm-10:59 pm

1 stop8h 04m

$456

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 6/8

7:00 pm-1:54 am

1 stop6h 54m

Santiago de los Caballeros

Mon 6/15

12:28 pm-10:59 pm

1 stop10h 31m

$465

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 typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Santiago de los Caballeros?

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 April is also cheap. Prices for this month can be found on momondo for an average of $474.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport 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 $572 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 $406 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 20% 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

6h 34m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros takes 6h 34m
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

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros

  • 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 6h 34m 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 $362Free CancellationRating
7.1
2,979 reviews
Search JetBlue flights
American AirlinesPriceFrom $484Free CancellationRating
7.1
11,630 reviews
Search American Airlines flights
United AirlinesPriceFrom $522Free CancellationRating
7.4
9,747 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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