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Cheap flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros from $255

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 12/5. 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 (DCA-STI)

Cheap round-trip flights

JetBlue Logo
6:15 pm - 8:19 amDCA-STI
13h 04m1 stop
JetBlue Logo
8:20 am - 4:42 pmSTI-DCA
9h 22m1 stop
$437JetBlue
Find Deal
Mon, Nov 17 - Tue, Jan 20
JetBlue Logo
5:42 pm - 2:21 amDCA-STI
8h 39m1 stop
JetBlue Logo
10:10 am - 6:16 pmSTI-DCA
8h 06m1 stop
$441JetBlue
Find Deal
Thu, Sep 18 - Thu, Sep 25
JetBlue Logo
4:55 pm - 2:58 amDCA-STI
9h 03m1 stop
JetBlue Logo
8:20 am - 4:42 pmSTI-DCA
9h 22m1 stop
$443JetBlue
Find Deal
Wed, Nov 19 - Tue, Jan 20
Delta Logo
5:00 pm - 1:26 amDCA-STI
7h 26m1 stop
Delta Logo
6:35 am - 6:06 pmSTI-DCA
12h 31m1 stop
$467Delta
Find Deal
Wed, Nov 19 - Wed, Jan 21
American Airlines Logo
6:00 am - 12:27 pmDCA-STI
6h 27m1 stop
American Airlines Logo
1:29 pm - 10:20 pmSTI-DCA
8h 51m2 stops
$469American Airlines
Find Deal
Thu, Sep 18 - Thu, Sep 25
American Airlines Logo
9:50 am - 8:49 pmDCA-STI
9h 59m1 stop
American Airlines Logo
7:00 am - 8:21 pmSTI-DCA
14h 21m1 stop
$477American Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
American Airlines Logo
5:05 am - 12:27 pmDCA-STI
7h 22m1 stop
American Airlines Logo
1:29 pm - 11:04 pmSTI-DCA
9h 35m2 stops
$479American Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
American Airlines Logo
6:00 am - 12:27 pmDCA-STI
6h 27m1 stop
American Airlines Logo
1:29 pm - 10:00 pmSTI-DCA
8h 31m1 stop
$485American Airlines
Find Deal
Sat, Sep 27 - Fri, Oct 3
Delta Logo
11:10 am - 12:34 amDCA-STI
13h 24m1 stop
Delta Logo
8:40 pm - 10:05 amSTI-DCA
13h 25m1 stop
$505Delta
Find Deal
Thu, Sep 25 - Mon, Sep 29
Delta Logo
6:00 am - 8:34 pmDCA-STI
13h 34m1 stop
Delta Logo
2:33 pm - 10:54 pmSTI-DCA
9h 21m1 stop
$513Delta
Find Deal
Fri, Nov 21 - Fri, Jan 23

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
Sep 18
DCA6:00 amWashington, D.C. Reagan-National
6h 27m
1 stop
STI12:27 pmSantiago de los Caballeros
Sep 25
STI1:29 pmSantiago de los Caballeros
8h 51m
2 stops
DCA10:20 pmWashington, D.C. Reagan-National
$469
Find similar
American Airlines
Nov 13
DCA9:50 amWashington, D.C. Reagan-National
9h 59m
1 stop
STI8:49 pmSantiago de los Caballeros
Nov 18
STI7:00 amSantiago de los Caballeros
14h 21m
1 stop
DCA8:21 pmWashington, D.C. Reagan-National
$477
Find similar
American Airlines
Sep 12
DCA5:05 amWashington, D.C. Reagan-National
7h 22m
1 stop
STI12:27 pmSantiago de los Caballeros
Sep 19
STI1:29 pmSantiago de los Caballeros
9h 35m
2 stops
DCA11:04 pmWashington, D.C. Reagan-National
$479
Find similar

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
Nov 17
DCA6:15 pmWashington, D.C. Reagan-National
13h 04m
1 stop
STI8:19 amSantiago de los Caballeros
Jan 20
STI8:20 amSantiago de los Caballeros
9h 22m
1 stop
DCA4:42 pmWashington, D.C. Reagan-National
$437
Find similar
JetBlue
Sep 18
DCA5:42 pmWashington, D.C. Reagan-National
8h 39m
1 stop
STI2:21 amSantiago de los Caballeros
Sep 25
STI10:10 amSantiago de los Caballeros
8h 06m
1 stop
DCA6:16 pmWashington, D.C. Reagan-National
$441
Find similar
JetBlue
Nov 19
DCA4:55 pmWashington, D.C. Reagan-National
9h 03m
1 stop
STI2:58 amSantiago de los Caballeros
Jan 20
STI8:20 amSantiago de los Caballeros
9h 22m
1 stop
DCA4:42 pmWashington, D.C. Reagan-National
$443
Find similar

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 August 14, 2025.
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 11/17

6:15 pm-8:19 am

1 stop13h 04m

Santiago de los Caballeros

Tue 1/20

8:20 am-4:42 pm

1 stop9h 22m

$437

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 9/18

5:42 pm-2:21 am

1 stop8h 39m

Santiago de los Caballeros

Thu 9/25

10:10 am-6:16 pm

1 stop8h 06m

$441

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 11/19

4:55 pm-2:58 am

1 stop9h 03m

Santiago de los Caballeros

Tue 1/20

8:20 am-4:42 pm

1 stop9h 22m

$443

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 11/19

5:00 pm-1:26 am

1 stop7h 26m

Santiago de los Caballeros

Wed 1/21

6:35 am-6:06 pm

1 stop12h 31m

$467

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 9/18

6:00 am-12:27 pm

1 stop6h 27m

Santiago de los Caballeros

Thu 9/25

1:29 pm-10:20 pm

2 stops8h 51m

$469

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 11/13

9:50 am-8:49 pm

1 stop9h 59m

Santiago de los Caballeros

Tue 11/18

7:00 am-8:21 pm

1 stop14h 21m

$477

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 9/12

5:05 am-12:27 pm

1 stop7h 22m

Santiago de los Caballeros

Fri 9/19

1:29 pm-11:04 pm

2 stops9h 35m

$479

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 9/27

6:00 am-12:27 pm

1 stop6h 27m

Santiago de los Caballeros

Fri 10/3

1:29 pm-10:00 pm

1 stop8h 31m

$485

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 9/25

11:10 am-12:34 am

1 stop13h 24m

Santiago de los Caballeros

Mon 9/29

8:40 pm-10:05 am

1 stop13h 25m

$505

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 11/21

6:00 am-8:34 pm

1 stop13h 34m

Santiago de los Caballeros

Fri 1/23

2:33 pm-10:54 pm

1 stop9h 21m

$513

Flights are sorted by cheapest round-trip flights 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 September. Flight prices, which tend to average around $487, 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 September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $520.

What is the cheapest day to depart on your flight to Santiago de los Caballeros?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros is on a Sunday when prices can be found for as low as $475. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros for around $614.

What is the cheapest time of day to depart on your flight to Santiago de los Caballeros?

Our data shows that the cheapest Washington, D.C. Reagan-National Airport to Santiago de los Caballeros flights are usually those with departure times in the morning. Our users have found flights to Santiago de los Caballeros in the morning for as low as $520. At noon is when there is more demand to fly to Santiago de los Caballeros, so prices are often more expensive at around $657 per ticket.

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 $621 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 $431 on momondo.

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

Best Price Found

$255

Fastest flight time

6h 27m

Direct flights

None

Airports in Santiago de los Caballeros

1 airport
The best one-way flight to Santiago de los Caballeros from Washington, D.C. Reagan-National Airport in the past 72 hours is $255. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros found on momondo in the last 72 hours is $437.
The fastest flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros takes 6h 27m
There are no direct flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros. Popular non-direct route for this connection is Washington, D.C. Reagan-National Airport - Santiago de los Caballeros Airport.
There is 1 airport near Santiago de los Caballeros: Santiago de los Caballeros (STI)
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  • 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 27m 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 $427Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
DeltaPriceFrom $483Free CancellationRating
8.0
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $518Free CancellationRating
7.4
8,916 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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