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Cheap flights from Washington, D.C. to Santiago de los Caballeros from $151

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. to Santiago de los Caballeros departing on 11/7. 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. to Santiago de los Caballeros

Cheap round-trip flights

Spirit Airlines Logo
7:00 pm - 10:38 amBWI-STI
15h 38m1 stop
Spirit Airlines Logo
11:43 am - 11:32 pmSTI-BWI
11h 49m1 stop
$327Spirit Airlines
Find Deal
Thu, Oct 16 - Thu, Oct 23
Spirit Airlines Logo
10:48 am - 5:06 pmBWI-STI
5h 18m1 stop
Spirit Airlines Logo
6:18 pm - 11:54 pmSTI-BWI
6h 36m1 stop
$335Spirit Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
JetBlue Logo
8:00 am - 3:13 pmDCA-STI
7h 13m1 stop
JetBlue Logo
3:43 am - 2:50 pmSTI-DCA
11h 07m1 stop
$392JetBlue
Find Deal
Sun, Oct 26 - Fri, Oct 31
JetBlue Logo
7:51 pm - 8:57 amDCA-STI
12h 06m1 stop
JetBlue Logo
5:15 am - 2:34 pmSTI-DCA
10h 19m1 stop
$393JetBlue
Find Deal
Mon, Dec 8 - Sun, Feb 8
Delta Logo
5:03 pm - 12:59 amDCA-STI
6h 56m1 stop
Delta Logo
6:35 am - 6:58 pmSTI-DCA
13h 23m1 stop
$467Delta
Find Deal
Wed, Nov 19 - Fri, Nov 28
Delta Logo
12:11 pm - 7:36 pmIAD-STI
6h 25m1 stop
Delta Logo
6:35 am - 7:08 pmSTI-IAD
13h 33m1 stop
$467Delta
Find Deal
Wed, Nov 12 - Wed, Nov 26
American Airlines Logo
6:45 am - 3:33 pmDCA-STI
7h 48m2 stops
American Airlines Logo
6:20 am - 2:24 pmSTI-DCA
9h 04m2 stops
$480American Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 27
American Airlines Logo
6:24 am - 8:51 pmIAD-STI
13h 27m2 stops
American Airlines Logo
7:00 am - 4:49 pmSTI-IAD
10h 49m2 stops
$480American Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
6:00 am - 2:53 pmIAD-STI
7h 53m1 stop
United Airlines Logo
12:52 pm - 8:57 pmSTI-IAD
9h 05m1 stop
$577United Airlines
Find Deal
Thu, Nov 13 - Fri, Nov 21
United Airlines Logo
6:15 am - 12:57 pmIAD-STI
6h 42m1 stop
United Airlines Logo
2:07 pm - 10:35 pmSTI-IAD
8h 28m1 stop
$592United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6

American Airlines flights from Washington, D.C. to Santiago de los Caballeros

Our best American Airlines deals on Washington, D.C. to Santiago de los Caballeros flight tickets
American Airlines
Nov 13
IAD6:24 amWashington, D.C. Dulles Intl
13h 27m
2 stops
STI8:51 pmSantiago de los Caballeros
Nov 18
STI7:00 amSantiago de los Caballeros
10h 49m
2 stops
IAD4:49 pmWashington, D.C. Dulles Intl
$480
Find similar
American Airlines
Nov 13
IAD8:09 pmWashington, D.C. Dulles Intl
18h 24m
2 stops
STI3:33 pmSantiago de los Caballeros
Nov 18
STI4:35 pmSantiago de los Caballeros
22h 00m
2 stops
IAD1:35 pmWashington, D.C. Dulles Intl
$482
Find similar
American Airlines
Oct 18
IAD8:25 pmWashington, D.C. Dulles Intl
15h 48m
2 stops
STI12:13 pmSantiago de los Caballeros
Oct 21
STI1:14 pmSantiago de los Caballeros
20h 41m
2 stops
IAD9:55 amWashington, D.C. Dulles Intl
$489
Find similar

Delta flights from Washington, D.C. to Santiago de los Caballeros

Our best Delta deals on Washington, D.C. to Santiago de los Caballeros flight tickets
Delta
Nov 19
DCA5:03 pmWashington, D.C. Reagan-National
6h 56m
1 stop
STI12:59 amSantiago de los Caballeros
Nov 28
STI6:35 amSantiago de los Caballeros
13h 23m
1 stop
DCA6:58 pmWashington, D.C. Reagan-National
$467
Find similar
Delta
Nov 13
IAD12:11 pmWashington, D.C. Dulles Intl
11h 48m
1 stop
STI12:59 amSantiago de los Caballeros
Nov 18
STI6:35 amSantiago de los Caballeros
13h 33m
1 stop
IAD7:08 pmWashington, D.C. Dulles Intl
$487
Find similar
Delta
Nov 6
DCA6:05 amWashington, D.C. Reagan-National
13h 01m
1 stop
STI8:06 pmSantiago de los Caballeros
Nov 10
STI9:01 pmSantiago de los Caballeros
14h 01m
1 stop
DCA10:02 amWashington, D.C. Reagan-National
$507
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 10/16

7:00 pm-10:38 am

1 stop15h 38m

Santiago de los Caballeros

Thu 10/23

11:43 am-11:32 pm

1 stop11h 49m

$327

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 12/4

10:48 am-5:06 pm

1 stop5h 18m

Santiago de los Caballeros

Sun 12/7

6:18 pm-11:54 pm

1 stop6h 36m

$335

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sun 10/26

8:00 am-3:13 pm

1 stop7h 13m

Santiago de los Caballeros

Fri 10/31

3:43 am-2:50 pm

1 stop11h 07m

$392

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 12/8

7:51 pm-8:57 am

1 stop12h 06m

Santiago de los Caballeros

Sun 2/8

5:15 am-2:34 pm

1 stop10h 19m

$393

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 11/19

5:03 pm-12:59 am

1 stop6h 56m

Santiago de los Caballeros

Fri 11/28

6:35 am-6:58 pm

1 stop13h 23m

$467

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 11/12

12:11 pm-7:36 pm

1 stop6h 25m

Santiago de los Caballeros

Wed 11/26

6:35 am-7:08 pm

1 stop13h 33m

$467

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 11/18

6:45 am-3:33 pm

2 stops7h 48m

Santiago de los Caballeros

Thu 11/27

6:20 am-2:24 pm

2 stops9h 04m

$480

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 11/13

6:24 am-8:51 pm

2 stops13h 27m

Santiago de los Caballeros

Tue 11/18

7:00 am-4:49 pm

2 stops10h 49m

$480

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 11/13

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Fri 11/21

12:52 pm-8:57 pm

1 stop9h 05m

$577

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 10/3

6:15 am-12:57 pm

1 stop6h 42m

Santiago de los Caballeros

Mon 10/6

2:07 pm-10:35 pm

1 stop8h 28m

$592

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. 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. is in January. Flight prices, which tend to average around $493, 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 July is also cheap. Prices for this month can be found on momondo for an average of $494.

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

The cheapest day to depart from Washington, D.C. 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. 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. 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 have Washington, D.C. to Santiago de los Caballeros flight prices changed over time?

When to book flights from Washington, D.C. to Santiago de los Caballeros

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Santiago de los Caballeros (WAS to STI) flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. to Santiago de los Caballeros. There are no popular flight routes from Washington, D.C. to Santiago de los Caballeros.
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  • How far is Washington, D.C. to Santiago de los Caballeros by plane?

    A flight from Washington, D.C. to Santiago de los Caballeros will travel around 1395.5 mi. Flights usually cover this in 5h 18m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. to Santiago de los Caballeros Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Santiago de los Caballeros Airport.

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

    The required travel and health documents for your Santiago de los Caballeros Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Santiago de los Caballeros Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Washington, D.C. to Santiago de los Caballeros

Compare and see reviews for airlines that fly from Washington, D.C. to Santiago de los Caballeros with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $322Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
JetBluePriceFrom $427Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
DeltaPriceFrom $483Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
8,926 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Santiago de los Caballeros. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Santiago de los Caballeros from Washington, D.C. with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Santiago de los Caballeros.

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 can track prices for Washington, D.C. to Santiago de los Caballeros flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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