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Cheap flights from Washington, D.C. to Santiago de los Caballeros from $125

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 12/8. 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

Enter your travel dates to find the best prices.
Spirit Airlines Logo
7:06 pm - 2:42 amBWI-STI
6h 36m1 stop
Spirit Airlines Logo
3:43 am - 9:35 amSTI-BWI
6h 52m1 stop
$258Spirit Airlines
Find Deal
Sat, Dec 6 - Sun, Dec 7
Spirit Airlines Logo
6:20 am - 3:33 pmBWI-STI
8h 13m1 stop
Spirit Airlines Logo
4:40 pm - 11:31 pmSTI-BWI
7h 51m1 stop
$285Spirit Airlines
Find Deal
Tue, Jan 20 - Tue, Jan 27
JetBlue Logo
6:00 am - 2:13 amDCA-STI
19h 13m1 stop
JetBlue Logo
5:10 am - 5:35 pmSTI-DCA
13h 25m1 stop
$421JetBlue
Find Deal
Mon, Dec 8 - Sun, Feb 8
JetBlue Logo
6:59 pm - 3:20 amDCA-STI
7h 21m1 stop
JetBlue Logo
6:01 am - 2:44 pmSTI-DCA
9h 43m1 stop
$424JetBlue
Find Deal
Mon, Nov 24 - Wed, Dec 3
Delta Logo
12:30 pm - 11:27 pmIAD-STI
10h 57m1 stop
Delta Logo
6:00 am - 7:12 pmSTI-IAD
13h 12m1 stop
$468Delta
Find Deal
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
10:48 am - 8:03 pmIAD-STI
9h 15m2 stops
American Airlines Logo
7:00 am - 11:54 pmSTI-IAD
16h 54m2 stops
$472American Airlines
Find Deal
Tue, Mar 10 - Tue, Mar 17
Delta Logo
12:30 pm - 11:27 pmIAD-STI
10h 57m1 stop
Delta Logo
7:41 pm - 11:53 amSTI-IAD
16h 12m1 stop
$488Delta
Find Deal
Wed, Mar 18 - Mon, Mar 23
American Airlines Logo
10:13 am - 8:03 pmDCA-STI
9h 50m2 stops
American Airlines Logo
7:00 am - 11:07 pmSTI-DCA
16h 07m1 stop
$492American Airlines
Find Deal
Wed, Mar 11 - Mon, Mar 16
United Airlines Logo
6:00 am - 2:53 pmIAD-STI
7h 53m1 stop
United Airlines Logo
12:52 pm - 9:03 pmSTI-IAD
9h 11m1 stop
$511United Airlines
Find Deal
Fri, Feb 27 - Mon, Mar 2
United Airlines Logo
6:00 am - 2:53 pmIAD-STI
7h 53m1 stop
United Airlines Logo
4:00 pm - 10:58 pmSTI-IAD
7h 58m1 stop
$568United Airlines
Find Deal
Fri, Nov 21 - Tue, Nov 25

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
Mar 10
IAD12:30 pmWashington, D.C. Dulles Intl
10h 57m
1 stop
STI11:27 pmSantiago de los Caballeros
Mar 17
STI6:00 amSantiago de los Caballeros
13h 12m
1 stop
IAD7:12 pmWashington, D.C. Dulles Intl
$468
Find similar
Delta
Mar 18
IAD12:30 pmWashington, D.C. Dulles Intl
10h 57m
1 stop
STI11:27 pmSantiago de los Caballeros
Mar 23
STI7:41 pmSantiago de los Caballeros
16h 12m
1 stop
IAD11:53 amWashington, D.C. Dulles Intl
$488
Find similar
Delta
Feb 23
IAD12:23 pmWashington, D.C. Dulles Intl
11h 30m
1 stop
STI12:53 amSantiago de los Caballeros
Mar 16
STI7:41 pmSantiago de los Caballeros
16h 12m
1 stop
IAD11:53 amWashington, D.C. Dulles Intl
$513
Find similar

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

Our best Spirit Airlines deals on Washington, D.C. to Santiago de los Caballeros flight tickets
Spirit Airlines
Dec 6
BWI7:06 pmBaltimore/Washington
6h 36m
1 stop
STI2:42 amSantiago de los Caballeros
Dec 7
STI3:43 amSantiago de los Caballeros
6h 52m
1 stop
BWI9:35 amBaltimore/Washington
$258
Find similar
Spirit Airlines
Jan 20
BWI6:20 amBaltimore/Washington
8h 13m
1 stop
STI3:33 pmSantiago de los Caballeros
Jan 27
STI4:40 pmSantiago de los Caballeros
7h 51m
1 stop
BWI11:31 pmBaltimore/Washington
$285
Find similar
Spirit Airlines
Dec 6
BWI7:06 pmBaltimore/Washington
6h 36m
1 stop
STI2:42 amSantiago de los Caballeros
Dec 13
STI3:43 amSantiago de los Caballeros
6h 52m
1 stop
BWI9:35 amBaltimore/Washington
$291
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 November 10, 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

Sat 12/6

7:06 pm-2:42 am

1 stop6h 36m

Santiago de los Caballeros

Sun 12/7

3:43 am-9:35 am

1 stop6h 52m

$258

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 1/20

6:20 am-3:33 pm

1 stop8h 13m

Santiago de los Caballeros

Tue 1/27

4:40 pm-11:31 pm

1 stop7h 51m

$285

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 12/8

6:00 am-2:13 am

1 stop19h 13m

Santiago de los Caballeros

Sun 2/8

5:10 am-5:35 pm

1 stop13h 25m

$421

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 11/24

6:59 pm-3:20 am

1 stop7h 21m

Santiago de los Caballeros

Wed 12/3

6:01 am-2:44 pm

1 stop9h 43m

$424

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Tue 3/10

12:30 pm-11:27 pm

1 stop10h 57m

Santiago de los Caballeros

Tue 3/17

6:00 am-7:12 pm

1 stop13h 12m

$468

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Tue 3/10

10:48 am-8:03 pm

2 stops9h 15m

Santiago de los Caballeros

Tue 3/17

7:00 am-11:54 pm

2 stops16h 54m

$472

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 3/18

12:30 pm-11:27 pm

1 stop10h 57m

Santiago de los Caballeros

Mon 3/23

7:41 pm-11:53 am

1 stop16h 12m

$488

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 3/11

10:13 am-8:03 pm

2 stops9h 50m

Santiago de los Caballeros

Mon 3/16

7:00 am-11:07 pm

1 stop16h 07m

$492

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 2/27

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Mon 3/2

12:52 pm-9:03 pm

1 stop9h 11m

$511

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 11/21

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Tue 11/25

4:00 pm-10:58 pm

1 stop7h 58m

$568

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. 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. 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. is in October. Flight prices, which tend to average around $475, 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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $493.

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.

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

You could potentially save up to 36% on your flight if you consider stops on a Washington, D.C. to Santiago de los Caballeros flight.

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 42m, 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
8,136 reviews
Search Spirit Airlines flights
JetBluePriceFrom $426Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
DeltaPriceFrom $483Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
9,012 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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