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Cheap flights from Washington, D.C. to Santiago de los Caballeros from $158

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 4/25. 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
5:30 am - 2:02 pm
BWI
-
STI
8h 32m
1 stop
Spirit Airlines Logo
3:07 pm - 10:20 pm
STI
-
BWI
7h 13m
1 stop
$348Spirit Airlines
Sun, Apr 26 - Thu, Apr 30
JetBlue Logo
7:00 pm - 1:54 am
DCA
-
STI
6h 54m
1 stop
JetBlue Logo
8:52 am - 7:59 pm
STI
-
DCA
11h 07m
1 stop
$357JetBlue
Tue, May 26 - Fri, May 29
Spirit Airlines Logo
5:30 am - 2:02 pm
BWI
-
STI
8h 32m
1 stop
Spirit Airlines Logo
3:07 pm - 9:26 pm
STI
-
BWI
6h 19m
1 stop
$358Spirit Airlines
Sat, May 2 - Sat, May 9
JetBlue Logo
8:10 pm - 8:00 am
DCA
-
STI
11h 50m
1 stop
JetBlue Logo
9:10 am - 6:57 pm
STI
-
DCA
9h 47m
1 stop
$359JetBlue
Tue, Jun 16 - Wed, Jun 24
Spirit Airlines Logo
5:30 am - 2:02 pm
BWI
-
STI
8h 32m
1 stop
Spirit Airlines Logo
3:07 pm - 9:26 pm
STI
-
BWI
6h 19m
1 stop
$360Spirit Airlines
Sat, May 2 - Sat, May 9
JetBlue Logo
6:59 pm - 7:20 am
DCA
-
STI
12h 21m
1 stop
JetBlue Logo
7:30 am - 5:44 pm
STI
-
DCA
10h 14m
1 stop
$360JetBlue
Wed, Apr 8 - Wed, Apr 29
JetBlue Logo
7:59 pm - 8:02 am
DCA
-
STI
12h 03m
1 stop
JetBlue Logo
8:31 am - 7:00 pm
STI
-
DCA
10h 29m
1 stop
$363JetBlue
Sat, Apr 25 - Wed, Apr 29
JetBlue Logo
7:59 pm - 8:02 am
DCA
-
STI
12h 03m
1 stop
JetBlue Logo
7:30 am - 2:38 pm
STI
-
DCA
7h 08m
1 stop
$365JetBlue
Sat, Apr 25 - Fri, May 1
Copa Airlines Logo
2:21 am - 2:50 pm
IAD
-
STI
12h 29m
1 stop
Copa Airlines Logo
3:59 pm - 4:22 am
STI
-
IAD
12h 23m
1 stop
$471Copa Airlines
Fri, Apr 10 - Mon, Apr 27
Copa Airlines Logo
2:21 am - 2:50 pm
IAD
-
STI
12h 29m
1 stop
Copa Airlines Logo
3:59 pm - 4:21 am
STI
-
IAD
12h 22m
1 stop
$491Copa Airlines
Fri, May 1 - Sat, May 9

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
Apr 26
BWI5:30 amBaltimore/Washington
8h 32m
1 stop
STI2:02 pmSantiago de los Caballeros
Apr 30
STI3:07 pmSantiago de los Caballeros
7h 13m
1 stop
BWI10:20 pmBaltimore/Washington
$348
Spirit Airlines
Apr 25
BWI5:30 amBaltimore/Washington
8h 32m
1 stop
STI2:02 pmSantiago de los Caballeros
May 1
STI3:07 pmSantiago de los Caballeros
7h 13m
1 stop
BWI10:20 pmBaltimore/Washington
$358
Spirit Airlines
May 2
BWI5:30 amBaltimore/Washington
8h 32m
1 stop
STI2:02 pmSantiago de los Caballeros
May 9
STI3:07 pmSantiago de los Caballeros
6h 19m
1 stop
BWI9:26 pmBaltimore/Washington
$360

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
Apr 21
IAD12:45 pmWashington, D.C. Dulles Intl
6h 48m
1 stop
STI7:33 pmSantiago de los Caballeros
Apr 28
STI8:59 pmSantiago de los Caballeros
15h 06m
1 stop
IAD12:05 pmWashington, D.C. Dulles Intl
$559
Delta
Apr 21
IAD11:04 amWashington, D.C. Dulles Intl
13h 18m
2 stops
STI12:22 amSantiago de los Caballeros
Apr 28
STI8:59 pmSantiago de los Caballeros
17h 05m
2 stops
IAD2:04 pmWashington, D.C. Dulles Intl
$563
Delta
May 6
IAD12:45 pmWashington, D.C. Dulles Intl
6h 48m
1 stop
STI7:33 pmSantiago de los Caballeros
May 11
STI8:59 pmSantiago de los Caballeros
15h 24m
1 stop
IAD12:23 pmWashington, D.C. Dulles Intl
$579

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 March 23, 2026.
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

Cheapest round-trip

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sun 4/26

5:30 am-2:02 pm

1 stop8h 32m

Santiago de los Caballeros

Thu 4/30

3:07 pm-10:20 pm

1 stop7h 13m

$348

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 5/26

7:00 pm-1:54 am

1 stop6h 54m

Santiago de los Caballeros

Fri 5/29

8:52 am-7:59 pm

1 stop11h 07m

$357
Quickest round-trip

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 5/2

5:30 am-2:02 pm

1 stop8h 32m

Santiago de los Caballeros

Sat 5/9

3:07 pm-9:26 pm

1 stop6h 19m

$358

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 6/16

8:10 pm-8:00 am

1 stop11h 50m

Santiago de los Caballeros

Wed 6/24

9:10 am-6:57 pm

1 stop9h 47m

$359

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 5/2

5:30 am-2:02 pm

1 stop8h 32m

Santiago de los Caballeros

Sat 5/9

3:07 pm-9:26 pm

1 stop6h 19m

$360

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Wed 4/8

6:59 pm-7:20 am

1 stop12h 21m

Santiago de los Caballeros

Wed 4/29

7:30 am-5:44 pm

1 stop10h 14m

$360

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 4/25

7:59 pm-8:02 am

1 stop12h 03m

Santiago de los Caballeros

Wed 4/29

8:31 am-7:00 pm

1 stop10h 29m

$363

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Sat 4/25

7:59 pm-8:02 am

1 stop12h 03m

Santiago de los Caballeros

Fri 5/1

7:30 am-2:38 pm

1 stop7h 08m

$365

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 4/10

2:21 am-2:50 pm

1 stop12h 29m

Santiago de los Caballeros

Mon 4/27

3:59 pm-4:22 am

1 stop12h 23m

$471

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 5/1

2:21 am-2:50 pm

1 stop12h 29m

Santiago de los Caballeros

Sat 5/9

3:59 pm-4:21 am

1 stop12h 22m

$491

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 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 February is also cheap. Prices for this month can be found on momondo for an average of $492.

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

You could potentially save up to 12% 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

Fastest flight time

6h 35m

Direct flights

None
The fastest flight from Washington, D.C. to Santiago de los Caballeros takes 6h 35m
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.
Search flight deals

  • 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 6h 35m, 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 $311Free CancellationRating
6.3
8,536 reviews
Search Spirit Airlines flights
JetBluePriceFrom $362Free CancellationRating
7.2
2,904 reviews
Search JetBlue flights
United AirlinesPriceFrom $467Free CancellationRating
7.4
9,469 reviews
Search United Airlines flights
American AirlinesPriceFrom $484Free CancellationRating
7.1
11,491 reviews
Search American Airlines flights
DeltaPriceFrom $498Free CancellationRating
7.9
8,320 reviews
Search Delta 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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