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Cheap flights from Washington, D.C. to Santiago de los Caballeros from $119

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 1/17. 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
6:20 am - 3:35 pm
BWI
-
STI
8h 15m1 stop
Spirit Airlines Logo
4:40 pm - 11:31 pm
STI
-
BWI
7h 51m1 stop
$293Spirit Airlines
Sat, Feb 21 - Wed, Feb 25
Spirit Airlines Logo
6:20 am - 3:35 pm
BWI
-
STI
8h 15m1 stop
Spirit Airlines Logo
4:40 pm - 11:31 pm
STI
-
BWI
7h 51m1 stop
$297Spirit Airlines
Sat, Feb 21 - Sun, Feb 22
Spirit Airlines Logo
6:20 am - 3:33 pm
BWI
-
STI
8h 13m1 stop
Spirit Airlines Logo
4:40 pm - 8:31 am
STI
-
BWI
16h 51m1 stop
$298Spirit Airlines
Fri, Jan 23 - Fri, Jan 30
JetBlue Logo
5:20 pm - 11:02 am
DCA
-
STI
16h 42m2 stops
JetBlue Logo
9:33 am - 2:59 pm
STI
-
DCA
6h 26m1 stop
$351JetBlue
Fri, Jan 23 - Fri, Jan 30
JetBlue Logo
6:15 am - 8:17 pm
DCA
-
STI
13h 02m1 stop
JetBlue Logo
10:11 am - 7:53 pm
STI
-
DCA
10h 42m1 stop
$370JetBlue
Mon, Feb 9 - Thu, Feb 12
American Airlines Logo
2:06 pm - 1:31 pm
IAD
-
STI
22h 25m2 stops
American Airlines Logo
2:33 pm - 11:34 pm
STI
-
IAD
10h 01m2 stops
$472American Airlines
Thu, Feb 19 - Tue, Feb 24
Delta Logo
12:23 pm - 12:50 am
IAD
-
STI
11h 27m1 stop
Delta Logo
6:38 am - 7:09 pm
STI
-
IAD
13h 31m1 stop
$488Delta
Wed, Jan 14 - Sat, Jan 24
United Airlines Logo
6:00 am - 2:53 pm
IAD
-
STI
7h 53m1 stop
United Airlines Logo
4:00 pm - 11:18 pm
STI
-
IAD
8h 18m1 stop
$491United Airlines
Wed, Jan 21 - Mon, Jan 26
American Airlines Logo
7:01 am - 9:46 pm
IAD
-
STI
13h 45m2 stops
American Airlines Logo
6:00 am - 11:12 pm
STI
-
IAD
18h 12m2 stops
$492American Airlines
Wed, Jan 21 - Mon, Jan 26
Delta Logo
12:23 pm - 12:50 am
IAD
-
STI
11h 27m1 stop
Delta Logo
9:59 pm - 11:43 am
STI
-
IAD
14h 44m1 stop
$508Delta
Sat, Jan 24 - Sat, Jan 31

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

Our best United Airlines deals on Washington, D.C. to Santiago de los Caballeros flight tickets
United Airlines
Jan 21
IAD6:00 amWashington, D.C. Dulles Intl
7h 53m
1 stop
STI2:53 pmSantiago de los Caballeros
Jan 26
STI4:00 pmSantiago de los Caballeros
8h 18m
1 stop
IAD11:18 pmWashington, D.C. Dulles Intl
$491
Find similar
United Airlines
Mar 5
IAD6:00 amWashington, D.C. Dulles Intl
7h 53m
1 stop
STI2:53 pmSantiago de los Caballeros
Mar 9
STI11:52 amSantiago de los Caballeros
9h 13m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
$514
Find similar
United Airlines
Feb 20
IAD6:00 amWashington, D.C. Dulles Intl
7h 53m
1 stop
STI2:53 pmSantiago de los Caballeros
Mar 6
STI4:00 pmSantiago de los Caballeros
8h 19m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
$535
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
May 6
IAD12:30 pmWashington, D.C. Dulles Intl
11h 44m
1 stop
STI12:14 amSantiago de los Caballeros
May 11
STI7:15 pmSantiago de los Caballeros
16h 36m
1 stop
IAD11:51 amWashington, D.C. Dulles Intl
$488
Find similar
Delta
Jan 24
IAD12:23 pmWashington, D.C. Dulles Intl
11h 27m
1 stop
STI12:50 amSantiago de los Caballeros
Jan 31
STI9:59 pmSantiago de los Caballeros
14h 44m
1 stop
IAD11:43 amWashington, D.C. Dulles Intl
$508
Find similar
Delta
Feb 9
IAD12:23 pmWashington, D.C. Dulles Intl
11h 27m
1 stop
STI12:50 amSantiago de los Caballeros
Feb 15
STI6:39 amSantiago de los Caballeros
13h 30m
1 stop
IAD7:09 pmWashington, D.C. Dulles Intl
$513
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 December 11, 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 2/21

6:20 am-3:35 pm

1 stop8h 15m

Santiago de los Caballeros

Wed 2/25

4:40 pm-11:31 pm

1 stop7h 51m

$293

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Sat 2/21

6:20 am-3:35 pm

1 stop8h 15m

Santiago de los Caballeros

Sun 2/22

4:40 pm-11:31 pm

1 stop7h 51m

$297

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Fri 1/23

6:20 am-3:33 pm

1 stop8h 13m

Santiago de los Caballeros

Fri 1/30

4:40 pm-8:31 am

1 stop16h 51m

$298

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Fri 1/23

5:20 pm-11:02 am

2 stops16h 42m

Santiago de los Caballeros

Fri 1/30

9:33 am-2:59 pm

1 stop6h 26m

$351

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 2/9

6:15 am-8:17 pm

1 stop13h 02m

Santiago de los Caballeros

Thu 2/12

10:11 am-7:53 pm

1 stop10h 42m

$370

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 2/19

2:06 pm-1:31 pm

2 stops22h 25m

Santiago de los Caballeros

Tue 2/24

2:33 pm-11:34 pm

2 stops10h 01m

$472

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 1/14

12:23 pm-12:50 am

1 stop11h 27m

Santiago de los Caballeros

Sat 1/24

6:38 am-7:09 pm

1 stop13h 31m

$488

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 1/21

6:00 am-2:53 pm

1 stop7h 53m

Santiago de los Caballeros

Mon 1/26

4:00 pm-11:18 pm

1 stop8h 18m

$491

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 1/21

7:01 am-9:46 pm

2 stops13h 45m

Santiago de los Caballeros

Mon 1/26

6:00 am-11:12 pm

2 stops18h 12m

$492

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Sat 1/24

12:23 pm-12:50 am

1 stop11h 27m

Santiago de los Caballeros

Sat 1/31

9:59 pm-11:43 am

1 stop14h 44m

$508

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 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 5% 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 57m

Direct flights

None
The fastest flight from Washington, D.C. to Santiago de los Caballeros takes 6h 57m
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 57m, 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
8,179 reviews
Search Spirit Airlines flights
JetBluePriceFrom $417Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
American AirlinesPriceFrom $476Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
DeltaPriceFrom $483Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
9,095 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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