Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to Santiago de los Caballeros from $124

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 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 15m
1 stop
Spirit Airlines Logo
3:41 pm - 11:31 pm
STI
-
BWI
7h 50m
1 stop
$256Spirit Airlines
Tue, Mar 3 - Tue, Mar 10
Spirit Airlines Logo
4:05 pm - 1:49 am
BWI
-
STI
9h 44m
1 stop
Spirit Airlines Logo
3:40 pm - 11:59 pm
STI
-
BWI
8h 19m
1 stop
$267Spirit Airlines
Thu, Apr 9 - Wed, Apr 15
Spirit Airlines Logo
6:20 am - 3:35 pm
BWI
-
STI
8h 15m
1 stop
Spirit Airlines Logo
2:46 am - 9:14 am
STI
-
BWI
6h 28m
1 stop
$282Spirit Airlines
Tue, Mar 3 - Mon, Mar 23
Multiple Airlines Logo
12:30 pm - 3:35 pm
BWI
-
STI
26h 05m
1 stop
Multiple Airlines Logo
3:43 pm - 8:26 am
STI
-
BWI
16h 43m
1 stop
$303Multiple Airlines
Tue, Mar 3 - Sun, Mar 15
JetBlue Logo
3:57 pm - 8:03 am
DCA
-
STI
16h 06m
1 stop
JetBlue Logo
7:30 am - 2:38 pm
STI
-
DCA
7h 08m
1 stop
$338JetBlue
Tue, Apr 14 - Wed, Apr 29
JetBlue Logo
6:55 pm - 8:11 am
DCA
-
STI
13h 16m
1 stop
JetBlue Logo
8:01 am - 5:44 pm
STI
-
DCA
9h 43m
1 stop
$340JetBlue
Mon, Mar 9 - Tue, Apr 14
Delta Logo
1:19 pm - 7:15 pm
IAD
-
STI
5h 56m
1 stop
Delta Logo
8:40 pm - 12:39 pm
STI
-
IAD
15h 59m
1 stop
$489Delta
Tue, Mar 24 - Wed, Apr 1
American Airlines Logo
7:26 pm - 12:23 pm
IAD
-
STI
16h 57m
2 stops
American Airlines Logo
1:32 pm - 8:49 am
STI
-
IAD
19h 17m
2 stops
$493American Airlines
Tue, Apr 21 - Tue, May 5
Delta Logo
12:45 pm - 7:33 pm
IAD
-
STI
6h 48m
1 stop
Delta Logo
8:59 pm - 12:18 pm
STI
-
IAD
15h 19m
1 stop
$509Delta
Wed, May 6 - Mon, May 11
American Airlines Logo
5:00 am - 9:30 pm
IAD
-
STI
15h 30m
2 stops
American Airlines Logo
7:00 am - 8:29 pm
STI
-
IAD
13h 29m
2 stops
$538American Airlines
Tue, Mar 3 - Tue, Mar 10

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
Mar 3
BWI6:20 amBaltimore/Washington
8h 15m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 10
STI3:41 pmSantiago de los Caballeros
7h 50m
1 stop
BWI11:31 pmBaltimore/Washington
$256
Spirit Airlines
Apr 9
BWI4:05 pmBaltimore/Washington
9h 44m
1 stop
STI1:49 amSantiago de los Caballeros
Apr 15
STI3:40 pmSantiago de los Caballeros
8h 19m
1 stop
BWI11:59 pmBaltimore/Washington
$267
Spirit Airlines
Mar 3
BWI6:20 amBaltimore/Washington
8h 15m
1 stop
STI3:35 pmSantiago de los Caballeros
Mar 23
STI2:46 amSantiago de los Caballeros
6h 28m
1 stop
BWI9:14 amBaltimore/Washington
$282

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
Jun 4
IAD6:00 amWashington, D.C. Dulles Intl
6h 57m
1 stop
STI12:57 pmSantiago de los Caballeros
Jun 8
STI2:07 pmSantiago de los Caballeros
9h 05m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
$556
United Airlines
Jun 11
IAD6:00 amWashington, D.C. Dulles Intl
6h 57m
1 stop
STI12:57 pmSantiago de los Caballeros
Jun 15
STI2:07 pmSantiago de los Caballeros
9h 05m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
$624
United Airlines
Mar 13
IAD6:00 amWashington, D.C. Dulles Intl
7h 53m
1 stop
STI1:53 pmSantiago de los Caballeros
Mar 16
STI3:00 pmSantiago de los Caballeros
8h 19m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
$627

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 February 9, 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

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 3/3

6:20 am-3:35 pm

1 stop8h 15m

Santiago de los Caballeros

Tue 3/10

3:41 pm-11:31 pm

1 stop7h 50m

$256

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 4/9

4:05 pm-1:49 am

1 stop9h 44m

Santiago de los Caballeros

Wed 4/15

3:40 pm-11:59 pm

1 stop8h 19m

$267

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 3/3

6:20 am-3:35 pm

1 stop8h 15m

Santiago de los Caballeros

Mon 3/23

2:46 am-9:14 am

1 stop6h 28m

$282

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Tue 3/3

12:30 pm-3:35 pm

1 stop26h 05m

Santiago de los Caballeros

Sun 3/15

3:43 pm-8:26 am

1 stop16h 43m

$303

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Tue 4/14

3:57 pm-8:03 am

1 stop16h 06m

Santiago de los Caballeros

Wed 4/29

7:30 am-2:38 pm

1 stop7h 08m

$338

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 3/9

6:55 pm-8:11 am

1 stop13h 16m

Santiago de los Caballeros

Tue 4/14

8:01 am-5:44 pm

1 stop9h 43m

$340

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Tue 3/24

1:19 pm-7:15 pm

1 stop5h 56m

Santiago de los Caballeros

Wed 4/1

8:40 pm-12:39 pm

1 stop15h 59m

$489

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Tue 4/21

7:26 pm-12:23 pm

2 stops16h 57m

Santiago de los Caballeros

Tue 5/5

1:32 pm-8:49 am

2 stops19h 17m

$493

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Wed 5/6

12:45 pm-7:33 pm

1 stop6h 48m

Santiago de los Caballeros

Mon 5/11

8:59 pm-12:18 pm

1 stop15h 19m

$509

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Tue 3/3

5:00 am-9:30 pm

2 stops15h 30m

Santiago de los Caballeros

Tue 3/10

7:00 am-8:29 pm

2 stops13h 29m

$538

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 February is also cheap. Prices for this month can be found on momondo for an average of $508.

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

You could potentially save up to 33% 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 20m

Direct flights

None
The fastest flight from Washington, D.C. to Santiago de los Caballeros takes 6h 20m
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 20m, 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
8,438 reviews
Search Spirit Airlines flights
JetBluePriceFrom $417Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
United AirlinesPriceFrom $467Free CancellationRating
7.4
9,267 reviews
Search United Airlines flights
American AirlinesPriceFrom $476Free CancellationRating
7.2
11,259 reviews
Search American Airlines flights
DeltaPriceFrom $499Free CancellationRating
7.9
8,178 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.

An easier way to manage your Santiago de los Caballeros trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/11
Wed 3/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the Dominican Republic