Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to Santiago de los Caballeros from $105

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 8/30. 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

Spirit Airlines Logo
7:49 pm - 11:03 amBWI-STI
15h 14m1 stop
Spirit Airlines Logo
12:10 pm - 11:25 pmSTI-BWI
11h 15m1 stop
$298Spirit Airlines
Find Deal
Thu, Sep 25 - Tue, Oct 7
Spirit Airlines Logo
7:49 pm - 11:05 amBWI-STI
15h 16m1 stop
Spirit Airlines Logo
12:10 pm - 11:25 pmSTI-BWI
11h 15m1 stop
$302Spirit Airlines
Find Deal
Thu, Sep 25 - Tue, Oct 7
JetBlue Logo
11:45 am - 10:09 pmDCA-STI
10h 24m1 stop
JetBlue Logo
7:40 am - 8:50 pmSTI-DCA
13h 10m1 stop
$430JetBlue
Find Deal
Thu, Aug 21 - Sun, Aug 31
JetBlue Logo
8:00 am - 4:02 pmDCA-STI
8h 02m1 stop
JetBlue Logo
10:12 am - 4:56 pmSTI-DCA
6h 44m1 stop
$432JetBlue
Find Deal
Mon, Aug 25 - Fri, Aug 29
Delta Logo
12:08 pm - 7:11 pmIAD-STI
7h 03m1 stop
Delta Logo
8:31 pm - 11:57 amSTI-IAD
15h 26m1 stop
$465Delta
Find Deal
Sun, Sep 28 - Thu, Oct 9
American Airlines Logo
8:07 pm - 12:27 pmDCA-STI
16h 20m1 stop
American Airlines Logo
1:29 pm - 11:55 pmSTI-DCA
10h 26m2 stops
$469American Airlines
Find Deal
Thu, Sep 18 - Thu, Sep 25
American Airlines Logo
5:26 pm - 12:27 pmIAD-STI
19h 01m2 stops
American Airlines Logo
1:29 pm - 12:18 pmSTI-IAD
22h 49m2 stops
$469American Airlines
Find Deal
Thu, Sep 18 - Thu, Sep 25
Delta Logo
12:08 pm - 12:34 amIAD-STI
12h 26m1 stop
Delta Logo
8:40 pm - 11:56 amSTI-IAD
15h 16m1 stop
$485Delta
Find Deal
Thu, Sep 18 - Thu, Sep 25
United Airlines Logo
6:20 am - 3:12 pmIAD-STI
8h 52m1 stop
United Airlines Logo
2:07 pm - 9:11 pmSTI-IAD
7h 04m1 stop
$575United Airlines
Find Deal
Thu, Sep 18 - Fri, Oct 3
United Airlines Logo
6:20 am - 3:12 pmIAD-STI
8h 52m1 stop
United Airlines Logo
2:07 pm - 10:31 pmSTI-IAD
8h 24m1 stop
$705United Airlines
Find Deal
Fri, Sep 5 - Sun, Oct 5

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
Sep 18
DCA8:07 pmWashington, D.C. Reagan-National
16h 20m
1 stop
STI12:27 pmSantiago de los Caballeros
Sep 25
STI1:29 pmSantiago de los Caballeros
10h 26m
2 stops
DCA11:55 pmWashington, D.C. Reagan-National
$469
Find similar
American Airlines
Nov 13
IAD6:44 amWashington, D.C. Dulles Intl
13h 05m
2 stops
STI8:49 pmSantiago de los Caballeros
Nov 18
STI4:36 pmSantiago de los Caballeros
21h 59m
2 stops
IAD1:35 pmWashington, D.C. Dulles Intl
$479
Find similar
American Airlines
Sep 4
DCA8:07 pmWashington, D.C. Reagan-National
16h 20m
1 stop
STI12:27 pmSantiago de los Caballeros
Sep 15
STI1:29 pmSantiago de los Caballeros
18h 01m
2 stops
DCA7:30 amWashington, D.C. Reagan-National
$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
Sep 28
IAD12:08 pmWashington, D.C. Dulles Intl
7h 03m
1 stop
STI7:11 pmSantiago de los Caballeros
Oct 9
STI8:31 pmSantiago de los Caballeros
15h 26m
1 stop
IAD11:57 amWashington, D.C. Dulles Intl
$465
Find similar
Delta
Sep 18
IAD12:08 pmWashington, D.C. Dulles Intl
12h 26m
1 stop
STI12:34 amSantiago de los Caballeros
Sep 25
STI8:40 pmSantiago de los Caballeros
15h 16m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
$485
Find similar
Delta
Sep 4
IAD12:13 pmWashington, D.C. Dulles Intl
7h 11m
1 stop
STI7:24 pmSantiago de los Caballeros
Sep 15
STI8:40 pmSantiago de los Caballeros
15h 16m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
$505
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 August 2, 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 9/25

7:49 pm-11:03 am

1 stop15h 14m

Santiago de los Caballeros

Tue 10/7

12:10 pm-11:25 pm

1 stop11h 15m

$298

BaltimoreSantiago de los Caballeros

BWI - STI

BWISTI

Baltimore/Washington

Thu 9/25

7:49 pm-11:05 am

1 stop15h 16m

Santiago de los Caballeros

Tue 10/7

12:10 pm-11:25 pm

1 stop11h 15m

$302

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 8/21

11:45 am-10:09 pm

1 stop10h 24m

Santiago de los Caballeros

Sun 8/31

7:40 am-8:50 pm

1 stop13h 10m

$430

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Mon 8/25

8:00 am-4:02 pm

1 stop8h 02m

Santiago de los Caballeros

Fri 8/29

10:12 am-4:56 pm

1 stop6h 44m

$432

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Sun 9/28

12:08 pm-7:11 pm

1 stop7h 03m

Santiago de los Caballeros

Thu 10/9

8:31 pm-11:57 am

1 stop15h 26m

$465

Washington, D.C.Santiago de los Caballeros

DCA - STI

DCASTI

Washington, D.C. Reagan-National

Thu 9/18

8:07 pm-12:27 pm

1 stop16h 20m

Santiago de los Caballeros

Thu 9/25

1:29 pm-11:55 pm

2 stops10h 26m

$469

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 9/18

5:26 pm-12:27 pm

2 stops19h 01m

Santiago de los Caballeros

Thu 9/25

1:29 pm-12:18 pm

2 stops22h 49m

$469

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 9/18

12:08 pm-12:34 am

1 stop12h 26m

Santiago de los Caballeros

Thu 9/25

8:40 pm-11:56 am

1 stop15h 16m

$485

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Thu 9/18

6:20 am-3:12 pm

1 stop8h 52m

Santiago de los Caballeros

Fri 10/3

2:07 pm-9:11 pm

1 stop7h 04m

$575

Washington, D.C.Santiago de los Caballeros

IAD - STI

IADSTI

Washington, D.C. Dulles Intl

Fri 9/5

6:20 am-3:12 pm

1 stop8h 52m

Santiago de los Caballeros

Sun 10/5

2:07 pm-10:31 pm

1 stop8h 24m

$705

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 September. Flight prices, which tend to average around $435, 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 September, 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.

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

Best Price Found

$105

Fastest flight time

6h 03m

Direct flights

None

Airports in Santiago de los Caballeros

1 airport
The best one-way flight to Santiago de los Caballeros from Washington, D.C. in the past 72 hours is $105. The best round-trip flight deal from Washington, D.C. to Santiago de los Caballeros found on momondo in the last 72 hours is $298.
The fastest flight from Washington, D.C. to Santiago de los Caballeros takes 6h 03m
There are no direct flights from Washington, D.C. to Santiago de los Caballeros. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Santiago de los Caballeros Airport, Baltimore/Washington Airport - Santiago de los Caballeros Airport and Washington, D.C. Reagan-National Airport - Santiago de los Caballeros Airport.
There is 1 airport near Santiago de los Caballeros: Santiago de los Caballeros (STI)
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 10m, 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 $346Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
DeltaPriceFrom $402Free CancellationRating
8.0
7,983 reviews
Search Delta flights
JetBluePriceFrom $426Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
American AirlinesPriceFrom $443Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
8,904 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.

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
Thu 8/7
Thu 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the Dominican Republic