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Cheap flights from Santiago de los Caballeros to Washington, D.C. from $213

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santiago de los Caballeros to Washington, D.C. departing on 11/5. 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 Santiago de los Caballeros to Washington, D.C.

Cheap round-trip flights

Delta Logo
6:35 am - 7:08 pmSTI-IAD
13h 33m1 stop
Delta Logo
5:06 pm - 12:39 amIAD-STI
6h 33m1 stop
$497Delta
Find Deal
Thu, Nov 27 - Wed, Dec 31
Delta Logo
6:00 am - 7:18 pmSTI-IAD
13h 18m1 stop
Delta Logo
12:09 pm - 8:06 pmIAD-STI
6h 57m1 stop
$521Delta
Find Deal
Sat, Nov 1 - Wed, Nov 5
American Airlines Logo
1:14 pm - 9:41 amSTI-IAD
20h 27m2 stops
American Airlines Logo
5:29 pm - 3:33 pmIAD-STI
21h 04m2 stops
$544American Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 5
United Airlines Logo
2:07 pm - 9:11 pmSTI-IAD
7h 04m1 stop
United Airlines Logo
6:15 am - 12:57 pmIAD-STI
6h 42m1 stop
$546United Airlines
Find Deal
Tue, Oct 7 - Sun, Oct 19
Delta Logo
6:35 am - 7:12 pmSTI-IAD
13h 37m1 stop
Delta Logo
7:59 pm - 1:08 pmIAD-STI
16h 09m1 stop
$563Delta
Find Deal
Fri, Feb 20 - Mon, Feb 23
United Airlines Logo
2:07 pm - 9:24 pmSTI-IAD
7h 17m1 stop
United Airlines Logo
6:15 am - 12:57 pmIAD-STI
6h 42m1 stop
$570United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 19
Delta Logo
8:40 pm - 11:57 amSTI-IAD
15h 17m1 stop
Delta Logo
12:08 pm - 7:11 pmIAD-STI
7h 03m1 stop
$589Delta
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
2:07 pm - 9:24 pmSTI-IAD
7h 17m1 stop
United Airlines Logo
6:15 am - 12:57 pmIAD-STI
6h 42m1 stop
$594United Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 17
American Airlines Logo
4:35 pm - 7:20 pmSTI-IAD
27h 45m2 stops
American Airlines Logo
4:33 pm - 2:24 pmIAD-STI
20h 51m2 stops
$629American Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 31
American Airlines Logo
1:29 pm - 8:46 amSTI-IAD
19h 17m2 stops
American Airlines Logo
8:12 pm - 12:13 pmIAD-STI
16h 01m2 stops
$636American Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5

Delta flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Nov 27
STI6:35 amSantiago de los Caballeros
13h 33m
1 stop
IAD7:08 pmWashington, D.C. Dulles Intl
Dec 31
IAD5:06 pmWashington, D.C. Dulles Intl
6h 33m
1 stop
STI12:39 amSantiago de los Caballeros
$497
Find similar
Delta
Nov 1
STI6:00 amSantiago de los Caballeros
13h 18m
1 stop
IAD7:18 pmWashington, D.C. Dulles Intl
Nov 5
IAD12:09 pmWashington, D.C. Dulles Intl
6h 57m
1 stop
STI8:06 pmSantiago de los Caballeros
$521
Find similar
Delta
Feb 20
STI6:35 amSantiago de los Caballeros
13h 37m
1 stop
IAD7:12 pmWashington, D.C. Dulles Intl
Feb 23
IAD7:59 pmWashington, D.C. Dulles Intl
16h 09m
1 stop
STI1:08 pmSantiago de los Caballeros
$563
Find similar

American Airlines flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Nov 1
STI1:14 pmSantiago de los Caballeros
20h 27m
2 stops
IAD9:41 amWashington, D.C. Dulles Intl
Nov 5
IAD5:29 pmWashington, D.C. Dulles Intl
21h 04m
2 stops
STI3:33 pmSantiago de los Caballeros
$544
Find similar
American Airlines
Nov 27
STI4:35 pmSantiago de los Caballeros
27h 45m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
Dec 31
IAD4:33 pmWashington, D.C. Dulles Intl
20h 51m
2 stops
STI2:24 pmSantiago de los Caballeros
$629
Find similar
American Airlines
Oct 1
STI1:29 pmSantiago de los Caballeros
19h 17m
2 stops
IAD8:46 amWashington, D.C. Dulles Intl
Oct 5
IAD8:12 pmWashington, D.C. Dulles Intl
16h 01m
2 stops
STI12:13 pmSantiago de los Caballeros
$636
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport 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 September 16, 2025.
Use the filters below to find and compare flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Thu 11/27

6:35 am-7:08 pm

1 stop13h 33m

Washington, D.C. Dulles Intl

Wed 12/31

5:06 pm-12:39 am

1 stop6h 33m

$497

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sat 11/1

6:00 am-7:18 pm

1 stop13h 18m

Washington, D.C. Dulles Intl

Wed 11/5

12:09 pm-8:06 pm

1 stop6h 57m

$521

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sat 11/1

1:14 pm-9:41 am

2 stops20h 27m

Washington, D.C. Dulles Intl

Wed 11/5

5:29 pm-3:33 pm

2 stops21h 04m

$544

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Tue 10/7

2:07 pm-9:11 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Sun 10/19

6:15 am-12:57 pm

1 stop6h 42m

$546

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Fri 2/20

6:35 am-7:12 pm

1 stop13h 37m

Washington, D.C. Dulles Intl

Mon 2/23

7:59 pm-1:08 pm

1 stop16h 09m

$563

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sat 10/4

2:07 pm-9:24 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Sun 10/19

6:15 am-12:57 pm

1 stop6h 42m

$570

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Wed 10/1

8:40 pm-11:57 am

1 stop15h 17m

Washington, D.C. Dulles Intl

Sun 10/5

12:08 pm-7:11 pm

1 stop7h 03m

$589

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sat 10/4

2:07 pm-9:24 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Fri 10/17

6:15 am-12:57 pm

1 stop6h 42m

$594

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Thu 11/27

4:35 pm-7:20 pm

2 stops27h 45m

Washington, D.C. Dulles Intl

Wed 12/31

4:33 pm-2:24 pm

2 stops20h 51m

$629

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Wed 10/1

1:29 pm-8:46 am

2 stops19h 17m

Washington, D.C. Dulles Intl

Sun 10/5

8:12 pm-12:13 pm

2 stops16h 01m

$636

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport

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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Saturday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $440. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport for around $489.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Santiago de los Caballeros in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $440 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $756 on average. Flights to Washington, D.C. Dulles Intl Airport from Santiago de los Caballeros at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport (STI to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport

Direct flights

None
There are no direct flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport.
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  • How far is Santiago de los Caballeros to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Santiago de los Caballeros to Washington, D.C. Dulles Intl is 1405.2 mi. In terms of flight time, this usually takes a little over 7h 04m.

  • When did momondo last update prices for flights from Santiago de los Caballeros Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Santiago de los Caballeros Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How old do you have to be to fly from Santiago de los Caballeros Airport to Washington, D.C. Dulles Intl 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 Santiago de los Caballeros Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl 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 Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

Why use momondo?

Why should I use momondo to find a flight deal from Santiago de los Caballeros to Washington, D.C.?

Finding the right flight to Washington, D.C. from Santiago de los Caballeros is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Santiago de los Caballeros to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Santiago de los Caballeros to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Santiago de los Caballeros to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Santiago de los Caballeros.

I’m not ready to book a flight from Santiago de los Caballeros to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Santiago de los Caballeros to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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