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Cheap flights from Santiago de los Caballeros to Washington, D.C. from $194

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 8/6. 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
6:45 am - 7:11 pmSTI-IAD
13h 26m1 stop
Delta Logo
4:15 pm - 11:59 pmIAD-STI
6h 44m1 stop
$494Delta
Find Deal
Thu, Nov 27 - Wed, Dec 31
United Airlines Logo
2:07 pm - 9:11 pmSTI-IAD
7h 04m1 stop
United Airlines Logo
6:00 am - 2:53 pmIAD-STI
7h 53m1 stop
$495United Airlines
Find Deal
Fri, Oct 24 - Mon, Dec 1
American Airlines Logo
1:29 pm - 8:46 amSTI-IAD
19h 17m2 stops
American Airlines Logo
7:21 pm - 12:27 pmIAD-STI
17h 06m2 stops
$518American Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 29
United Airlines Logo
2:07 pm - 9:24 pmSTI-IAD
7h 17m1 stop
United Airlines Logo
6:00 am - 2:53 pmIAD-STI
7h 53m1 stop
$519United Airlines
Find Deal
Sat, Oct 25 - Mon, Dec 1
Delta Logo
6:03 am - 7:43 pmSTI-IAD
13h 40m1 stop
Delta Logo
12:08 pm - 7:11 pmIAD-STI
7h 03m1 stop
$542Delta
Find Deal
Tue, Sep 9 - Wed, Sep 17
American Airlines Logo
7:00 am - 10:56 pmSTI-IAD
15h 56m2 stops
American Airlines Logo
2:21 pm - 12:27 pmIAD-STI
22h 06m2 stops
$565American Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 24
American Airlines Logo
4:36 pm - 10:29 amSTI-IAD
18h 53m2 stops
American Airlines Logo
8:10 pm - 3:25 pmIAD-STI
18h 15m2 stops
$623American Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 31
American Airlines Logo
4:36 pm - 10:29 amSTI-IAD
18h 53m2 stops
American Airlines Logo
8:10 pm - 3:25 pmIAD-STI
18h 15m2 stops
$625American Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 31
American Airlines Logo
4:36 pm - 10:29 amSTI-IAD
18h 53m2 stops
American Airlines Logo
8:10 pm - 3:25 pmIAD-STI
18h 15m2 stops
$626American Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 31
Logo
10:20 am - 2:23 pmSTI-IAD
28h 03m3 stops
Logo
10:20 pm - 8:05 pmIAD-STI
21h 45m2 stops
$1,360
Find Deal
Sun, Aug 17 - Wed, Aug 20

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
Sep 17
STI1:29 pmSantiago de los Caballeros
19h 17m
2 stops
IAD8:46 amWashington, D.C. Dulles Intl
Sep 29
IAD7:21 pmWashington, D.C. Dulles Intl
17h 06m
2 stops
STI12:27 pmSantiago de los Caballeros
$518
Find similar
American Airlines
Aug 27
STI7:00 amSantiago de los Caballeros
15h 56m
2 stops
IAD10:56 pmWashington, D.C. Dulles Intl
Sep 24
IAD2:21 pmWashington, D.C. Dulles Intl
22h 06m
2 stops
STI12:27 pmSantiago de los Caballeros
$565
Find similar
American Airlines
Nov 27
STI4:36 pmSantiago de los Caballeros
18h 53m
2 stops
IAD10:29 amWashington, D.C. Dulles Intl
Dec 31
IAD8:10 pmWashington, D.C. Dulles Intl
18h 15m
2 stops
STI3:25 pmSantiago de los Caballeros
$623
Find similar

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
STI6:45 amSantiago de los Caballeros
13h 26m
1 stop
IAD7:11 pmWashington, D.C. Dulles Intl
Dec 31
IAD4:15 pmWashington, D.C. Dulles Intl
6h 44m
1 stop
STI11:59 pmSantiago de los Caballeros
$494
Find similar
Delta
Sep 9
STI6:03 amSantiago de los Caballeros
13h 40m
1 stop
IAD7:43 pmWashington, D.C. Dulles Intl
Sep 17
IAD12:08 pmWashington, D.C. Dulles Intl
7h 03m
1 stop
STI7:11 pmSantiago de los Caballeros
$542
Find similar
Delta
Dec 21
STI3:35 amSantiago de los Caballeros
9h 15m
1 stop
IAD11:50 amWashington, D.C. Dulles Intl
Dec 30
IAD4:15 pmWashington, D.C. Dulles Intl
6h 44m
1 stop
STI11:59 pmSantiago de los Caballeros
$700
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 July 31, 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

6:45 am-7:11 pm

1 stop13h 26m

Washington, D.C. Dulles Intl

Wed 12/31

4:15 pm-11:59 pm

1 stop6h 44m

$494

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Fri 10/24

2:07 pm-9:11 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Mon 12/1

6:00 am-2:53 pm

1 stop7h 53m

$495

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Wed 9/17

1:29 pm-8:46 am

2 stops19h 17m

Washington, D.C. Dulles Intl

Mon 9/29

7:21 pm-12:27 pm

2 stops17h 06m

$518

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sat 10/25

2:07 pm-9:24 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Mon 12/1

6:00 am-2:53 pm

1 stop7h 53m

$519

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Tue 9/9

6:03 am-7:43 pm

1 stop13h 40m

Washington, D.C. Dulles Intl

Wed 9/17

12:08 pm-7:11 pm

1 stop7h 03m

$542

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Wed 8/27

7:00 am-10:56 pm

2 stops15h 56m

Washington, D.C. Dulles Intl

Wed 9/24

2:21 pm-12:27 pm

2 stops22h 06m

$565

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Thu 11/27

4:36 pm-10:29 am

2 stops18h 53m

Washington, D.C. Dulles Intl

Wed 12/31

8:10 pm-3:25 pm

2 stops18h 15m

$623

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Thu 11/27

4:36 pm-10:29 am

2 stops18h 53m

Washington, D.C. Dulles Intl

Wed 12/31

8:10 pm-3:25 pm

2 stops18h 15m

$625

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Thu 11/27

4:36 pm-10:29 am

2 stops18h 53m

Washington, D.C. Dulles Intl

Wed 12/31

8:10 pm-3:25 pm

2 stops18h 15m

$626

Santiago de los CaballerosWashington, D.C.

STI - IAD

STIIAD

Santiago de los Caballeros

Sun 8/17

10:20 am-2:23 pm

3 stops28h 03m

Washington, D.C. Dulles Intl

Wed 8/20

10:20 pm-8:05 pm

2 stops21h 45m

$1,360

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 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

Best Price Found

$194

Fastest flight time

7h 04m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Santiago de los Caballeros in the past 72 hours is $194. The best round-trip flight deal from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $494.
The fastest flight from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport takes 7h 04m
There are no direct flights from Santiago de los Caballeros to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Santiago de los Caballeros Airport - Washington, D.C. Dulles Intl Airport.
Search flight deals

  • 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
Arlington
National Harbor
Winchester
Woodbridge
Laurel
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Harpers Ferry
Towson
Rockville
Colonial Beach
Gaithersburg
Fairfax
Reston
Glen Burnie

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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