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Cheap flights from Washington, D.C. to Santiago de los Caballeros from $149

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 4/28. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Santiago de los Caballeros.
12:28 pm - 2:02 pmIAD-STI
25h 34m1 stop
3:24 pm - 11:28 amSTI-IAD
20h 04m1 stop
$361Frontier
Find Deal
Sun, Jun 1 - Mon, Jun 16
11:00 am - 5:33 pmBWI-STI
6h 33m1 stop
3:20 pm - 7:38 pmSTI-BWI
28h 18m1 stop
$369Frontier
Find Deal
Fri, May 16 - Fri, May 30
6:00 am - 1:15 pmDCA-STI
7h 15m1 stop
10:00 am - 10:58 pmSTI-DCA
12h 58m1 stop
$407JetBlue
Find Deal
Sat, May 10 - Wed, May 14
6:00 am - 1:15 pmDCA-STI
7h 15m1 stop
10:00 am - 10:58 pmSTI-DCA
12h 58m1 stop
$415JetBlue
Find Deal
Sat, May 10 - Fri, May 16
6:35 am - 12:20 pmBWI-STI
5h 45m1 stop
1:35 pm - 11:38 pmSTI-BWI
10h 03m1 stop
$465American Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
1:44 pm - 9:10 pmDCA-STI
7h 26m1 stop
1:30 pm - 8:08 pmSTI-DCA
6h 38m1 stop
$465American Airlines
Find Deal
Wed, Jul 23 - Mon, Jul 28
5:29 pm - 1:46 amIAD-STI
8h 17m1 stop
6:00 am - 2:28 pmSTI-IAD
8h 28m1 stop
$465United Airlines
Find Deal
Tue, Apr 29 - Fri, May 9
5:48 pm - 1:46 amIAD-STI
7h 58m1 stop
6:00 am - 2:27 pmSTI-IAD
8h 27m1 stop
$499United Airlines
Find Deal
Tue, May 20 - Mon, Jun 9
5:00 pm - 12:14 amDCA-STI
7h 14m1 stop
2:34 pm - 11:33 pmSTI-DCA
8h 59m1 stop
$510Delta
Find Deal
Sat, Jun 7 - Tue, Jun 10
4:31 pm - 12:27 amDCA-STI
7h 56m1 stop
1:30 pm - 10:45 pmSTI-DCA
9h 15m1 stop
$615Delta
Find Deal
Thu, May 1 - Sun, May 11

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
Apr 29
IAD5:29 pmWashington, D.C. Dulles Intl
8h 17m
1 stop
STI1:46 amSantiago de los Caballeros
May 9
STI6:00 amSantiago de los Caballeros
8h 28m
1 stop
IAD2:28 pmWashington, D.C. Dulles Intl
United Airlines
May 20
IAD5:48 pmWashington, D.C. Dulles Intl
7h 58m
1 stop
STI1:46 amSantiago de los Caballeros
Jun 9
STI6:00 amSantiago de los Caballeros
8h 27m
1 stop
IAD2:27 pmWashington, D.C. Dulles Intl
United Airlines
May 3
BWI6:45 amBaltimore/Washington
19h 01m
2 stops
STI1:46 amSantiago de los Caballeros
May 10
STI6:00 amSantiago de los Caballeros
15h 37m
2 stops
BWI9:37 pmBaltimore/Washington

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

Our best Frontier deals on Washington, D.C. to Santiago de los Caballeros flight tickets
Frontier
Jun 1
IAD12:28 pmWashington, D.C. Dulles Intl
25h 34m
1 stop
STI2:02 pmSantiago de los Caballeros
Jun 16
STI3:24 pmSantiago de los Caballeros
20h 04m
1 stop
IAD11:28 amWashington, D.C. Dulles Intl
Frontier
May 16
BWI11:00 amBaltimore/Washington
6h 33m
1 stop
STI5:33 pmSantiago de los Caballeros
May 30
STI3:20 pmSantiago de los Caballeros
28h 18m
1 stop
BWI7:38 pmBaltimore/Washington
Frontier
May 18
BWI7:38 pmBaltimore/Washington
21h 55m
2 stops
STI5:33 pmSantiago de los Caballeros
May 23
STI3:20 pmSantiago de los Caballeros
27h 10m
1 stop
BWI6:30 pmBaltimore/Washington

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 November is also cheap. Prices for this month can be found on momondo for an average of $464.

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 far in advance should I book a flight to Santiago de los Caballeros?

You are more likely to see cheaper flights to Santiago de los Caballeros from Washington, D.C. when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Santiago de los Caballeros for around $596 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago de los Caballeros from Washington, D.C. for as low as $443 on momondo.

How have Washington, D.C. to Santiago de los Caballeros flight prices changed over time?

As of March 2025, prices for Washington, D.C. to Santiago de los Caballeros flights are approximately 10% more expensive when compared to flights at the same time last year.

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

$149

Fastest flight time

5h 45m

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 $149. The best round-trip flight deal from Washington, D.C. to Santiago de los Caballeros found on momondo in the last 72 hours is $361.
The fastest flight from Washington, D.C. to Santiago de los Caballeros takes 5h 45m
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)

  • 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 5h 45m, 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 $257Free CancellationRating
6.3
7,884 reviews
Search Spirit Airlines flights
JetBluePriceFrom $383Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
DeltaPriceFrom $402Free CancellationRating
8.0
7,899 reviews
Search Delta flights
United AirlinesPriceFrom $437Free CancellationRating
7.4
8,614 reviews
Search United Airlines flights
American AirlinesPriceFrom $443Free CancellationRating
7.2
10,000 reviews
Search American 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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