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Cheap flights from Washington to Santiago de los Caballeros 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 Washington to Santiago de los Caballeros departing on 12/1. 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

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Find the cheapest flights from Washington to Santiago de los Caballeros

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:55 pm - 6:46 pmSEA-STI
16h 51m1 stop
Delta Logo
6:35 am - 7:25 pmSTI-SEA
16h 50m1 stop
$450Delta
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Mon, Jan 19 - Fri, Jan 23
Delta Logo
11:05 pm - 6:46 pmSEA-STI
15h 41m2 stops
Delta Logo
6:35 am - 10:16 pmSTI-SEA
19h 41m1 stop
$454Delta
Find Deal
Mon, Jan 19 - Fri, Jan 23
American Airlines Logo
10:45 pm - 3:32 pmPDX-STI
12h 47m1 stop
American Airlines Logo
4:32 pm - 11:52 pmSTI-PDX
11h 20m1 stop
$468American Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 9
Delta Logo
11:15 pm - 12:59 amPDX-STI
21h 44m2 stops
Delta Logo
6:35 am - 8:52 pmSTI-PDX
18h 17m2 stops
$472Delta
Find Deal
Sat, Nov 22 - Sat, Dec 6
American Airlines Logo
10:45 pm - 3:32 pmPDX-STI
12h 47m1 stop
American Airlines Logo
4:32 pm - 11:52 pmSTI-PDX
11h 20m1 stop
$493American Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 8
JetBlue Logo
11:56 pm - 2:21 amSEA-STI
23h 25m1 stop
JetBlue Logo
5:45 am - 10:36 pmSTI-SEA
19h 51m1 stop
$498JetBlue
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Wed, Oct 22 - Sat, Oct 25
Multiple Airlines Logo
9:56 am - 2:42 amSEA-STI
12h 46m2 stops
Multiple Airlines Logo
3:43 am - 10:45 amSTI-SEA
11h 02m1 stop
$536Multiple Airlines
Find Deal
Thu, Dec 11 - Wed, Dec 17
United Airlines Logo
5:00 am - 11:46 amPDX-STI
26h 46m2 stops
United Airlines Logo
12:52 pm - 11:03 amSTI-PDX
26h 11m3 stops
$602United Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 8
United Airlines Logo
4:02 pm - 11:46 amPDX-STI
15h 44m2 stops
United Airlines Logo
4:00 pm - 11:03 amSTI-PDX
23h 03m3 stops
$633United Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 8
Multiple Airlines Logo
8:55 am - 2:42 amSEA-STI
13h 47m1 stop
Multiple Airlines Logo
3:43 am - 10:45 amSTI-SEA
11h 02m1 stop
$720Multiple Airlines
Find Deal
Thu, Dec 11 - Wed, Dec 17

Delta flights from State of Washington to Santiago de los Caballeros

Our best Delta deals on State of Washington to Santiago de los Caballeros flight tickets
Delta
Jan 19
SEA9:55 pmSeattle/Tacoma Intl
16h 51m
1 stop
STI6:46 pmSantiago de los Caballeros
Jan 23
STI6:35 amSantiago de los Caballeros
16h 50m
1 stop
SEA7:25 pmSeattle/Tacoma Intl
$450
Find similar
Delta
Jan 19
SEA11:05 pmSeattle/Tacoma Intl
15h 41m
2 stops
STI6:46 pmSantiago de los Caballeros
Jan 23
STI6:35 amSantiago de los Caballeros
19h 41m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$454
Find similar
Delta
Nov 22
PDX11:15 pmPortland
21h 44m
2 stops
STI12:59 amSantiago de los Caballeros
Dec 6
STI6:35 amSantiago de los Caballeros
18h 17m
2 stops
PDX8:52 pmPortland
$472
Find similar

American Airlines flights from State of Washington to Santiago de los Caballeros

Our best American Airlines deals on State of Washington to Santiago de los Caballeros flight tickets
American Airlines
Nov 25
PDX10:45 pmPortland
12h 47m
1 stop
STI3:32 pmSantiago de los Caballeros
Dec 9
STI4:32 pmSantiago de los Caballeros
11h 20m
1 stop
PDX11:52 pmPortland
$468
Find similar
American Airlines
Nov 24
PDX10:45 pmPortland
12h 47m
1 stop
STI3:32 pmSantiago de los Caballeros
Dec 8
STI4:32 pmSantiago de los Caballeros
11h 20m
1 stop
PDX11:52 pmPortland
$493
Find similar
American Airlines
Nov 23
PDX12:59 amPortland
17h 57m
2 stops
STI10:56 pmSantiago de los Caballeros
Dec 8
STI4:32 pmSantiago de los Caballeros
11h 20m
1 stop
PDX11:52 pmPortland
$497
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 October 13, 2025.
Use the filters below to find and compare flights from Washington to Santiago de los Caballeros that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Mon 1/19

9:55 pm-6:46 pm

1 stop16h 51m

Santiago de los Caballeros

Fri 1/23

6:35 am-7:25 pm

1 stop16h 50m

$450

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Mon 1/19

11:05 pm-6:46 pm

2 stops15h 41m

Santiago de los Caballeros

Fri 1/23

6:35 am-10:16 pm

1 stop19h 41m

$454

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Tue 11/25

10:45 pm-3:32 pm

1 stop12h 47m

Santiago de los Caballeros

Tue 12/9

4:32 pm-11:52 pm

1 stop11h 20m

$468

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Sat 11/22

11:15 pm-12:59 am

2 stops21h 44m

Santiago de los Caballeros

Sat 12/6

6:35 am-8:52 pm

2 stops18h 17m

$472

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

10:45 pm-3:32 pm

1 stop12h 47m

Santiago de los Caballeros

Mon 12/8

4:32 pm-11:52 pm

1 stop11h 20m

$493

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Wed 10/22

11:56 pm-2:21 am

1 stop23h 25m

Santiago de los Caballeros

Sat 10/25

5:45 am-10:36 pm

1 stop19h 51m

$498

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 12/11

9:56 am-2:42 am

2 stops12h 46m

Santiago de los Caballeros

Wed 12/17

3:43 am-10:45 am

1 stop11h 02m

$536

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

5:00 am-11:46 am

2 stops26h 46m

Santiago de los Caballeros

Mon 12/8

12:52 pm-11:03 am

3 stops26h 11m

$602

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 11/24

4:02 pm-11:46 am

2 stops15h 44m

Santiago de los Caballeros

Mon 12/8

4:00 pm-11:03 am

3 stops23h 03m

$633

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 12/11

8:55 am-2:42 am

1 stop13h 47m

Santiago de los Caballeros

Wed 12/17

3:43 am-10:45 am

1 stop11h 02m

$720

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 Santiago de los Caballeros from

How to get the cheapest flight ticket from State of Washington 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 day to depart on your flight to Santiago de los Caballeros?

The cheapest day to depart from State of Washington to Santiago de los Caballeros is on a Tuesday when prices can be found for as low as $591. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Santiago de los Caballeros for around $812.

What is the cheapest time of day to depart on your flight to Santiago de los Caballeros?

Our data shows that the cheapest State of Washington 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 $593. In the evening is when there is more demand to fly to Santiago de los Caballeros, so prices are often more expensive at around $725 per ticket.

Can stopping save me money on State of Washington to Santiago de los Caballeros flights?

You could potentially save up to 23% on your flight if you consider stops on a State of Washington to Santiago de los Caballeros flight.

Cheap State of Washington to Santiago de los Caballeros flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Santiago de los Caballeros

Direct flights

None
There are no direct flights from State of Washington to Santiago de los Caballeros. There are no popular flight routes from State of Washington to Santiago de los Caballeros.
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  • When did momondo last update prices for flights from Washington to Santiago de los Caballeros Airport?

    Prices for flights from Washington to Santiago de los Caballeros Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Santiago de los Caballeros Airport?

  • How old do you have to be to fly from Washington to Santiago de los Caballeros Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Santiago de los Caballeros Airport.

  • What documentation or ID do you need to fly to Santiago de los Caballeros Airport?

    The travel and health documents required for your trip to Santiago de los Caballeros Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santiago de los Caballeros Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Santiago de los Caballeros

Compare and see reviews for airlines that fly from State of Washington to Santiago de los Caballeros with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $490Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Santiago de los Caballeros for you.

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

Yes. All flights to Santiago de los Caballeros from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Santiago de los Caballeros?

momondo provides multiple filters to help you find the best flight to Santiago de los Caballeros from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Washington 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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