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Cheap flights from Washington to Santiago de los Caballeros from $395

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 5/27. 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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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
3:30 pm - 12:03 pm
SEA
-
STI
17h 33m
1 stop
Delta Logo
9:31 pm - 2:25 pm
STI
-
SEA
20h 54m
1 stop
$681Delta
Wed, Oct 28 - Sat, Nov 7
Delta Logo
7:35 pm - 12:03 pm
SEA
-
STI
13h 28m
2 stops
Delta Logo
9:31 pm - 2:50 pm
STI
-
SEA
21h 19m
2 stops
$686Delta
Wed, Oct 28 - Sat, Nov 7
JetBlue Logo
11:39 pm - 7:44 pm
SEA
-
STI
17h 05m
1 stop
JetBlue Logo
8:14 am - 8:56 pm
STI
-
SEA
15h 42m
1 stop
$712JetBlue
Mon, Jun 1 - Thu, Jun 4
American Airlines Logo
5:18 am - 9:03 pm
PDX
-
STI
12h 45m
2 stops
American Airlines Logo
7:00 am - 5:51 pm
STI
-
PDX
13h 51m
2 stops
$715American Airlines
Fri, Aug 21 - Mon, Aug 24
JetBlue Logo
10:15 pm - 1:50 pm
SEA
-
STI
12h 35m
1 stop
JetBlue Logo
6:30 am - 10:38 pm
STI
-
SEA
19h 08m
1 stop
$717JetBlue
Sat, Oct 17 - Tue, Oct 20
American Airlines Logo
8:45 pm - 2:44 pm
SEA
-
STI
14h 59m
1 stop
American Airlines Logo
7:00 am - 12:20 am
STI
-
SEA
20h 20m
1 stop
$718American Airlines
Mon, Jul 27 - Mon, Aug 24
Delta Logo
3:30 pm - 12:40 pm
SEA
-
STI
18h 10m
1 stop
Delta Logo
8:31 pm - 10:35 am
STI
-
SEA
17h 04m
1 stop
$724Delta
Thu, Oct 1 - Mon, Oct 12
JetBlue Logo
11:52 pm - 9:02 pm
SEA
-
STI
18h 10m
1 stop
JetBlue Logo
5:01 am - 8:56 pm
STI
-
SEA
18h 55m
1 stop
$725JetBlue
Thu, May 28 - Wed, Jun 3
United Airlines Logo
11:17 pm - 12:57 pm
PDX
-
STI
10h 40m
1 stop
United Airlines Logo
6:00 am - 10:03 pm
STI
-
PDX
19h 03m
1 stop
$811United Airlines
Fri, Aug 21 - Mon, Aug 24
United Airlines Logo
2:14 pm - 3:12 pm
PDX
-
STI
21h 58m
2 stops
United Airlines Logo
4:23 pm - 7:18 pm
STI
-
PDX
29h 55m
2 stops
$835United Airlines
Sat, Oct 3 - Wed, Oct 7

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
Oct 28
SEA3:30 pmSeattle/Tacoma Intl
17h 33m
1 stop
STI12:03 pmSantiago de los Caballeros
Nov 7
STI9:31 pmSantiago de los Caballeros
20h 54m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
$681
Delta
Oct 28
SEA7:35 pmSeattle/Tacoma Intl
13h 28m
2 stops
STI12:03 pmSantiago de los Caballeros
Nov 7
STI9:31 pmSantiago de los Caballeros
21h 19m
2 stops
SEA2:50 pmSeattle/Tacoma Intl
$686
Delta
Oct 1
SEA3:30 pmSeattle/Tacoma Intl
18h 10m
1 stop
STI12:40 pmSantiago de los Caballeros
Oct 12
STI8:31 pmSantiago de los Caballeros
17h 04m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$724

JetBlue flights from State of Washington to Santiago de los Caballeros

Our best JetBlue deals on State of Washington to Santiago de los Caballeros flight tickets
JetBlue
Jun 1
SEA11:39 pmSeattle/Tacoma Intl
17h 05m
1 stop
STI7:44 pmSantiago de los Caballeros
Jun 4
STI8:14 amSantiago de los Caballeros
15h 42m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
$712
JetBlue
Oct 17
SEA10:15 pmSeattle/Tacoma Intl
12h 35m
1 stop
STI1:50 pmSantiago de los Caballeros
Oct 20
STI6:30 amSantiago de los Caballeros
19h 08m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
$717
JetBlue
May 28
SEA11:52 pmSeattle/Tacoma Intl
18h 10m
1 stop
STI9:02 pmSantiago de los Caballeros
Jun 3
STI5:01 amSantiago de los Caballeros
18h 55m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
$725

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 May 11, 2026.
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

Cheapest round-trip

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Wed 10/28

3:30 pm-12:03 pm

1 stop17h 33m

Santiago de los Caballeros

Sat 11/7

9:31 pm-2:25 pm

1 stop20h 54m

$681

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Wed 10/28

7:35 pm-12:03 pm

2 stops13h 28m

Santiago de los Caballeros

Sat 11/7

9:31 pm-2:50 pm

2 stops21h 19m

$686

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Mon 6/1

11:39 pm-7:44 pm

1 stop17h 05m

Santiago de los Caballeros

Thu 6/4

8:14 am-8:56 pm

1 stop15h 42m

$712
Quickest round-trip

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Fri 8/21

5:18 am-9:03 pm

2 stops12h 45m

Santiago de los Caballeros

Mon 8/24

7:00 am-5:51 pm

2 stops13h 51m

$715

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Sat 10/17

10:15 pm-1:50 pm

1 stop12h 35m

Santiago de los Caballeros

Tue 10/20

6:30 am-10:38 pm

1 stop19h 08m

$717

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Mon 7/27

8:45 pm-2:44 pm

1 stop14h 59m

Santiago de los Caballeros

Mon 8/24

7:00 am-12:20 am

1 stop20h 20m

$718

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 10/1

3:30 pm-12:40 pm

1 stop18h 10m

Santiago de los Caballeros

Mon 10/12

8:31 pm-10:35 am

1 stop17h 04m

$724

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 5/28

11:52 pm-9:02 pm

1 stop18h 10m

Santiago de los Caballeros

Wed 6/3

5:01 am-8:56 pm

1 stop18h 55m

$725

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Fri 8/21

11:17 pm-12:57 pm

1 stop10h 40m

Santiago de los Caballeros

Mon 8/24

6:00 am-10:03 pm

1 stop19h 03m

$811

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Sat 10/3

2:14 pm-3:12 pm

2 stops21h 58m

Santiago de los Caballeros

Wed 10/7

4:23 pm-7:18 pm

2 stops29h 55m

$835

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

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

You could potentially save up to 50% 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

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from State of Washington to Santiago de los Caballeros takes 10h 40m
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.
Search flight deals

Frequently asked questions about flying from Washington to Santiago de los Caballeros

  • 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 $501Free CancellationRating
7.1
11,667 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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