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Santiago de los Caballeros

$257+ Cheap flights from Washington to Santiago de los Caballeros (STI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STI
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheap flight deals from Washington to Santiago de los Caballeros

Keep the following information in mind while searching for Washington to Santiago de los Caballeros flight deals. Data was last updated April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$471
(Delta)

One-way from

$257
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$725
Provider with most accurate pricing for Seattle/Tacoma Intl-Santiago de los Caballeros flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Santiago de los Caballeros flights.
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From Washington to Santiago de los Caballeros
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One-way flight from Washington to Santiago de los Caballeros
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Highest demand for flights based on searches. 6% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Washington to Santiago de los Caballeros

Cheapest flights from Washington to Santiago de los Caballeros
Explore the most affordable flight options available from Washington to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This Delta deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:23 amSEA - STI
1 stop14h 04mDelta
Tue 5/61:24 pmSTI - SEA
1 stop12h 20mDelta
Deal found 4/4$471
This American Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:40 pmSEA - STI
2 stops15h 44mAmerican Airlines
Wed 8/61:40 pmSTI - SEA
2 stops14h 04mAmerican Airlines
Deal found 4/3$510
This American Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:45 pmPDX - STI
2 stops14h 35mAmerican Airlines
Mon 9/291:35 pmSTI - PDX
2 stops23h 55mAmerican Airlines
Deal found 4/3$541
This JetBlue Airways deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2411:55 pmSEA - STI
1 stop14h 14mJetBlue
Wed 5/78:45 amSTI - SEA
1 stop15h 09mJetBlue
Deal found 4/3$553
This United deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:15 amSEA - STI
2 stops16h 31mUnited Airlines
Wed 5/76:00 amSTI - SEA
3 stops18h 31mUnited Airlines
Deal found 4/3$565
This United Airlines deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:56 pmPDX - STI
1 stop11h 01mUnited Airlines
Wed 9/106:00 amSTI - PDX
2 stops14h 38mUnited Airlines
Deal found 4/4$569
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:30 amPDX - STI
2 stops16h 43mDelta
Thu 9/256:20 amSTI - PDX
2 stops18h 34mDelta
Deal found 4/3$584
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/205:00 amGEG - STI
2 stops16h 14mDelta
Thu 6/56:11 amSTI - GEG
2 stops20h 27mDelta
Deal found 4/3$644
This Priceline deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2512:42 pmPDX - STI
2 stops18h 47mSpirit Airlines
Fri 7/411:29 amSTI - PDX
2 stops27h 18mSpirit Airlines
Deal found 4/3$703
This Mytrip deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/223:58 pmSEA - STI
2 stops15h 31mMultiple Airlines
Thu 7/1010:58 amSTI - SEA
3 stops34h 40mMultiple Airlines
Deal found 4/3$811

Cheapflights Fare Finder

Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2025.
Use the filters below to find and compare flights from Washington to Santiago de los Caballeros that are best for you.

Fly from

Washington

Fly to

Santiago de los Caballeros

Route

Depart

Return

Price

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 4/24

7:23 am-12:27 am

1 stop14h 04m

Santiago de los Caballeros

Tue 5/6

1:24 pm-10:44 pm

1 stop12h 20m

$471

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Wed 7/16

5:40 pm-12:24 pm

2 stops15h 44m

Santiago de los Caballeros

Wed 8/6

1:40 pm-12:44 am

2 stops14h 04m

$510

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Mon 9/15

6:45 pm-12:20 pm

2 stops14h 35m

Santiago de los Caballeros

Mon 9/29

1:35 pm-10:30 am

2 stops23h 55m

$541

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 4/24

11:55 pm-5:09 pm

1 stop14h 14m

Santiago de los Caballeros

Wed 5/7

8:45 am-8:54 pm

1 stop15h 09m

$553

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Thu 4/24

6:15 am-1:46 am

2 stops16h 31m

Santiago de los Caballeros

Wed 5/7

6:00 am-9:31 pm

3 stops18h 31m

$565

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Wed 8/20

10:56 pm-12:57 pm

1 stop11h 01m

Santiago de los Caballeros

Wed 9/10

6:00 am-5:38 pm

2 stops14h 38m

$569

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Thu 9/18

5:30 am-1:13 am

2 stops16h 43m

Santiago de los Caballeros

Thu 9/25

6:20 am-9:54 pm

2 stops18h 34m

$584

SpokaneSantiago de los Caballeros

GEG - STI

GEGSTI

Spokane

Tue 5/20

5:00 am-12:14 am

2 stops16h 14m

Santiago de los Caballeros

Thu 6/5

6:11 am-11:38 pm

2 stops20h 27m

$644

PortlandSantiago de los Caballeros

PDX - STI

PDXSTI

Portland

Wed 6/25

12:42 pm-10:29 am

2 stops18h 47m

Santiago de los Caballeros

Fri 7/4

11:29 am-11:47 am

2 stops27h 18m

$703

SeattleSantiago de los Caballeros

SEA - STI

SEASTI

Seattle/Tacoma Intl

Sun 6/22

3:58 pm-10:29 am

2 stops15h 31m

Santiago de los Caballeros

Thu 7/10

10:58 am-6:38 pm

3 stops34h 40m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 15 results
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Best time to book a flight from Washington to Santiago de los Caballeros

Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Santiago de los Caballeros

What is the cheapest month to book a flight from State of Washington to Santiago de los Caballeros?

Currently, May is the cheapest month in which you can book a flight from State of Washington to Santiago de los Caballeros (average of $347). Flying from State of Washington to Santiago de los Caballeros in July is currently the most expensive (average of $631). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to STI?

Find hourly flight availability from Washington to Santiago de los Caballeros. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 4, 2025.

When flying from State of Washington to Santiago de los Caballeros, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Santiago de los Caballeros ranges from 3.0 - 11.6 inches per month. December is typically the wettest month, when rainfall can reach 11.6 in. July is typically the driest time to visit Santiago de los Caballeros when rainfall is around 3.0 in.

Temperature in Santiago de los Caballeros by month

Plan your trip to Santiago de los Caballeros by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Santiago de los Caballeros, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

Reviews of airlines servicing Santiago de los Caballeros

Get insights into the airlines that provide service to Santiago de los Caballeros. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago de los Caballeros. Reviews last updated April 4, 2025.
To help decide which airline to fly from Washington to Santiago de los Caballeros, see what other customers have to say about Delta, United Airlines and JetBlue. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,618 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.3
Good
2,920 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Spirit Airlines
6.3
Okay
7,890 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington to Santiago de los Caballeros. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santiago de los Caballeros from Washington?

    Most people fly into Santiago de los Caballeros (STI) if they book a flight to Santiago de los Caballeros from Washington. Santiago is conveniently located just 6.8 mi from Santiago de los Caballeros’s city center.

  • What are the cheapest airlines to fly from State of Washington to Santiago de los Caballeros one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $257. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from State of Washington to Santiago de los Caballeros for a low price.

  • What are the most popular routes from State of Washington to Santiago de los Caballeros?

    When deciding which route to take from State of Washington to Santiago de los Caballeros consider Seattle/Tacoma Intl - Santiago de los Caballeros, Portland - Santiago de los Caballeros or Spokane - Santiago de los Caballeros as they are the most popular.

  • Can I find deals for flights from Washington to Santiago de los Caballeros that include hotel bookings?

    Yes. In addition to deals on Washington to Santiago de los Caballeros flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Santiago de los Caballeros?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Santiago de los Caballeros.

  • Can I find deals for business class flights from Washington to Santiago de los Caballeros?

    Yes. Cheapflights offers flight deals from Washington to Santiago de los Caballeros by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Santiago de los Caballeros?

    Currently, May is the cheapest month in which you can book a flight from State of Washington to Santiago de los Caballeros (average of $347). Flying from State of Washington to Santiago de los Caballeros in July is currently the most expensive (average of $631). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington to Santiago de los Caballeros

See prices for flight routes from nearby airports that may be better suited for you.
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Philadelphia to Santo Domingo flights
LaGuardia to Puerto Plata flights
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Minneapolis to Punta Cana flights
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Dulles Intl to Santo Domingo flights
Detroit to Punta Cana flights
Dallas/Fort Worth to Santo Domingo flights
Fort Lauderdale to Santiago de los Caballeros flights
Atlantic City to Punta Cana flights
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Top 2 airlines flying from Washington to Santiago de los Caballeros

Discover the top 2 airlines that operate flights from Washington to Santiago de los Caballeros. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$470Average$625FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$490Average$767FlexibilityNo cancel feeOn-time71%

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