$161+ Cheap flights from District of Columbia 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from District of Columbia to Santiago de los Caballeros with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from District of Columbia to Santiago de los Caballeros
Keep the following information in mind while searching for District of Columbia to Santiago de los Caballeros flight deals. Data was last updated October 31, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $412 (JetBlue) |
One-way from | $161 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $496 |
Find flight deals from District of Columbia to Santiago de los Caballeros
Cheapest flights from District of Columbia to Santiago de los CaballerosExplore the most affordable flight options available from District of Columbia to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2025.
Explore the most affordable flight options available from District of Columbia to Santiago de los Caballeros. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2025.
This Faresmojo deal was found by Cheapflights users on 10/29. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 10/29. 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.
This JetBlue deal was found by Cheapflights users on 10/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 10/30. 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.
This JetBlue deal was found by Cheapflights users on 10/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 10/31. 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.
This American Airlines deal was found by Cheapflights users on 10/29. 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.
This American Airlines deal was found by Cheapflights users on 10/31. 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.
This Priceline deal was found by Cheapflights users on 10/29. 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.
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Cheapflights Fare Finder
Use the filters below to find and compare flights from District of Columbia to Santiago de los Caballeros that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Thu 1/1
6:15 am-6:48 pm
2 stops11h 33m
Santiago de los Caballeros
Thu 3/5
9:25 am-4:52 pm
1 stop8h 27m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Thu 11/13
6:24 am-11:12 pm
1 stop15h 48m
Santiago de los Caballeros
Sun 11/16
4:41 am-2:36 pm
1 stop10h 55m
Washington, D.C.Santiago de los Caballeros
IAD - STI
IADSTI
Washington, D.C. Dulles Intl
Sun 2/22
1:18 am-2:56 pm
1 stop12h 38m
Santiago de los Caballeros
Mon 3/16
3:51 pm-4:15 am
1 stop12h 24m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Mon 12/15
7:51 pm-8:57 am
1 stop12h 06m
Santiago de los Caballeros
Mon 12/22
11:25 am-10:46 pm
1 stop12h 21m
Washington, D.C.Santiago de los Caballeros
IAD - STI
IADSTI
Washington, D.C. Dulles Intl
Wed 3/25
12:30 pm-11:27 pm
1 stop10h 57m
Santiago de los Caballeros
Wed 4/1
7:41 pm-11:53 am
1 stop16h 12m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Wed 11/26
5:44 pm-1:53 am
1 stop7h 09m
Santiago de los Caballeros
Sat 12/6
10:11 am-6:55 pm
1 stop9h 44m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Wed 11/26
5:44 pm-1:53 am
1 stop7h 09m
Santiago de los Caballeros
Fri 12/5
10:20 am-6:55 pm
1 stop9h 35m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Thu 11/27
8:19 am-10:56 pm
2 stops13h 37m
Santiago de los Caballeros
Thu 12/4
4:32 pm-12:38 am
1 stop9h 06m
Washington, D.C.Santiago de los Caballeros
DCA - STI
DCASTI
Washington, D.C. Reagan-National
Thu 1/22
6:30 pm-11:02 am
1 stop15h 32m
Santiago de los Caballeros
Sun 1/25
4:10 am-10:47 pm
1 stop19h 37m
Washington, D.C.Santiago de los Caballeros
IAD - STI
IADSTI
Washington, D.C. Dulles Intl
Thu 1/1
5:06 pm-2:51 am
1 stop8h 45m
Santiago de los Caballeros
Thu 3/5
6:35 am-7:12 pm
1 stop13h 37m
Best time to book a flight from District of Columbia to Santiago de los Caballeros
Have a flexible travel schedule? Discover the best time to fly to Santiago de los Caballeros from District of Columbia with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from District of Columbia to Santiago de los Caballeros
What is the cheapest month to book a flight from District of Columbia to Santiago de los Caballeros?
Currently, August is the cheapest month in which you can book a flight from District of Columbia to Santiago de los Caballeros (average of $214). Flying from District of Columbia to Santiago de los Caballeros in May is currently the most expensive (average of $346). 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 DC to STI?
Find hourly flight availability from District of Columbia 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 October 31, 2025.
It’s optimal to fly from District of Columbia to Santiago de los Caballeros at noon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from District of Columbia to Santiago de los Caballeros?
Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Santiago de los Caballeros. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their District of Columbia to Santiago de los Caballeros flight should consider departing on Friday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from District of Columbia 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.
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Alternative routes for District of Columbia to Santiago de los Caballeros
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from District of Columbia to Santiago de los Caballeros
Discover the top 5 airlines that operate flights from District of Columbia 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 October 31, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$322 | Average$482 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$426 | Average$537 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$483 | Average$599 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$484 | Average$638 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$488 | Average$728 | FlexibilityNo cancel fee | On-time69% |