DCA - STI

$181 Find Cheap Flights from Reagan Washington National Airport to Santiago de los Caballeros - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Santiago de los Caballeros departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santiago de los Caballeros

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Santiago de los Caballeros, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Santiago de los Caballeros, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$376
Typical prices: $564-$489
JetBlue
Wed 9/23Sun 9/27
DCA - STI • 1 stop
Cheapest one-way
$181
Typical prices: $257-$320
JetBlue
Sun 8/16
DCA - STI • 1 stop
Top airlines
Cheapest • from $376 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Reagan-National and Santiago de los Caballeros. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $403 (round-trip)
Shortest trip • 7h 00m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Santiago de los Caballeros!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Santiago de los Caballeros (DCA-STI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Santiago de los Caballeros that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Santiago de los Caballeros

Wed, Sep 23 - Sun, Sep 27
JetBlue Logo
7:59 am - 1:27 pm
DCA
-
STI
5h 28m
1 stop
JetBlue Logo
3:49 pm - 11:31 pm
STI
-
DCA
7h 42m
1 stop
$376JetBlue
Wed, Sep 23 - Mon, Sep 28
JetBlue Logo
6:14 am - 1:27 pm
DCA
-
STI
7h 13m
1 stop
JetBlue Logo
3:49 pm - 11:31 pm
STI
-
DCA
7h 42m
1 stop
$391JetBlue
Tue, Sep 29 - Thu, Oct 1
JetBlue Logo
6:14 am - 1:27 pm
DCA
-
STI
7h 13m
1 stop
JetBlue Logo
3:49 pm - 11:31 pm
STI
-
DCA
7h 42m
1 stop
$396JetBlue
Wed, Oct 21 - Wed, Oct 28
JetBlue Logo
6:00 am - 2:45 pm
DCA
-
STI
8h 45m
1 stop
JetBlue Logo
3:44 pm - 11:34 pm
STI
-
DCA
7h 50m
1 stop
$398JetBlue
Thu, Sep 24 - Mon, Sep 28
JetBlue Logo
6:14 am - 1:27 pm
DCA
-
STI
7h 13m
1 stop
JetBlue Logo
10:05 am - 7:55 pm
STI
-
DCA
9h 50m
1 stop
$434JetBlue
Mon, Jul 27 - Wed, Aug 5
JetBlue Logo
7:59 am - 3:01 pm
DCA
-
STI
7h 02m
1 stop
JetBlue Logo
4:54 pm - 11:33 pm
STI
-
DCA
6h 39m
1 stop
$445JetBlue
Thu, Sep 17 - Mon, Sep 21
JetBlue Logo
7:59 am - 1:27 pm
DCA
-
STI
5h 28m
1 stop
JetBlue Logo
3:49 pm - 11:31 pm
STI
-
DCA
7h 42m
1 stop
$449JetBlue
Thu, Sep 17 - Wed, Sep 23
JetBlue Logo
6:14 am - 1:27 pm
DCA
-
STI
7h 13m
1 stop
JetBlue Logo
3:49 pm - 11:31 pm
STI
-
DCA
7h 42m
1 stop
$454JetBlue
Wed, Sep 16 - Tue, Sep 22
JetBlue Logo
7:59 am - 1:27 pm
DCA
-
STI
5h 28m
1 stop
JetBlue Logo
3:49 pm - 10:01 am
STI
-
DCA
18h 12m
1 stop
$457JetBlue
Wed, Sep 16 - Tue, Sep 22
JetBlue Logo
7:59 am - 1:27 pm
DCA
-
STI
5h 28m
1 stop
JetBlue Logo
3:49 pm - 1:12 pm
STI
-
DCA
21h 23m
1 stop
$466JetBlue
Booking Insights

KAYAK's insights & trends for Reagan-National to Santiago de los Caballeros flights

Get data-powered insights and trends into flights from Reagan-National to Santiago de los Caballeros to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros departing in September.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros is January, where tickets cost $467 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $740 and $667 respectively.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros, you should book around 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$181
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Reagan Washington National Airport to Santiago de los Caballeros

When to book flights from Reagan-National to Santiago de los Caballeros

Are your dates flexible? Find out the best times to travel from Reagan-National to Santiago de los Caballeros based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Santiago de los Caballeros flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros was $181 for a one-way ticket and $376 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Santiago de los Caballeros?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Reagan Washington National Airport and on arrival in Santiago de los Caballeros.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Santiago de los Caballeros?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Santiago de los Caballeros?

    Star Alliance, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and Santiago de los Caballeros, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Santiago de los Caballeros, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Santiago de los Caballeros are United Airlines and American Airlines. With an average price for the route of $574 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $625 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Santiago de los Caballeros?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Santiago de los Caballeros.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Santiago de los Caballeros?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santiago de los Caballeros from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Santiago de los Caballeros?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santiago de los Caballeros with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and STI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Santiago de los Caballeros?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santiago de los Caballeros from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Reagan-National to Santiago de los Caballeros

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Santiago de los Caballeros. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Santiago de los Caballeros? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9831 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
Airline reviews

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

6.0 GoodEnrique, Jun 2026
IAD - LAX
Read more United Airlines reviews

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

I like everything. Blythe at DCA is the absolute best!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

The gate attendant in Boston had a high raspy voice and spoke much too fast to be understood. Not pleasant.

Everything you need to know for your flight from Reagan-National to Santiago de los Caballeros

Information on your arrival and departure airports