DCA - STI

$206 Find Cheap Flights from Reagan Washington National Airport to Santiago de los Caballeros

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 10/12. 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

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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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

Sun, Nov 9 - Wed, Nov 12
JetBlue Logo
8:00 am - 4:15 pmDCA-STI
7h 15m1 stop
JetBlue Logo
7:11 am - 2:50 pmSTI-DCA
8h 39m1 stop
$436JetBlue
Find Deal
Wed, Sep 17 - Tue, Sep 23
JetBlue Logo
5:55 pm - 2:21 amDCA-STI
8h 26m1 stop
JetBlue Logo
1:12 pm - 10:56 pmSTI-DCA
9h 44m1 stop
$445JetBlue
Find Deal
Wed, Oct 1 - Sun, Oct 5
JetBlue Logo
5:20 pm - 2:21 amDCA-STI
9h 01m1 stop
JetBlue Logo
2:00 pm - 9:58 pmSTI-DCA
7h 58m1 stop
$446JetBlue
Find Deal
Mon, Sep 29 - Wed, Oct 1
JetBlue Logo
6:19 am - 6:04 pmDCA-STI
11h 45m1 stop
JetBlue Logo
1:12 pm - 10:56 pmSTI-DCA
9h 44m1 stop
$447JetBlue
Find Deal
Tue, Sep 23 - Tue, Oct 7
JetBlue Logo
5:42 pm - 2:21 amDCA-STI
8h 39m1 stop
JetBlue Logo
10:10 am - 6:56 pmSTI-DCA
8h 46m1 stop
$451JetBlue
Find Deal
Fri, Sep 12 - Sun, Sep 21
JetBlue Logo
6:19 am - 6:04 pmDCA-STI
11h 45m1 stop
JetBlue Logo
3:38 pm - 10:56 pmSTI-DCA
7h 18m1 stop
$452JetBlue
Find Deal
Thu, Sep 4 - Mon, Sep 15
JetBlue Logo
5:42 pm - 2:16 amDCA-STI
8h 34m1 stop
JetBlue Logo
3:30 pm - 10:56 pmSTI-DCA
7h 26m1 stop
$453JetBlue
Find Deal
Sat, Sep 6 - Fri, Sep 19
JetBlue Logo
6:19 am - 2:20 pmDCA-STI
8h 01m1 stop
JetBlue Logo
3:20 am - 10:56 pmSTI-DCA
19h 36m1 stop
$454JetBlue
Find Deal
Wed, Sep 17 - Tue, Sep 23
American Airlines Logo
10:45 pm - 12:27 pmDCA-STI
13h 42m2 stops
American Airlines Logo
1:29 pm - 7:30 amSTI-DCA
18h 01m2 stops
$469American Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
American Airlines Logo
7:00 am - 3:30 pmDCA-STI
7h 30m1 stop
American Airlines Logo
7:00 am - 9:29 pmSTI-DCA
15h 29m1 stop
$479American Airlines
Find Deal
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.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Santiago de los Caballeros?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros clicked on KAYAK for each day over the last 12 months.

When flying from Reagan Washington National Airport to Santiago de los Caballeros, you should consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Reagan Washington National Airport, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

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 September, where tickets cost $487 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $952 and $759 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 5 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$206
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 22% 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 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Santiago de los Caballeros was $206 for a one-way ticket and $436 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?

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Santiago de los Caballeros are Delta and American Airlines. With an average price for the route of $599 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $672 and an overall rating of 7.2.

  • 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 4 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.
8.0
DeltaOverall score based on 7981 reviews
8.2Boarding
7.9Comfort
7.3Food
7.9Entertainment
8.5Crew
Airline reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

10.0 ExcellentLee, Aug 2025ATL - PHL
Read more Delta reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Pretty good. The food was just mediocre, the boarding and crew were good.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Pitch was very small. Knees were on the seat back in front of me.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

flight was delayed for hours with no explanation. The plane was a very old aircraft.

Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.

It would have been nice if they had offered more than one set of snacks

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

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