HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luis Munoz Marin Intl

$111+ Cheap flights from Reagan-National (DCA) to Luis Munoz Marin Intl (SJU)

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
Mar 10 — Mar 171
Tue 3/10
Tue 3/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Luis Munoz Marin Intl 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.
Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl are usually found in October or February, booked 81 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Reagan-National to Luis Munoz Marin Intl

Cheapest flights from Reagan-National to Luis Munoz Marin Intl
Explore the most affordable flight options available from Reagan-National to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 8, 2026.

This Delta deal was found by Cheapflights users on 2/5. 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.
Mon 2/239:00 am
DCA
-
SJU
1 stop7h 27m
Delta
Wed 3/47:00 am
SJU
-
DCA
1 stop10h 27m
Delta
Deal found 2/5$232
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Tue 2/246:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/4$238
This Super.com deal was found by Cheapflights users on 2/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Wed 3/46:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/5$239
This Super.com deal was found by Cheapflights users on 2/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Wed 2/256:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/5$240
This Cheapflightsfares deal was found by Cheapflights users on 2/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Wed 3/46:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/5$242
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Wed 2/256:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/4$243
This JetBlue deal was found by Cheapflights users on 2/5. 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.
Mon 2/168:00 am
DCA
-
SJU
Nonstop3h 46m
JetBlue
Tue 2/246:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/5$244
This Cheapflightsfares deal was found by Cheapflights users on 2/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:59 pm
DCA
-
SJU
1 stop9h 30m
JetBlue
Wed 4/812:55 pm
SJU
-
DCA
1 stop8h 20m
JetBlue
Deal found 2/7$246
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:59 pm
DCA
-
SJU
1 stop6h 59m
JetBlue
Fri 2/276:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/4$248
This United Airlines deal was found by Cheapflights users on 2/6. 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.
Sat 2/2111:00 am
DCA
-
SJU
1 stop9h 26m
United Airlines
Wed 2/257:40 am
SJU
-
DCA
1 stop9h 15m
United Airlines
Deal found 2/6$252
This JetBlue deal was found by Cheapflights users on 2/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:59 pm
DCA
-
SJU
1 stop8h 00m
JetBlue
Thu 2/266:10 am
SJU
-
DCA
1 stop7h 49m
JetBlue
Deal found 2/4$253

Find flight deals from Reagan-National to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$232
(Delta)

One-way from

$111
(SmartFares)

Popular in

August

Cheapest in

October

Average price

$362

Good round-trip deal

$291 or less

Good one-way deal

$190 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to San Juan Luis Munoz Marin Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Luis Munoz Marin Intl 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 February 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Reagan-National

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 4/21

10:10 am-8:24 pm

1 stop10h 14m

San Juan Luis Munoz Marin Intl

Fri 4/24

2:03 pm-10:50 pm

1 stop8h 47m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 4/27

7:00 am-1:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Thu 4/30

1:00 am-8:20 am

1 stop7h 20m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 2/16

11:00 am-9:26 pm

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Thu 2/19

7:40 am-3:55 pm

1 stop9h 15m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 2/21

8:59 am-5:27 pm

1 stop7h 28m

San Juan Luis Munoz Marin Intl

Thu 2/26

6:15 am-5:00 pm

1 stop11h 45m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 2/21

11:00 am-9:26 pm

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:40 am-3:55 pm

1 stop9h 15m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 2/23

6:00 am-4:50 pm

1 stop9h 50m

San Juan Luis Munoz Marin Intl

Wed 2/25

2:16 pm-10:12 pm

1 stop8h 56m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 2/16

11:00 am-9:26 pm

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Sat 2/21

10:15 am-8:56 pm

1 stop11h 41m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 4/20

6:59 am-4:23 pm

1 stop9h 24m

San Juan Luis Munoz Marin Intl

Fri 4/24

2:03 pm-10:50 pm

1 stop8h 47m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 2/22

6:00 pm-6:11 am

2 stops11h 11m

San Juan Luis Munoz Marin Intl

Tue 2/24

2:05 am-8:29 am

1 stop7h 24m

$252

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 2/24

7:59 am-5:27 pm

1 stop8h 28m

San Juan Luis Munoz Marin Intl

Thu 2/26

6:15 am-12:40 pm

1 stop7h 25m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Reagan-National to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Luis Munoz Marin Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Reagan-National 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, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Luis Munoz Marin Intl. Price data was last updated on January 30, 2026.

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport (average of $143). Flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport in April is currently the most expensive (average of $265). 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 DCA to SJU?

Find hourly flight availability from Reagan-National to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 8, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport as you normally would.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated February 8, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,172 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,254 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,249 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,896 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    Departing from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport will take you 6h 45m. Airlines will cover a distance of 1557 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport round-trip from $103. Other airlines that can offer you cheap pricing are Frontier, from $107, and Delta, from $142. Spirit Airlines is 74% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport are Delta ($68), Southwest ($82), and Frontier ($95).

  • What are the cheapest flights from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    While on average a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport is generally $414, our data shows the cheapest flight currently is $122. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $232 for that flight.

  • Can I find deals for flights from Reagan-National to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Reagan-National to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Reagan-National to Luis Munoz Marin Intl 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 Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport (average of $143). Flying from Washington, D.C. Reagan-National Airport to San Juan Luis Munoz Marin Intl Airport in April is currently the most expensive (average of $265). 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Luis Munoz Marin Intl flights
Baltimore to Luis Munoz Marin Intl flights

Top 7 airlines flying from Reagan-National to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Reagan-National to Luis Munoz Marin Intl. 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 February 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$269FlexibilityNo cancel feeOn-time65%
FrontierCheapest$107Average$363FlexibilityNo cancel feeOn-time62%
DeltaCheapest$142Average$355FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$220Average$432FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$224Average$415FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$241Average$329FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$250Average$452FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.