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San Juan

$120+ Cheap flights from Reagan-National (DCA) to San Juan

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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Juan are usually found in October or February, booked 16 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Reagan-National to San Juan

Cheapest flights from Reagan-National to San Juan
Explore the most affordable flight options available from Reagan-National to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This SmartFares deal was found by Cheapflights users on 2/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:00 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Thu 4/3011:25 pm
SJU
-
DCA
1 stop8h 34m
JetBlue
Deal found 2/15$244
This Cheapflightsfares deal was found by Cheapflights users on 2/17. 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 4/85:01 am
SJU
-
DCA
1 stop8h 02m
JetBlue
Deal found 2/17$256
This KAYAK deal was found by Cheapflights users on 2/17. 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.
Wed 3/42:05 pm
DCA
-
SJU
1 stop8h 44m
JetBlue
Thu 3/56:10 am
SJU
-
DCA
1 stop10h 54m
JetBlue
Deal found 2/17$257
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Mon 3/210:30 am
DCA
-
SJU
1 stop9h 30m
United Airlines
Wed 3/42:05 am
SJU
-
DCA
1 stop8h 24m
United Airlines
Deal found 2/17$262
This KAYAK deal was found by Cheapflights users on 2/14. 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.
Mon 4/66:59 pm
DCA
-
SJU
1 stop6h 30m
JetBlue
Tue 4/145:01 am
SJU
-
DCA
1 stop10h 41m
JetBlue
Deal found 2/14$263
This Cheapflightsfares deal was found by Cheapflights users on 2/15. 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 3/32:05 pm
DCA
-
SJU
1 stop6h 51m
JetBlue
Thu 3/56:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/15$267
This KAYAK deal was found by Cheapflights users on 2/14. 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 4/78:00 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Tue 4/145:01 am
SJU
-
DCA
1 stop8h 32m
JetBlue
Deal found 2/14$268
This Super.com deal was found by Cheapflights users on 2/15. 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
Thu 2/266:59 pm
SJU
-
DCA
Nonstop4h 00m
JetBlue
Deal found 2/15$269
This JetBlue deal was found by Cheapflights users on 2/15. 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.
Wed 3/113:59 pm
DCA
-
SJU
1 stop8h 00m
JetBlue
Wed 3/185:10 am
SJU
-
DCA
1 stop8h 48m
JetBlue
Deal found 2/15$270
This KAYAK deal was found by Cheapflights users on 2/14. 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.
Mon 6/16:45 pm
DCA
-
SJU
1 stop6h 34m
JetBlue
Tue 6/26:00 am
SJU
-
DCA
1 stop9h 55m
JetBlue
Deal found 2/14$271
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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.
Fri 4/248:00 am
DCA
-
SJU
Nonstop3h 45m
JetBlue
Wed 4/296:00 pm
SJU
-
DCA
Nonstop3h 55m
JetBlue
Deal found 2/14$272

Find flight deals from Reagan-National to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to San Juan (PR1). 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 18, 2026.

Round-trip from

$244
(SmartFares)

One-way from

$120
(SmartFares)

Popular in

August

Cheapest in

October

Average price

$358
From Washington, D.C. Reagan-National to San Juan
Search Deals
One-way flight from Washington, D.C. Reagan-National to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to San Juan 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 18, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Juan that are best for you.

Fly from

Reagan-National

Fly to

San Juan

Route

Depart

Return

Price

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 2/28

6:00 am-4:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:30 am-12:00 pm

1 stop6h 30m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 3/2

12:20 pm-11:58 pm

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Fri 3/6

7:00 am-4:27 pm

1 stop10h 27m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 4/20

6:30 am-2:44 pm

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Mon 5/11

1:00 am-10:30 am

1 stop9h 30m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 4/18

9:00 am-4:23 pm

1 stop7h 23m

San Juan Luis Munoz Marin Intl

Fri 4/24

1:25 pm-10:41 pm

1 stop9h 16m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 3/8

6:05 am-4:15 pm

1 stop10h 10m

San Juan Luis Munoz Marin Intl

Tue 3/10

5:55 am-3:55 pm

1 stop10h 00m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 4/13

7:00 am-1:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Fri 4/17

7:40 am-3:38 pm

1 stop7h 58m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 2/28

6:00 pm-6:11 am

2 stops11h 11m

San Juan Luis Munoz Marin Intl

Fri 3/6

2:05 am-8:29 am

1 stop7h 24m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 4/20

4:30 pm-11:50 pm

1 stop7h 20m

San Juan Luis Munoz Marin Intl

Wed 4/22

1:00 am-8:20 am

1 stop7h 20m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 4/12

7:00 am-1:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Tue 4/14

1:00 am-9:30 am

1 stop8h 30m

$262

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Wed 5/6

10:30 am-8:34 pm

1 stop10h 04m

San Juan Luis Munoz Marin Intl

Mon 5/11

1:00 am-9:30 am

1 stop8h 30m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Showing 1-10 of 22 results
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2
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Best time to book a flight from Reagan-National to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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

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

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to San Juan. Price data was last updated on February 13, 2026.

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan is 16 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?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $181). Flying from Washington, D.C. Reagan-National Airport to San Juan in April is currently the most expensive (average of $264). 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 San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 18, 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 as you normally would.

Weekly flight availability from Washington, D.C. Reagan-National Airport to San Juan

Explore weekly flight availability from Reagan-National to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 18, 2026.

The most flights from DCA to PR1 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How often are flights from Washington, D.C. to San Juan delayed?

About 16% of weekly flights between Washington, D.C. and San Juan have experienced delays in the past year, with the average delay time being 146 minutes.

What is the most punctual flight time for Washington, D.C. to San Juan flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to San Juan flights?

Over the last year, JetBlue have had the lowest number of delays on this route, with just 16% of flights being delayed.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated February 18, 2026.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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
9,314 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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
11,304 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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
2,899 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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
Frontier
5.7
Fair
3,048 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

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 San Juan. 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?

    Departing from Washington, D.C. Reagan-National Airport to San Juan will take you 8h 14m. 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 round-trip?

    Spirit Airlines, at $103, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to San Juan.Alternate airlines to your destination round-trip include Frontier and Delta. Users have found that Spirit Airlines is 74% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $82. Frontier flights start at $95 while deals on JetBlue start at $96 one-way.

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

    While on average a flight from Washington, D.C. Reagan-National Airport to San Juan is generally $417, our data shows the cheapest flight currently is $132. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $249 for that flight.

  • Can I find deals for flights from Reagan-National to San Juan that include hotel bookings?

    Yes. In addition to deals on Reagan-National to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to San Juan?

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

  • Can I find deals for business class flights from Reagan-National to San Juan?

    Yes. Cheapflights offers flight deals from Reagan-National to San Juan 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?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $181). Flying from Washington, D.C. Reagan-National Airport to San Juan in April is currently the most expensive (average of $264). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Reagan-National to San Juan

Discover the top 7 airlines that operate flights from Reagan-National to San Juan. 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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$272FlexibilityNo cancel feeOn-time65%
FrontierCheapest$107Average$363FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$355FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$220Average$435FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$223Average$415FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$241Average$332FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$250Average$430FlexibilityNo cancel feeOn-time69%

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