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$103+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
juin 17 — juin 241
mar. 6/17
mar. 6/24
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 September, booked 48 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap 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 juin 12, 2025.

Round-trip from

$181
(United Airlines)

One-way from

$103
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$460
From Washington, D.C. Reagan-National to San Juan
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One-way flight from Washington, D.C. Reagan-National to San Juan
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Highest demand for flights based on searches. 15% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 juin 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 8/127:59 pmDCA - SJU
1 stop9h 31mUnited Airlines
jeu. 8/141:05 amSJU - DCA
1 stop7h 17mUnited Airlines
Deal found 6/10$181
This American Airlines deal was found by Cheapflights users on 6/11. 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.
sam. 6/141:40 pmDCA - SJU
1 stop9h 45mAmerican Airlines
jeu. 6/1912:59 amSJU - DCA
1 stop10h 05mAmerican Airlines
Deal found 6/11$190
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/97:25 amDCA - SJU
1 stop6h 25mSouthwest
mar. 7/152:45 pmSJU - DCA
1 stop8h 00mSouthwest
Deal found 6/10$220
This Delta deal was found by Cheapflights users on 6/10. 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.
mar. 7/83:59 pmDCA - SJU
1 stop6h 24mDelta
sam. 7/127:00 amSJU - DCA
1 stop11h 14mDelta
Deal found 6/10$255
This JetBlue deal was found by Cheapflights users on 6/10. 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.
lun. 8/188:00 amDCA - SJU
Nonstop3h 57mJetBlue
jeu. 8/211:10 pmSJU - DCA
1 stop7h 49mJetBlue
Deal found 6/10$267

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 juin 12, 2025.
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

mar. 8/12

7:59 pm-5:30 am

1 stop9h 31m

San Juan Luis Munoz Marin Intl

jeu. 8/14

1:05 am-8:22 am

1 stop7h 17m

$181

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 7/14

6:05 am-1:26 pm

1 stop7h 21m

San Juan Luis Munoz Marin Intl

mer. 7/23

7:00 am-6:14 pm

1 stop11h 14m

$215

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

mer. 7/9

7:25 am-1:50 pm

1 stop6h 25m

San Juan Luis Munoz Marin Intl

mar. 7/15

2:45 pm-10:45 pm

1 stop8h 00m

$220

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 8/18

8:00 am-11:57 am

Nonstop3h 57m

San Juan Luis Munoz Marin Intl

jeu. 8/21

1:10 pm-8:59 pm

1 stop7h 49m

$267

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 6/30

11:30 am-11:25 pm

1 stop11h 55m

San Juan Luis Munoz Marin Intl

ven. 7/4

6:05 am-6:24 pm

1 stop12h 19m

$359

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 6/23

6:10 am-10:55 pm

1 stop16h 45m

$103

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 8/18

4:59 pm-11:51 pm

1 stop6h 52m

$108

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

mar. 10/28

6:30 am-12:34 pm

1 stop6h 04m

$124

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

lun. 8/18

4:05 pm-5:30 am

2 stops13h 25m

$128

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

mar. 7/1

7:25 am-1:50 pm

1 stop6h 25m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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 June 9, 2025.

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan is 48 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, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $254). Flying from Washington, D.C. Reagan-National Airport to San Juan in June is currently the most expensive (average of $339). 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 juin 12, 2025.

When flying from Washington, D.C. Reagan-National Airport to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight at noon.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to San Juan flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 juin 12, 2025.

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).

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 juin 12, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Washington, D.C. to San Juan have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

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

    United Airlines, at $181, 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 American Airlines and Southwest. Users have found that United Airlines is 57% 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 American Airlines, which is currently one of the cheapest options available, starting at $103. United Airlines flights start at $113 while deals on JetBlue start at $124 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 $359, our data shows the cheapest flight currently is $173. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $200 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, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $254). Flying from Washington, D.C. Reagan-National Airport to San Juan in June is currently the most expensive (average of $339). 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

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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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$79Average$218FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$113Average$281FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$220Average$455FlexibilityNo cancel feeOn-time69%
DeltaCheapest$237Average$377FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$448FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$265Average$408FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$327Average$497FlexibilityNo cancel feeOn-time63%

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