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$113+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
May 4 — May 111
Sun 5/4
Sun 5/11
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 September or October, booked 67 days in advance, depart on a Tuesday or Monday 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 April 29, 2025.

Round-trip from

$225
(Delta)

One-way from

$113
(Delta)

Popular in

December

Cheapest in

September

Average price

$449
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. 14% potential increase in price ($73 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 April 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 April 29, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 5/255:00 pmDCA - SJU
1 stop6h 42mDelta
Thu 5/296:15 amSJU - DCA
1 stop6h 28mDelta
Deal found 4/28$225
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 5/243:54 pmDCA - SJU
1 stop8h 05mAmerican Airlines
Thu 5/296:10 amSJU - DCA
1 stop8h 14mAmerican Airlines
Deal found 4/28$250
This JetBlue deal was found by Cheapflights users on 4/27. 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 5/286:09 amDCA - SJU
1 stop10h 06mJetBlue
Sat 6/71:57 pmSJU - DCA
1 stop9h 01mJetBlue
Deal found 4/27$297
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 6/176:00 amDCA - SJU
1 stop7h 45mUnited Airlines
Wed 6/251:05 amSJU - DCA
1 stop7h 17mUnited Airlines
Deal found 4/28$304
This Southwest deal was found by Cheapflights users on 4/28. 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.
Wed 9/1011:50 amDCA - SJU
2 stops10h 55mSouthwest
Mon 9/155:00 amSJU - DCA
2 stops7h 50mSouthwest
Deal found 4/28$392

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 April 29, 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

Sun 5/25

5:00 pm-11:42 pm

1 stop6h 42m

San Juan Luis Munoz Marin Intl

Thu 5/29

6:15 am-12:43 pm

1 stop6h 28m

$225

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 5/24

3:54 pm-11:59 pm

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Thu 5/29

6:10 am-2:24 pm

1 stop8h 14m

$250

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Wed 5/28

6:09 am-4:15 pm

1 stop10h 06m

San Juan Luis Munoz Marin Intl

Sat 6/7

1:57 pm-10:58 pm

1 stop9h 01m

$297

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 6/17

6:00 am-1:45 pm

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Wed 6/25

1:05 am-8:22 am

1 stop7h 17m

$304

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 5/19

3:00 pm-11:55 pm

2 stops8h 55m

San Juan Luis Munoz Marin Intl

Sat 5/24

5:25 am-3:30 pm

2 stops10h 05m

$415

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 5/27

6:00 am-12:45 pm

1 stop6h 45m

$113

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 6/1

7:00 am-1:45 pm

1 stop6h 45m

$123

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 5/26

10:15 pm-12:45 pm

1 stop14h 30m

$133

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 5/19

6:09 am-4:15 pm

1 stop10h 06m

$149

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 7/15

6:55 am-4:00 pm

2 stops9h 05m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 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 April 25, 2025.

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan is 67 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 December is currently the most expensive (average of $336). 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 April 29, 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.

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 April 29, 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
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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?

    Delta, at $225, 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 JetBlue. Users have found that Delta is 46% 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 Delta, which is currently one of the cheapest options available, starting at $113. United Airlines flights start at $123 while deals on American Airlines start at $133 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 $334, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $225 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 December is currently the most expensive (average of $336). 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$271FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$123Average$305FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$220Average$453FlexibilityNo cancel feeOn-time69%
DeltaCheapest$239Average$342FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$461FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$264Average$410FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$322Average$491FlexibilityNo cancel feeOn-time63%

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