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San Juan

$146+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SJU
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
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 70 days in advance, depart on a Tuesday or Sunday 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 August 4, 2026.

This American Airlines deal was found by Cheapflights users on 8/1. 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.
Mon 8/103:11 pm
DCA
-
SJU
1 stop8h 48m
American Airlines
Thu 8/135:10 pm
SJU
-
DCA
1 stop7h 47m
American Airlines
Deal found 8/1$304
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Wed 8/196:52 am
DCA
-
SJU
1 stop7h 59m
American Airlines
Tue 8/2510:33 am
SJU
-
DCA
1 stop7h 27m
American Airlines
Deal found 8/1$305
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Sun 8/306:00 am
DCA
-
SJU
1 stop12h 33m
American Airlines
Sun 9/67:03 am
SJU
-
DCA
1 stop14h 10m
American Airlines
Deal found 8/2$306
This Super.com deal was found by Cheapflights users on 7/31. 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.
Tue 8/188:00 am
DCA
-
SJU
Nonstop3h 59m
JetBlue
Fri 8/212:20 am
SJU
-
DCA
1 stop8h 42m
JetBlue
Deal found 7/31$307
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 8/123:11 pm
DCA
-
SJU
1 stop8h 48m
American Airlines
Wed 8/1910:33 am
SJU
-
DCA
1 stop11h 37m
American Airlines
Deal found 7/31$309
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 8/189:20 am
DCA
-
SJU
1 stop12h 35m
American Airlines
Sun 8/237:24 pm
SJU
-
DCA
1 stop14h 06m
American Airlines
Deal found 8/1$310
This Southwest deal was found by Cheapflights users on 7/31. 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.
Fri 10/302:40 pm
DCA
-
SJU
1 stop8h 25m
Southwest
Mon 11/26:05 am
SJU
-
DCA
1 stop13h 10m
Southwest
Deal found 7/31$311
This Super.com deal was found by Cheapflights users on 8/2. 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.
Thu 9/108:00 am
DCA
-
SJU
Nonstop3h 52m
JetBlue
Sat 9/196:07 pm
SJU
-
DCA
Nonstop3h 51m
JetBlue
Deal found 8/2$312
This Super.com deal was found by Cheapflights users on 7/31. 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.
Thu 9/248:00 am
DCA
-
SJU
Nonstop3h 52m
JetBlue
Sun 9/276:07 pm
SJU
-
DCA
Nonstop3h 51m
JetBlue
Deal found 7/31$313
This Super.com deal was found by Cheapflights users on 8/3. 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.
Fri 10/28:00 am
DCA
-
SJU
Nonstop3h 52m
JetBlue
Tue 10/65:55 pm
SJU
-
DCA
Nonstop3h 51m
JetBlue
Deal found 8/3$314
This Super.com deal was found by Cheapflights users on 8/1. 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 9/238:00 am
DCA
-
SJU
Nonstop3h 52m
JetBlue
Mon 9/286:07 pm
SJU
-
DCA
Nonstop3h 51m
JetBlue
Deal found 8/1$315
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 9/179:00 pm
DCA
-
SJU
1 stop14h 00m
American Airlines
Sun 9/206:00 am
SJU
-
DCA
1 stop6h 38m
American Airlines
Deal found 7/31$316

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 August 4, 2026.

Round-trip from

$304
(American Airlines)

One-way from

$146
(Super.com)

Popular in

June

Cheapest in

October

Average price

$458
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. 11% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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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 August 4, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 9/14

5:05 pm-11:55 pm

1 stop6h 50m

San Juan Luis Munoz Marin Intl

Mon 9/21

5:45 pm-11:55 pm

1 stop6h 10m

$311

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 8/31

6:30 am-8:38 pm

2 stops14h 08m

San Juan Luis Munoz Marin Intl

Thu 9/3

1:00 am-7:49 am

1 stop6h 49m

$316

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 11/15

3:25 pm-11:30 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Fri 11/20

6:05 am-11:15 am

1 stop6h 10m

$331

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 9/11

1:30 pm-11:10 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Mon 9/14

5:45 pm-11:55 pm

1 stop6h 10m

$345

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 10/9

3:25 pm-1:20 am

2 stops9h 55m

San Juan Luis Munoz Marin Intl

Thu 10/15

5:00 am-2:15 pm

2 stops9h 15m

$346

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 10/30

3:55 pm-11:25 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

Tue 11/3

2:59 pm-8:59 pm

1 stop7h 00m

$349

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 8/16

6:35 pm-12:30 am

1 stop5h 55m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:30 am-3:50 pm

2 stops9h 20m

$365

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sat 9/19

6:00 am-4:40 pm

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Tue 9/22

8:20 am-6:25 pm

2 stops10h 05m

$376
Quickest round-trip

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Thu 9/3

8:00 am-11:59 am

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Thu 9/3

6:07 pm-9:59 pm

Nonstop3h 52m

$382

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Fri 1/22

9:50 am-5:20 pm

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Wed 1/27

2:59 pm-9:03 pm

1 stop7h 04m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 23 resultsSorted by cheapest first
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3

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

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $300). Flying from Washington, D.C. Reagan-National Airport to San Juan in June is currently the most expensive (average of $532). 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 August 4, 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.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to San Juan?

Airfare is below average for this route at the moment.
Washington, D.C. Reagan-National Airport to San Juan flights typically cost between $338 and $514 in August.
The cheapest round-trip price found within the last 5 days was $304 on American Airlines (Aug 17-Aug 21).

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

About 22% of weekly flights between Washington, D.C. and San Juan have experienced delays in the past year, with the average delay time being 149 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?

Monday tends to have the lowest number of delays on this route, whereas Friday 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 22% of flights being delayed.

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

The best time to book flights from Washington, D.C. Reagan-National Airport to San Juan is 69 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.

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 August 4, 2026.
See what other customers who have flown with Southwest,United Airlines, andJetBlue 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
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,221 reviews
Southwest
8.0
Very good
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,060 reviews
Southwest
8.0
Very good
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
JetBlue
7.2
Good
3,026 reviews
Southwest
8.0
Very good
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,845 reviews
Southwest
8.0
Very good
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Frontier
5.6
Fair
2,736 reviews
Southwest
8.0
Very good
4,221 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

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 6h 50m. 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?

    Frontier, 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 Delta and United Airlines. Users have found that Frontier is 75% 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 $68. JetBlue flights start at $120 while deals on American Airlines start at $120 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 $378, our data shows the cheapest flight currently is $166. When looking at the most popular route, (Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl), you can expect to pay $280 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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Juan (average of $300). Flying from Washington, D.C. Reagan-National Airport to San Juan in June is currently the most expensive (average of $532). 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 6 airlines flying from Reagan-National to San Juan

Discover the top 6 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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$403FlexibilityNo cancel feeOn-time62%
DeltaCheapest$142Average$462FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$230Average$406FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$231Average$448FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$266Average$334FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$271Average$403FlexibilityNo cancel feeOn-time63%

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