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Washington, D.C.

$84+ Cheap flights from Luis Munoz Marin Intl (SJU) to Washington, D.C. (WAS)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — WAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Find cheap flights from Luis Munoz Marin Intl to Washington, D.C. with Cheapflights

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Washington, D.C. are usually found in July or May, booked 27 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Washington, D.C. (WAS). 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 September 11, 2025.

Round-trip from

$157
(Cheapflightsfares)

One-way from

$84
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$321

Good round-trip deal

$215 or less

Good one-way deal

$119 or less
From San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS)
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One-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS).
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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS).
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Find flight deals from Luis Munoz Marin Intl to Washington, D.C.

Cheapest flights from Luis Munoz Marin Intl to Washington, D.C.
Explore the most affordable flight options available from Luis Munoz Marin Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:05 amSJU - BWI
Nonstop4h 03mSpirit Airlines
Sun 10/268:42 pmBWI - SJU
Nonstop3h 54mSpirit Airlines
Deal found 9/10$157
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:05 amSJU - BWI
Nonstop4h 00mSpirit Airlines
Tue 10/78:00 amBWI - SJU
1 stop6h 12mSpirit Airlines
Deal found 9/10$165
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:05 amSJU - BWI
Nonstop4h 00mSpirit Airlines
Sun 10/58:42 pmBWI - SJU
Nonstop3h 54mSpirit Airlines
Deal found 9/11$169
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:59 amSJU - BWI
1 stop9h 21mSpirit Airlines
Sun 9/288:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Deal found 9/11$177
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Sun 9/288:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Deal found 9/9$179
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/23:45 pmSJU - IAD
Nonstop3h 56mFrontier
Sun 11/97:26 pmIAD - SJU
Nonstop3h 52mFrontier
Deal found 9/11$181
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Sun 10/58:42 pmBWI - SJU
Nonstop3h 54mSpirit Airlines
Deal found 9/9$187
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Wed 9/246:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Sat 9/279:39 pmBWI - SJU
1 stop16h 32mSpirit Airlines
Deal found 9/9$188
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:05 amSJU - BWI
Nonstop4h 03mSpirit Airlines
Sat 10/258:17 pmBWI - SJU
1 stop14h 39mSpirit Airlines
Deal found 9/10$189
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Wed 9/246:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Tue 9/301:17 pmBWI - SJU
1 stop7h 39mSpirit Airlines
Deal found 9/9$195
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Mon 9/296:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Sun 10/58:42 pmBWI - SJU
Nonstop3h 54mSpirit Airlines
Deal found 9/9$196
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/224:05 pmSJU - IAD
Nonstop4h 03mFrontier
Sat 11/297:53 pmIAD - SJU
Nonstop3h 47mFrontier
Deal found 9/10$197

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl to Washington, D.C. 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 September 11, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sun 11/2

3:45 pm-6:41 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Sun 11/9

7:26 pm-12:18 am

Nonstop3h 52m

$181

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Fri 10/17

6:05 pm-9:57 pm

Nonstop3h 52m

Washington, D.C. Reagan-National

Mon 10/20

8:30 am-12:15 pm

Nonstop3h 45m

$234

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Thu 10/16

6:07 pm-9:59 pm

Nonstop3h 52m

Washington, D.C. Reagan-National

Wed 10/22

8:30 am-12:15 pm

Nonstop3h 45m

$236

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/9

1:30 pm-10:28 pm

1 stop8h 58m

Washington, D.C. Dulles Intl

Mon 10/13

8:39 am-12:34 pm

Nonstop3h 55m

$242

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Wed 10/22

1:06 pm-11:04 pm

1 stop9h 58m

Washington, D.C. Reagan-National

Wed 10/29

6:05 am-4:25 pm

1 stop10h 20m

$243

San JuanBaltimore

SJU - BWI

SJUBWI

San Juan Luis Munoz Marin Intl

Wed 10/1

1:05 am-5:26 pm

2 stops16h 21m

Baltimore/Washington

Tue 10/7

6:29 am-2:44 pm

1 stop8h 15m

$243

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Thu 10/2

1:32 pm-11:41 pm

1 stop10h 09m

Washington, D.C. Reagan-National

Sun 10/5

6:05 am-12:13 pm

1 stop6h 08m

$243

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Thu 11/13

4:52 pm-11:59 pm

1 stop8h 07m

Washington, D.C. Reagan-National

Sat 11/15

8:00 am-9:00 pm

2 stops12h 00m

$243

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Wed 10/22

1:05 am-10:28 am

1 stop9h 23m

Washington, D.C. Reagan-National

Sat 10/25

6:00 am-3:42 pm

1 stop9h 42m

$243

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/2

1:30 pm-10:28 pm

1 stop8h 58m

Washington, D.C. Dulles Intl

Tue 10/7

6:30 am-2:44 pm

1 stop8h 14m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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The best insider tips for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Juan Luis Munoz Marin Intl Airport to Washington, D.C. trip
Airports
SJU

Security wait times at SJU can vary dramatically, so arrive two hours early for domestic flights to avoid delays.

Read more about SJUby Brandon Schultz
IAD

The Silver Line Metro reaches IAD in under 40 minutes, offering a cheap and convenient way to reach Washington, D.C.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Luis Munoz Marin Intl to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Washington, D.C.. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C., you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. (average of $292). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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 SJU to WAS?

Find hourly flight availability from Luis Munoz Marin Intl to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. at noon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Washington, D.C.. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.

Explore weekly flight availability from Luis Munoz Marin Intl to Washington, D.C.. 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 September 11, 2025.

The most flights from SJU to WAS 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 much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C., such as Southwest, United Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,913 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to Washington, D.C.. 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 San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    A quick flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. can take about 3h 52m. Frontier provides one of the quickest options available for as low as $234. San Juan Luis Munoz Marin Intl Airport and Washington, D.C. are separated by a distance of 1557 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. round-trip from $99. Other airlines that can offer you cheap pricing are United Airlines, from $164, and Southwest, from $220. Frontier is currently priced 65% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $116. JetBlue flights start at $117 while deals on United Airlines start at $117 one-way.

  • What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    When deciding which route to take from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. consider San Juan Luis Munoz Marin Intl - Baltimore/Washington, San Juan Luis Munoz Marin Intl - Washington, D.C. Reagan-National or San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl as they are the most popular.

  • What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    Before booking your flight to Washington, D.C. from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (81%), United Airlines (81%), Frontier( 81%).

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

    Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.? While on average our users pay $487, our data indicates the cheapest price to be $107. The most popular route (San Juan Luis Munoz Marin Intl - Baltimore/Washington), is priced around $157.

  • Can I find deals for flights from Luis Munoz Marin Intl to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Washington, D.C.?

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

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Washington, D.C.?

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

    Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. (average of $292). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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Alternative routes for Luis Munoz Marin Intl to Washington, D.C.

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

Top 7 airlines flying from Luis Munoz Marin Intl to Washington, D.C.

Discover the top 7 airlines that operate flights from Luis Munoz Marin Intl to Washington, D.C.. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$242FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$111Average$201FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$164Average$466FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$190Average$364FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$220Average$364FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$226Average$386FlexibilityNo cancel feeOn-time62%
DeltaCheapest$246Average$388FlexibilityNo cancel feeOn-timeN/A

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