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Luis Munoz Marin Intl

$128+ Cheap flights from Washington, D.C. (WAS) to Luis Munoz Marin Intl (SJU)

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SJU
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Find cheap flights from Washington, D.C. to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Washington, D.C. to San Juan Luis Munoz Marin Intl are usually found in October or February, booked 48 days in advance, depart on a Sunday or Monday and return on a Thursday

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

Cheapest flights from Washington, D.C. to Luis Munoz Marin Intl
Explore the most affordable flight options available from Washington, D.C. to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/187:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Sat 8/225:37 pm
SJU
-
BWI
2 stops37h 49m
Frontier
Deal found 7/23$264
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/187:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Wed 8/197:30 am
SJU
-
BWI
1 stop12h 33m
Frontier
Deal found 7/23$266
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Tue 8/257:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Mon 8/316:35 am
SJU
-
BWI
1 stop29h 50m
Frontier
Deal found 7/22$267
This eDestinos deal was found by Cheapflights users on 7/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Mon 8/317:30 am
SJU
-
BWI
1 stop12h 33m
Frontier
Deal found 7/22$268
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/124:19 pm
BWI
-
SJU
1 stop8h 04m
Frontier
Thu 8/137:10 am
SJU
-
BWI
1 stop11h 22m
Frontier
Deal found 7/20$269
This Expedia deal was found by Cheapflights users on 7/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Mon 8/312:14 pm
SJU
-
BWI
Nonstop4h 09m
Frontier
Deal found 7/20$270
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Fri 9/118:00 am
BWI
-
SJU
2 stops15h 57m
Frontier
Tue 9/155:12 pm
SJU
-
BWI
1 stop19h 48m
Frontier
Deal found 7/20$271
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/316:37 pm
BWI
-
SJU
1 stop12h 07m
Frontier
Sun 9/62:14 pm
SJU
-
BWI
Nonstop4h 09m
Frontier
Deal found 7/21$272
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/174:19 pm
BWI
-
SJU
1 stop8h 04m
Frontier
Thu 8/203:48 pm
SJU
-
BWI
1 stop7h 56m
Frontier
Deal found 7/21$273
This Frontier deal was found by Cheapflights users on 7/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:35 pm
BWI
-
SJU
Nonstop4h 05m
Frontier
Tue 8/252:14 pm
SJU
-
BWI
Nonstop4h 09m
Frontier
Deal found 7/21$274
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Sun 8/237:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Sun 8/307:14 pm
SJU
-
BWI
1 stop22h 28m
Frontier
Deal found 7/24$275
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Fri 8/217:18 pm
BWI
-
SJU
Nonstop4h 02m
Frontier
Thu 8/277:30 am
SJU
-
BWI
1 stop12h 33m
Frontier
Deal found 7/21$276

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Luis Munoz Marin Intl (SJU). 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$264
(eDestinos)

One-way from

$128
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$431

Good round-trip deal

$297 or less

Good one-way deal

$145 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Washington, D.C. (WAS) to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Washington, D.C. (WAS) to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($48 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 July 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to San Juan Luis Munoz Marin Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to San Juan Luis Munoz Marin Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Luis Munoz Marin Intl 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 July 25, 2026.
Use the filters below to find and compare flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport 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

Thu 8/27

12:15 pm-10:10 pm

2 stops9h 55m

San Juan Luis Munoz Marin Intl

Mon 8/31

5:45 pm-11:55 pm

1 stop6h 10m

$316

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 8/25

6:00 am-1:35 pm

1 stop7h 35m

San Juan Luis Munoz Marin Intl

Fri 8/28

6:30 am-2:40 pm

2 stops8h 10m

$316

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 9/1

6:00 am-12:20 pm

1 stop6h 20m

San Juan Luis Munoz Marin Intl

Sat 9/5

5:05 am-1:55 pm

2 stops8h 50m

$316

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 8/25

6:15 am-2:44 pm

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Fri 8/28

4:55 pm-8:47 pm

Nonstop3h 52m

$322

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Fri 8/28

6:16 am-1:45 pm

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Tue 9/1

4:55 pm-8:47 pm

Nonstop3h 52m

$322

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 8/23

6:15 am-2:44 pm

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Thu 8/27

2:20 pm-12:30 am

1 stop10h 10m

$326

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 9/22

6:30 am-2:44 pm

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Tue 9/29

7:00 am-4:13 pm

1 stop9h 13m

$326

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Thu 9/10

6:45 pm-10:50 pm

Nonstop4h 05m

San Juan Luis Munoz Marin Intl

Thu 9/24

5:30 am-9:35 am

Nonstop4h 05m

$331

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Thu 9/24

11:45 am-8:05 pm

1 stop8h 20m

San Juan Luis Munoz Marin Intl

Mon 9/28

5:30 am-9:35 am

Nonstop4h 05m

$336

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 8/22

8:40 am-12:34 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Mon 8/24

1:00 am-7:19 am

1 stop6h 19m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Luis Munoz Marin Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport (average of $321). Flying from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $474). 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 WAS to SJU?

Find hourly flight availability from Washington, D.C. to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the morning.

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

Explore weekly flight availability from Washington, D.C. to Luis Munoz Marin Intl. 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 July 25, 2026.

The most flights from WAS to SJU are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

Airfare is below average for this route at the moment.
Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flights typically cost between $300 and $483 in August.
The cheapest round-trip price found within the last 5 days was $264 on Frontier (Aug 24-Aug 31).

What’s the top layover airport for flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

Share of 1-stop round-trip flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Orlando (MCO) – chosen by Cheapflights users on 60% of 1-stop itineraries from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Fort Lauderdale (FLL) is the most affordable 1-stop option, with an average round-trip price of $209.

What’s the fastest layover option from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Fort Lauderdale (FLL) have the shortest average one-way travel time for 1-stop routes: 6h 39m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Fort Lauderdale (FLL) offer the fastest connection on this route, with an average layover time of 1h 13m.

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

About 20% of weekly flights between Washington, D.C. and San Juan have experienced delays in the past year, with the average delay time being 135 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 evening 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 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, United Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.

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

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Luis Munoz Marin Intl. Price data was last updated on July 25, 2026.

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

The best insider tips for Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to San Juan Luis Munoz Marin Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD

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 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

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated July 25, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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
4,233 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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
10,034 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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
11,851 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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
7.1
Good
3,024 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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
2,771 reviews
Southwest
8.0
Very good
4,233 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

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 Washington, D.C. to Luis Munoz Marin Intl. 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. to San Juan Luis Munoz Marin Intl Airport?

    Airlines like Southwest, United Airlines, and JetBlue fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport in about 3h 59m. The time it takes to get you to your destination can typically vary by up to 5h 56m. The distance between Washington, D.C. and San Juan Luis Munoz Marin Intl Airport is about 1557 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Frontier is currently your cheapest option to San Juan Luis Munoz Marin Intl Airport, with prices starting at $89. Additional round-trip tickets that might be worth considering are offered by Delta and JetBlue, with the lowest prices starting at $136 and $161, respectively. Frontier is 76% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $54. Delta flights start at $68 while deals on JetBlue start at $120 one-way.

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

    The most popular flight routes from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport are Baltimore/Washington - San Juan Luis Munoz Marin Intl, Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl and Washington, D.C. Reagan-National - San Juan Luis Munoz Marin Intl.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport consider choosing Air Canada (83%), United Airlines (83%) or Brussels Airlines (78%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport? While on average our users pay $844, our data indicates the cheapest price to be $178. The most popular route (Baltimore/Washington - San Juan Luis Munoz Marin Intl), is priced around $192.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport (average of $321). Flying from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $474). 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.

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Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Luquillo
Dorado
Rio Grande
Humacao
Bayamón

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

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

Top 6 airlines flying from Washington, D.C. to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Washington, D.C. to Luis Munoz Marin Intl. 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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$358FlexibilityNo cancel feeOn-time62%
DeltaCheapest$135Average$520FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$146Average$445FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$172Average$461FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$220Average$470FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$225Average$405FlexibilityNo cancel feeOn-time71%

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