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Luis Munoz Marin Intl

$85+ Cheap flights from Dulles Intl (IAD) 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJU
Dec 14 — Dec 211
Sun 12/14
Sun 12/21
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl are usually found in June or October, booked 90 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Find flight deals from Dulles Intl to Luis Munoz Marin Intl

Cheapest flights from Dulles Intl to Luis Munoz Marin Intl
Explore the most affordable flight options available from Dulles Intl to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/248:06 pmIAD - SJU
Nonstop3h 47mFrontier
Thu 12/46:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/12$188
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Thu 12/117:18 pmIAD - SJU
2 stops14h 14mFrontier
Thu 12/183:21 pmSJU - IAD
1 stop22h 53mFrontier
Deal found 11/12$191
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Sat 11/297:56 pmIAD - SJU
Nonstop3h 47mFrontier
Thu 12/116:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/12$197
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/1410:38 amIAD - SJU
Nonstop3h 54mFrontier
Fri 12/197:30 amSJU - IAD
1 stop11h 46mFrontier
Deal found 11/12$199
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:06 pmIAD - SJU
Nonstop3h 47mFrontier
Sun 12/76:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/11$200
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/1410:38 amIAD - SJU
Nonstop3h 54mFrontier
Sun 12/214:18 pmSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/12$201
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Thu 12/1110:38 amIAD - SJU
Nonstop3h 54mFrontier
Mon 12/227:25 amSJU - IAD
1 stop11h 51mFrontier
Deal found 11/12$203
This Super.com deal was found by Cheapflights users on 11/13. 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.
Sat 11/297:56 pmIAD - SJU
Nonstop3h 47mFrontier
Sun 12/76:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/13$204
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:38 amIAD - SJU
Nonstop3h 54mMultiple Airlines
Fri 12/124:10 amSJU - IAD
2 stops17h 14mMultiple Airlines
Deal found 11/11$205
This Frontier deal was found by Cheapflights users on 11/13. 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.
Sun 11/308:06 pmIAD - SJU
Nonstop3h 47mFrontier
Sun 12/76:30 amSJU - IAD
Nonstop4h 13mFrontier
Deal found 11/13$206
This Frontier deal was found by Cheapflights users on 11/14. 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.
Fri 11/218:06 pmIAD - SJU
Nonstop3h 47mFrontier
Sun 11/234:08 pmSJU - IAD
Nonstop4h 03mFrontier
Deal found 11/14$207

Cheap flight deals from Dulles Intl to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 November 14, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$188
(Kiwi.com)

One-way from

$85
(CheapOair)

Popular in

April

Cheapest in

June

Average price

$377

Good round-trip deal

$308 or less

Good one-way deal

$77 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to San Juan Luis Munoz Marin Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 November 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Dulles Intl

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 2/23

7:15 am-2:32 pm

1 stop6h 17m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:30 am-6:12 pm

1 stop11h 42m

$225

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 1/18

12:37 pm-11:44 pm

1 stop10h 07m

San Juan Luis Munoz Marin Intl

Fri 1/23

6:15 am-11:44 am

1 stop6h 29m

$262

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sat 1/24

12:23 pm-11:59 pm

1 stop10h 36m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:20 pm-11:06 pm

1 stop8h 46m

$262

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 2/1

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Wed 2/4

5:50 pm-8:55 pm

Nonstop4h 05m

$290

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Wed 1/7

8:27 am-1:17 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Tue 1/13

2:15 pm-9:13 pm

1 stop7h 58m

$291

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 12/9

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Tue 12/16

2:10 pm-9:25 pm

1 stop8h 15m

$295

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Fri 5/1

6:30 am-3:40 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Wed 5/6

1:05 am-7:19 am

1 stop6h 14m

$299

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 11/24

7:01 am-5:26 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Wed 12/3

6:38 pm-12:12 am

1 stop6h 34m

$312

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 12/7

8:27 am-1:17 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Mon 12/15

5:50 pm-8:55 pm

Nonstop4h 05m

$323

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Tue 2/3

8:27 am-1:17 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Fri 2/13

8:10 am-11:15 am

Nonstop4h 05m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 23 results
1
2
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Compare providers for flights from Dulles Intl 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 Dulles Intl to Luis Munoz Marin Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust Mytrip the most. Mytrip 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. Dulles Intl Airport-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 Dulles Intl to Luis Munoz Marin Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Luis Munoz Marin Intl. Price data was last updated on November 7, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport is 90 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport (average of $86). Flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in September is currently the most expensive (average of $272). 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 IAD to SJU?

Find hourly flight availability from Dulles Intl 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 November 14, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport at noon. Doing so could potentially save you 51% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Luis Munoz Marin Intl. Price data was last updated on November 2, 2025.

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

The best insider tips for Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport 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 Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport trip
Airports
IAD

Expect long security queues at IAD, especially in the afternoon. Plan extra time for check-in and security to avoid stress.

Read more about IADby Ramsey Qubein
SJU

For a quick ride from SJU to San Juan, use Uber. It's convenient and avoids the need for cash.

Read more about SJUby Brandon Schultz
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

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 November 14, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,006 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,016 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,051 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,138 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,109 reviews
Delta
7.9
Good
8,006 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in 3h 50m. Fly via Delta or United Airlines to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport is about 1573 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Currently priced at $114, Frontier will fly you from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Spirit Airlines - these airlines can fly you to your destination from $145 and $153, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport for 71% less than the average price by searching for these airlines.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport are Air Canada (61%), United Airlines (61%) and Frontier (57%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport is $69. On average you can expect to pay $295. The most popular route, (Washington, D.C. Dulles Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $180.

  • Can I find deals for flights from Dulles Intl to Luis Munoz Marin Intl that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl 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 Dulles Intl to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Dulles Intl to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport (average of $86). Flying from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in September is currently the most expensive (average of $272). 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 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
Dorado
Fajardo
Rio Grande
Humacao
Luquillo

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Alternative routes for Dulles Intl to Luis Munoz Marin Intl

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

Top 6 airlines flying from Dulles Intl to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Dulles Intl 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 November 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$114Average$282FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$145Average$484FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$153Average$288FlexibilityNo cancel feeOn-time65%
DeltaCheapest$158Average$350FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$161Average$386FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$273Average$495FlexibilityNo cancel feeOn-time69%

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